Overview
Gastrointestinal fistulas are abnormal connections between the gastrointestinal tract and another organ or skin surface, often complicating conditions like perforation, obstruction, or ischemia following emergency abdominal surgery 1.Diagnosis
Clinical presentation includes signs of infection, malnutrition, and fluid/electrolyte imbalances.
Imaging studies (CT, MRI) are crucial for localization and characterization of the fistula 1.
Endoscopy may be used to visualize and assess the fistula tract directly 1.Management
Surgical intervention: Primary repair or diversion (e.g., stomas) may be necessary depending on the complexity and underlying cause 1.
Medical management: Nutritional support (parenteral or enteral), antibiotics for infection, and management of fluid/electrolyte imbalances 1.
Antibiotics: Broad-spectrum initially, tailored based on culture results 1.
Antifibrolytics: Agents like octreotide may reduce fistula output in selected cases 1.Special Populations
Elderly: Higher risk of complications; individualized management considering comorbidities and functional status 1.
Comorbidities: Presence of significant comorbidities may influence surgical versus conservative management decisions 1.Key Recommendations
Utilize validated prognostic models (e.g., P-NELA) to assess risk and guide resource allocation in emergency abdominal surgery patients 1 (Evidence: Moderate).
Employ imaging (CT, MRI) for accurate diagnosis and characterization of gastrointestinal fistulas 1 (Evidence: Moderate).
Tailor management between surgical intervention and medical support based on fistula complexity and patient condition 1 (Evidence: Expert opinion).References
1 Hansted AK, Thorup SS, Ninh M, Møller MH, Burcharth J, Møller AM et al.. External Validation of the NELA Prognostic Model in Emergency Abdominal Surgery. Acta anaesthesiologica Scandinavica 2025. link