Publications

Publications from OUS - Section of Morbid Obesity and Bariatric Surgery

72 publications found

Publications 2019

  1. Chahal-Kummen M, Blom-Høgestøl IK, Eribe I, Klungsøyr O, Kristinsson J, Mala T (2019)
    Abdominal pain and symptoms before and after Roux-en-Y gastric bypass
    BJS Open, 3 (3), 317-326
    DOI 10.1002/bjs5.50148, PubMed 31183448
  2. Svanevik M, Risstad H, Hofsø D, Blom-Høgestøl IK, Kristinsson JA, Sandbu R, Småstuen MC, Thorsby PM, Mala T, Hjelmesæth J (2019)
    Bone Turnover Markers After Standard and Distal Roux-en-Y Gastric Bypass: Results from a Randomized Controlled Trial
    Obes Surg (in press)
    DOI 10.1007/s11695-019-03909-1, PubMed 31065919

Publications 2018

  1. Blom-Høgestøl IK, Stubhaug A, Kristinsson JA, Mala T (2018)
    Diagnosis and treatment of chronic abdominal pain 5 years after Roux-en-Y gastric bypass
    Surg Obes Relat Dis, 14 (10), 1544-1551
    DOI 10.1016/j.soard.2018.06.004, PubMed 30449511
  2. Mala T, Johannessen HO, Førland D, Jacobsen TH, Johnson E (2018)
    Laparascopic resection for gastric cancer at Oslo University Hospital, Ullevål 2015–18
    Tidsskr Nor Laegeforen, 138 (18)
    DOI 10.4045/tidsskr.18.0404, PubMed 30421737
  3. Werling M, Fändriks L, Olbers T, Mala T, Kristinsson J, Stenlöf K, Wallenius V, Docherty NG, le Roux CW (2018)
    Biliopancreatic Diversion is associated with greater increases in energy expenditure than Roux-en-Y Gastric Bypass
    PLoS One, 13 (4), e0194538
    DOI 10.1371/journal.pone.0194538, PubMed 29617391

Publications 2017

  1. Bergh I, Kvalem IL, Mala T, Hansen BH, Sniehotta FF (2017)
    Predictors of Physical Activity After Gastric Bypass-a Prospective Study
    Obes Surg, 27 (8), 2050-2057
    DOI 10.1007/s11695-017-2593-x, PubMed 28210966
  2. Hanvold SE, Vinknes KJ, Bastani NE, Turner C, Løken EB, Mala T, Refsum H, Aas AM (2017)
    Plasma amino acids, adiposity, and weight change after gastric bypass surgery: are amino acids associated with weight regain?
    Eur J Nutr, 57 (7), 2629-2637
    DOI 10.1007/s00394-017-1533-9, PubMed 28856439
  3. Høgestøl IK, Chahal-Kummen M, Eribe I, Brunborg C, Stubhaug A, Hewitt S, Kristinsson J, Mala T (2017)
    Chronic Abdominal Pain and Symptoms 5 Years After Gastric Bypass for Morbid Obesity
    Obes Surg, 27 (6), 1438-1445
    DOI 10.1007/s11695-016-2499-z, PubMed 28028658
  4. Kvalem IL, Bergh I, Sogg S, Mala T (2017)
    Psychosocial characteristics associated with symptom perception 1 year after gastric bypass surgery-a prospective study
    Surg Obes Relat Dis, 13 (11), 1908-1913
    DOI 10.1016/j.soard.2017.06.008, PubMed 28760328
  5. Mala T, Kristinsson J (2017)
    Gastrointestinal symptoms after bariatric surgery-more focus needed
    Surg Obes Relat Dis, 13 (7), 1251
    DOI 10.1016/j.soard.2017.03.009, PubMed 28438495
  6. Aasbrenn M, Høgestøl I, Eribe I, Kristinsson J, Lydersen S, Mala T, Farup PG (2017)
    Prevalence and predictors of irritable bowel syndrome in patients with morbid obesity: a cross-sectional study
    BMC Obes, 4, 22
    DOI 10.1186/s40608-017-0159-z, PubMed 28680646

Publications 2016

  1. Morseth MS, Hanvold SE, Rø Ø, Risstad H, Mala T, Benth JŠ, Engström M, Olbers T, Henjum S (2016)
    Self-Reported Eating Disorder Symptoms Before and After Gastric Bypass and Duodenal Switch for Super Obesity--a 5-Year Follow-Up Study
    Obes Surg, 26 (3), 588-94
    DOI 10.1007/s11695-015-1790-8, PubMed 26173850

Publications 2015

  1. Andersen JM, Herning H, Aschim EL, Hjelmesæth J, Mala T, Hanevik HI, Bungum M, Haugen TB, Witczak O (2015)
    Body Mass Index Is Associated with Impaired Semen Characteristics and Reduced Levels of Anti-Müllerian Hormone across a Wide Weight Range
    PLoS One, 10 (6), e0130210
    DOI 10.1371/journal.pone.0130210, PubMed 26067627
  2. Bergh I, Kvalem IL, Risstad H, Cameron LD, Sniehotta FF (2015)
    Predictors of Preoperative Weight Loss in Morbidly Obese Adults Waiting for Bariatric Surgery: A Prospective Cohort Study
    Obes Surg, 25 (9), 1610-7
    DOI 10.1007/s11695-015-1569-y, PubMed 25616397
  3. Bergh I, Lundin Kvalem I, Risstad H, Sniehotta FF (2015)
    Preoperative predictors of adherence to dietary and physical activity recommendations and weight loss one year after surgery
    Surg Obes Relat Dis, 12 (4), 910-918
    DOI 10.1016/j.soard.2015.11.009, PubMed 26965158
  4. Kristinsson J (2015)
    The ASMBS textbook of bariatric surgery, vol 2, Integrated health
    Tidsskr. Nor. Laegeforen., 135 (11), 1058
  5. Kvalem IL, Bergh I, von Soest T, Rosenvinge JH, Johnsen TA, Martinsen EW, Mala T, Kristinsson JA (2015)
    A comparison of behavioral and psychological characteristics of patients opting for surgical and conservative treatment for morbid obesity
    BMC Obes, 3, 6
    DOI 10.1186/s40608-016-0084-6, PubMed 26885374
  6. Mala T (2015)
    The ASMBS textbook of bariatric surgery
    Tidsskr. Nor. Laegeforen., 135 (9), 875
  7. Mala T, Hewitt S, Høgestøl IK, Kjellevold K, Kristinsson JA, Risstad H (2015)
    [Dumping syndrome following gastric surgery]
    Tidsskr Nor Laegeforen, 135 (4), 310
    DOI 10.4045/tidsskr.15.0163, PubMed 25707648
  8. Mala T, Hewitt S, Høgestøl IK, Kjellevold K, Kristinsson JA, Risstad H (2015)
    [Dumping syndrome following gastric surgery]
    Tidsskr Nor Laegeforen, 135 (2), 137-41
    DOI 10.4045/tidsskr.14.0550, PubMed 25625992
  9. Svanevik M, Risstad H, Hofsø D, Schou CF, Solheim B, Søvik TT, Kristinsson J, Hjelmesæth J, Mala T, Sandbu R (2015)
    Perioperative Outcomes of Proximal and Distal Gastric Bypass in Patients with BMI Ranged 50-60 kg/m(2)--A Double-Blind, Randomized Controlled Trial
    Obes Surg, 25 (10), 1788-95
    DOI 10.1007/s11695-015-1621-y, PubMed 25761943
  10. Aaseth E, Fagerland MW, Aas AM, Hewitt S, Risstad H, Kristinsson J, Bøhmer T, Mala T, Aasheim ET (2015)
    Vitamin concentrations 5 years after gastric bypass
    Eur J Clin Nutr, 69 (11), 1249-55
    DOI 10.1038/ejcn.2015.82, PubMed 26081488

Publications 2014

  1. Biörserud C, Olbers T, Søvik TT, Mala T, Elander A, Olsén MF (2014)
    Experience of excess skin after gastric bypass or duodenal switch in patients with super obesity
    Surg Obes Relat Dis, 10 (5), 891-6
    DOI 10.1016/j.soard.2014.01.033, PubMed 24837559
  2. Gulseth HL, Risstad H, Birkeland KI (2014)
    Bariatric surgery versus intensive medical therapy for diabetes
    N Engl J Med, 371 (7), 681
    DOI 10.1056/NEJMc1407393, PubMed 25119618
  3. Mala T, Harsem NK, Røstad S, Mathisen LC, Jacobsen AF (2014)
    Perforation of the Pregnant Uterus during Laparoscopy for Suspected Internal Herniation after Gastric Bypass
    Case Rep Obstet Gynecol, 2014, 720181
    DOI 10.1155/2014/720181, PubMed 25548693

Publications 2013

  1. Aftab H, Risstad H, Søvik TT, Bernklev T, Hewitt S, Kristinsson JA, Mala T (2013)
    Five-year outcome after gastric bypass for morbid obesity in a Norwegian cohort
    Surg Obes Relat Dis, 10 (1), 71-8
    DOI 10.1016/j.soard.2013.05.003, PubMed 24182445
  2. Hewitt S, Søvik TT, Aasheim ET, Kristinsson J, Jahnsen J, Birketvedt GS, Bøhmer T, Eriksen EF, Mala T (2013)
    Secondary hyperparathyroidism, vitamin D sufficiency, and serum calcium 5 years after gastric bypass and duodenal switch
    Obes Surg, 23 (3), 384-90
    DOI 10.1007/s11695-012-0772-3, PubMed 23015268
  3. Hill SA, Aasheim ET (2013)
    [Brain damage in a child after outpatient induction of labour]
    Ugeskr Laeger, 175 (25), 1784-5
    PubMed 23773216
  4. Mala T, Kristinsson J (2013)
    [Acute internal hernia following gastric bypass for morbid obesity]
    Tidsskr Nor Laegeforen, 133 (6), 640-4
    DOI 10.4045/tidsskr.12.1113, PubMed 23552158
  5. Miras AD, Risstad H, Baqai N, Law S, Søvik TT, Mala T, Olbers T, Kristinsson JA, le Roux CW (2013)
    Application of the International Diabetes Federation and American Diabetes Association criteria in the assessment of metabolic control after bariatric surgery
    Diabetes Obes Metab, 16 (1), 86-9
    DOI 10.1111/dom.12177, PubMed 23841525
  6. Aasheim ET, Hill SA (2013)
    [Outpatient induction of Labour--not who or how, but where]
    Ugeskr Laeger, 175 (39), 2286
    PubMed 26495475

Publications 2012

  1. Mala T, Søvik TT, Schou CF, Kristinsson J (2012)
    Blood clot obstruction of the jejunojejunostomy after laparoscopic gastric bypass
    Surg Obes Relat Dis, 9 (2), 234-7
    DOI 10.1016/j.soard.2011.12.014, PubMed 22421098
  2. Søvik TT, Karlsson J, Aasheim ET, Fagerland MW, Björkman S, Engström M, Kristinsson J, Olbers T, Mala T (2012)
    Gastrointestinal function and eating behavior after gastric bypass and duodenal switch
    Surg Obes Relat Dis, 9 (5), 641-7
    DOI 10.1016/j.soard.2012.06.006, PubMed 22951078

Publications 2011

  1. Hewitt S, Weidanz F, Westgeest H, Ruza I, Ciferska H, Pasquet F, Salomäki S, Olsen E (2011)
    European School of Internal Medicine (ESIM) in Brighton: experiences and reflections
    Eur J Intern Med, 22 (3), 238-40
    DOI 10.1016/j.ejim.2011.01.006, PubMed 21570640
  2. Hofsø D, Aasheim ET, Søvik TT, Jakobsen GS, Johnson LK, Sandbu R, Aas AT, Kristinsson J, Hjelmesæth J (2011)
    [Follow-up after bariatric surgery]
    Tidsskr Nor Laegeforen, 131 (19), 1887-92
    DOI 10.4045/tidsskr.10.1463, PubMed 21984294
  3. Hølmebakk T, Solbakken A, Mala T, Nesbakken A (2011)
    Clinical prediction of survival by surgeons for patients with incurable abdominal malignancy
    Eur J Surg Oncol, 37 (7), 571-5
    DOI 10.1016/j.ejso.2011.02.009, PubMed 21444178
  4. Schou CF, Søvik TT, Aasheim ET, Kristinsson J, Mala T (2011)
    [Treating morbid obesity with laparoscopic biliopancreatic diversion with duodenal switch]
    Tidsskr Nor Laegeforen, 131 (19), 1882-6
    DOI 10.4045/tidsskr.10.1164, PubMed 21984293
  5. Søvik TT, Aasheim ET, Taha O, Engström M, Fagerland MW, Björkman S, Kristinsson J, Birkeland KI, Mala T, Olbers T (2011)
    Weight loss, cardiovascular risk factors, and quality of life after gastric bypass and duodenal switch: a randomized trial
    Ann Intern Med, 155 (5), 281-91
    DOI 10.7326/0003-4819-155-5-201109060-00005, PubMed 21893621
  6. Aasheim ET (2011)
    A global obesity industry
    Tidsskr Nor Laegeforen, 131 (21), 2107
    DOI 10.4045/tidsskr.11.1098, PubMed 22048195

Publications 2010

  1. Berg M, Danielsen SA, Ahlquist T, Merok MA, Ågesen TH, Vatn MH, Mala T, Sjo OH, Bakka A, Moberg I, Fetveit T, Mathisen Ø, Husby A, Sandvik O, Nesbakken A, Thiis-Evensen E, Lothe RA (2010)
    DNA sequence profiles of the colorectal cancer critical gene set KRAS-BRAF-PIK3CA-PTEN-TP53 related to age at disease onset
    PLoS One, 5 (11), e13978
    DOI 10.1371/journal.pone.0013978, PubMed 21103049
  2. Kazaryan AM, Pavlik Marangos I, Rosseland AR, Røsok BI, Mala T, Villanger O, Mathisen O, Giercksky KE, Edwin B (2010)
    Laparoscopic liver resection for malignant and benign lesions: ten-year Norwegian single-center experience
    Arch Surg, 145 (1), 34-40
    DOI 10.1001/archsurg.2009.229, PubMed 20083752
  3. Sovik TT, Aasheim ET, Olbers T (2010)
    Randomized clinical trial of laparoscopic gastric bypass versus laparoscopic duodenal switch for superobesity (Br J Surg 2010; 97: 160-166)
    Br. J. Surg., 97 (6), 960-961
  4. Søvik TT, Irandoust B, Birkeland KI, Aasheim ET, Schou CF, Kristinsson J, Mala T (2010)
    [Type 2 diabetes and metabolic syndrome before and after gastric bypass]
    Tidsskr Nor Laegeforen, 130 (13), 1347-50
    DOI 10.4045/tidsskr.09.0935, PubMed 20596116
  5. Søvik TT, Taha O, Aasheim ET, Engström M, Kristinsson J, Björkman S, Schou CF, Lönroth H, Mala T, Olbers T (2010)
    Randomized clinical trial of laparoscopic gastric bypass versus laparoscopic duodenal switch for superobesity
    Br J Surg, 97 (2), 160-6
    DOI 10.1002/bjs.6802, PubMed 20035530

Publications 2009

  1. Hjelmesaeth J, Hofsø D, Aasheim ET, Jenssen T, Moan J, Hager H, Røislien J, Bollerslev J (2009)
    Parathyroid hormone, but not vitamin D, is associated with the metabolic syndrome in morbidly obese women and men: a cross-sectional study
    Cardiovasc Diabetol, 8, 7
    DOI 10.1186/1475-2840-8-7, PubMed 19187564
  2. Skogøy K, Laurini R, Aasheim ET (2009)
    [Pregnancy shortly after bariatric surgery]
    Tidsskr Nor Laegeforen, 129 (6), 534-6
    DOI 10.4045/tidsskr.09.34019, PubMed 19291886
  3. Aasheim ET, Björkman S, Søvik TT, Engström M, Hanvold SE, Mala T, Olbers T, Bøhmer T (2009)
    Vitamin status after bariatric surgery: a randomized study of gastric bypass and duodenal switch
    Am J Clin Nutr, 90 (1), 15-22
    DOI 10.3945/ajcn.2009.27583, PubMed 19439456
  4. Aasheim ET, Frigstad SO, Søvik TT, Birkeland KI, Haukeland JW (2009)
    Hyperinsulinemic hypoglycemia and liver cirrhosis presenting after duodenal switch: a case report
    Surg Obes Relat Dis, 6 (4), 441-3
    DOI 10.1016/j.soard.2009.11.007, PubMed 20096646
  5. Aasheim ET, Hofsø D, Søvik TT (2009)
    Vitamin supplements after bariatric surgery
    Clin Endocrinol (Oxf), 72 (1), 134-5
    DOI 10.1111/j.1365-2265.2009.03611.x, PubMed 19508588
  6. Aasheim ET, Hove AB, Bøhmer T (2009)
    Thiamine assay values: influence of anticoagulants and haemoglobin
    Scand J Clin Lab Invest, 69 (4), 460-1
    DOI 10.1080/00365510902783676, PubMed 19347747

Publications 2008

  1. Mala T, Nesbakken A (2008)
    Morbidity related to the use of a protective stoma in anterior resection for rectal cancer
    Colorectal Dis, 10 (8), 785-8
    DOI 10.1111/j.1463-1318.2007.01456.x, PubMed 18190612
  2. Søvik TT, Aasheim ET, Kristinsson J, Schou CF, Diep LM, Nesbakken A, Mala T (2008)
    Establishing laparoscopic Roux-en-Y gastric bypass: perioperative outcome and characteristics of the learning curve
    Obes Surg, 19 (2), 158-165
    DOI 10.1007/s11695-008-9584-x, PubMed 18566869
  3. Aasheim ET (2008)
    Wernicke encephalopathy after bariatric surgery: a systematic review
    Ann Surg, 248 (5), 714-20
    DOI 10.1097/SLA.0b013e3181884308, PubMed 18948797
  4. Aasheim ET, Hofsø D, Hjelmesaeth J, Birkeland KI, Bøhmer T (2008)
    Vitamin status in morbidly obese patients: a cross-sectional study
    Am J Clin Nutr, 87 (2), 362-9
    DOI 10.1093/ajcn/87.2.362, PubMed 18258626
  5. Aasheim ET, Hofsø D, Hjelmesaeth J, Sandbu R (2008)
    Peripheral neuropathy and severe malnutrition following duodenal switch
    Obes Surg, 18 (12), 1640-3
    DOI 10.1007/s11695-008-9539-2, PubMed 18463930
  6. Aasheim ET, Søvik TT, Bakke EF (2008)
    Night blindness after duodenal switch
    Surg Obes Relat Dis, 4 (5), 685-6
    DOI 10.1016/j.soard.2008.05.001, PubMed 18586568

Publications 2007

  1. Fagerberg B, Schuster H, Birketvedt GS, Tonstad S, Ohman KP, Gause-Nilsson I, SIR Study Group (2007)
    Improvement of postprandial lipid handling and glucose tolerance in a non-diabetic population by the dual PPARalpha/gamma agonist, tesaglitazar
    Diab Vasc Dis Res, 4 (3), 174-80
    DOI 10.3132/dvdr.2007.038, PubMed 17907107
  2. Olsen T, Goll R, Cui G, Husebekk A, Vonen B, Birketvedt GS, Florholmen J (2007)
    Tissue levels of tumor necrosis factor-alpha correlates with grade of inflammation in untreated ulcerative colitis
    Scand J Gastroenterol, 42 (11), 1312-20
    DOI 10.1080/00365520701409035, PubMed 17852866
  3. Schuster H, Fagerberg B, Edwards S, Halmos T, Lopatynski J, Stender S, Birketvedt GS, Tonstad S, Gause-Nilsson I, Halldórsdóttir S, Ohman KP, SIR Investigators (2007)
    Tesaglitazar, a dual peroxisome proliferator-activated receptor alpha/gamma agonist, improves apolipoprotein levels in non-diabetic subjects with insulin resistance
    Atherosclerosis, 197 (1), 355-62
    DOI 10.1016/j.atherosclerosis.2007.05.029, PubMed 17631296
  4. Søvik TT, Aasheim ET, Kristinsson J, Schou CF, Nesbakken A, Mala T (2007)
    [Surgical treatment of morbid obesity at a regional center]
    Tidsskr Nor Laegeforen, 127 (1), 47-9
    PubMed 17205090
  5. Aasheim ET, Mala T, Søvik TT, Kristinsson J, Bøhmer T (2007)
    [Surgical treatment of morbid obesity]
    Tidsskr Nor Laegeforen, 127 (1), 38-42
    PubMed 17205088

Publications 2006

  1. Avitsland TL, Kristensen C, Emblem R, Veenstra M, Mala T, Bjørnland K (2006)
    Percutaneous endoscopic gastrostomy in children: a safe technique with major symptom relief and high parental satisfaction
    J Pediatr Gastroenterol Nutr, 43 (5), 624-8
    DOI 10.1097/01.mpg.0000229550.54455.63, PubMed 17130739
  2. Frich L, Hol PK, Roy S, Mala T, Edwin B, Clausen OP, Gladhaug IP (2006)
    Experimental hepatic radiofrequency ablation using wet electrodes: electrode-to-vessel distance is a significant predictor for delayed portal vein thrombosis
    Eur Radiol, 16 (9), 1990-9
    DOI 10.1007/s00330-006-0177-6, PubMed 16541225
  3. Frich L, Mala T, Gladhaug IP (2006)
    Hepatic radiofrequency ablation using perfusion electrodes in a pig model: effect of the Pringle manoeuvre
    Eur J Surg Oncol, 32 (5), 527-32
    DOI 10.1016/j.ejso.2006.02.021, PubMed 16595167

Publications 2005

  1. Frich L, Edwin B, Brabrand K, Rosseland AR, Mala T, Mathisen O, Gladhaug I (2005)
    Gastric perforation after percutaneous radiofrequency ablation of a colorectal liver metastasis in a patient with adhesions in the peritoneal cavity
    AJR Am J Roentgenol, 184 (3 Suppl), S120-2
    DOI 10.2214/ajr.184.3_supplement.0184s120, PubMed 15728002
  2. Mala T, Edwin B (2005)
    Role and limitations of laparoscopic liver resection of colorectal metastases
    Dig Dis, 23 (2), 142-50
    DOI 10.1159/000088596, PubMed 16352894
  3. Mala T, Edwin B, Rosseland AR, Gladhaug I, Fosse E, Mathisen O (2005)
    Laparoscopic liver resection: experience of 53 procedures at a single center
    J Hepatobiliary Pancreat Surg, 12 (4), 298-303
    DOI 10.1007/s00534-005-0974-3, PubMed 16133696
  4. Samset E, Mala T, Aurdal L, Balasingham I (2005)
    Intra-operative visualisation of 3D temperature maps and 3D navigation during tissue cryoablation
    Comput Med Imaging Graph, 29 (6), 499-505
    DOI 10.1016/j.compmedimag.2005.02.008, PubMed 15996854

Publications 2004

  1. Edwin B, Mala T, Mathisen Ø, Gladhaug I, Buanes T, Lunde OC, Søreide O, Bergan A, Fosse E (2004)
    Laparoscopic resection of the pancreas: a feasibility study of the short-term outcome
    Surg Endosc, 18 (3), 407-11
    DOI 10.1007/s00464-003-9007-y, PubMed 14752628
  2. Eidheim OC, Aurdal L, Omholt-Jensen T, Mala T, Edwin B (2004)
    Segmentation of liver vessels as seen in MR and CT images
    INT CONGR SER, 1268, 201-206
  3. Mala T (2004)
    Extensive freezing necessary to ensure liver tumor ablation
    Cryobiology, 48 (3), 362; author reply 363-4
    DOI 10.1016/j.cryobiol.2004.02.006, PubMed 15157785
  4. Marshall HM, Allison KC, O'Reardon JP, Birketvedt G, Stunkard AJ (2004)
    Night eating syndrome among nonobese persons
    Int J Eat Disord, 35 (2), 217-22
    DOI 10.1002/eat.10241, PubMed 14994360