The session begins by outlining key considerations in high output stoma management, including: 1. Definitions 2. Causes 3. Consequences 4. Treatment approaches 5. Common clinical errors in short bowel management 1. Definition and Background A stoma is defined as a surgically formed opening from an internal organ to the external surface of the body. Gastrointestinal stomas include: • Jejunostomy • Ileostomy • Colostomy High output stoma is generally defined as output exceeding 1.5 litres per day, particularly when associated with fluid, sodium, and magnesium depletion. The presentation links high output states closely to short bowel syndrome, reviewing different types and critical bowel lengths associated with intestinal failure. ________________________________________ 2. Causes Causes of high output stoma include: • Short bowel syndrome • Postoperative adaptation phase • Infection • Sepsis • Obstruction • Medications • Inflammatory bowel disease The session highlights how bowel length, anatomy (jejunostomy vs ileostomy), and residual colon significantly affect output volume. ________________________________________ 3. Consequences Uncontrolled high output stoma can result in: • Dehydration • Sodium depletion • Magnesium deficiency • Acute kidney injury • Malnutrition • Hospital readmission The importance of recognising biochemical abnormalities early (particularly sodium and magnesium imbalance) is strongly emphasised. ________________________________________ 4. Management Strategies A. Oral Rehydration Therapy The presentation explains that simply increasing water intake is harmful. • Hypotonic fluids (<90 mmol/L sodium) worsen sodium loss. • Oral rehydration solutions with >90 mmol/L sodium promote sodium absorption but may have palatability challenges. Correct fluid prescription is a cornerstone of management. ________________________________________ B. Pharmacological Management Antimotility agents • Loperamide (high-dose specialist regimens) • Warning: risk of serious cardiac adverse events if misused Antisecretory agents • Proton pump inhibitors (first-line oral therapy) • IV pantoprazole if oral therapy inadequate • Somatostatin analogues (limited evidence in high output stomas; possibly more relevant in high fistula output) GLP-2 Analog • Teduglutide (stimulates intestinal growth) ________________________________________ C. Nutritional and Electrolyte Management • Optimising sodium balance • Monitoring and correcting electrolytes • Considering growth factors in selected patients • Prescribing an appropriate short bowel medication regimen ________________________________________ 5. Seven Common Mistakes in Short Bowel Management The presentation concludes with practical clinical warnings: 1. Telling patients to drink more 2. Mislabelling a jejunostomy as an ileostomy 3. Failing to recognise high output (>1.5L/day) 4. Not considering growth factor therapy 5. Missing magnesium and mineral deficiencies 6. Prescribing inadequate short bowel regimens 7. Assuming elemental diets are better absorbed These errors can directly worsen dehydration, renal function, and long-term outcomes.