Publications 2021

Durbeck A, Johannessen HO, Drolsum A, Johnson E (2021)
Very long-term outcome after resection rectopexy for internal rectal intussusception
Scand. J. Gastroenterol., 56 (1), 122-127
DOI 10.1080/00365521.2020.1853221

Haug HM, Carlsen E, Johannessen HO, Johnson E (2021)
Short-, long-, and very long-term results of secondary anterior sphincteroplasty in 20 patients with obstetric injury
Int. J. Colorectal Dis., 36 (12), 2775-2778
DOI 10.1007/s00384-021-04026-1

Publications 2020

Hauge T, Amdal CD, Falk RS, Johannessen HO, Johnson E (2020)
Long-term outcome in patients operated with hybrid esophagectomy for esophageal cancer - a cohort study
Acta Oncol., 59 (7), 859-865
DOI 10.1080/0284186X.2020.1750694

Mala T, Forland DT, Vetti HH, Skagemo CU, Johannessen HO, Johnson E (2020)
Gastric adenocarcinoma and proximal ventricular polyposis - a rare form of hereditary stomach cancer
Tidsskr. Nor. Laegeforen., 140 (7), 676-679

Nilsson K, Klevebro F, Rouvelas I, Lindblad M, Szabo E, Halldestam I, Smedh U, Wallner B, Johansson J, Johnsen G, Aahlin EK, Johannessen HO, Hjortland GO, Bartella I, Schroder W, Bruns C, Nilsson M (2020)
Surgical Morbidity and Mortality From the Multicenter Randomized Controlled NeoRes II Trial Standard Versus Prolonged Time to Surgery After Neoadjuvant Chemoradiotherapy for Esophageal Cancer
Ann. Surg., 272 (5), 684-689
DOI 10.1097/SLA.0000000000004340

Safi N, Johannessen HO, Medhus AW, Mala T, Kazmi SSH (2020)
Laser Doppler Flowmetry and Visible Light Spectroscopy of the Gastric Tube During Minimally Invasive Esophagectomy
Vasc. Health Risk Manag., 16, 497-505
DOI 10.2147/VHRM.S269138

Publications 2019

Haug HM, Johnson E, Mala T, Forland DT, Sovik TT, Johannessen HO (2019)
Incarcerated paraesophageal hernia complicated by pancreatic damage and unusual comorbidity: Two retrospective case series
Int. J. Surg. Case Rep., 54, 75-78
DOI 10.1016/j.ijscr.2018.11.064

Hauge T, Kleven OC, Johnson E, Hofstad B, Johannessen HO (2019)
Outcome after iatrogenic esophageal perforation
Scand. J. Gastroenterol., 54 (2), 140-144
DOI 10.1080/00365521.2019.1575464

von Dobeln GA, Klevebro F, Jacobsen AB, Johannessen HO, Nielsen NH, Johnsen G, Hatlevoll I, Glenjen NI, Friesland S, Lundell L, Yu J, Nilsson M (2019)
Neoadjuvant chemotherapy versus neoadjuvant chemoradiotherapy for cancer of the esophagus or gastroesophageal junction: long-term results of a randomized clinical trial
Dis. Esophagus, 32 (2), doy078
DOI 10.1093/dote/doy078

Publications 2018

Hauge T, Kleven OC, Johnson E, Hofstad B, Johannessen HO (2018)
Outcome after stenting and debridement for spontaneous esophageal rupture
Scand. J. Gastroenterol., 53 (4), 398-402
DOI 10.1080/00365521.2018.1448886

Hauge T, Kleven OC, Johnson E, Hofstad B, Johannessen HO (2018)
Outcome after accidental food bolus-induced esophageal perforation
Scand. J. Gastroenterol., 53 (8), 905-909
DOI 10.1080/00365521.2018.1495760

Mala T, Johannessen HO, Forland D, Jacobsen TH, Johnson E (2018)
Laparoscopic resection of ventricular cancer at Oslo University Hospital, Ulleval 2015-18
Tidsskr. Nor. Laegeforen., 138 (18), 1718-1723

Publications 2017

Farnes I, Johnson E, Johannessen HO (2017)
Management of gastric conduit retention following hybrid and minimally invasive esophagectomy for esophageal cancer: Two retrospective case series
Int. J. Surg. Case Rep., 41, 505-510
DOI 10.1016/j.ijscr.2017.11.040

Publications 2016

Grotting MS, Loberg EM, Johannessen HO, Johnson E (2016)
Resection for oesophageal cancer - complications and survival
Tidsskr. Nor. Laegeforen., 136 (9), 809-813

Publications 2015

Hugin S, Johnson E, Johannessen HO, Hofstad B, Olafsen K, Mellem H (2015)
Gastrobronchial fistula following minimally invasive esophagectomy for esophageal cancer in a patient with myotonic dystrophy: Case report
Int. J. Surg. Case Rep., 17, 31-35
DOI 10.1016/j.ijscr.2015.10.023

Publications 2011

Flatmark K, Borgen E, Nesland JM, Rasmussen H, Johannessen HO, Bukholm I, Rosales R, Harklau L, Jacobsen HJ, Sandstad B, Boye K, Fodstad O (2011)
Disseminated tumour cells as a prognostic biomarker in colorectal cancer
Br. J. Cancer, 104 (9), 1434-1439
DOI 10.1038/bjc.2011.97

Wik TA, Hjorthaug JOB, Johannessen HO, Johnson E (2011)
SIGMOIDOSTOMY-RELATED PARASTOMAL HERNIA
Scand. J. Surg., 100 (3), 186-189
DOI 10.1177/145749691110000309

Publications 2010

Johnson E, Carlsen E, Steen TB, Hjorthaug JOB, Eriksen MT, Johannessen HO (2010)
Short- and long-term results of secondary anterior sphincteroplasty in 33 patients with obstetric injury
Acta Obstet. Gynecol. Scand., 89 (11), 1466-1472
DOI 10.3109/00016349.2010.519019

Kristjansson SR, Jordhoy MS, Nesbakken A, Skovlund E, Bakka A, Johannessen HO, Wyller TB (2010)
Which elements of a comprehensive geriatric assessment (CGA) predict post-operative complications and early mortality after colorectal cancer surgery?
J. Geriatr. Oncol., 1 (2), 57-65
DOI 10.1016/j.jgo.2010.06.001

Kristjansson SR, Nesbakken A, Jordhoy MS, Skovlund E, Audisio RA, Johannessen HO, Bakka A, Wyller TB (2010)
Comprehensive geriatric assessment can predict complications in elderly patients after elective surgery for colorectal cancer: A prospective observational cohort study
Crit. Rev. Oncol./Hematol., 76 (3), 208-217
DOI 10.1016/j.critrevonc.2009.11.002

Publications 2007

Johnson E, Stangeland A, Johannessen HO, Carlsen E (2007)
Resection rectopexy for external rectal prolapse reduces constipation and anal incontinence
Scand. J. Surg., 96 (1), 56-61
DOI 10.1177/145749690709600111

Publications 2006

Landsend E, Johnson E, Johannessen HO, Carlsen E (2006)
Long-term outcome after intestinal resection for Crohn's disease
Scand. J. Gastroenterol., 41 (10), 1204-1208
DOI 10.1080/00365520600731018

Langebrekke A, Istre O, Busund B, Johannessen HO, Qvigstad E (2006)
Endoscopic treatment of deep infiltrating endometriosis (DIE) involving the bladder and rectosigmoid colon
Acta Obstet. Gynecol. Scand., 85 (6), 712-715
DOI 10.1080/00016340500449907

Publications 2002

Johannessen HO (2002)
Radiation tolerance of the rectum: studies of normal tissue damage in a brachytherapy model
In Series of dissertations submitted to the Faculty of Medicine, University of Oslo, Unipub, Oslo, no. 21, 1 b. (flere pag.)
BIBSYS 021419329, ISBN 82-8072-004-9