Publications 2025

Crinò SF, Aabakken L, Bapaye A, Chan S, Kida M, Law R, Maluf-Filho F, Mekaroonkamol P, de Moura EGH, Bestetti A, Mostafa I, Park DH, Rajaram RB, Reddy ND, Seo DW, Pittayanon R, Teoh AYB (2025)
World Endoscopy Organization guidelines on endoscopic retrograde cholangiopancreatography biliary cannulation and sphincterotomy techniques
Dig Endosc (in press)
DOI 10.1111/den.15060, PubMed 40518920

Fretheim H, Barua I, Bakland G, Dhainaut A, Halse AK, Carstens MN, Didriksen H, Midtvedt Ø, Lundin KEA, Aabakken L, Sarna VK, Zaré HK, Khanna D, Distler O, Midtvedt T, Bækkevold ES, Olsen IC, Domanska D, Pesonen ME, Molberg Ø, Hoffmann-Vold AM (2025)
Faecal microbiota transplantation in patients with systemic sclerosis and lower gastrointestinal tract symptoms in Norway (ReSScue): a phase 2, randomised, double-blind, placebo-controlled trial
Lancet Rheumatol, 7 (5), e323-e332
DOI 10.1016/S2665-9913(24)00334-5, PubMed 39900089

Grimstad T, Carlsen A, Kvaløy JT, Bolstad N, Warren DJ, Aabakken L, Lundin KEA, Karlsen L, Steinsbø Ø, Omdal R (2025)
Fatigue in Inflammatory Bowel Disease: No Effect of Serum Concentrations of Infliximab, Adalimumab or Anti-Drug Antibodies During Maintenance Therapy
Scand J Immunol, 101 (5), e70029
DOI 10.1111/sji.70029, PubMed 40289444

Steinsbø Ø, Aasprong OG, Aabakken L, Karlsen LN, Grimstad T (2025)
Fecal Calprotectin Correlates with Disease Extent but Remains a Reliable Marker of Mucosal Healing in Ulcerative Colitis
Am J Gastroenterol (in press)
DOI 10.14309/ajg.0000000000003339, PubMed 39882797

Publications 2024

Bhat P, Kaffes AJ, Lassen K, Aabakken L (2024)
Upper gastrointestinal endoscopy in the surgically altered patient
Dig Endosc, 36 (10), 1077-1093
DOI 10.1111/den.14823, PubMed 38952202

Farnes I, Lund-Iversen M, Aabakken L, Verbeke C, Labori KJ (2024)
Molecular testing for personalized therapy is underutilized in patients with borderline resectable and locally advanced pancreatic cancer - real world data from the NORPACT-2 study
Scand J Gastroenterol, 59 (9), 1093-1096
DOI 10.1080/00365521.2024.2373115, PubMed 38957079

Knatten CK, Dahlseng MO, Perminow G, Skari H, Austrheim AI, Nyenget T, Aabakken L, Schistad O, Stensrud KJ, Bjørnland K (2024)
Push-PEG or Pull-PEG: Does the Technique Matter? A Prospective Study Comparing Outcomes After Gastrostomy Placement
J Pediatr Surg, 59 (9), 1879-1885
DOI 10.1016/j.jpedsurg.2024.03.045, PubMed 38604831

Mohamed R, Tejaswi S, Aabakken L, Ponsioen CY, Bowlus CL, Adler DG, Forbes N, Paulsen V, Voermans RP, Urayama S, Peetermans J, Rousseau MJ, Eksteen B (2024)
Per-oral cholangioscopy in patients with primary sclerosing cholangitis: a 12-month follow-up study
Endosc Int Open, 12 (2), E237-E244
DOI 10.1055/a-2236-7557, PubMed 38362361

Moreels TG, Aabakken L, Arvanitaki M, Knabe M, Beyna T (2024)
Enteroscopy-assisted ERCP in patients with surgically altered anatomy: Multicenter prospective registry (SAMISEN-B) using motorized spiral enteroscopy
Endosc Int Open, 12 (11), E1392-E1400
DOI 10.1055/a-2443-1514, PubMed 39610946

Moreels TG, Aabakken L, Arvanitakis M, Knabe M, Beyna T (2024)
Correction: Enteroscopy-assisted ERCP in patients with surgically altered anatomy: Multicenter prospective registry (SAMISEN-B) using motorized spiral enteroscopy
Endosc Int Open, 12 (11), C10
DOI 10.1055/a-2494-3747, PubMed 39635273

Muchiri SW, Ogutu EO, Oyiro PO, Aabakken L (2024)
Clinicopathologic characteristics and treatment outcomes of pancreatic cancer patients at a tertiary referral hospital in Kenya
Ecancermedicalscience, 18, 1682
DOI 10.3332/ecancer.2024.1682, PubMed 38566769

van der Ploeg K, de Jonge PJF, Lammers WJ, Koch AD, Vos MC, Paulsen V, Aabakken L, Bruno M (2024)
Performance of a single-use gastroscope for esophagogastroduodenoscopy: Prospective evaluation
Endosc Int Open, 12 (3), E428-E434
DOI 10.1055/a-2271-2303, PubMed 38504741

van der Ploeg K, de Jonge PJF, Lammers WJ, Koch AD, Vos MC, Paulsen V, Aabakken L, Bruno M (2024)
Correction: Performance of a single-use gastroscope for esophagogastroduodenoscopy: Prospective evaluation
Endosc Int Open, 12 (3), C6
DOI 10.1055/a-2412-6842, PubMed 39279910

Publications 2023

Cunha Neves JA, Rodríguez de Santiago E, Aabakken L (2023)
Approaches for greening endoscopy and reducing waste
Gut, 72 (12), 2204-2206
DOI 10.1136/gutjnl-2023-330917, PubMed 37977580

Farnes I, Kleive D, Verbeke CS, Aabakken L, Issa-Epe A, Småstuen MC, Fosby BV, Dueland S, Line PD, Labori KJ (2023)
Resection rates and intention-to-treat outcomes in borderline and locally advanced pancreatic cancer: real-world data from a population-based, prospective cohort study (NORPACT-2)
BJS Open, 7 (6)
DOI 10.1093/bjsopen/zrad137, PubMed 38155512

Farnes I, Paulsen V, Verbeke CS, Tønnesen CJ, Aabakken L, Labori KJ (2023)
Performance and safety of diagnostic EUS FNA/FNB and therapeutic ERCP in patients with borderline resectable and locally advanced pancreatic cancer - results from a population-based, prospective cohort study
Scand J Gastroenterol, 59 (4), 496-502
DOI 10.1080/00365521.2023.2290456, PubMed 38126766

Helgadottir H, Folseraas T, Kemmerich G, Aabakken L, Jørgensen KK, Vesterhus M (2023)
[Primary sclerosing cholangitis]
Tidsskr Nor Laegeforen, 143 (17)
DOI 10.4045/tidsskr.23.0156, PubMed 37987062

Mikalsen IM, Breder S, Medhus AW, Folseraas T, Aabakken L, Ånonsen KV (2023)
ERCP for the initial management of malignant biliary obstruction - real world data on 596 procedures
Scand J Gastroenterol, 59 (3), 369-377
DOI 10.1080/00365521.2023.2282375, PubMed 37994406

Skjellerudsveen BM, Omdal R, Hetta AK, Kvaløy JT, Aabakken L, Skoie IM, Grimstad T (2023)
Less, but not gone-gluten-free diet effects on fatigue in celiac disease: a prospective controlled study
Front Med (Lausanne), 10, 1242512
DOI 10.3389/fmed.2023.1242512, PubMed 37766922

Strahm N, Didriksen H, Fretheim H, Molberg Ø, Midtvedt Ø, Farstad IN, Midtvedt T, Lundin KEA, Aabakken L, Błyszczuk P, Distler O, Kania G, Hoffmann-Vold AM (2023)
Effects of faecal microbiota transplantation on the small intestinal mucosa in systemic sclerosis
Rheumatology (Oxford), 62 (8), 2918-2929
DOI 10.1093/rheumatology/kead014, PubMed 36688692

Tønnesen CJ, Hjelmesæth J, Aabakken L, Lund RS, Johnson LK, Hertel JK, Kalager M, Løberg M, Bretthauer M (2023)
A pilot study of implementation of endoscopic sleeve gastroplasty (ESG) in Norway
Scand J Gastroenterol, 58 (10), 1180-1184
DOI 10.1080/00365521.2023.2204389, PubMed 37128713

Publications 2022

Ainechi D, Misawa M, Barua I, Larsen SLV, Paulsen V, Garborg KK, Aabakken L, Tønnesen CJ, Løberg M, Kalager M, Kudo SE, Hotta K, Ohtsuka K, Saito S, Ikematsu H, Saito Y, Matsuda T, Itoh H, Mori K, Bretthauer M, Mori Y (2022)
Impact of artificial intelligence on colorectal polyp detection for early-career endoscopists: an international comparative study
Scand J Gastroenterol, 57 (10), 1272-1277
DOI 10.1080/00365521.2022.2070436, PubMed 35605150

Baddeley R, Aabakken L, Veitch A, Hayee B (2022)
Green Endoscopy: Counting the Carbon Cost of Our Practice
Gastroenterology, 162 (6), 1556-1560
DOI 10.1053/j.gastro.2022.01.057, PubMed 35183550

Beyna T, Moreels T, Arvanitakis M, Pioche M, Saurin JC, May A, Knabe M, Agnholt JS, Bjerregaard NC, Puustinen L, Schlag C, Aabakken L, Paulsen V, Schneider M, Neurath MF, Rath T, Devière J, Neuhaus H (2022)
Motorized spiral enteroscopy: results of an international multicenter prospective observational clinical study in patients with normal and altered gastrointestinal anatomy
Endoscopy, 54 (12), 1147-1155
DOI 10.1055/a-1831-6215, PubMed 35451040

Castro Tejera V, Öhman L, Aabakken L, Fellström B, Hausken T, Hovde Ø, Hreinsson JP, Lindberg G, Venge P, Simrén M, Törnblom H (2022)
Randomised clinical trial and meta-analysis: mesalazine treatment in irritable bowel syndrome-effects on gastrointestinal symptoms and rectal biomarkers of immune activity
Aliment Pharmacol Ther, 56 (6), 968-979
DOI 10.1111/apt.17182, PubMed 35942522

Dietrich CF, Braden B, Burmeister S, Aabakken L, Arciadacono PG, Bhutani MS, Götzberger M, Healey AJ, Hocke M, Hollerbach S, Ignee A, Jenssen C, Jürgensen C, Larghi A, Moeller K, Napoléon B, Rimbas M, Săftoiu A, Sun S, Bun Teoh AY, Vanella G, Fusaroli P, Carrara S, Will U, Dong Y et al. (2022)
How to perform EUS-guided biliary drainage
Endosc Ultrasound, 11 (5), 342-354
DOI 10.4103/EUS-D-21-00188, PubMed 36255022

Gkolfakis P, Papaefthymiou A, Facciorusso A, Tziatzios G, Ramai D, Dritsas S, Florou T, Papanikolaou IS, Hassan C, Repici A, Triantafyllou K, Aabakken L, Devière J, Beyna T, Arvanitakis M (2022)
Comparison between Enteroscopy-, Laparoscopy- and Endoscopic Ultrasound-Assisted Endoscopic Retrograde Cholangio-Pancreatography in Patients with Surgically Altered Anatomy: A Systematic Review and Meta-Analysis
Life (Basel), 12 (10)
DOI 10.3390/life12101646, PubMed 36295081

Karstensen JG, Ebigbo A, Desalegn H, Afihene M, Anigbo G, Antonelli G, Bhat P, Duduyemi B, Guy C, Ijoma U, Ponchon T, Rahmi G, Aabakken L, Hassan C, European Society of Gastrointestinal Endoscopy and World Endoscopy Organization (2022)
Colorectal polypectomy and endoscopic mucosal resection: European Society of Gastrointestinal Endoscopy Cascade Guideline
Endosc Int Open, 10 (11), E1427-E1433
DOI 10.1055/a-1964-7965, PubMed 36397871

Mikkelsen A, Møinichen UI, Reims HM, Grzyb K, Aabakken L, Mørkrid L, IJsselstijn H, Emblem R (2022)
Clinical Variables as Indicative Factors for Endoscopy in Adolescents with Esophageal Atresia
J Pediatr Surg, 58 (8), 1421-1429
DOI 10.1016/j.jpedsurg.2022.10.003, PubMed 36344284

Skjellerudsveen BM, Omdal R, Hetta AK, Kvaløy JT, Aabakken L, Skoie IM, Grimstad T (2022)
Fatigue: a frequent and biologically based phenomenon in newly diagnosed celiac disease
Sci Rep, 12 (1), 7281
DOI 10.1038/s41598-022-11802-8, PubMed 35508622

Steinsbø Ø, Carlsen A, Aasprong OG, Aabakken L, Tvedt-Gundersen E, Bjørkhaug S, Gjerde R, Normann Karlsen L, Grimstad T (2022)
Histologic healing and factors associated with complete remission following conventional treatment in ulcerative colitis
Therap Adv Gastroenterol, 15, 17562848221140659
DOI 10.1177/17562848221140659, PubMed 36506747

Teoh AYB, Ma MTW, Aabakken L, Seo DW, Reddy DN (2022)
International cross-sectional survey on endoscopic retrograde cholangiopancreatography training by the World Endoscopy Organization
Dig Endosc, 35 (1), 103-110
DOI 10.1111/den.14404, PubMed 35837757

van Megen F, Skodje GI, Lergenmuller S, Zühlke S, Aabakken L, Veierød MB, Henriksen C, Lundin KEA (2022)
A Low FODMAP Diet Reduces Symptoms in Treated Celiac Patients With Ongoing Symptoms-A Randomized Controlled Trial
Clin Gastroenterol Hepatol, 20 (10), 2258-2266.e3
DOI 10.1016/j.cgh.2022.01.011, PubMed 35051648

Waage A, Vinge-Holmquist O, Labori KJ, Paulsen V, Aabakken L, Lenz H, Felix Magnus HC, Tholfsen T, Hauge T (2022)
Tailored surgery in chronic pancreatitis after implementation of a multidisciplinary team assessment; a prospective observational study
HPB (Oxford), 24 (12), 2157-2166
DOI 10.1016/j.hpb.2022.09.007, PubMed 36272955

Aabakken L (2022)
Preemptive clipping for post-ampullectomy bleeding: the jury is still out
Endoscopy, 54 (8), 795-796
DOI 10.1055/a-1762-5625, PubMed 35180796

Aabakken L, Paulsen V (2022)
ESWL pancreatitis: yet another post-procedural pancreatitis to worry about?
Lancet Gastroenterol Hepatol, 7 (3), 199-200
DOI 10.1016/S2468-1253(21)00476-3, PubMed 35085483

Publications 2021

Antonelli G, Karsensten JG, Bhat P, Ijoma U, Osuagwu C, Desalegn H, Abera H, Guy C, Vilmann P, Dinis-Ribeiro M, Ponchon T, Sabbagh LC, Pausawasdi N, Makharia G, Hassan C, Veitch A, Aabakken L, Ebigbo A, Endoscopy and COVID-19 Cascade Working Group, European Society of Gastrointestinal Endoscopy, World Endoscopy Organization and World Gastroenterology Organization (2021)
Resuming endoscopy during COVID-19 pandemic: ESGE, WEO and WGO Joint Cascade Guideline for Resource Limited Settings
Endosc Int Open, 9 (4), E543-E551
DOI 10.1055/a-1400-9135, PubMed 33816775

Antonelli G, Karstensen JG, Bhat P, Ijoma U, Osuagwu C, Desalegn H, Abera H, Guy C, Vilmann P, Dinis-Ribeiro M, Ponchon T, Sabbagh LC, Pausawasdi N, Makharia G, Hassan C, Veitch A, Aabakken L, Ebigbo A, Endoscopy and COVID-19 Cascade Working Group, European Society of Gastrointestinal Endoscopy, World Endoscopy Organization and World Gastroenterology Organization (2021)
Erratum: Resuming endoscopy during COVID-19 pandemic: ESGE, WEO and WGO Joint Cascade Guideline for Resource Limited Settings
Endosc Int Open, 9 (4), C4
DOI 10.1055/a-1480-4036, PubMed 33880396

Bekkelund M, Sangnes DA, Søfteland E, Aabakken L, Biermann M, Steinsvik EK, Hausken T, Dimcevski G, Hatlebakk JG (2021)
Gastroparesis Symptoms Associated with Intestinal Hypomotility: An Explorative Study Using Wireless Motility Capsule
Clin Exp Gastroenterol, 14, 133-144
DOI 10.2147/CEG.S304854, PubMed 33953592

Bhat P, Hassan C, Desalegn H, Aabakken L (2021)
Promotion of gastrointestinal endoscopy in Sub-Saharan Africa: What is needed, and how can ESGE and WEO help?
Endosc Int Open, 9 (7), E1001-E1003
DOI 10.1055/a-1495-5215, PubMed 34222621

Grimstad T, Skjellerudsveen BM, Kvaløy JT, Skoie IM, Carlsen A, Karlsen LN, Aabakken L, Omdal R (2021)
The influence of disease activity on fatigue in patients with ulcerative colitis - a longitudinal study
Scand J Gastroenterol, 57 (3), 290-297
DOI 10.1080/00365521.2021.2007281, PubMed 34846950

Hoff G, Botteri E, Huppertz-Hauss G, Kvamme JM, Holme Ø, Aabakken L, Dahler S, Medhus AW, Blomgren I, Sandvei P, Darre-Næss O, Kjellevold Ø, Seip B (2021)
The effect of train-the-colonoscopy-trainer course on colonoscopy quality indicators
Endoscopy, 53 (12), 1229-1234
DOI 10.1055/a-1352-4583, PubMed 33622001

Kylänpää L, Koskensalo V, Saarela A, Ejstrud P, Udd M, Lindström O, Rainio M, Tenca A, Halttunen J, Qvigstad G, Arnelo U, Fagerström N, Hauge T, Aabakken L, Grönroos J (2021)
Transpancreatic biliary sphincterotomy versus double guidewire in difficult biliary cannulation: a randomized controlled trial
Endoscopy, 53 (10), 1011-1019
DOI 10.1055/a-1327-2025, PubMed 33440441

Leddin D, Omary MB, Veitch A, Metz G, Amrani N, Aabakken L, Ali RAR, Alvares-da-Silva MR, Armstrong D, Boyacioglu S, Chen Y, Elwakil R, Fock KM, Hamid SS, Makharia G, Macrae F, Malekzadeh R, Mulder CJ, Piscoya A, Perman ML, Sadeghi A, Sáenz R, Saurin JC, Butt AS, Wu K et al. (2021)
Uniting the Global Gastroenterology Community to Meet the Challenge of Climate Change and Nonrecyclable Waste
J Clin Gastroenterol, 55 (10), 823-829
DOI 10.1097/MCG.0000000000001619, PubMed 34617932

Leddin D, Omary MB, Veitch A, Metz G, Amrani N, Aabakken L, Raja Ali RA, Alvares-Da-Silva MR, Armstrong D, Boyacioglu S, Chen Y, Elwakil R, Fock KM, Hamid SS, Makharia G, Macrae F, Malekzadeh R, Mulder CJ, Piscoya A, Perman ML, Sadeghi A, Sáenz R, Saurin JC, Butt AS, Wu K et al. (2021)
Uniting the Global Gastroenterology Community to Meet the Challenge of Climate Change and Non-Recyclable Waste
Gastroenterology, 161 (5), 1354-1360
DOI 10.1053/j.gastro.2021.08.001, PubMed 34629165

Leddin D, Omary MB, Veitch A, Metz G, Amrani N, Aabakken L, Raja Ali RA, Alvares-Da-Silva MR, Armstrong D, Boyacioglu S, Chen Y, Elwakil R, Fock KM, Hamid SS, Makharia G, Macrae F, Malekzadeh R, Mulder CJ, Piscoya A, Perman ML, Sadeghi A, Saenz R, Saurin JC, Butt AS, Wu K et al. (2021)
Uniting the global gastroenterology community to meet the challenge of climate change and non-recyclable waste
Gut, 70 (11), 2025-2029
DOI 10.1136/gutjnl-2021-325789, PubMed 34620696

Ponsioen CY, Assis DN, Boberg KM, Bowlus CL, Deneau M, Thorburn D, Aabakken L, Färkkilä M, Petersen B, Rupp C, Hübscher SG, PSC Study Group (2021)
Defining Primary Sclerosing Cholangitis: Results From an International Primary Sclerosing Cholangitis Study Group Consensus Process
Gastroenterology, 161 (6), 1764-1775.e5
DOI 10.1053/j.gastro.2021.07.046, PubMed 34384749

Tønnesen CJ, Hjelmesæth J, Hofsø D, Tonstad S, Hertel JK, Heggen E, Johnson LK, Mathisen TE, Kalager M, Wieszczy P, Medhus AW, Løberg M, Aabakken L, Bretthauer M (2021)
A novel intragastric balloon for treatment of obesity and type 2 diabetes. A two-center pilot trial
Scand J Gastroenterol, 57 (2), 232-238
DOI 10.1080/00365521.2021.1994641, PubMed 34714203

Vedeld HM, Grimsrud MM, Andresen K, Pharo HD, von Seth E, Karlsen TH, Honne H, Paulsen V, Färkkilä MA, Bergquist A, Jeanmougin M, Aabakken L, Boberg KM, Folseraas T, Lind GE (2021)
Early and accurate detection of cholangiocarcinoma in patients with primary sclerosing cholangitis by methylation markers in bile
Hepatology, 75 (1), 59-73
DOI 10.1002/hep.32125, PubMed 34435693

Åvitsland TL, Aabakken L (2021)
Endoscopic retrograde cholangiopancreatography in infants and children
Endosc Int Open, 9 (3), E292-E296
DOI 10.1055/a-1337-2212, PubMed 33655024

Publications 2020

Bartolomé-Casado R, Landsverk OJB, Chauhan SK, Sætre F, Hagen KT, Yaqub S, Øyen O, Horneland R, Aandahl EM, Aabakken L, Bækkevold ES, Jahnsen FL (2020)
CD4⁺ T cells persist for years in the human small intestine and display a T_H1 cytokine profile
Mucosal Immunol, 14 (2), 402-410
DOI 10.1038/s41385-020-0315-5, PubMed 32572129

Beg S, Wronska E, Araujo I, González Suárez B, Ivanova E, Fedorov E, Aabakken L, Seitz U, Rey JF, Saurin JC, Tari R, Card T, Ragunath K (2020)
Use of rapid reading software to reduce capsule endoscopy reading times while maintaining accuracy
Gastrointest Endosc, 91 (6), 1322-1327
DOI 10.1016/j.gie.2020.01.026, PubMed 31981645

Bhat P, Aabakken L (2020)
Role of Endoscopy in Primary Sclerosing Cholangitis
Clin Endosc, 54 (2), 193-201
DOI 10.5946/ce.2020.019-IDEN, PubMed 32380796

Ebigbo A, Karstensen JG, Bhat P, Ijoma U, Osuagwu C, Desalegn H, Oyeleke GK, Gebru RB, Guy C, Antonelli G, Vilmann P, Aabakken L, Hassan C (2020)
Impact of the COVID-19 pandemic on gastrointestinal endoscopy in Africa
Endosc Int Open, 8 (8), E1097-E1101
DOI 10.1055/a-1210-4274, PubMed 32782923

Ismail W, Skulstad H, Aabakken L, Grindheim G, Åvitsland TL, Nordøy I, Issa-Epe AI, Lassen K (2020)
[A man in his thirties with right ventricular heart failure, jaundice and abdominal pain]
Tidsskr Nor Laegeforen, 140 (17)
DOI 10.4045/tidsskr.20.0191, PubMed 33231388

Karstensen JG, Ebigbo A, Bhat P, Dinis-Ribeiro M, Gralnek I, Guy C, Le Moine O, Vilmann P, Antonelli G, Ijoma U, Anigbo G, Afiheni M, Duduyemi B, Desalegn H, De Franchis R, Ponchon T, Hassan C, Aabakken L (2020)
Endoscopic treatment of variceal upper gastrointestinal bleeding: European Society of Gastrointestinal Endoscopy (ESGE) Cascade Guideline
Endosc Int Open, 8 (7), E990-E997
DOI 10.1055/a-1187-1154, PubMed 32626821

Qadir HA, Shin Y, Solhusvik J, Bergsland J, Aabakken L, Balasingham I (2020)
Toward real-time polyp detection using fully CNNs for 2D Gaussian shapes prediction
Med Image Anal, 68, 101897
DOI 10.1016/j.media.2020.101897, PubMed 33260111

Tønnesen CJ, Young J, Glomsaker T, Mala T, Løberg M, Bretthauer M, Refsum E, Aabakken L (2020)
Laparoscopy-assisted versus balloon enteroscopy-assisted ERCP after Roux-en-Y gastric bypass
Endoscopy, 52 (8), 654-661
DOI 10.1055/a-1139-9313, PubMed 32316042

Publications 2019

Bekkelund M, Sangnes DA, Gunnar Hatlebakk J, Aabakken L (2019)
Pathophysiology of idiopathic gastroparesis and implications for therapy
Scand J Gastroenterol, 54 (1), 8-17
DOI 10.1080/00365521.2018.1558280, PubMed 30638082

Carlsen A, Omdal R, Karlsen L, Kvaløy JT, Aabakken L, Steinsbø Ø, Bolstad N, Warren D, Lundin KEA, Grimstad T (2019)
Determination of lower cut-off levels of adalimumab associated with biochemical remission in Crohn's disease
JGH Open, 4 (3), 410-416
DOI 10.1002/jgh3.12266, PubMed 32514446

Dumonceau JM, Kapral C, Aabakken L, Papanikolaou IS, Tringali A, Vanbiervliet G, Beyna T, Dinis-Ribeiro M, Hritz I, Mariani A, Paspatis G, Radaelli F, Lakhtakia S, Veitch AM, van Hooft JE (2019)
ERCP-related adverse events: European Society of Gastrointestinal Endoscopy (ESGE) Guideline
Endoscopy, 52 (2), 127-149
DOI 10.1055/a-1075-4080, PubMed 31863440

Ebigbo A, Karstensen JG, Aabakken L, Dinis-Ribeiro M, Spaander M, Le Moine O, Vilmann P, Ijoma U, Osuagwu C, Anigbo G, Afiheni M, Duduyemi B, Desalegn H, Ponchon T, Hassan C (2019)
Esophageal stenting for benign and malignant disease: European Society of Gastrointestinal Endoscopy (ESGE) Cascade Guideline
Endosc Int Open, 7 (6), E833-E836
DOI 10.1055/a-0898-3523, PubMed 31198848

Garborg K, Aabakken L (2019)
Plastic or metal stents for biliary duct-to-duct anastomotic strictures - Is the jury still out?
Liver Int, 39 (7), 1197-1198
DOI 10.1111/liv.14045, PubMed 31290277

Grimstad T, Kvivik I, Kvaløy JT, Aabakken L, Omdal R (2019)
Heat-shock protein 90<b>α</b> in plasma reflects severity of fatigue in patients with Crohn's disease
Innate Immun, 26 (2), 146-151
DOI 10.1177/1753425919879988, PubMed 31601148

Manes G, Paspatis G, Aabakken L, Anderloni A, Arvanitakis M, Ah-Soune P, Barthet M, Domagk D, Dumonceau JM, Gigot JF, Hritz I, Karamanolis G, Laghi A, Mariani A, Paraskeva K, Pohl J, Ponchon T, Swahn F, Ter Steege RWF, Tringali A, Vezakis A, Williams EJ, van Hooft JE (2019)
Endoscopic management of common bile duct stones: European Society of Gastrointestinal Endoscopy (ESGE) guideline
Endoscopy, 51 (5), 472-491
DOI 10.1055/a-0862-0346, PubMed 30943551

Qadir HA, Balasingham I, Solhusvik J, Bergsland J, Aabakken L, Shin Y (2019)
Improving Automatic Polyp Detection Using CNN by Exploiting Temporal Dependency in Colonoscopy Video
IEEE J Biomed Health Inform, 24 (1), 180-193
DOI 10.1109/JBHI.2019.2907434, PubMed 30946683

Qadir HA, Shin Y, Solhusvik J, Bergsland J, Aabakken L, Balasingham I (2019)
Polyp Detection and Segmentation using Mask R-CNN: Does a Deeper Feature Extractor CNN Always Perform Better?
INT SYM MED INFORM, 181-186

Qadir HA, Solhusvik J, Bergsland J, Aabakken L, Balasingham I (2019)
A Framework With a Fully Convolutional Neural Network for Semi-Automatic Colon Polyp Annotation
IEEE Access, 7, 169537-169547
DOI 10.1109/ACCESS.2019.2954675

Yamamoto H, Aabakken L (2019)
Small-bowel endoscopy
Endoscopy, 51 (5), 399-400
DOI 10.1055/a-0879-1823, PubMed 31022761

Publications 2018

Bjørnland K, Hinna M, Aksnes G, Stensrud KJ, Ertresvåg K, Bjørnstad-Østensen A, Sanengen T, Line PD, Aagenæs I, Aabakken L, Emblem R, Almaas R (2018)
Outcome for biliary atresia patients treated at a low-volume centre
Scand J Gastroenterol, 53 (4), 471-474
DOI 10.1080/00365521.2018.1439097, PubMed 29546790

Carlsen A, Omdal R, Leitao KØ, Isaksen K, Hetta AK, Karlsen LN, Aabakken L, Bolstad N, Warren D, Lundin KEA, Grimstad T (2018)
Subtherapeutic concentrations of infliximab and adalimumab are associated with increased disease activity in Crohn's disease
Therap Adv Gastroenterol, 11, 1756284818759930
DOI 10.1177/1756284818759930, PubMed 29623105

Domagk D, Oppong KW, Aabakken L, Czakó L, Gyökeres T, Manes G, Meier P, Poley JW, Ponchon T, Tringali A, Bellisario C, Minozzi S, Senore C, Bennett C, Bretthauer M, Hassan C, Kaminski MF, Dinis-Ribeiro M, Rees CJ, Spada C, Valori R, Bisschops R, Rutter MD (2018)
Performance measures for ERCP and endoscopic ultrasound: a European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative
Endoscopy, 50 (11), 1116-1127
DOI 10.1055/a-0749-8767, PubMed 30340220

Domagk D, Oppong KW, Aabakken L, Czakó L, Gyökeres T, Manes G, Meier P, Poley JW, Ponchon T, Tringali A, Bellisario C, Minozzi S, Senore C, Bennett C, Bretthauer M, Hassan C, Kaminski MF, Dinis-Ribeiro M, Rees CJ, Spada C, Valori R, Bisschops R, Rutter MD (2018)
Performance measures for endoscopic retrograde cholangiopancreatography and endoscopic ultrasound: A European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative
United European Gastroenterol J, 6 (10), 1448-1460
DOI 10.1177/2050640618808157, PubMed 30574315

Eskeland SL, Rueegg CS, Brunborg C, Aabakken L, de Lange T (2018)
Electronic checklists improve referral letters in gastroenterology: a randomized vignette survey
Int J Qual Health Care, 30 (6), 450-456
DOI 10.1093/intqhc/mzy057, PubMed 29635304

Grimstad T, Kvivik I, Kvaløy JT, Aabakken L, Omdal R (2018)
Heat shock protein 90 and inflammatory activity in newly onset Crohn's disease
Scand J Gastroenterol, 53 (12), 1453-1458
DOI 10.1080/00365521.2018.1533582, PubMed 30625276

Hassan C, Aabakken L, Ebigbo A, Karstensen JG, Guy C, Dinis-Ribeiro M, Le Moine O, Vilmann P, Ponchon T (2018)
Partnership with African Countries: European Society of Gastrointestinal Endoscopy (ESGE) - Position Statement
Endosc Int Open, 6 (10), E1247-E1255
DOI 10.1055/a-0677-2026, PubMed 30302382

Holme Ø, Pedersen IB, Medhus AW, Aabakken L, Glomsaker T, Kvamme JM, Løberg M, Bretthauer M, Seip B, Kjellevold Ø, Jørgensen A, Furholm S, Hoff G, de Lange T (2018)
Endoscopy assistants influence the quality of colonoscopy
Endoscopy, 50 (9), 871-877
DOI 10.1055/s-0044-101706, PubMed 29444529

Holme Ø, Aabakken L (2018)
Making Colonoscopy Smarter With Standardized Computer-Aided Diagnosis
Ann Intern Med, 169 (6), 409-410
DOI 10.7326/M18-1901, PubMed 30105378

Karstensen JG, Ebigbo A, Aabakken L, Dinis-Ribeiro M, Gralnek I, Le Moine O, Vilmann P, Ijoma U, Anigbo G, Afihene M, Duduyemi B, Ponchon T, Hassan C (2018)
Nonvariceal upper gastrointestinal hemorrhage: European Society of Gastrointestinal Endoscopy (ESGE) Cascade Guideline
Endosc Int Open, 6 (10), E1256-E1263
DOI 10.1055/a-0677-2084, PubMed 30302383

Nordheim E, Horneland R, Aandahl EM, Grzyb K, Aabakken L, Paulsen V, Midtvedt K, Hartmann A, Jenssen T (2018)
Pancreas transplant rejection episodes are not revealed by biopsies of the donor duodenum in a prospective study with paired biopsies
Am J Transplant, 18 (5), 1256-1261
DOI 10.1111/ajt.14658, PubMed 29316221

Ponsioen CY, Arnelo U, Bergquist A, Rauws EA, Paulsen V, Cantú P, Parzanese I, De Vries EM, van Munster KN, Said K, Chazouillères O, Desaint B, Kemgang A, Färkkilä M, Van der Merwe S, Van Steenbergen W, Marschall HU, Stotzer PO, Thorburn D, Pereira SP, Aabakken L (2018)
No Superiority of Stents vs Balloon Dilatation for Dominant Strictures in Patients With Primary Sclerosing Cholangitis
Gastroenterology, 155 (3), 752-759.e5
DOI 10.1053/j.gastro.2018.05.034, PubMed 29803836

Shin Y, Qadir HA, Aabakken L, Bergsland J, Balasingham I (2018)
Automatic Colon Polyp Detection Using Region Based Deep CNN and Post Learning Approaches
IEEE Access, 6, 40950-40962
DOI 10.1109/ACCESS.2018.2856402

Tringali A, Hassan C, Rota M, Rossi M, Mutignani M, Aabakken L (2018)
Covered vs. uncovered self-expandable metal stents for malignant distal biliary strictures: a systematic review and meta-analysis
Endoscopy, 50 (6), 631-641
DOI 10.1055/s-0043-125062, PubMed 29342491

Tringali A, Hassan C, Rota M, Rossi M, Mutignani M, Aabakken L (2018)
Correction: Covered vs. uncovered self-expandable metal stents for malignant distal biliary strictures: a systematic review and meta-analysis
Endoscopy, 50 (6), C5
DOI 10.1055/s-0044-102160, PubMed 29415285

Aabakken L, Haber G (2018)
How I perform sphincterotomy
Endoscopy, 50 (8), 818-819
DOI 10.1055/a-0631-2213, PubMed 29895071

Aabakken L, Haber G (2018)
How I perform sphincterotomy
Gastrointest Endosc, 88 (2), 207-208
DOI 10.1016/j.gie.2018.05.011, PubMed 29907376

Publications 2017

Bujko A, Atlasy N, Landsverk OJB, Richter L, Yaqub S, Horneland R, Øyen O, Aandahl EM, Aabakken L, Stunnenberg HG, Bækkevold ES, Jahnsen FL (2017)
Transcriptional and functional profiling defines human small intestinal macrophage subsets
J Exp Med, 215 (2), 441-458
DOI 10.1084/jem.20170057, PubMed 29273642

Eskeland SL, Brunborg C, Rueegg CS, Aabakken L, de Lange T (2017)
Assessment of the effect of an Interactive Dynamic Referral Interface (IDRI) on the quality of referral letters from general practitioners to gastroenterologists: a randomised cross-over vignette trial
BMJ Open, 7 (6), e014636
DOI 10.1136/bmjopen-2016-014636, PubMed 28667208

Hoff G, de Lange T, Bretthauer M, Buset M, Dahler S, Halvorsen FA, Halwe JM, Heibert M, Høie O, Kjellevold Ø, Moritz V, Sandvei P, Seip B, Aabakken L, Holme Ø (2017)
Patient-reported adverse events after colonoscopy in Norway
Endoscopy, 49 (8), 745-753
DOI 10.1055/s-0043-105265, PubMed 28445903

Nymo LS, Aabakken L, Lassen K (2017)
Priority and prejudice: does low socioeconomic status bias waiting time for endoscopy? A blinded, randomized survey
Scand J Gastroenterol, 53 (5), 621-625
DOI 10.1080/00365521.2017.1402207, PubMed 29141477

Thomson M, Tringali A, Dumonceau JM, Tavares M, Tabbers MM, Furlano R, Spaander M, Hassan C, Tzvinikos C, Ijsselstijn H, Viala J, Dall'Oglio L, Benninga M, Orel R, Vandenplas Y, Keil R, Romano C, Brownstone E, Hlava Š, Gerner P, Dolak W, Landi R, Huber WD, Everett S, Vecsei A et al. (2017)
Paediatric Gastrointestinal Endoscopy: European Society for Paediatric Gastroenterology Hepatology and Nutrition and European Society of Gastrointestinal Endoscopy Guidelines
J Pediatr Gastroenterol Nutr, 64 (1), 133-153
DOI 10.1097/MPG.0000000000001408, PubMed 27622898

Aabakken L, Karlsen TH, Albert J, Arvanitakis M, Chazouilleres O, Dumonceau JM, Färkkilä M, Fickert P, Hirschfield GM, Laghi A, Marzioni M, Fernandez M, Pereira SP, Pohl J, Poley JW, Ponsioen CY, Schramm C, Swahn F, Tringali A, Hassan C (2017)
Role of endoscopy in primary sclerosing cholangitis: European Society of Gastrointestinal Endoscopy (ESGE) and European Association for the Study of the Liver (EASL) Clinical Guideline
Endoscopy, 49 (6), 588-608
DOI 10.1055/s-0043-107029, PubMed 28420030

Publications 2016

Adu-Aryee NA, Aabakken L, Dedey F, Nsaful J, Kudzi W (2016)
Comparison of endoscopic based diagnosis with Helicobacter urease test for Helicobacter pylori infection
BMC Res Notes, 9 (1), 421
DOI 10.1186/s13104-016-2237-6, PubMed 27576901

Birk M, Bauerfeind P, Deprez PH, Häfner M, Hartmann D, Hassan C, Hucl T, Lesur G, Aabakken L, Meining A (2016)
Removal of foreign bodies in the upper gastrointestinal tract in adults: European Society of Gastrointestinal Endoscopy (ESGE) Clinical Guideline
Endoscopy, 48 (5), 489-96
DOI 10.1055/s-0042-100456, PubMed 26862844

Bretthauer M, Aabakken L, Dekker E, Kaminski MF, Rösch T, Hultcrantz R, Suchanek S, Jover R, Kuipers EJ, Bisschops R, Spada C, Valori R, Domagk D, Rees C, Rutter MD, ESGE Quality Improvement Committee (2016)
Requirements and standards facilitating quality improvement for reporting systems in gastrointestinal endoscopy: European Society of Gastrointestinal Endoscopy (ESGE) Position Statement
Endoscopy, 48 (3), 291-4
DOI 10.1055/s-0042-100186, PubMed 26841269

Bretthauer M, Aabakken L, Dekker E, Kaminski MF, Rösch T, Hultcrantz R, Suchanek S, Jover R, Kuipers EJ, Bisschops R, Spada C, Valori R, Domagk D, Rees C, Rutter MD, ESGE Quality Improvement Committee (2016)
Reporting systems in gastrointestinal endoscopy: Requirements and standards facilitating quality improvement: European Society of Gastrointestinal Endoscopy position statement
United European Gastroenterol J, 4 (2), 172-6
DOI 10.1177/2050640616629079, PubMed 27087943

Eskeland SL, Brunborg C, Seip B, Wiencke K, Hovde Ø, Owen T, Skogestad E, Huppertz-Hauss G, Halvorsen FA, Garborg K, Aabakken L, de Lange T (2016)
First quality score for referral letters in gastroenterology-a validation study
BMJ Open, 6 (10), e012835
DOI 10.1136/bmjopen-2016-012835, PubMed 27855107

Grimstad T, Norheim KB, Kvaløy JT, Isaksen K, Leitao K, Carlsen A, Karlsen LN, Aabakken L, Omdal R (2016)
Conventional treatment regimens for ulcerative colitis alleviate fatigue - an observational cohort study
Scand J Gastroenterol, 51 (10), 1213-9
DOI 10.1080/00365521.2016.1195869, PubMed 27310658

Grimstad T, Skoie IM, Doerner J, Isaksen K, Karlsen L, Aabakken L, Omdal R, Putterman C (2016)
TWEAK is not elevated in patients with newly diagnosed inflammatory bowel disease
Scand J Gastroenterol, 52 (4), 420-424
DOI 10.1080/00365521.2016.1273382, PubMed 28040992

Knatten CK, Fjeld JG, Medhus AW, Pripp AH, Fyhn TJ, Aabakken L, Kjosbakken H, Edwin B, Emblem R, Bjørnland K (2016)
Preoperative liquid gastric emptying rate does not predict outcome after fundoplication
J Pediatr Surg, 52 (4), 540-543
DOI 10.1016/j.jpedsurg.2016.09.068, PubMed 28277299

Rees CJ, Ngu WS, Regula J, Bisschops R, Saftoiu A, Dekker E, Gralnek I, Ciocirlan M, Dinis-Ribeiro M, Jover R, Meisner S, Spada C, Hassan C, Valori R, Hucl T, Le Moine O, Domagk D, Kaminski MF, Bretthauer M, Rutter MD, Aabakken L, Ponchon T, Fockens P, Siersema PD (2016)
European Society of Gastrointestinal Endoscopy - Establishing the key unanswered research questions within gastrointestinal endoscopy
Endoscopy, 48 (10), 884-891
DOI 10.1055/s-0042-110398, PubMed 27485483

Rushfeldt C, Pham KD, Aabakken L (2016)
[Endoscopic surgery]
Tidsskr Nor Laegeforen, 136 (9), 827-30
DOI 10.4045/tidsskr.15.0252, PubMed 27221183

Ševo I, Avramović A, Balasingham I, Elle OJ, Bergsland J, Aabakken L (2016)
Edge density based automatic detection of inflammation in colonoscopy videos
Comput Biol Med, 72, 138-50
DOI 10.1016/j.compbiomed.2016.03.017, PubMed 27043856

Testoni PA, Mariani A, Aabakken L, Arvanitakis M, Bories E, Costamagna G, Devière J, Dinis-Ribeiro M, Dumonceau JM, Giovannini M, Gyokeres T, Hafner M, Halttunen J, Hassan C, Lopes L, Papanikolaou IS, Tham TC, Tringali A, van Hooft J, Williams EJ (2016)
Papillary cannulation and sphincterotomy techniques at ERCP: European Society of Gastrointestinal Endoscopy (ESGE) Clinical Guideline
Endoscopy, 48 (7), 657-83
DOI 10.1055/s-0042-108641, PubMed 27299638

Tringali A, Thomson M, Dumonceau JM, Tavares M, Tabbers MM, Furlano R, Spaander M, Hassan C, Tzvinikos C, Ijsselstijn H, Viala J, Dall'Oglio L, Benninga M, Orel R, Vandenplas Y, Keil R, Romano C, Brownstone E, Hlava Š, Gerner P, Dolak W, Landi R, Huber WD, Everett S, Vecsei A et al. (2016)
Pediatric gastrointestinal endoscopy: European Society of Gastrointestinal Endoscopy (ESGE) and European Society for Paediatric Gastroenterology Hepatology and Nutrition (ESPGHAN) Guideline Executive summary
Endoscopy, 49 (1), 83-91
DOI 10.1055/s-0042-111002, PubMed 27617420

Aabakken L (2016)
Endoscope reprocessing - painted into a corner?
Endoscopy, 48 (7), 605-6
DOI 10.1055/s-0042-109060, PubMed 27351525

Aabakken L (2016)
Davidsons's principles and practice of medicine
Tidsskr. Nor. Laegeforen., 136 (1), 53

Publications 2015

Andresen K, Boberg KM, Vedeld HM, Honne H, Jebsen P, Hektoen M, Wadsworth CA, Clausen OP, Lundin KE, Paulsen V, Foss A, Mathisen Ø, Aabakken L, Schrumpf E, Lothe RA, Lind GE (2015)
Four DNA methylation biomarkers in biliary brush samples accurately identify the presence of cholangiocarcinoma
Hepatology, 61 (5), 1651-9
DOI 10.1002/hep.27707, PubMed 25644509

Fyhn TJ, Knatten CK, Edwin B, Schistad O, Aabakken L, Kjosbakken H, Pripp AH, Emblem R, Bjørnland K (2015)
Randomized Controlled Trial of Laparoscopic and Open Nissen Fundoplication in Children
Ann Surg, 261 (6), 1061-7
DOI 10.1097/SLA.0000000000001045, PubMed 26291953

Gralnek IM, Dumonceau JM, Kuipers EJ, Lanas A, Sanders DS, Kurien M, Rotondano G, Hucl T, Dinis-Ribeiro M, Marmo R, Racz I, Arezzo A, Hoffmann RT, Lesur G, de Franchis R, Aabakken L, Veitch A, Radaelli F, Salgueiro P, Cardoso R, Maia L, Zullo A, Cipolletta L, Hassan C (2015)
Diagnosis and management of nonvariceal upper gastrointestinal hemorrhage: European Society of Gastrointestinal Endoscopy (ESGE) Guideline
Endoscopy, 47 (10), a1-46
DOI 10.1055/s-0034-1393172, PubMed 26417980

Grimstad T, Norheim KB, Isaksen K, Leitao K, Hetta AK, Carlsen A, Karlsen LN, Skoie IM, Gøransson L, Harboe E, Aabakken L, Omdal R (2015)
Fatigue in Newly Diagnosed Inflammatory Bowel Disease
J Crohns Colitis, 9 (9), 725-30
DOI 10.1093/ecco-jcc/jjv091, PubMed 25994356

Hauge T, Hauge PW, Warloe T, Drolsum A, Johansen C, Viktil E, Aabakken L, Buanes T, Konopski Z (2015)
Randomised controlled trial of temoporfin photodynamic therapy plus chemotherapy in nonresectable biliary carcinoma--PCS Nordic study
Photodiagnosis Photodyn Ther, 13, 330-333
DOI 10.1016/j.pdpdt.2015.09.004, PubMed 26415549

Isaksen K, Aabakken L, Grimstad T, Karlsen L, Sandvei PK, Dalgard O (2015)
Hepatitis C treatment at three Norwegian hospitals 2000-2011
Tidsskr Nor Laegeforen, 135 (22), 2052-8
DOI 10.4045/tidsskr.14.1478, PubMed 26627293

Knatten CK, Kvello M, Fyhn TJ, Edwin B, Schistad O, Aabakken L, Pripp AH, Kjosbakken H, Emblem R, Bjørnland K (2015)
Nissen fundoplication in children with and without neurological impairment: A prospective cohort study
J Pediatr Surg, 51 (7), 1115-21
DOI 10.1016/j.jpedsurg.2015.12.007, PubMed 26787273

Kvello M, Åvitsland TL, Knatten CK, Pripp AH, Aabakken L, Emblem R, Bjørnland K (2015)
Trends in the use of gastrostomies at a tertiary paediatric referral centre
Scand J Gastroenterol, 51 (5), 625-32
DOI 10.3109/00365521.2015.1123288, PubMed 26679498

Rushfeldt C, Aabakken L (2015)
Implementation of Endoscopic Submucosal Dissection for Gastric Lesions in Norway
Scand J Surg, 105 (2), 90-6
DOI 10.1177/1457496915596345, PubMed 26250354

Rutter MD, Senore C, Bisschops R, Domagk D, Valori R, Kaminski MF, Spada C, Bretthauer M, Bennett C, Bellisario C, Minozzi S, Hassan C, Rees C, Dinis-Ribeiro M, Hucl T, Ponchon T, Aabakken L, Fockens P (2015)
The European Society of Gastrointestinal Endoscopy Quality Improvement Initiative: developing performance measures
Endoscopy, 48 (1), 81-9
DOI 10.1055/s-0035-1569580, PubMed 26662057

Rutter MD, Senore C, Bisschops R, Domagk D, Valori R, Kaminski MF, Spada C, Bretthauer M, Bennett C, Bellisario C, Minozzi S, Hassan C, Rees C, Dinis-Ribeiro M, Hucl T, Ponchon T, Aabakken L, Fockens P (2015)
The European Society of Gastrointestinal Endoscopy Quality Improvement Initiative: developing performance measures
United European Gastroenterol J, 4 (1), 30-41
DOI 10.1177/2050640615624631, PubMed 26966520

Aabakken L (2015)
Scandinavian Journal of Gastroenterology - the editors-in-chief
Scand J Gastroenterol, 50 (6), 630-5
DOI 10.3109/00365521.2015.1028995, PubMed 25803744

Publications 2014

Boyar Cetinkaya R, Vatn M, Aabakken L, Bergestuen DS, Thiis-Evensen E (2014)
Survival and prognostic factors in well-differentiated pancreatic neuroendocrine tumors
Scand J Gastroenterol, 49 (6), 734-41
DOI 10.3109/00365521.2014.903432, PubMed 24679166

Dinis-Ribeiro M, Hassan C, Meining A, Aabakken L, Fockens P, European Society of Gastrointestinal Endoscopy (2014)
Live endoscopy events (LEEs): European Society of Gastrointestinal Endoscopy Position Statement - Update 2014
Endoscopy, 47 (1), 80-6
DOI 10.1055/s-0034-1390705, PubMed 25314327

Halttunen J, Meisner S, Aabakken L, Arnelo U, Grönroos J, Hauge T, Kleveland PM, Nordblad Schmidt P, Saarela A, Swahn F, Toth E, Mustonen H, Löhr JM (2014)
Difficult cannulation as defined by a prospective study of the Scandinavian Association for Digestive Endoscopy (SADE) in 907 ERCPs
Scand J Gastroenterol, 49 (6), 752-8
DOI 10.3109/00365521.2014.894120, PubMed 24628493

Horneland R, Paulsen V, Lindahl JP, Grzyb K, Eide TJ, Lundin K, Aabakken L, Jenssen T, Aandahl EM, Foss A, Øyen O (2014)
Pancreas transplantation with enteroanastomosis to native duodenum poses technical challenges--but offers improved endoscopic access for scheduled biopsies and therapeutic interventions
Am J Transplant, 15 (1), 242-50
DOI 10.1111/ajt.12953, PubMed 25394773

Leitao K, Grimstad T, Bretthauer M, Holme Ø, Paulsen V, Karlsen L, Isaksen K, Cvancarova M, Aabakken L (2014)
Polyethylene glycol vs sodium picosulfate/magnesium citrate for colonoscopy preparation
Endosc Int Open, 2 (4), E230-4
DOI 10.1055/s-0034-1377520, PubMed 26135098

Lohr JM, Aabakken L, Arnelo U, Gronroos J, Halttunen J, Hauge T, Jonas E, Kleveland PM, Schmidt PN, Swahn F, Saarela A, Toth E, Meisner S (2014)
How to cannulate? A survey of the Scandinavian Association for Digestive Endoscopy (SADE) in 141 endoscopists (vol 47, pg 861, 2012)
Scand. J. Gastroenterol., 49 (10), 1272
DOI 10.3109/00365521.2014.937117

Aabakken L (2014)
Quality reporting - finally achievable?
Endoscopy, 46 (3), 188-9
DOI 10.1055/s-0034-1365021, PubMed 24573729

Aabakken L, Barkun AN, Cotton PB, Fedorov E, Fujino MA, Ivanova E, Kudo SE, Kuznetzov K, de Lange T, Matsuda K, Moine O, Rembacken B, Rey JF, Romagnuolo J, Rösch T, Sawhney M, Yao K, Waye JD (2014)
Standardized endoscopic reporting
J Gastroenterol Hepatol, 29 (2), 234-40
DOI 10.1111/jgh.12489, PubMed 24329727

Publications 2013

Bjøro K, Aabakken L, Waldum HL (2013)
Cinical gastroenterology
Scand J Gastroenterol, 48 (1), 3
DOI 10.3109/00365521.2013.754638, PubMed 23244450

Glomsaker TB, Hoff G, Kvaløy JT, Søreide K, Aabakken L, Søreide JA, Norwegian Gastronet ERCP Group (2013)
Patient-reported outcome measures after endoscopic retrograde cholangiopancreatography: a prospective, multicentre study
Scand J Gastroenterol, 48 (7), 868-76
DOI 10.3109/00365521.2013.794470, PubMed 23721162

Holme Ø, Moritz V, Bretthauer M, Seip B, Glomsaker T, de Lange T, Aabakken L, Stallemo A, Høie O, Dahler S, Sandvei PK, Stray N, Ystrøm CM, Hoff G (2013)
[Pain in connection with colonoscopy in Norway]
Tidsskr Nor Laegeforen, 133 (10), 1074-8
DOI 10.4045/tidsskr.12.1467, PubMed 23712171

Wasmuth HH, Tranø G, Myrvold HE, Aabakken L, Bakka A (2013)
Adenoma formation and malignancy after restorative proctocolectomy with or without mucosectomy in patients with familial adenomatous polyposis
Dis Colon Rectum, 56 (3), 288-94
DOI 10.1097/DCR.0b013e31827c970f, PubMed 23392141

Aabakken L, Waldum HL (2013)
Introducing a new executive editor, Professor Einar S.Bjørnsson
Scand J Gastroenterol, 48 (10), 1107
DOI 10.3109/00365521.2013.832940, PubMed 23992094

Publications 2012

European Colorectal Cancer Screening Guidelines Working Group, von Karsa L, Patnick J, Segnan N, Atkin W, Halloran S, Lansdorp-Vogelaar I, Malila N, Minozzi S, Moss S, Quirke P, Steele RJ, Vieth M, Aabakken L, Altenhofen L, Ancelle-Park R, Antoljak N, Anttila A, Armaroli P, Arrossi S, Austoker J, Banzi R, Bellisario C, Blom J, Brenner H et al. (2012)
European guidelines for quality assurance in colorectal cancer screening and diagnosis: overview and introduction to the full supplement publication
Endoscopy, 45 (1), 51-9
DOI 10.1055/s-0032-1325997, PubMed 23212726

Glomsaker T, Hoff G, Kvaløy JT, Søreide K, Aabakken L, Søreide JA, Norwegian Gastronet ERCP Group (2012)
Patterns and predictive factors of complications after endoscopic retrograde cholangiopancreatography
Br J Surg, 100 (3), 373-80
DOI 10.1002/bjs.8992, PubMed 23225493

Hoff G, Moritz V, Bretthauer M, Aabakken L, Berset IP, Glomsaker T, Høie O, de Lange T (2012)
Incontinence after colonoscopy--an unrecognized and preventable problem. A cross-sectional study from the Gastronet quality assurance program
Endoscopy, 44 (4), 349-53
DOI 10.1055/s-0031-1291657, PubMed 22392101

Lanas A, Aabakken L, Fonseca J, Mungan Z, Papatheodoridis G, Piessevaux H, Rotondano G, Nuevo J, Tafalla M (2012)
Variability in the management of nonvariceal upper gastrointestinal bleeding in Europe: an observational study
Adv Ther, 29 (12), 1026-36
DOI 10.1007/s12325-012-0069-x, PubMed 23225523

Löhr JM, Aabakken L, Arnelo U, Grönroos J, Halttunen J, Hauge T, Jonas E, Kleveland PM, Nordblad Schmidt P, Swahn F, Saarela A, Toth E, Meisner S (2012)
How to cannulate? A survey of the Scandinavian Association for Digestive Endoscopy (SADE) in 141 endoscopists
Scand J Gastroenterol, 47 (7), 861-9
DOI 10.3109/00365521.2012.672588, PubMed 22512404

Aabakken L (2012)
Endoscopic retrograde cholangiopancreatography
Endoscopy, 44 (9), 855-9
DOI 10.1055/s-0032-1310056, PubMed 22855070

Aabakken L (2012)
Endoscopic retrograde cholangiopancreatography
Gastrointest Endosc, 76 (3), 516-20
DOI 10.1016/j.gie.2012.06.029, PubMed 22898410

Publications 2011

Domagk D, Mensink P, Aktas H, Lenz P, Meister T, Luegering A, Ullerich H, Aabakken L, Heinecke A, Domschke W, Kuipers E, Bretthauer M (2011)
Single- vs. double-balloon enteroscopy in small-bowel diagnostics: a randomized multicenter trial
Endoscopy, 43 (6), 472-6
DOI 10.1055/s-0030-1256247, PubMed 21384320

Glomsaker T, Søreide K, Hoff G, Aabakken L, Søreide JA, Norwegian Gastronet ERCP group (2011)
Contemporary use of endoscopic retrograde cholangiopancreatography (ERCP): a Norwegian prospective, multicenter study
Scand J Gastroenterol, 46 (9), 1144-51
DOI 10.3109/00365521.2011.594085, PubMed 21692712

Hoff G, Volker M, Bretthauer M, Aabakken L, Høie O, Delange T, Berset I, Kjellevold Ø, Glomsaker T, Huppertz-Hauss G, Lange O, Sandvei P (2011)
Gastronet survey on the use of one- or two-person technique for colonoscopy insertion
BMC Gastroenterol, 11, 73
DOI 10.1186/1471-230X-11-73, PubMed 21672243

Holm TE, Rosseland AR, Lundin KA, Røsok BI, Aabakken L, Bock G, Lauzikas G, Thorne H (2011)
Endoscopic stent treatment of a duodenal ulcer perforation
Endoscopy, 43 Suppl 2 UCTN, E60
DOI 10.1055/s-0030-1256079, PubMed 21287454

Holme Ø, Tjora E, Aabakken L (2011)
[Eosinophilic oesophagitis]
Tidsskr Nor Laegeforen, 131 (24), 2470-4
DOI 10.4045/tidsskr.11.0417, PubMed 22170132

Lanas A, Aabakken L, Fonseca J, Mungan ZA, Papatheodoridis GV, Piessevaux H, Cipolletta L, Nuevo J, Tafalla M (2011)
Clinical predictors of poor outcomes among patients with nonvariceal upper gastrointestinal bleeding in Europe
Aliment Pharmacol Ther, 33 (11), 1225-33
DOI 10.1111/j.1365-2036.2011.04651.x, PubMed 21480935

Løberg M, Furholm S, Hoff I, Aabakken L, Hoff G, Bretthauer M (2011)
Nitrous oxide for analgesia in colonoscopy without sedation
Gastrointest Endosc, 74 (6), 1347-53
DOI 10.1016/j.gie.2011.07.071, PubMed 22136779

Rey JF, Lambert R, Aabakken L, Dekker E, East JE, Kaltenbach T, Kato M, Sharma P, Tanaka S (2011)
Proceedings of a preliminary workshop at Gastro 2009--narrow banding imaging in digestive endoscopy: clinical outcome of classification (Omed-Jges Educational Meeting held on 22 November, 2009)
Dig Endosc, 23 (3), 251-66
DOI 10.1111/j.1443-1661.2010.01083.x, PubMed 21699571

Aabakken L, Enochsson L (2011)
Mechanics of quality assurance - now and in the future
Best Pract Res Clin Gastroenterol, 25 (3), 419-25
DOI 10.1016/j.bpg.2011.05.009, PubMed 21764009

Publications 2010

Almendingen K, Høstmark AT, Larsen LN, Fausa O, Bratlie J, Aabakken L (2010)
Relationship between Fecal Content of Fatty Acids and Cyclooxygenase mRNA Expression and Fatty Acid Composition in Duodenal Biopsies, Serum Lipoproteins, and Dietary Fat in Colectomized Familial Adenomatous Polyposis Patients
J Nutr Metab, 2010, 862569
DOI 10.1155/2010/862569, PubMed 21052495

Almendingen K, Larsen LN, Fausa O, Bratlie J, Høstmark AT, Aabakken L (2010)
Selective COX-2 inhibition affects fatty acids, but not COX mRNA expression in patients with FAP
Fam Cancer, 9 (4), 571-80
DOI 10.1007/s10689-010-9365-2, PubMed 20593240

Bendz B, Aabakken L (2010)
Turnuslegeboka 2010
Legeforl., Oslo (Ny rev. utg.), 458 s.
BIBSYS 102213836, ISBN 978-82-92934-05-0

Cotton PB, Eisen GM, Aabakken L, Baron TH, Hutter MM, Jacobson BC, Mergener K, Nemcek A, Petersen BT, Petrini JL, Pike IM, Rabeneck L, Romagnuolo J, Vargo JJ (2010)
A lexicon for endoscopic adverse events: report of an ASGE workshop
Gastrointest Endosc, 71 (3), 446-54
DOI 10.1016/j.gie.2009.10.027, PubMed 20189503

Glomsaker T, Søreide K, Aabakken L, Søreide JA (2010)
A national audit of temporal trends in endoscopic retrograde cholangiopancreatography in Norway
Scand J Gastroenterol, 46 (1), 116-21
DOI 10.3109/00365521.2010.513063, PubMed 20735155

Ponsioen CY, Reitsma JB, Boberg KM, Aabakken L, Rauws EA, Schrumpf E (2010)
Validation of a cholangiographic prognostic model in primary sclerosing cholangitis
Endoscopy, 42 (9), 742-7
DOI 10.1055/s-0030-1255527, PubMed 20623444

Aabakken L (2010)
This month in Scandinavian Journal of Gastroenterology
Scand. J. Gastroenterol., 45 (9), 1011-1012
DOI 10.3109/00365521.2010.511048

Publications 2009

Almendingen K, Fausa O, Høstmark AT, Bratlie J, Mørkerid L, Aabakken L, Vatn MH (2009)
Serum nutrients and habitual dietary intake in colectomized FAP patients in Norway
Eur J Nutr, 48 (3), 129-36
DOI 10.1007/s00394-008-0772-1, PubMed 19142564

Andresen PA, Heimdal K, Aaberg K, Eklo K, Ariansen S, Silye A, Fausa O, Aabakken L, Aretz S, Eide TJ, Gedde-Dahl T (2009)
APC mutation spectrum of Norwegian familial adenomatous polyposis families: high ratio of novel mutations
J Cancer Res Clin Oncol, 135 (10), 1463-70
DOI 10.1007/s00432-009-0594-4, PubMed 19444466

Bergestuen DS, Aabakken L, Holm K, Vatn M, Thiis-Evensen E (2009)
Small intestinal neuroendocrine tumors: prognostic factors and survival
Scand J Gastroenterol, 44 (9), 1084-91
DOI 10.1080/00365520903082432, PubMed 19572232

Björnsson E, Aabakken L, Olafsson S, Bendtsen F (2009)
Are specific guidelines necessary for treatment of esophageal varices in the Nordic countries?
Scand J Gastroenterol, 44 (9), 1037-47
DOI 10.1080/00365520903075170, PubMed 19565407

Bourreille A, Ignjatovic A, Aabakken L, Loftus EV, Eliakim R, Pennazio M, Bouhnik Y, Seidman E, Keuchel M, Albert JG, Ardizzone S, Bar-Meir S, Bisschops R, Despott EJ, Fortun PF, Heuschkel R, Kammermeier J, Leighton JA, Mantzaris GJ, Moussata D, Lo S, Paulsen V, Panés J, Radford-Smith G, Reinisch W et al. (2009)
Role of small-bowel endoscopy in the management of patients with inflammatory bowel disease: an international OMED-ECCO consensus
Endoscopy, 41 (7), 618-37
DOI 10.1055/s-0029-1214790, PubMed 19588292

Kalaitzakis E, Panos M, Sadik R, Aabakken L, Koumi A, Meenan J (2009)
Clinicians' attitudes towards endoscopic ultrasound: a survey of four European countries
Scand J Gastroenterol, 44 (1), 100-7
DOI 10.1080/00365520802495545, PubMed 18985538

Madsen NE, Nielsen IM, Aabakken L, Westgaard A (2009)
[Net-based guideline for anamnesis taking and clinical examination]
Tidsskr Nor Laegeforen, 129 (16), 1655-7
DOI 10.4045/tidsskr.08.0217, PubMed 19721485

Rey JF, Repici A, Kuznetsov K, Boyko V, Aabakken L (2009)
Optimal preparation for small bowel examinations with video capsule endoscopy
Dig Liver Dis, 41 (7), 486-93
DOI 10.1016/j.dld.2008.09.016, PubMed 19158002

Aabakken L (2009)
Endoscopic diagnosis and treatment of tumors
Endoscopy, 41 (10), 861-5
DOI 10.1055/s-0029-1215090, PubMed 19798611

Aabakken L, Rembacken B, LeMoine O, Kuznetsov K, Rey JF, Rösch T, Eisen G, Cotton P, Fujino M (2009)
Minimal standard terminology for gastrointestinal endoscopy - MST 3.0
Endoscopy, 41 (8), 727-8
DOI 10.1055/s-0029-1214949, PubMed 19670144

Aabakken L, Aagenaes I, Sanengen T, Aasen S, Emblem R, Bjornland K (2009)
Utility of ERCP in neonatal and infant cholestasis
J Laparoendosc Adv Surg Tech A, 19 (3), 431-6
DOI 10.1089/lap.2008.0272, PubMed 19216697

Publications 2008

Aabakken L (2008)
Current endoscopic and pharmacological therapy of peptic ulcer bleeding
Best Pract Res Clin Gastroenterol, 22 (2), 243-59
DOI 10.1016/j.bpg.2007.10.010, PubMed 18346682

Aabakken L (2008)
Endoscopic haemostasis
Best Pract Res Clin Gastroenterol, 22 (5), 899-927
DOI 10.1016/j.bpg.2008.05.002, PubMed 18790438

Publications 2007

Almendingen K, Høstmark AT, Fausa O, Mosdøl A, Aabakken L, Vatn MH (2007)
Familial adenomatous polyposis patients have high levels of arachidonic acid and docosahexaenoic acid and low levels of linoleic acid and alpha-linolenic acid in serum phospholipids
Int J Cancer, 120 (3), 632-7
DOI 10.1002/ijc.22337, PubMed 17096349

Bendz B, Aabakken L (2007)
Turnuslegeboka
Legeforlaget, Oslo (4. utg.), 417 s.
BIBSYS 071016708, ISBN 978-82-993568-7-9

Bretthauer M, Seip B, Aasen S, Kordal M, Hoff G, Aabakken L (2007)
Carbon dioxide insufflation for more comfortable endoscopic retrograde cholangiopancreatography: a randomized, controlled, double-blind trial
Endoscopy, 39 (1), 58-64
DOI 10.1055/s-2006-945036, PubMed 17252462

Domagk D, Bretthauer M, Lenz P, Aabakken L, Ullerich H, Maaser C, Domschke W, Kucharzik T (2007)
Carbon dioxide insufflation improves intubation depth in double-balloon enteroscopy: a randomized, controlled, double-blind trial
Endoscopy, 39 (12), 1064-7
DOI 10.1055/s-2007-966990, PubMed 18072057

Fork FT, Aabakken L (2007)
Capsule enteroscopy and radiology of the small intestine
Eur Radiol, 17 (12), 3103-11
DOI 10.1007/s00330-007-0718-7, PubMed 17876583

Aabakken L (2007)
Endoscopic diagnosis and treatment of gastric tumors
Endoscopy, 39 (11), 974-7
DOI 10.1055/s-2007-966926, PubMed 17926240

Aabakken L, Bretthauer M, Line PD (2007)
Double-balloon enteroscopy for endoscopic retrograde cholangiography in patients with a Roux-en-Y anastomosis
Endoscopy, 39 (12), 1068-71
DOI 10.1055/s-2007-966841, PubMed 18072058

Publications 2006

Almaas H, Cases AL, Devold TG, Holm H, Langsrud T, Aabakken L, Aadnoey T, Vegarud GE (2006)
In vitro digestion of bovine and caprine milk by human gastric and duodenal enzymes
Int. Dairy J., 16 (9), 961-968
DOI 10.1016/j.idairyj.2005.10.029

Berstad AE, Aabakken L, Smith HJ, Aasen S, Boberg KM, Schrumpf E (2006)
Diagnostic accuracy of magnetic resonance and endoscopic retrograde cholangiography in primary sclerosing cholangitis
Clin Gastroenterol Hepatol, 4 (4), 514-20
DOI 10.1016/j.cgh.2005.10.007, PubMed 16616358

Boberg KM, Jebsen P, Clausen OP, Foss A, Aabakken L, Schrumpf E (2006)
Diagnostic benefit of biliary brush cytology in cholangiocarcinoma in primary sclerosing cholangitis
J Hepatol, 45 (4), 568-74
DOI 10.1016/j.jhep.2006.05.010, PubMed 16879890

de Lange T, Svensen AM, Larsen S, Aabakken L (2006)
The functionality and reliability of an Internet interface for assessments of endoscopic still images and video clips: distributed research in gastroenterology
Gastrointest Endosc, 63 (3), 445-52
DOI 10.1016/j.gie.2005.11.053, PubMed 16500394

Ladas SD, Aabakken L, Rey JF, Nowak A, Zakaria S, Adamonis K, Amrani N, Bergman JJ, Boix Valverde J, Boyacioglu S, Cremers I, Crowe J, Deprez P, Díte P, Eisen M, Eliakim R, Fedorov ED, Galkova Z, Gyokeres T, Heuss LT, Husic-Selimovic A, Khediri F, Kuznetsov K, Marek T, Munoz-Navas M et al. (2006)
Use of sedation for routine diagnostic upper gastrointestinal endoscopy: a European Society of Gastrointestinal Endoscopy Survey of National Endoscopy Society Members
Digestion, 74 (2), 69-77
DOI 10.1159/000097466, PubMed 17135728

Reikvam A, Hexeberg S, Kvien TK, Slørdal L, Aabakken L, Engebretsen L, Flatø B, Idsø N, Johnsen V, Kalstad S, Madsen S, Mikkelsen K, Os I, REder J (2006)
[Clinical use of COX inhibitors--a consensus]
Tidsskr Nor Laegeforen, 126 (5), 591-5
PubMed 16505867

Publications 2005

Bretthauer M, Lynge AB, Thiis-Evensen E, Hoff G, Fausa O, Aabakken L (2005)
Carbon dioxide insufflation in colonoscopy: safe and effective in sedated patients
Endoscopy, 37 (8), 706-9
DOI 10.1055/s-2005-870154, PubMed 16032487

de Lange T, Larsen S, Aabakken L (2005)
Image documentation of endoscopic findings in ulcerative colitis: photographs or video clips?
Gastrointest Endosc, 61 (6), 715-20
DOI 10.1016/s0016-5107(05)00337-8, PubMed 15855977

Farup PG, Vandvik PO, Aabakken L (2005)
How useful are the Rome II criteria for identification of upper gastrointestinal disorders in general practice?
Scand J Gastroenterol, 40 (11), 1284-9
DOI 10.1080/00365520510023576, PubMed 16334437

Laake KO, Bjørneklett A, Aamodt G, Aabakken L, Jacobsen M, Bakka A, Vatn MH (2005)
Outcome of four weeks' intervention with probiotics on symptoms and endoscopic appearance after surgical reconstruction with a J-configurated ileal-pouch-anal-anastomosis in ulcerative colitis
Scand J Gastroenterol, 40 (1), 43-51
DOI 10.1080/00365520410009339, PubMed 15841713

Aabakken L (2005)
[From science fiction to clinica routine]
Tidsskr Nor Laegeforen, 125 (2), 147
PubMed 15665883

Aabakken L (2005)
Nonvariceal upper gastrointestinal bleeding
Endoscopy, 37 (3), 195-200
DOI 10.1055/s-2004-826235, PubMed 15731933

Aabakken L (2005)
Endoscopic tumor diagnosis and treatment
Endoscopy, 37 (11), 1079-83
DOI 10.1055/s-2005-870393, PubMed 16281135

Aabakken L (2005)
Colorectal cancer screening - The public/professional interface.
Acta Gastro-Enterol. Belg., 68 (2), 261

Publications 2004

de Lange T, Larsen S, Aabakken L (2004)
Inter-observer agreement in the assessment of endoscopic findings in ulcerative colitis
BMC Gastroenterol, 4, 9
DOI 10.1186/1471-230X-4-9, PubMed 15149550

Laake KO, Line PD, Grzyb K, Aamodt G, Aabakken L, Røset A, Hvinden AB, Bakka A, Eide J, Bjørneklett A, Vatn MH (2004)
Assessment of mucosal inflammation and blood flow in response to four weeks' intervention with probiotics in patients operated with a J-configurated ileal-pouch-anal-anastomosis (IPAA)
Scand J Gastroenterol, 39 (12), 1228-35
DOI 10.1080/00365520410009320, PubMed 15743000

Rikshospitalet, Aabakken L, Bjøro K (2004)
Metodebok for leger, Medisinsk avdeling
Medisinsk avdeling, Rikshospitalet, [Oslo] (Utg. 2), 152 s.
BIBSYS 050477226

Vandvik PO, Kristensen P, Aabakken L, Farup PG (2004)
Abdominal complaints in general practice
Scand J Prim Health Care, 22 (3), 157-62
DOI 10.1080/02813430410006503, PubMed 15370792

Vandvik PO, Aabakken L, Farup PG (2004)
Diagnosing irritable bowel syndrome: poor agreement between general practitioners and the Rome II criteria
Scand J Gastroenterol, 39 (5), 448-53
DOI 10.1080/00365520310008782, PubMed 15180182

Aabakken L (2004)
Introduction - ESGE/UEGF Colorectal Cancer - Public Awareness Campaign the Public/Professional Interface Workshop - Oslo, Norway, June 20-22, 2003
Endoscopy, 36 (4), 348-+
DOI 10.1055/s-2004-814303

Aabakken L (2004)
Non-steroide antiinnflammatoriske [i.e. anti-inflammatoriske] midler og gastrointestinaltraktus
MSD (Norge), [Drammen] (Rev. utg.), 16 s.
BIBSYS 041530500

Publications 2003

Axon AT, Aabakken L, Malfertheiner P, Danielides I, Ladas S, Hochberger J, Williams C, Campbell D, Zakaria MS (2003)
Recommendations of the ESGE workshop on Ethics in Teaching and Learning Endoscopy. First European Symposium on Ethics in Gastroenterology and Digestive Endoscopy, Kos, Greece, June 2003
Endoscopy, 35 (9), 761-4
DOI 10.1055/s-2003-41586, PubMed 12929025

Berstad A, Aabakken L, Bjrtro K (2003)
Editorial Status, 2003
Scand J Gastroenterol, 38 (1), 1
DOI 10.1080/00365521.2003.11800648, PubMed 27897099

Boberg KM, Jebsen P, Clausen OP, Aabakken L, Brekke I, Schrumpf E (2003)
Cholangiocarcinoma in situ in primary sclerosing cholangitis: diagnosis by brush cytology and treatment by liver transplantation
J Hepatol, 39 (3), 453
DOI 10.1016/s0168-8278(03)00326-x, PubMed 12927935

de Lange T, Moum BA, Tholfsen JK, Larsen S, Aabakken L (2003)
Standardization and quality of endoscopy text reports in ulcerative colitis
Endoscopy, 35 (10), 835-40
DOI 10.1055/s-2003-42619, PubMed 14551861

Laake KO, Line PD, Aabakken L, Løtveit T, Bakka A, Eide J, Roseth A, Grzyb K, Bjørneklett A, Vatn MH (2003)
Assessment of mucosal inflammation and circulation in response to probiotics in patients operated with ileal pouch anal anastomosis for ulcerative colitis
Scand J Gastroenterol, 38 (4), 409-14
PubMed 12739713

Laake KO, Line PD, Aabakken L, Løtveit T, Bakka A, Eide J, Røsetti A, Grzyb K, Bjørneklett A, Vatn MH (2003)
Assessment of Mucosal Inflammation and Circulation in Response to Probiotics in Patients Operated with Ileal Pouch Anal Anastomosis for Ulcerative Colitis
Scand J Gastroenterol, 38 (4), 409-414
DOI 10.1080/00365520310000906, PubMed 28240145

Aabakken L (2003)
Endoscopic tumor diagnosis and treatment
Endoscopy, 35 (11), 887-90
DOI 10.1055/s-2003-43482, PubMed 14606011

Aabakken L, Blomhoff JP, Jermstad T, Lynge AB (2003)
Capsule endoscopy in a patient with Zenker's diverticulum
Endoscopy, 35 (9), 799
DOI 10.1055/s-2003-41596, PubMed 12929040

Aabakken L, Scholz T, Østensen AB, Emblem R, Jermstad T (2003)
Capsule endoscopy is feasible in small children
Endoscopy, 35 (9), 798
DOI 10.1055/s-2003-41595, PubMed 12929039

Publications 2002

Coyle WJ, Pineau BC, Tarnasky PR, Knapple WL, Aabakken L, Hoffman BJ, Cunningham JT, Hawes RH, Cotton PB (2002)
Evaluation of unexplained acute and acute recurrent pancreatitis using endoscopic retrograde cholangiopancreatography, sphincter of Oddi manometry and endoscopic ultrasound
Endoscopy, 34 (8), 617-23
DOI 10.1055/s-2002-33245, PubMed 12173081

Waye JD, Aabakken L, Armengol-Miro JR, Llorens P, Williams CB, Zhang QL (2002)
Screening for GI cancer and payment mechanisms
Gastrointest Endosc, 55 (3), 453-4
DOI 10.1067/mge.2002.120319, PubMed 11868033

Publications 2001

Waye JD, Aabakken L, Alvarez S, Archila P, Bornman PC, Hashiba K, Soweid A (2001)
Endoscopy reports, databases, and computers in 2001
Gastrointest Endosc, 53 (7), 838-9
DOI 10.1067/mge.2001.114329, PubMed 11375609

Aabakken L (2001)
Nonvariceal upper gastrointestinal bleeding
Endoscopy, 33 (1), 16-23
DOI 10.1055/s-2001-11189, PubMed 11204983

Publications 2000

Aabakken L, Adamsen S, Kruse A (2000)
Performance of a colonoscopy simulator: experience from a hands-on endoscopy course
Endoscopy, 32 (11), 911-3
DOI 10.1055/s-2000-8092, PubMed 11085483

Publications 1999

Williams DB, Sahai AV, Aabakken L, Penman ID, van Velse A, Webb J, Wilson M, Hoffman BJ, Hawes RH (1999)
Endoscopic ultrasound guided fine needle aspiration biopsy: a large single centre experience
Gut, 44 (5), 720-6
DOI 10.1136/gut.44.5.720, PubMed 10205212

Aabakken L (1999)
Small-bowel side-effects of non-steroidal anti-inflammatory drugs
Eur J Gastroenterol Hepatol, 11 (4), 383-8
DOI 10.1097/00042737-199904000-00004, PubMed 10321753

Aabakken L (1999)
Clinical symptoms, endoscopic findings and histologic features of gastroduodenal non-steroidal anti-inflammatory drugs lesions
Ital J Gastroenterol Hepatol, 31 Suppl 1, S19-22
PubMed 10379465

Aabakken L (1999)
Standardized terminology in endoscopic ultrasound
Eur J Ultrasound, 10 (2-3), 179-83
DOI 10.1016/s0929-8266(99)00052-x, PubMed 10586022

Aabakken L, Osnes M (1999)
Guide wire technique for difficult pharyngeal passage
Endoscopy, 31 (4), S25
PubMed 10376467

Aabakken L, Silvestri GA, Hawes R, Reed CE, Marsi V, Hoffman B (1999)
Cost-efficacy of endoscopic ultrasonography with fine-needle aspiration vs. mediastinotomy in patients with lung cancer and suspected mediastinal adenopathy
Endoscopy, 31 (9), 707-11
DOI 10.1055/s-1999-74, PubMed 10604611

Publications 1998

Sahai AV, Zimmerman M, Aabakken L, Tarnasky PR, Cunningham JT, van Velse A, Hawes RH, Hoffman BJ (1998)
Prospective assessment of the ability of endoscopic ultrasound to diagnose, exclude, or establish the severity of chronic pancreatitis found by endoscopic retrograde cholangiopancreatography
Gastrointest Endosc, 48 (1), 18-25
DOI 10.1016/s0016-5107(98)70123-3, PubMed 9684659

Aabakken L, Chak A (1998)
Internet for endoscopists: surf or drown?
Gastrointest Endosc, 47 (5), 423-5
PubMed 9609444

Aabakken L, Holthe B, Sandstad O, Rosseland A, Osnes M (1998)
Endoscopic pancreaticobiliary procedures in patients with a Billroth II resection: a 10-year follow-up study
Ital J Gastroenterol Hepatol, 30 (3), 301-5
PubMed 9759601

Aabakken L, Lyseggen E, Røttingen JA, Aabakken L (1998)
Metodebok for turnusleger
[Den norske lægeforening], Oslo (3. utg.), 355 s.
BIBSYS 990165167, ISBN 82-91318-06-9

Aabakken L, Schrumpf E, Søreide O (1998)
The Internet--friend or foe to scientific journals?
Scand J Gastroenterol, 33 (3), 223
DOI 10.1080/00365529850170757, PubMed 9548611

Publications 1997

Rosén L, Aabakken L (1997)
Håndbok i krigskirurgi
FSAN, Oslo (2. utg.), 198 s.
BIBSYS 980246164, ISBN 82-992409-4-8

Schrumpf E, Søreide O, Aabakken L (1997)
How to report randomized controlled trials. The CONSORT statement. Consolidated Standards Of Reporting Trials
Scand J Gastroenterol, 32 (12), 1185-6
DOI 10.3109/00365529709028143, PubMed 9438312

Tarnasky PR, Hoffman B, Aabakken L, Knapple WL, Coyle W, Pineau B, Cunningham JT, Cotton PB, Hawes RH (1997)
Sphincter of Oddi dysfunction is associated with chronic pancreatitis
Am J Gastroenterol, 92 (7), 1125-9
PubMed 9219783

Aabakken L, Baasland I, Lygren I, Osnes M (1997)
Development and evaluation of written patient information for endoscopic procedures
Endoscopy, 29 (1), 23-6
DOI 10.1055/s-2007-1004056, PubMed 9083732

Aabakken L, Chittom P, McKay DC, Uflacker R, Wilson FA (1997)
Percutaneous drainage of a mediastinal pancreatic pseudocyst: a paraspinal, extrapleural CT-guided approach
J Vasc Interv Radiol, 8 (2), 283-5
DOI 10.1016/s1051-0443(97)70556-6, PubMed 9083998

Aabakken L, Enger E (1997)
[Cardiopulmonary resuscitation--should we or should we not? A question of law, ethics and quality assurance]
Tidsskr Nor Laegeforen, 117 (29), 4205
PubMed 9441460

Aabakken L, Osnes M, Rosseland AR (1997)
Gastrointestinal endoskopi
SADE, Oslo ([3. utg.]), 218 s.
BIBSYS 971698686, ISBN 82-994298-0-3

Publications 1996

Andersen R, Hosaka J, Halstensen TS, Stordahl A, Tverdal A, Aabakken L, Laerum F (1996)
The X-ray contrast medium iodixanol detects increased colonic permeability equally well as 51Cr-labeled ethylenediaminetetraacetic acid in experimental colitis of rats
Scand J Gastroenterol, 31 (2), 140-6
DOI 10.3109/00365529609031978, PubMed 8658036

Meling TR, Aabakken L, Røseth A, Osnes M (1996)
Faecal calprotectin shedding after short-term treatment with non-steroidal anti-inflammatory drugs
Scand J Gastroenterol, 31 (4), 339-44
DOI 10.3109/00365529609006407, PubMed 8726300

Aabakken L (1996)
Endoscopy databases: the Norwegian experience
Endoscopy, 28 (6), 501-4
DOI 10.1055/s-2007-1005530, PubMed 8886637

Aabakken L, Carlsen E, Bakka A, Nordgård K, Bjerkeset T, Osnes M (1996)
[Administrative handling of gastrointestinal hemorrhage in Norway]
Tidsskr Nor Laegeforen, 116 (14), 1688-91
PubMed 8658437

Aabakken L, Carlsen E, Nordgård K, Bjerkeset T, Osnes M, Bakka A (1996)
[Diagnosis and treatment of gastrointestinal hemorrhage]
Tidsskr Nor Laegeforen, 116 (14), 1683-6
PubMed 8658436

Aabakken L, Osnes M, Frenzel W (1996)
Gastrointestinal tolerability of lornoxicam compared to that of naproxen in healthy male volunteers
Aliment Pharmacol Ther, 10 (2), 151-6
DOI 10.1046/j.1365-2036.1996.719899000.x, PubMed 8730243

Publications 1995

Solberg EE, Aabakken L, Sandstad O, Bach-Gansmo E, Nordby G, Enger E, Stene-Larsen G (1995)
[The medical record--content, interpretation and quality. Study of 100 medical records from a department of internal medicine]
Tidsskr Nor Laegeforen, 115 (4), 488-9
PubMed 7871509

Aabakken L, Osnes M, Rosseland AR, Fork FT, Liedberg G, Matzen P, Kruse A (1995)
Hands-on endoscopy training: an evaluation of the SADE endoscopy course. Scandinavian Association of Digestive Endoscopy
Endoscopy, 27 (1), 66-9
DOI 10.1055/s-2007-1005635, PubMed 7601039

Aabakken L, Sandstad O, Bach-Gansmo E, Nordby G, Solberg EE, Enger E, Stene-Larsen G (1995)
[Time utilization in the preparation of medical records]
Tidsskr Nor Laegeforen, 115 (4), 486-7
PubMed 7871508

Publications 1994

Breckan RK, Aabakken L (1994)
[Use of acetylsalicylic acid and other antiphlogistics in hematemesis/melena]
Tidsskr Nor Laegeforen, 114 (3), 313-6
PubMed 8191427

Aabakken L (1994)
Metodebok for turnuskandidater
L. Aabakken, [Oslo] (2. utg.), 284 s.
BIBSYS 942005325, ISBN 82-992314-4-2

Aabakken L, Enger E, Jacobsen D, Strømme JH (1994)
[Metabolic acidosis--a diagnostic challenge]
Tidsskr Nor Laegeforen, 114 (3), 331-4
PubMed 8191432

Aabakken L, Johansen KS, Rydningen EB, Bredesen JE, Ovrebø S, Jacobsen D (1994)
Osmolal and anion gaps in patients admitted to an emergency medical department
Hum Exp Toxicol, 13 (2), 131-4
DOI 10.1177/096032719401300212, PubMed 7908810

Publications 1993

Jørgensen AP, Aabakken L (1993)
[Handbook for rotation candidates--Norwegian experiences]
Nord Med, 108 (12), 330-1
PubMed 8272398

Aabakken L (1993)
Med en doktor i magen ...: noen praktiske råd til deg som skal disputere ved Instituttgruppen for Oslo kommunale sykehus
L. Aabakken, Oslo (2. utg.), 21 s.
BIBSYS 96171588x, ISBN 82-992314-2-6

Aabakken L, Axelsson CK, Szecsi PB (1993)
Pepsinogen A and C serum levels in relation to acute NSAID-associated mucosal lesions in healthy volunteers
Scand J Gastroenterol, 28 (6), 557-60
DOI 10.3109/00365529309098266, PubMed 8322031

Publications 1992

Bodd E, Aabakken L (1992)
[Antiphlogistics and mucosal damage--a constant problem]
Tidsskr Nor Laegeforen, 112 (4), 550
PubMed 1553717

Oktedalen O, Lunde OC, Opstad PK, Aabakken L, Kvernebo K (1992)
Changes in the gastrointestinal mucosa after long-distance running
Scand J Gastroenterol, 27 (4), 270-4
DOI 10.3109/00365529209000073, PubMed 1589703

Sandstad O, Aabakken L, Enger E (1992)
[Decision to withdraw cardiopulmonary resuscitation at Norwegian hospitals]
Tidsskr Nor Laegeforen, 112 (13), 1690-2
PubMed 1509424

Aabakken L (1992)
NSAID-associated gastrointestinal damage: methodological considerations and a review of the experience with enteric coated naproxen
Eur J Rheumatol Inflamm, 12 (2), 9-20
PubMed 1364941

Aabakken L (1992)
Review article: non-steroidal, anti-inflammatory drugs--the extending scope of gastrointestinal side effects
Aliment Pharmacol Ther, 6 (2), 143-62
DOI 10.1111/j.1365-2036.1992.tb00258.x, PubMed 1600037

Aabakken L, Hofstad B, Westerheim J, Sandvik C, Larsen S, Osnes M (1992)
[Development and use of a database for gastroenterologic endoscopy]
Tidsskr Nor Laegeforen, 112 (11), 1441-5
PubMed 1631816

Aabakken L, Olaussen B, Mowinckel P, Osnes M (1992)
Gastroduodenal lesions associated with two different piroxicam formulations. An endoscopic comparison
Scand J Gastroenterol, 27 (12), 1049-54
DOI 10.3109/00365529209028137, PubMed 1475622

Aabakken L, Osnes M (1992)
[Mucosal lesions associated with antiphlogistics--treatment and prevention]
Tidsskr Nor Laegeforen, 112 (13), 1705-7
PubMed 1509428

Aabakken L, Sandstad O, Enger E (1992)
[Use of the R-concept in a medical department]
Tidsskr Nor Laegeforen, 112 (13), 1693-5
PubMed 1509425

Aabakken L, Ugstad M, Gamst ON, Winther R, Osnes M (1992)
Naproxen-associated gastroduodenal toxicity: enteric coated granules versus plain tablets
Eur J Rheumatol Inflamm, 12 (2), 43-8
PubMed 1364939

Aabakken L, Weberg R, Lygren I, Eidsvoll B, Stray N, Osnes M (1992)
Gastrointestinal bleeding associated with the use of non-steroidal, anti-inflammatory drugs--symptomatology and clinical course
Agents Actions, Spec No, C86-7
PubMed 1442342

Publications 1991

Westerheim J, Aabakken L, Hofstad B, Larsen S, Osnes M (1991)
The SADE system: an endoscopic database manager
Endoscopy, 23 (5), 265-8
DOI 10.1055/s-2007-1010683, PubMed 1743126

Aabakken L (1991)
NSAIDs and the gastrointestinal tract--case closed?
Scand J Gastroenterol, 26 (8), 801-5
DOI 10.3109/00365529109037015, PubMed 1771383

Aabakken L (1991)
Metodebok for turnuskandidater
L. Aabakken, [Oslo], 197 s.
BIBSYS 911259309, ISBN 82-992314-3-4

Aabakken L (1991)
Med en doktor i magen ...: noen praktiske råd til deg som skal disputere ved Instituttgruppen for Oslo kommunale sykehus
Instituttgruppen for OKS, Det medisinske fakultet, Universitetet i Oslo, [Oslo], 20 s.
BIBSYS 961708425, ISBN 82-992314-2-6

Aabakken L, Weberg R, Lygren I, Eidsvoll B, Stray N, Osnes M (1991)
Gastrointestinal bleeding: dyspeptic symptoms and clinical course in relation to use of non-steroidal antiinflammatory drugs
Scand J Rheumatol, 20 (5), 366-9
DOI 10.3109/03009749109096813, PubMed 1947900

Aabakken L, Westerheim J, Hofstad B, Larsen S, Osnes M (1991)
SADE database for endoscopic procedures: aspects of clinical use
Endoscopy, 23 (5), 269-71
DOI 10.1055/s-2007-1010684, PubMed 1743127

Aabakken L, Aabakken B, Ofsti L, Schrøder R, Wilhelmsen T (1991)
[Psychomotor physical therapy--patients' starting point and their evaluation of the therapeutic results]
Tidsskr Nor Laegeforen, 111 (13), 1619-23
PubMed 2063358

Publications 1990

Aabakken L (1990)
Mucosal damage associated with short term use of nonsteroidal, anti-inflammatory drugs
Ullevål sykehus, [Medisinsk avdeling, Seksjon for førdøyelses sykdommer], Oslo, 1 b. (flere pag.)
BIBSYS 910226334, ISBN 82-992314-1-8

Aabakken L (1990)
Enkel førstehjelp
Norges Røde kors, [Oslo], 40 s.
BIBSYS 911259201, ISBN 82-7250-007-8

Aabakken L, Bjørnbeth BA, Weberg R, Viksmoen L, Larsen S, Osnes M (1990)
NSAID-associated gastroduodenal damage: does famotidine protection extend into the mid- and distal duodenum?
Aliment Pharmacol Ther, 4 (3), 295-303
DOI 10.1111/j.1365-2036.1990.tb00474.x, PubMed 2129490

Aabakken L, Larsen S, Osnes M (1990)
Visual analogue scales for endoscopic evaluation of nonsteroidal anti-inflammatory drug-induced mucosal damage in the stomach and duodenum
Scand J Gastroenterol, 25 (5), 443-8
DOI 10.3109/00365529009095513, PubMed 2193376

Aabakken L, Osnes M (1990)
51Cr-ethylenediaminetetraacetic acid absorption test. Effects of naproxen, a non-steroidal, antiinflammatory drug
Scand J Gastroenterol, 25 (9), 917-24
DOI 10.3109/00365529008997613, PubMed 2120769

Aabakken L, Osnes M (1990)
Gastroduodenal lesions induced by naproxen. An endoscopic evaluation of regional differences and natural course
Scand J Gastroenterol, 25 (12), 1215-22
DOI 10.3109/00365529008998556, PubMed 2274742

Publications 1989

Aabakken L (1989)
Cr-ethylenediaminetetraacetic acid absorption test. Methodologic aspects
Scand J Gastroenterol, 24 (3), 351-8
DOI 10.3109/00365528909093059, PubMed 2499921

Aabakken L, Bjørnbeth BA, Hofstad B, Olaussen B, Larsen S, Osnes M (1989)
Comparison of the gastrointestinal side effects of naproxen formulated as plain tablets, enteric-coated tablets, or enteric-coated granules in capsules
Scand J Gastroenterol Suppl, 163, 65-73
DOI 10.3109/00365528909091177, PubMed 2814364

Aabakken L, Dybdahl JH, Eidsaunet W, Haaland A, Larsen S, Osnes M (1989)
Optimal assessment of gastrointestinal side effects induced by non-steroidal anti-inflammatory drugs. Endoscopic lesions, faecal blood loss, and symptoms not necessarily correlated, as observed after naproxen and oxindanac in healthy volunteers
Scand J Gastroenterol, 24 (8), 1007-13
DOI 10.3109/00365528909089248, PubMed 2688064

Aabakken L, Dybdahl JH, Larsen S, Mowinckel P, Osnes M, Quiding H (1989)
A double-blind comparison of gastrointestinal effects of ibuprofen standard and ibuprofen sustained release assessed by means of endoscopy and 51-Cr-labelled erythrocytes
Scand J Rheumatol, 18 (5), 307-13
DOI 10.3109/03009748909095034, PubMed 2688084

Aabakken L, Larsen S, Osnes M (1989)
Sucralfate for prevention of naproxen-induced mucosal lesions in the proximal and distal gastrointestinal tract
Scand J Rheumatol, 18 (6), 361-8
DOI 10.3109/03009748909102097, PubMed 2515593

Aabakken L, Larsen S, Osnes M (1989)
Cimetidine tablets or suspension for the prevention of gastrointestinal mucosal lesions caused by non-steroidal, anti-inflammatory drugs
Scand J Rheumatol, 18 (6), 369-75
DOI 10.3109/03009748909102098, PubMed 2515594

Aabakken L, Osnes M (1989)
Non-steroidal anti-inflammatory drug-induced disease in the distal ileum and large bowel
Scand J Gastroenterol Suppl, 163, 48-55
DOI 10.3109/00365528909091175, PubMed 2683028

Publications 1988

Aabakken L, Osnes M (1988)
Management of NSAID-induced gastrointestinal lesions
Scand J Gastroenterol Suppl, 155, 106-18
DOI 10.3109/00365528809096293, PubMed 2907680

Publications 1986

Osnes M, Rosseland AR, Aabakken L (1986)
Endoscopic retrograde cholangiography and endoscopic papillotomy in patients with a previous Billroth-II resection
Gut, 27 (10), 1193-8
DOI 10.1136/gut.27.10.1193, PubMed 3781333

Aabakken L, Kåresen R, Serck-Hanssen A, Osnes M (1986)
Transpapillary biopsies and brush cytology from the common bile duct
Endoscopy, 18 (2), 49-51
DOI 10.1055/s-2007-1018325, PubMed 3956437

Aabakken L, Osnes M (1986)
Endoscopic choledochoduodenostomy (ECDT) as palliative treatment of malignant periampullary obstructions of the common bile duct: a follow-up study
Gastrointest Endosc, 32 (1), 41-2
DOI 10.1016/s0016-5107(86)71729-x, PubMed 3949133