Management of Contained Microperforation in Sigmoid Colon
Rationale for Contraindication
- The American Gastroenterological Association (AGA) recommends that patients with perforations should be surgically managed without any attempt at endoscopic closure if there are signs of peritonitis 1
- Patients with perforations, even contained ones, are at high risk for peritonitis if further manipulation occurs, which can lead to increased morbidity and mortality 1
- In cases where perforation or impending perforation of the colon is discovered, endoscopic procedures should be aborted immediately as they can worsen the condition 3, 2
Management Algorithm for Sigmoid Colon Microperforation
Initial Assessment
- Evaluate hemodynamic stability - unstable patients require immediate surgical intervention 1
- Assess for signs of peritonitis (abdominal tenderness, guarding, rebound tenderness) 4
- Obtain CT imaging with intravenous contrast to confirm the diagnosis and extent of perforation 5
Management Options Based on Clinical Presentation
- Urgent sigmoid resection is indicated in cases of perforation 2, 6
- Surgical options include: Sigmoid resection with end colostomy (Hartmann procedure) - preferred for non-viable colon or peritonitis 6
- Sigmoid resection with primary colorectal anastomosis - may be considered in selected stable patients 6
Important Considerations and Pitfalls
- A contained microperforation can rapidly progress to free perforation with further manipulation, leading to peritonitis and sepsis 1, 2
- Colonoscopy increases intraluminal pressure, which can convert a contained perforation into a free perforation 4
- Contrast enema studies are strictly contraindicated when perforation is suspected as they can worsen contamination 5