Clinical Insights: Focus on High-Output Ileostomy
This month, Corstrata's Clinical Insights turns to one of the more complex areas of ostomy care: High-Output Ileostomy (HOI). HOI is an ileostomy that produces excessive effluent, creating risk for dehydration, electrolyte imbalances, malnutrition, and potential renal injury. While absolute cutoffs vary, HOI is commonly defined as stoma output greater than 1,000–1,500 mL/day for 24–48 hours or more, or output that stays consistently above a patient's normal baseline along with symptomatic signs such as dehydration, weight loss, or renal impairment.

What We See: A Patient Example
In a recent Home Health live ostomy visit, a 47-year-old female with a recent ileostomy presented with frequent, watery output exceeding 1,500 mL/day for several days, along with worsening dehydration symptoms. Cases like this challenge the pouching system's containment and adherence, often leading to both peristomal skin complications and systemic effects — including dehydration signs, reduced urine output, electrolyte disturbances, acute kidney injury, fatigue and dizziness, weight loss, and stomal leakage.

Goals of Management
Restore and maintain effective fluid status and electrolyte balance to prevent or treat acute kidney injury
Identify and treat reversible causes — obstruction, infection, medications, dietary factors
Prevent acute readmissions through patient education on oral hydration replacement and outpatient monitoring
General Recommendations
Assessment and monitoring: Measure and record ostomy output daily (volume and consistency), monitor weight and fluid intake/output, review medications for offending agents (laxatives, prokinetics, metformin), investigate underlying causes, and check electrolytes and renal function.

Immediate management for acute/high-risk cases: Confirm and document output volume for 24–48 hours, pursue prompt fluid resuscitation (which may require an ER visit), avoid replacing losses with hypotonic fluids alone, and use oral rehydration solutions (ORS) for ongoing losses.

Dietary adjustments: Small, frequent meals; avoid high-fiber foods; limit hypotonic and sugary drinks; avoid alcohol and caffeine; liberalize salt intake when appropriate. Encourage ORS with a target of 1–2 L/day (a simple 1 L recipe: 1 L water, 6 level tsp sugar, ½ level tsp / 2.5 g salt).

Medications: Loperamide is first-line, titrated up to 8–24 mg/day divided; codeine or diphenoxylate-atropine may be added if needed; octreotide is reserved for refractory cases under specialist care; PPIs may reduce gastric secretions; bile acid binders may help if bile acid malabsorption is suspected — all per provider guidance and orders.

Nutrition: Maintain enteral feeding where possible, involve a dietitian, consider parenteral nutrition for severe malnutrition, and monitor/supplement micronutrients. Note: restricting fluids can actually increase output due to compensatory mechanisms.

When to Escalate
Escalate to hospital care if there is ongoing high output despite oral measures, rising creatinine or electrolyte abnormalities, inability to tolerate ORS or diet, weight loss, or recurrent admissions.

Where Corstrata Fits
Corstrata's virtual ostomy specialists support complex HOI cases across the care continuum — Home Health & Hospice, Hospital at Home, Post-Acute & SNFs, and Acute Care Support — helping teams establish hydration and nutrition goals, optimize medication and dietary strategies, and prevent AKI and unplanned readmissions. Consults are available via store-and-forward image review or live video.

Consider a Corstrata consult when there's uncertainty about HOI etiology or management, signs of dehydration or AKI risk, persistent high output despite oral measures, peristomal skin breakdown, or recurrent HOI-related readmissions.