Olav Sandstad

  • Consultant; MD, PhD
  • +47 926 46 589

Education:

  • MD University of Oslo (1985)
  • PhD University of Oslo (2003)
  • Norwegian clinical specialist accreditations:Internal medicine (2000) and gastroenterology (2002)

Current position:

Consultant, Department of Gastroenterology, Oslo University Hospital

 

Publications 2021

Evensen H, Småstuen MC, Schulz A, Kristensen V, Larssen L, Skattum J, Sandstad O, Hauge T, Medhus AW (2021)
One year comprehensive prospective follow-up of achalasia patients after peroral endoscopic myotomy
Ann Med, 53 (1), 2225-2233
DOI 10.1080/07853890.2021.2005253, PubMed 34806501

Publications 2019

Evensen H, Kristensen V, Larssen L, Sandstad O, Hauge T, Medhus AW (2019)
Outcome of peroral endoscopic myotomy (POEM) in treatment-naive patients. A systematic review
Scand J Gastroenterol, 54 (1), 1-7
DOI 10.1080/00365521.2018.1549271, PubMed 30650313

Publications 2014

Hauge T, Johnson E, Sandstad O, Johannessen HO, Trondsen E (2014)
Surgical treatment of epiphrenic oesophageal diverticulum
Tidsskr Nor Laegeforen, 134 (10), 1047-50
DOI 10.4045/tidsskr.13.1336, PubMed 24865729

Publications 2013

Hope H, Skar V, Sandstad O, Husebye E, Medhus AW (2013)
Correction to: Small intestinal malabsorption in chronic alcoholism: a retrospective study of alcoholic patients by the 14C-D-xylose breath test
Scand J Gastroenterol, 48 (10), 1231-1232
DOI 10.3109/00365521.2013.825316, PubMed 28078905

Publications 2012

Hope H, Skar V, Sandstad O, Husebye E, Medhus AW (2012)
Small intestinal malabsorption in chronic alcoholism: a retrospective study of alcoholic patients by the ¹⁴C-D-xylose breath test
Scand J Gastroenterol, 47 (4), 428-34
DOI 10.3109/00365521.2011.648951, PubMed 22229732

Publications 2011

Hope HB, Medhus AW, Sandstad O, Borge CR, Skar V (2011)
Reduced ¹³C-D-xylose absorption in alcoholics is more likely caused by alterations in small intestinal mucosa than delayed gastric emptying
Scand J Gastroenterol, 46 (4), 414-9
DOI 10.3109/00365521.2010.536252, PubMed 21275757

Publications 2010

Sandstad O, Jacobsen D (2010)
Metodebok for leger
Oslo universitetssykehus, Ullevål, [Oslo] (13. utg.), 238 s.
BIBSYS 102417407, ISBN 978-82-473-0023-7

Publications 2008

Sandstad O (2008)
Gastroenterologiske rutiner ved Ullevål universitetssykehus
Ullevål universitetssykehus, [Oslo (8. utg.), vi, 204 s.
BIBSYS 10162851x, ISBN 978-82-473-0020-6

Sandstad O, Jacobsen D (2008)
Metodebok for leger
Ullevål universitetssykehus, [Oslo] (12. utg.), 240 s.
BIBSYS 100095372, ISBN 978-82-473-0021-3

Urdal P, Sandstad O, Løberg EM, Haug KB (2008)
[Useful genetic test for lactase deficiency]
Tidsskr Nor Laegeforen, 128 (5), 593
PubMed 18311211

Publications 2006

Sandstad O, Jacobsen D (2006)
Metodebok for leger
Ullevål universitetssykehus, [Oslo] (Utg. 11), 240 s.
BIBSYS 061124419, ISBN 82-993145-3-4

Publications 2004

Sandstad O (2004)
Gastroenterologiske rutiner ved Ullevål universitetssykehus m/ tumor mammae og thyreoidealidelser
Sykehuset, Oslo (utg. 7b), VI, 221 s.
BIBSYS 040893855, ISBN 82-473-0004-4

Publications 2003

Sandstad O (2003)
Common bile duct stones: pathogenesis of brown pigment calculi
In Series of dissertations submitted to the Faculty of Medicine, University of Oslo, Unipub, Oslo, no. 128, 1 b. (flere pag.)
BIBSYS 031874118, ISBN 82-8080-049-2

Publications 2002

Sandstad O, Jacobsen D (2002)
Metodebok for leger
Medisinsk klinikk, Hjerte-lungesenteret, Ullevål Universitetssykehus, Oslo (9. utg.), 220 s.
BIBSYS 021432090, ISBN 82-993145-1-8

Sandstad O, Osnes T, Skar V (2002)
D-glucaric acid in common duct bile and relation to choledocholithiasis
Scand J Gastroenterol, 37 (4), 488-92
DOI 10.1080/003655202317316141, PubMed 11989842

Publications 2000

Medhus AW, Sandstad O, Bredesen J, Husebye E (2000)
Stimulation of the small intestine by nutrients in relation to phase of the migrating motor complex
Scand J Gastroenterol, 35 (5), 494-500
DOI 10.1080/003655200750023750, PubMed 10868452

Sandstad O, Osnes T, Skar V, Urdal P, Osnes M (2000)
Structure and composition of common bile duct stones in relation to duodenal diverticula, gastric resection, cholecystectomy and infection
Digestion, 61 (3), 181-8
DOI 10.1159/000007755, PubMed 10773723

Sandstad O, Osnes T, Urdal P, Skar V, Osnes M (2000)
Brown pigment stones in the common bile duct: reduced bilirubinate diconjugate in bile
Scand J Gastroenterol, 35 (2), 198-203
DOI 10.1080/003655200750024399, PubMed 10720120

Publications 1999

Medhus AW, Sandstad O, Bredesen J, Husebye E (1999)
Delay of gastric emptying by duodenal intubation: sensitive measurement of gastric emptying by the paracetamol absorption test
Aliment Pharmacol Ther, 13 (5), 609-20
DOI 10.1046/j.1365-2036.1999.00519.x, PubMed 10233184

Medhus AW, Sandstad O, Näslund E, Hellström PM, Husebye E (1999)
The influence of the migrating motor complex on the postprandial endocrine response
Scand J Gastroenterol, 34 (10), 1012-8
DOI 10.1080/003655299750025129, PubMed 10563672

Publications 1998

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

Publications 1997

Osnes T, Sandstad O, Skar V, Osnes M (1997)
beta-Glucuronidase in common duct bile, methodological aspects, variation of pH optima and relation to gallstones
Scand J Clin Lab Invest, 57 (4), 307-15
DOI 10.3109/00365519709099404, PubMed 9249878

Osnes T, Sandstad O, Skar V, Osnes M (1997)
Lipopolysaccharides and beta-glucuronidase activity in choledochal bile in relation to choledocholithiasis
Digestion, 58 (5), 437-43
DOI 10.1159/000201480, PubMed 9383634

Publications 1995

Medhus A, Sandstad O, Bredesen J, Husebye E (1995)
The migrating motor complex modulates intestinal motility response and rate of gastric emptying of caloric meals
Neurogastroenterol Motil, 7 (1), 1-8
DOI 10.1111/j.1365-2982.1995.tb00202.x, PubMed 7627861

Sandstad O (1995)
[When should patients be admitted to hospital?]
Tidsskr Nor Laegeforen, 115 (11), 1435
PubMed 7770846

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, 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

Sandstad O, Osnes T, Skar V, Urdal P, Osnes M (1994)
Common bile duct stones are mainly brown and associated with duodenal diverticula
Gut, 35 (10), 1464-7
DOI 10.1136/gut.35.10.1464, PubMed 7959206

Publications 1993

Osnes T, Sandstad O, Skar V, Osnes M, Kierulf P (1993)
Total protein in common duct bile measured by acetonitrile precipitation and a micro bicinchoninic acid (BCA) method
Scand J Clin Lab Invest, 53 (7), 757-63
DOI 10.3109/00365519309092582, PubMed 8272764

Sandstad O, Osnes T, Skar V, Osnes M (1993)
Urinary D-glucaric acid, a marker substance for microsomal enzyme induction. Methodological aspects, responses to alcohol and findings in workers exposed to toluene
Scand J Clin Lab Invest, 53 (4), 327-33
DOI 10.3109/00365519309086623, PubMed 8378735

Publications 1992

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

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