Jon Kristinsson
- Surgeon; PhD
Publications 2021
The first modified Delphi consensus statement on sleeve gastrectomy
Surg Endosc (in press)
DOI 10.1007/s00464-020-08216-w, PubMed 33433676
Publications 2020
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
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
The First Modified Delphi Consensus Statement for Resuming Bariatric and Metabolic Surgery in the COVID-19 Times
Obes. Surg.
The First Modified Delphi Consensus Statement for Resuming Bariatric and Metabolic Surgery in the COVID-19 Times
Obes Surg, 31 (1), 451-456
DOI 10.1016/S2213-8587(20)30157-1, PubMed 32740826
Preoperative inhibitory control predicts weight loss 1 year after bariatric surgery
Eur Eat Disord Rev
DOI 10.1002/erv.2801, PubMed 33125194
Publications 2019
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
Executive Function, Eating Behavior, and Preoperative Weight Loss in Bariatric Surgery Candidates: An Observational Study
Obes Facts, 12 (5), 489-501
DOI 10.1159/000502118, PubMed 31505516
Publications 2018
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
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
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
Hepatotoxicity During Maintenance Therapy and Prognosis in Children With Acute Lymphoblastic Leukemia
J Pediatr Hematol Oncol, 39 (3), 161-166
DOI 10.1097/MPH.0000000000000733, PubMed 28060115
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
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
Publications 2016
Maintenance therapy of childhood acute lymphoblastic leukemia revisited-Should drug doses be adjusted by white blood cell, neutrophil, or lymphocyte counts?
Pediatr Blood Cancer, 63 (12), 2104-2111
DOI 10.1002/pbc.26139, PubMed 27447547
Publications 2015
Vitamin concentrations 5 years after gastric bypass
Eur J Clin Nutr, 69 (11), 1249-55
DOI 10.1038/ejcn.2015.82, PubMed 26081488
The ASMBS textbook of bariatric surgery, vol 2, Integrated health
Tidsskr. Nor. Laegeforen., 135 (11), 1058
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
Publications 2014
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
Publications 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
[Acute internal hernia following gastric bypass for morbid obesity]
Tidsskr Nor Laegeforen, 133 (6), 640-4
DOI 10.4045/tidsskr.12.1113, PubMed 23552158
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
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
[Follow-up after bariatric surgery]
Tidsskr Nor Laegeforen, 131 (19), 1887-92
DOI 10.4045/tidsskr.10.1463, PubMed 21984294
Endoscopic snare resection followed by laser ablation in the treatment of large, sessile rectal adenomas
Scand J Surg, 100 (2), 99-104
DOI 10.1177/145749691110000206, PubMed 21737385
[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
Publications 2010
The degree of myelosuppression during maintenance therapy of adolescents with B-lineage intermediate risk acute lymphoblastic leukemia predicts risk of relapse
Leukemia, 24 (4), 715-20
DOI 10.1038/leu.2009.303, PubMed 20130603
[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
Methotrexate/6-mercaptopurine maintenance therapy influences the risk of a second malignant neoplasm after childhood acute lymphoblastic leukemia: results from the NOPHO ALL-92 study
Blood, 113 (24), 6077-84
DOI 10.1182/blood-2008-11-187880, PubMed 19224761
Long-term results of NOPHO ALL-92 and ALL-2000 studies of childhood acute lymphoblastic leukemia
Leukemia, 24 (2), 345-54
DOI 10.1038/leu.2009.251, PubMed 20010622
Oral methotrexate/6-mercaptopurine may be superior to a multidrug LSA2L2 Maintenance therapy for higher risk childhood acute lymphoblastic leukemia: results from the NOPHO ALL-92 study
J Pediatr Hematol Oncol, 31 (6), 385-92
DOI 10.1097/MPH.0b013e3181a6e171, PubMed 19648786
Publications 2008
Thiopurine methyltransferase activity is related to the risk of relapse of childhood acute lymphoblastic leukemia: results from the NOPHO ALL-92 study
Leukemia, 23 (3), 557-64
DOI 10.1038/leu.2008.316, PubMed 18987654
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]
Tidsskr Nor Laegeforen, 127 (1), 38-42
PubMed 17205088
[Surgical treatment of morbid obesity at a regional center]
Tidsskr Nor Laegeforen, 127 (1), 47-9
PubMed 17205090
Publications 2003
Incidence of juvenile idiopathic arthritis in the Nordic countries. A population based study with special reference to the validity of the ILAR and EULAR criteria
J Rheumatol, 30 (10), 2275-82
PubMed 14528529
Age- and sex-specific incidence of childhood leukemia by immunophenotype in the Nordic countries
J Natl Cancer Inst, 95 (20), 1539-44
DOI 10.1093/jnci/djg064, PubMed 14559876
Intensification of mercaptopurine/methotrexate maintenance chemotherapy may increase the risk of relapse for some children with acute lymphoblastic leukemia
J Clin Oncol, 21 (7), 1332-9
DOI 10.1200/JCO.2003.04.039, PubMed 12663723
Publications 2002
The influence of heredity for psoriasis on the ILAR classification of juvenile idiopathic arthritis
J Rheumatol, 29 (11), 2454-8
PubMed 12415608
Comparison of faecal and intestinal concentrations of granulocyte marker protein and localization of gastrointestinal tumours in rats
Scand J Gastroenterol, 37 (9), 1029-33
DOI 10.1080/003655202320378211, PubMed 12374227
Publications 2001
Construct validity of ILAR and EULAR criteria in juvenile idiopathic arthritis: a population based incidence study from the Nordic countries. International League of Associations for Rheumatology. European League Against Rheumatism
J Rheumatol, 28 (12), 2737-43
PubMed 11764226
A new fecal calprotectin test for colorectal neoplasia. Clinical results and comparison with previous method
Scand J Gastroenterol, 36 (3), 291-6
DOI 10.1080/003655201750074618, PubMed 11305517
Fecal excretion of calprotectin in colorectal cancer: relationship to tumor characteristics
Scand J Gastroenterol, 36 (2), 202-7
DOI 10.1080/003655201750065979, PubMed 11252414
Screening of first degree relatives of patients operated for colorectal cancer: evaluation of fecal calprotectin vs. hemoccult II
Digestion, 64 (2), 104-10
DOI 10.1159/000048848, PubMed 11684824
Screening of first degree relatives of patients operated for colorectal cancer: evaluation of fecal calprotecin vs. hemocculat II
In Digestion, Karger, Basel, 64(2001)nr 2, s.104-110
BIBSYS 022002162
Fatal poisoning in drug addicts in the Nordic countries
Forensic Sci Int, 123 (1), 63-9
DOI 10.1016/s0379-0738(01)00524-2, PubMed 11731199
Copper, ceruloplasmin and superoxide dismutase (SOD1) in patients with Down's syndrome
Pharmacol Toxicol, 89 (6), 320-5
DOI 10.1034/j.1600-0773.2001.d01-168.x, PubMed 11903959
Publications 2000
Severe atenolol and diltiazem overdose
J Toxicol Clin Toxicol, 38 (6), 661-5
DOI 10.1081/clt-100102018, PubMed 11185975
Copper, ceruloplasmin and superoxide dismutase (SOD) in amyotrophic lateral sclerosis
Pharmacol Toxicol, 87 (3), 126-30
DOI 10.1111/j.0901-9928.2000.870305.x, PubMed 11068853
Publications 1999
Possible carcinogenic effect of 6-mercaptopurine on bone marrow stem cells: relation to thiopurine metabolism
Cancer, 86 (6), 1080-6
DOI 10.1002/(sici)1097-0142(19990915)86:6<1080::aid-cncr26>3.0.co;2-5, PubMed 10491537
Drugged driving in the Nordic countries--a comparative study between five countries
Forensic Sci Int, 106 (3), 173-90
DOI 10.1016/s0379-0738(99)00194-2, PubMed 10680066
Granulocyte marker protein is increased in stools from rats with azoxymethane-induced colon cancer
Scand J Gastroenterol, 34 (12), 1216-23
DOI 10.1080/003655299750024733, PubMed 10636069
Copper, ceruloplasmin, superoxide dismutase and iron parameters in Parkinson's disease
Pharmacol Toxicol, 85 (5), 239-43
DOI 10.1111/j.1600-0773.1999.tb02015.x, PubMed 10608487
Publications 1998
Intensified treatment of acute childhood lymphoblastic leukaemia has improved prognosis, especially in non-high-risk patients: the Nordic experience of 2648 patients diagnosed between 1981 and 1996. Nordic Society of Paediatric Haematology and Oncology (NOPHO)
Acta Paediatr, 87 (11), 1151-61
DOI 10.1080/080352598750031149, PubMed 9846917
The clinical indications for identical pathogenesis of isolated and non-isolated testicular relapses in acute lymphoblastic leukaemia
Acta Paediatr, 87 (6), 638-43
DOI 10.1080/080352598750014049, PubMed 9686656
Fecal calprotectin concentration in patients with colorectal carcinoma
Dis Colon Rectum, 41 (3), 316-21
DOI 10.1007/BF02237485, PubMed 9514426
Cat-scratch disease manifesting as unifocal helioid choroiditis
Arch Ophthalmol, 116 (9), 1249-51
PubMed 9747695
A pharmacokinetic evaluation of pravastatin in middle-aged and elderly volunteers
Eur J Drug Metab Pharmacokinet, 23 (1), 13-8
DOI 10.1007/BF03189821, PubMed 9625267
Copper, ceruloplasmin and superoxide dismutase in patients with Alzheimer's disease . a case-control study
Dement Geriatr Cogn Disord, 9 (5), 239-42
DOI 10.1159/000017067, PubMed 9701674
Publications 1997
Impact of morning versus evening schedule for oral methotrexate and 6-mercaptopurine on relapse risk for children with acute lymphoblastic leukemia. Nordic Society for Pediatric Hematology and Oncology (NOPHO)
J Pediatr Hematol Oncol, 19 (2), 102-9
DOI 10.1097/00043426-199703000-00002, PubMed 9149738
Publications 1996
Pharmacokinetics of lignocaine in Icelandic horses after infiltration anaesthesia
Vet Rec, 138 (5), 111-2
DOI 10.1136/vr.138.5.111, PubMed 8650905
Drug addict deaths in the Nordic countries: a study based on medicolegally examined cases in the five Nordic countries in 1991
Forensic Sci Int, 77 (1-2), 109-18
DOI 10.1016/0379-0738(95)01849-2, PubMed 8675131
Fatal poisonings in young drug addicts in the Nordic countries: a comparison between 1984-1985 and 1991
Forensic Sci Int, 78 (1), 29-37
DOI 10.1016/0379-0738(95)01850-6, PubMed 8855045
Publications 1995
Risk of relapse in childhood acute lymphoblastic leukemia is related to RBC methotrexate and mercaptopurine metabolites during maintenance chemotherapy. Nordic Society for Pediatric Hematology and Oncology
J Clin Oncol, 13 (2), 345-51
DOI 10.1200/JCO.1995.13.2.345, PubMed 7531219
Outcome after first relapse in children with acute lymphoblastic leukemia: a population-based study of 315 patients from the Nordic Society of Pediatric Hematology and Oncology (NOPHO)
Med Pediatr Oncol, 25 (5), 372-8
DOI 10.1002/mpo.2950250503, PubMed 7674994
Publications 1994
[The role of carbon monoxide and ethanol in fire casualties: A retrospective study of carboxyhemoglobin and blood ethanol levels in fire victims]
Laeknabladid, 80 (5), 185-8
PubMed 21593521
The metabolism of mebeverine in man: identification of urinary metabolites by gas chromatography/mass spectrometry
Pharmacol Toxicol, 74 (3), 174-80
DOI 10.1111/j.1600-0773.1994.tb01095.x, PubMed 8008724
Cerebral irradiation causes blunted pubertal growth in girls treated for acute leukemia
Med Pediatr Oncol, 22 (6), 375-9
DOI 10.1002/mpo.2950220604, PubMed 8152398
Publications 1993
Faecal calprotectin: a novel test for the diagnosis of colorectal cancer?
Scand J Gastroenterol, 28 (12), 1073-6
DOI 10.3109/00365529309098312, PubMed 8303210
Publications 1991
Chlormezanone plasma and blood levels in patients after single and repeated oral doses and after suicidal drug overdose
Eur J Drug Metab Pharmacokinet, 16 (1), 43-7
DOI 10.1007/BF03189873, PubMed 1936060
Publications 1989
[Fatal poisoning in Scandinavia--narcotic addicts are a high-risk group]
Nord Med, 104 (8-9), 224-7
PubMed 2780278
Fatal intoxications in the Nordic countries. A forensic toxicological study with special reference to young drug addicts
Z Rechtsmed, 102 (6), 355-65
DOI 10.1007/BF00200244, PubMed 2567559
Publications 1983
Organ levels of amitriptyline and nortriptyline in fatal amitriptyline poisoning
Acta Pharmacol Toxicol (Copenh), 52 (2), 150-2
DOI 10.1111/j.1600-0773.1983.tb03417.x, PubMed 6846023
Publications 1982
An efficient method for the extraction of antidepressant drugs from post mortem samples
Acta Pharmacol Toxicol (Copenh), 50 (4), 318-20
DOI 10.1111/j.1600-0773.1982.tb00981.x, PubMed 7102349
Publications 1981
A gas chromatographic method for the determination of antidepressant drugs in human serum
Acta Pharmacol Toxicol (Copenh), 49 (5), 390-8
DOI 10.1111/j.1600-0773.1981.tb00921.x, PubMed 7345880
Publications 1977
A case of fatal propranolol intoxication
Acta Pharmacol Toxicol (Copenh), 41 (2), 190-2
DOI 10.1111/j.1600-0773.1977.tb02138.x, PubMed 579057