Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/6/2025

Pre-Operative Management of Gastrointestinal Conditions Before Surgery

Inflammatory Bowel Disease (IBD) Management

  • The European Crohn's and Colitis Organisation recommends that biological treatments can be safely continued during the perioperative period in IBD patients 1, 2
  • The American Gastroenterological Association suggests that immunomodulators (azathioprine, mercaptopurine, methotrexate) can be continued during the perioperative period as they do not increase postoperative complications 3, 4
  • The European Crohn's and Colitis Organisation recommends that corticosteroids should be stopped or tapered to the lowest possible dose before surgery, with a target dose of below 20 mg prednisolone or equivalent 3, 5, 6
  • For patients on steroids during surgery, the American Gastroenterological Association recommends providing intravenous hydrocortisone until oral intake resumes (prednisolone 5 mg = hydrocortisone 20 mg) 5
  • The European Crohn's and Colitis Organisation suggests implementing standardized steroid-taper protocols postoperatively 5
  • Tofacitinib requires special consideration due to increased risk of venous thromboembolism; extended thromboprophylaxis is recommended by the American Gastroenterological Association 3

Nutritional Optimization

  • The European Crohn's and Colitis Organisation recommends assessing nutritional status in all IBD patients before elective surgery 3, 7
  • Malnutrition is more prevalent in active disease and Crohn's disease compared to ulcerative colitis, according to the American Gastroenterological Association 3
  • The European Society for Clinical Nutrition and Metabolism suggests considering exclusive or partial enteral nutrition for at least 6 weeks preoperatively in patients with penetrating or stricturing Crohn's disease or malnutrition 7
  • The American Gastroenterological Association recommends correcting anemia preoperatively to reduce risk of postoperative complications 7

Management of Sepsis/Abscesses

  • The American Gastroenterological Association recommends treating active infections before proceeding with surgery 7

Liver Disease Management

  • The American Association for the Study of Liver Diseases recommends assessing severity of liver disease using validated scoring systems 8
  • For patients with liver disease, the American Association for the Study of Liver Diseases suggests providing thromboprophylaxis as these patients have increased risk of thrombosis 3, 8
  • The American Association for the Study of Liver Diseases recommends considering steroid administration before hepatectomy in normal liver parenchyma to decrease liver injury (avoid in diabetic patients) 8
  • The American Association for the Study of Liver Diseases suggests ensuring adequate nutritional status; malnourished patients should receive oral nutritional supplements for seven days prior to surgery 8
  • The American Society of Anesthesiologists recommends limiting preoperative fasting to 6 hours for solids and 2 hours for liquids 8
  • The American Society of Anesthesiologists suggests considering carbohydrate loading the evening before surgery and 2 hours before anesthesia 8

General Considerations for All GI Conditions

  • The American College of Surgeons recommends that thromboprophylaxis is essential, particularly for major hepatectomy and IBD surgery 3, 8
  • The American College of Surgeons suggests that antimicrobial prophylaxis should be administered as a single dose before skin incision 8

Pitfalls to Avoid

  • The European Crohn's and Colitis Organisation recommends not abruptly stopping biologics before IBD surgery as this may trigger disease flare 1, 2
  • The American Gastroenterological Association suggests not continuing high-dose steroids if possible, as they increase risk of infectious complications and anastomotic leaks 3, 6
  • The European Crohn's and Colitis Organisation recommends not overlooking nutritional assessment in IBD patients, as malnutrition worsens clinical outcomes 3
  • The American Gastroenterological Association suggests not neglecting extended thromboprophylaxis in patients on tofacitinib 3