
Tom Mala
- Group leader, Consultant; MD, Professor II
- +47 22 89 46 58; 924 58 235
Publications 2025
Body mass index and risk of connective and soft tissue cancer: results from a large cohort of 1.7 million individuals in Norway
BMC Cancer, 25 (1), 243
DOI 10.1186/s12885-025-13637-8, PubMed 39934750
Body mass index and risk of Hodgkin's lymphoma: Insights from a Norwegian cohort study
Eur J Cancer, 221, 115400
DOI 10.1016/j.ejca.2025.115400, PubMed 40228428
From conventional minimally invasive to robotic-assisted Ivor Lewis esophagectomy - A Nordic single-center retrospective study
Eur J Surg Oncol, 51 (11), 110417
DOI 10.1016/j.ejso.2025.110417, PubMed 40957314
Nasogastric tube after oesophagectomy and risk of anastomotic leak: a Nordic, multicentre, open-label, randomised, controlled, non-inferiority trial
Lancet Reg Health Eur, 57, 101411
DOI 10.1016/j.lanepe.2025.101411, PubMed 40799505
Post-bariatric hypoglycaemia
Tidsskr Nor Laegeforen, 145 (6)
DOI 10.4045/tidsskr.24.0396, PubMed 40366035
Food Addiction 5 and 10 Years Following Metabolic and Bariatric Surgery: a Prospective Observational Study
Obes Surg, 35 (5), 1649-1656
DOI 10.1007/s11695-025-07803-x, PubMed 40232658
Global mapping of RNA N6-methyladenosine (m6A) in human subcutaneous and visceral adipose tissue reveals novel targets that correlate with clinical variables of obesity
Biomark Res, 13 (1), 146
DOI 10.1186/s40364-025-00857-0, PubMed 41225618
Integrative analysis of gene expression and histone modifications for DES, DSP, GJA1 and SMOC2 in adipose tissue reveals potential relationship to cardiometabolic health
Mol Med (in press)
DOI 10.1186/s10020-025-01391-3, PubMed 41275133
Chromatin landscape in paired human visceral and subcutaneous adipose tissue and its impact on clinical variables in obesity
EBioMedicine, 114, 105653
DOI 10.1016/j.ebiom.2025.105653, PubMed 40118008
Associations between body mass index and gastroesophageal cancer incidence and mortality: novel insights from a nationwide registry-based cohort study
Dis Esophagus, 38 (2)
DOI 10.1093/dote/doaf018, PubMed 40091197
Longitudinal associations between self-regulation and physical activity behavior following metabolic bariatric surgery; an exploratory study
Int J Behav Nutr Phys Act, 22 (1), 40
DOI 10.1186/s12966-025-01739-2, PubMed 40200354
<italic>HOOK1</italic> Gene Expression and DNA Methylation in Obesity and Related Cardiometabolic Traits
Obes Facts, 1-15 (in press)
DOI 10.1159/000547603, PubMed 40716434
Publications 2024
The association between body mass index and vulvar and vaginal cancer incidence: findings from a large Norwegian cohort study
Cancer Causes Control, 36 (2), 191-198
DOI 10.1007/s10552-024-01930-z, PubMed 39463212
Body mass index and penile cancer incidence: results from a Norwegian cohort study of 829,081 men
BMC Urol, 24 (1), 260
DOI 10.1186/s12894-024-01636-z, PubMed 39605013
Treatment of anastomotic leakage following Ivor Lewis esophagectomy-10 year experience from a Nordic center
Dis Esophagus, 37 (9)
DOI 10.1093/dote/doae040, PubMed 38745429
Randomized controlled trial of nasogastric tube use after esophagectomy: study protocol for the kinetic trial
Dis Esophagus, 37 (6)
DOI 10.1093/dote/doae010, PubMed 38366900
[Radiotherapy for lymphatic leakage]
Tidsskr Nor Laegeforen, 144 (5)
DOI 10.4045/tidsskr.24.0039, PubMed 38651724
Everyday Life Six to Eight Months After Esophagectomy for Cancer: A Qualitative Study
Anticancer Res, 44 (2), 743-750
DOI 10.21873/anticanres.16865, PubMed 38307550
The Current State of Robot-Assisted Minimally Invasive Esophagectomy (RAMIE): Outcomes from the Upper GI International Robotic Association (UGIRA) Esophageal Registry
Ann Surg Oncol, 32 (2), 823-833
DOI 10.1245/s10434-024-16364-9, PubMed 39496901
Surgical Aspects of Sleeve Gastrectomy Are Related to Weight Loss and Gastro-esophageal Reflux Symptoms
Obes Surg, 34 (3), 902-910
DOI 10.1007/s11695-023-07018-y, PubMed 38329707
Kreft i spiserøret – betydelig bedre overlevelse
Tidsskr Nor Laegeforen, 144 (15)
DOI 10.4045/tidsskr.24.0547, PubMed 39692659
Binge Eating Behaviour Before and 10 Years Following Metabolic and Bariatric Surgery
Eur Eat Disord Rev, 33 (3), 544-550
DOI 10.1002/erv.3161, PubMed 39673139
Reducing the risk of cancer with bariatric surgery: The need for evidence to guide practice
Scand J Surg, 113 (4), 332-333
DOI 10.1177/14574969241264064, PubMed 38907591
Ten-Year Outcomes Following Roux-en-Y Gastric Bypass vs Duodenal Switch for High Body Mass Index: A Randomized Clinical Trial
JAMA Netw Open, 7 (6), e2414340
DOI 10.1001/jamanetworkopen.2024.14340, PubMed 38829616
Laparoskopisk transcystisk ekstraksjon av gallegangskonkrementer
Tidsskr Nor Laegeforen, 144 (7)
DOI 10.4045/tidsskr.23.0823, PubMed 38832622
Publications 2023
Pain sensitivity after Roux-en-Y gastric bypass - associations with chronic abdominal pain and psychosocial aspects
Scand J Pain, 23 (3), 511-517
DOI 10.1515/sjpain-2023-0005, PubMed 37306001
Chronic abdominal pain and quality of life after Roux-en-Y gastric bypass and sleeve gastrectomy - a cross-cohort analysis of two prospective longitudinal observational studies
Surg Obes Relat Dis, 19 (8), 819-829
DOI 10.1016/j.soard.2023.01.020, PubMed 36870870
Surgical Techniques and Related Perioperative Outcomes After Robot-assisted Minimally Invasive Gastrectomy (RAMIG): Results From the Prospective Multicenter International Ugira Gastric Registry
Ann Surg, 280 (1), 98-107
DOI 10.1097/SLA.0000000000006147, PubMed 37922237
Perioperative strategies for patients undergoing subtotal cholecystectomy: a single-center retrospective review of 102 procedures
Scand J Gastroenterol, 59 (4), 456-460
DOI 10.1080/00365521.2023.2289352, PubMed 38053273
Perioperative antibiotic prophylaxis and interval appendectomy
Tidsskr Nor Laegeforen, 143 (7)
DOI 10.4045/tidsskr.23.0282, PubMed 37158527
Abdominal pain: A foe in the orchestra of improving symptoms after Roux-en-Y gastric bypass surgery
Clin Obes, 13 (5), e12582
DOI 10.1111/cob.12582, PubMed 36727223
[Reduced cancer risk after bariatric surgery]
Tidsskr Nor Laegeforen, 143 (13)
DOI 10.4045/tidsskr.23.0501, PubMed 37753764
Stepping up the management of anastomotic leaks after oesophagectomy: getting a feel through less invasive tentacles
Br J Surg, 110 (8), 877-879
DOI 10.1093/bjs/znad142, PubMed 37279917
Body mass index and its association with 22 cancer types: a Norwegian cohort study of 481 202 cancer cases
Acta Oncol, 62 (10), 1273-1278
DOI 10.1080/0284186X.2023.2258443, PubMed 37713274
Single anastomosis gastric bypass for morbid obesity
Tidsskr Nor Laegeforen, 143 (16)
DOI 10.4045/tidsskr.23.0070, PubMed 37938008
Cancer risk and survival according to body mass index in hepatobiliary malignancies: a nationwide registry-based cohort study
HPB (Oxford), 25 (11), 1382-1392
DOI 10.1016/j.hpb.2023.07.882, PubMed 37544854
Associations of changes in physical activity and sedentary time with weight recurrence after bariatric surgery: a 5-year prospective study
Int J Obes (Lond), 47 (6), 463-470
DOI 10.1038/s41366-023-01284-7, PubMed 36828898
Publications 2022
Comparing Bariatric Surgery Patients Who Desire, Have Undergone, or Have No Desire for Body Contouring Surgery: a 5-Year Prospective Study of Body Image and Mental Health
Obes Surg, 32 (9), 2952-2959
DOI 10.1007/s11695-022-06117-6, PubMed 35739416
The treatment of appendicitis should be standardised
Tidsskr Nor Laegeforen, 142 (11)
DOI 10.4045/tidsskr.22.0232, PubMed 35997195
Predicting satisfaction with outcome and follow-up care 5 years after bariatric surgery: A prospective evaluation
Obes Sci Pract, 8 (5), 595-602
DOI 10.1002/osp4.594, PubMed 36238221
Early experience with total robotic D2 gastrectomy in a low incidence region: surgical perspectives
BMC Surg, 22 (1), 137
DOI 10.1186/s12893-022-01576-1, PubMed 35397558
[Gastroscopy following vertical sleeve gastrectomy for morbid obesity]
Tidsskr Nor Laegeforen, 142 (7)
DOI 10.4045/tidsskr.22.0056, PubMed 35510465
Targeted genetic and epigenetic profiling of esophageal adenocarcinomas and non-dysplastic Barrett's esophagus
Clin Epigenetics, 14 (1), 77
DOI 10.1186/s13148-022-01287-7, PubMed 35701814
Risk and survival in colorectal cancer with increasing body mass index: A nationwide population-based cohort study
Colorectal Dis, 25 (3), 375-385
DOI 10.1111/codi.16367, PubMed 36222384
Body mass index and pancreatic adenocarcinoma: A nationwide registry-based cohort study
Scand J Surg, 112 (1), 11-21
DOI 10.1177/14574969221127530, PubMed 36173093
Publications 2021
International variation in oesophageal and gastric cancer survival 2012-2014: differences by histological subtype and stage at diagnosis (an ICBP SURVMARK-2 population-based study)
Gut, 71 (8), 1532-1543
DOI 10.1136/gutjnl-2021-325266, PubMed 34824149
A prospective longitudinal study of chronic abdominal pain and symptoms after sleeve gastrectomy
Surg Obes Relat Dis, 17 (12), 2054-2064
DOI 10.1016/j.soard.2021.07.014, PubMed 34518144
Finding the sweet spot in the surgical treatment of diabetes in obesity
Br J Surg, 108 (9), 1011-1013
DOI 10.1093/bjs/znab179, PubMed 33914072
Letter to the Editor
Obes Surg, 31 (12), 5459
DOI 10.1007/s11695-021-05523-6, PubMed 34165667
Standard versus distal Roux-en-Y gastric bypass in patients with BMI 50-60 kg/m2: 5-year outcomes of a double-blind, randomized clinical trial
BJS Open, 5 (6)
DOI 10.1093/bjsopen/zrab105, PubMed 34791048
Publications 2020
New approaches to cancer care in a COVID-19 world
Lancet Oncol, 21 (7), e339-e340
DOI 10.1016/S1470-2045(20)30340-5, PubMed 32615112
Health benefits and risks during 10 years after Roux-en-Y gastric bypass
Surg Endosc, 34 (12), 5368-5376
DOI 10.1007/s00464-019-07328-2, PubMed 31993812
Nutritional status, sarcopenia, gastrointestinal symptoms and quality of life after gastrectomy for cancer - A cross-sectional pilot study
Clin Nutr ESPEN, 37, 195-201
DOI 10.1016/j.clnesp.2020.03.001, PubMed 32359743
Relationships Between Vitamin D Status and PTH over 5 Years After Roux-en-Y Gastric Bypass: a Longitudinal Cohort Study
Obes Surg, 30 (9), 3426-3434
DOI 10.1007/s11695-020-04582-5, PubMed 32306297
Surgery for Appendicitis: Where Do We Go? Rational Imaging and Surgical Approach
World J Surg, 44 (9), 2974-2975
DOI 10.1007/s00268-020-05594-z, PubMed 32440954
Gastric adenocarcinoma and proximal ventricular polyposis - a rare form of hereditary stomach cancer
Tidsskr. Nor. Laegeforen., 140 (7), 676-679
[Gastric adenocarcinoma and proximal polyposis of the stomach – a rare form of hereditary gastric cancer]
Tidsskr Nor Laegeforen, 140 (7)
DOI 10.4045/tidsskr.19.0480, PubMed 32378851
Gastric Bypass Versus Sleeve Gastrectomy: Patient Selection and Short-term Outcome of 47,101 Primary Operations From the Swedish, Norwegian, and Dutch National Quality Registries
Ann Surg, 272 (2), 326-333
DOI 10.1097/SLA.0000000000003279, PubMed 32675546
Covid-19 may present with acute abdominal pain
Br J Surg, 107 (7), e186-e187
DOI 10.1002/bjs.11674, PubMed 32343396
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, PubMed 33273819
Acute abdomen as an early symptom of COVID-19
Tidsskr Nor Laegeforen, 140 (7)
DOI 10.4045/tidsskr.20.0262, PubMed 32378864
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
Bone metabolism, bone mineral density and low-energy fractures 10 years after Roux-en-Y gastric bypass
Bone, 127, 436-445
DOI 10.1016/j.bone.2019.07.014, PubMed 31323430
Changes in bone quality after Roux-en-Y gastric bypass: A prospective cohort study in subjects with and without type 2 diabetes
Bone, 130, 115069
DOI 10.1016/j.bone.2019.115069, PubMed 31593823
Changes in Bone Marrow Adipose Tissue One Year After Roux-en-Y Gastric Bypass: A Prospective Cohort Study
J Bone Miner Res, 34 (10), 1815-1823
DOI 10.1002/jbmr.3814, PubMed 31216081
Irritable bowel syndrome-like symptoms and health related quality of life two years after Roux-en-Y gastric bypass - a prospective cohort study
BMC Gastroenterol, 19 (1), 204
DOI 10.1186/s12876-019-1103-0, PubMed 31791249
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
Associations between perceived somatic symptoms and mental health after Roux-en-Y gastric bypass: a 3-year prospective cohort study
Surg Obes Relat Dis, 16 (5), 626-632
DOI 10.1016/j.soard.2019.12.018, PubMed 32007433
Bariatric surgery at Oslo University Hospital 2004-14
Tidsskr. Nor. Laegeforen., 139 (10), 921-926
[Bariatric surgery at Oslo University Hospital 2004–14]
Tidsskr Nor Laegeforen, 139 (10)
DOI 10.4045/tidsskr.18.0495, PubMed 31238674
Bone Turnover Markers After Standard and Distal Roux-en-Y Gastric Bypass: Results from a Randomized Controlled Trial
Obes Surg, 29 (9), 2886-2895
DOI 10.1007/s11695-019-03909-1, PubMed 31065919
Publications 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
Anemia following Roux-en-Y gastric bypass for morbid obesity; a 5-year follow-up study
Scand J Gastroenterol, 53 (8), 917-922
DOI 10.1080/00365521.2018.1489892, PubMed 30231804
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, PubMed 30529949
Relationships of serum 25-hydroxyvitamin D, ionized calcium and parathyroid hormone after obesity surgery
Clin Endocrinol (Oxf), 88 (3), 372-379
DOI 10.1111/cen.13531, PubMed 29235126
Abdominal Pain After Roux-En-Y Gastric Bypass for Morbid Obesity
Scand J Surg, 107 (4), 277-284
DOI 10.1177/1457496918772360, PubMed 29739280
Laparoscopic resection of ventricular cancer at Oslo University Hospital, Ulleval 2015-18
Tidsskr. Nor. Laegeforen., 138 (18), 1718-1723
[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
Perioperative Outcomes of Primary Bariatric Surgery in North-Western Europe: a Pooled Multinational Registry Analysis
Obes Surg, 28 (12), 3916-3922
DOI 10.1007/s11695-018-3408-4, PubMed 30027332
Patient-Reported Outcome Measures 2 Years After Standard and Distal Gastric Bypass-a Double-Blind Randomized Controlled Trial
Obes Surg, 28 (3), 606-614
DOI 10.1007/s11695-017-2891-3, PubMed 28865057
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
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
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
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
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
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
Bile acid profiles over 5 years after gastric bypass and duodenal switch: results from a randomized clinical trial
Surg Obes Relat Dis, 13 (9), 1544-1553
DOI 10.1016/j.soard.2017.05.024, PubMed 28756050
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
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
The Gastric Remnant in Roux-en-Y Gastric Bypass: Challenges and Possibilities
J Clin Gastroenterol, 50 (7), 527-31
DOI 10.1097/MCG.0000000000000550, PubMed 27203428
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
A novel technique of Roux-en-Y gastric bypass reversal for postprandial hyperinsulinemic hypoglycaemia: A case report
Int J Surg Case Rep, 21, 91-4
DOI 10.1016/j.ijscr.2016.02.033, PubMed 26957187
Standard vs Distal Roux-en-Y Gastric Bypass in Patients With Body Mass Index 50 to 60: A Double-blind, Randomized Clinical Trial
JAMA Surg, 151 (12), 1146-1155
DOI 10.1001/jamasurg.2016.2798, PubMed 27626242
Publications 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
The ASMBS textbook of bariatric surgery
Tidsskr. Nor. Laegeforen., 135 (9), 875
DOI 10.4045/tidsskr.15.0201
[Dumping syndrome following gastric surgery]
Tidsskr Nor Laegeforen, 135 (2), 137-41
DOI 10.4045/tidsskr.14.0550, PubMed 25625992
[Dumping syndrome following gastric surgery]
Tidsskr Nor Laegeforen, 135 (4), 310
DOI 10.4045/tidsskr.15.0163, PubMed 25707648
[More could benefit from bariatric surgery]
Tidsskr Nor Laegeforen, 135 (6), 521-2
DOI 10.4045/tidsskr.15.0187, PubMed 25806755
Five-year outcomes after laparoscopic gastric bypass and laparoscopic duodenal switch in patients with body mass index of 50 to 60: a randomized clinical trial
JAMA Surg, 150 (4), 352-61
DOI 10.1001/jamasurg.2014.3579, PubMed 25650964
Changes in Health-Related Quality of Life After Gastric Bypass in Patients With and Without Obesity-Related Disease
Obes Surg, 25 (12), 2408-16
DOI 10.1007/s11695-015-1717-4, PubMed 26003550
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
Laparoscopic resection of recurrent ectopic hepatocellular carcinoma: A case report with review of the literature and guidelines for follow-up
Int J Surg Case Rep, 17, 92-5
DOI 10.1016/j.ijscr.2015.10.014, PubMed 26590353
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
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
Long-term improvements in pulmonary function 5 years after bariatric surgery
Obes Surg, 24 (5), 705-11
DOI 10.1007/s11695-013-1159-9, PubMed 24435516
Postprandial hyperinsulinemic hypoglycemia after gastric bypass surgical treatment
Surg Obes Relat Dis, 10 (6), 1220-5
DOI 10.1016/j.soard.2014.01.010, PubMed 25002326
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
Management of Injury to the Common Bile Duct in a Patient with Roux-en-Y Gastric Bypass
Case Rep Surg, 2014, 938532
DOI 10.1155/2014/938532, PubMed 25161795
Publications 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
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
[Acute internal hernia following gastric bypass for morbid obesity]
Tidsskr Nor Laegeforen, 133 (6), 640-4
DOI 10.4045/tidsskr.12.1113, PubMed 23552158
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
Publications 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
Microsatellite instability has a positive prognostic impact on stage II colorectal cancer after complete resection: results from a large, consecutive Norwegian series
Ann Oncol, 24 (5), 1274-82
DOI 10.1093/annonc/mds614, PubMed 23235802
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
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
Self-expanding metallic stents as bridge to surgery in obstructing colorectal cancer (Br J Surg 2011; 98: 275-281) Commentary
Br. J. Surg., 98 (2), 281
DOI 10.1002/bjs.7337
[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
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
CLC and IFNAR1 are differentially expressed and a global immunity score is distinct between early- and late-onset colorectal cancer
Genes Immun, 12 (8), 653-62
DOI 10.1038/gene.2011.43, PubMed 21716316
Effect of bariatric surgery on sulphur amino acids and glutamate
Br J Nutr, 106 (3), 432-40
DOI 10.1017/S0007114511000201, PubMed 21554803
Publications 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
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
[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
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
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
Publications 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
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
Publications 2007
[Surgical treatment of morbid obesity at a regional center]
Tidsskr Nor Laegeforen, 127 (1), 47-9
PubMed 17205090
[Surgical treatment of morbid obesity]
Tidsskr Nor Laegeforen, 127 (1), 38-42
PubMed 17205088
Publications 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
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
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
Cryoablation of liver tumours -- a review of mechanisms, techniques and clinical outcome
Minim Invasive Ther Allied Technol, 15 (1), 9-17
DOI 10.1080/13645700500468268, PubMed 16687327
Publications 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
Role and limitations of laparoscopic liver resection of colorectal metastases
Dig Dis, 23 (2), 142-50
DOI 10.1159/000088596, PubMed 16352894
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
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
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
Laparoscopicresection of the pancreas: a feasibility study of short-term outcome
In Surgical endoscopy, Springer International, Berlin, 18(2004)3, S. 407-11
BIBSYS 051908484
Segmentation of liver vessels as seen in MR and CT images
INT CONGR SER, 1268, 201-206
DOI 10.1016/j.ics.2004.03.184
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
Cryoablation of liver tissue: monitoring, techniques and tumour effects
In Series of dissertations submitted to the Faculty of Medicine, University of Oslo, Unipub, Oslo, no. 145, 1 b. (flere pag.)
BIBSYS 040136965, ISBN 82-8072-100-2
Liver tumor cryoablation: a commentary on the need of improved procedural monitoring
Technol Cancer Res Treat, 3 (1), 85-91
DOI 10.1177/153303460400300110, PubMed 14750897
Cryoablation of colorectal liver metastases: minimally invasive tumour control
Scand J Gastroenterol, 39 (6), 571-8
DOI 10.1080/00365520410000510, PubMed 15223683
Publications 2003
Detection of disseminated tumour cells in bone marrow of patients with isolated liver metastases from colorectal cancer
J Surg Oncol, 82 (4), 224-7
DOI 10.1002/jso.10223, PubMed 12672004
Percutaneous cryoablation of colorectal liver metastases: potentiated by two consecutive freeze-thaw cycles
Cryobiology, 46 (1), 99-102
DOI 10.1016/s0011-2240(02)00163-3, PubMed 12623032
Intraoperative contrast-enhanced MR-imaging as predictor of tissue damage during cryoablation of porcine liver
Magn Reson Imaging, 21 (7), 733-40
DOI 10.1016/s0730-725x(03)00176-0, PubMed 14559337
Hepatic vascular inflow occlusion enhances tissue destruction during cryoablation of porcine liver
J Surg Res, 115 (2), 265-71
DOI 10.1016/j.jss.2003.07.009, PubMed 14697293
Komplikasjoner etter operasjon for cancer coli
In Vitenskapelige forhandlinger, Norsk kirurgisk forening., [Oslo], 2003, Abstrakt 146
BIBSYS 041735544
Publications 2002
Using distance transformations to determine safe needle/probe paths during interventional procedures
CARS 2002: COMPUTER ASSISTED RADIOLOGY AND SURGERY, PROCEEDINGS, 1085
Hepatic resection for colorectal metastases: can preoperative scoring predict patient outcome?
World J Surg, 26 (11), 1348-53
DOI 10.1007/s00268-002-6231-x, PubMed 12297926
A comparative study of the short-term outcome following open and laparoscopic liver resection of colorectal metastases
Surg Endosc, 16 (7), 1059-63
DOI 10.1007/s00464-001-9176-5, PubMed 12165823
[Laparoscopic resection of the liver]
Tidsskr Nor Laegeforen, 122 (29), 2768-71
PubMed 12523141
Hepatocellular carcinoma in a low-incidence region. Surgical perspectives
Dig Surg, 19 (5), 373-8
DOI 10.1159/000065834, PubMed 12435908
Audit of intraoperative and early postoperative complications after introduction of mesorectal excision for rectal cancer
Eur J Surg, 168 (4), 229-35
DOI 10.1080/11024150260102843, PubMed 12440761
Audit of intraoperative and early postoperative complications after introduction of mesorectal excision for rectal cancer
In European journal of surgery, Taylor & Francis, Basingstoke, 168(2002)nr 4, s. 229-235
BIBSYS 03128373x
Local recurrence after mesorectal excision for rectal cancer
Eur J Surg Oncol, 28 (2), 126-34
DOI 10.1053/ejso.2001.1231, PubMed 11884047
Local recurrence after mesorectal excision for rectal cancer
In European journal of surgical oncology, Academic Press, London, 25(2002)nr 2, s. 126-134
BIBSYS 031283675
Publications 2001
Laparoscopic and open surgery for pheochromocytoma
BMC Surg, 1, 2
DOI 10.1186/1471-2482-1-2, PubMed 11580870
Liver tumors and minimally invasive surgery: a feasibility study
J Laparoendosc Adv Surg Tech A, 11 (3), 133-9
DOI 10.1089/10926420152389260, PubMed 11441989
Does tumor size influence the outcome of laparoscopic adrenalectomy?
J Laparoendosc Adv Surg Tech A, 11 (1), 1-4
DOI 10.1089/10926420150502850, PubMed 11444317
[Liver resection--indications and results]
Tidsskr Nor Laegeforen, 121 (21), 2476-80
PubMed 11875922
Magnetic-resonance-guided percutaneous cryoablation of hepatic tumours
Eur J Surg, 167 (8), 610-7
DOI 10.1080/110241501753171227, PubMed 11716448
[Cryoablation--a treatment option for inoperable liver tumors?]
Tidsskr Nor Laegeforen, 121 (21), 2510-5
PubMed 11875929
[Surgical treatment of esophageal cancer]
Tidsskr Nor Laegeforen, 121 (24), 2815-7
PubMed 11706486
Magnetic resonance imaging-estimated three-dimensional temperature distribution in liver cryolesions: a study of cryolesion characteristics assumed necessary for tumor ablation
Cryobiology, 43 (3), 268-75
DOI 10.1006/cryo.2001.2351, PubMed 11888220
Validation of estimated 3D temperature maps during hepatic cryo surgery
Magn Reson Imaging, 19 (5), 715-21
DOI 10.1016/s0730-725x(01)00389-7, PubMed 11672630
Publications 2000
[Endoscopic retrograde cholangiopancreatography--a 4-year retrospective study]
Tidsskr Nor Laegeforen, 120 (5), 560-2
PubMed 10833912
Endoskopisk retrograd kolangiopankreatikografi: et fireårsmateriale
In Tidsskrift for Den norske legeforening, Foreningen, Oslo, 120(2000)nr. 5, S. 560-2
BIBSYS 010704272