Management of Enteric Microperforation

Initial Assessment and Stabilization

The World Journal of Emergency Surgery recommends obtaining a CT scan with IV contrast immediately to detect extraluminal gas, intra-abdominal fluid, and intestinal wall thickening that characterize microperforation 1, 2, 3
Measure white blood cell count and C-reactive protein to assess severity of inflammation, as suggested by Praxis Medical Insights 4, 2
Look specifically for imaging findings of intestinal wall thickening, pericolonic fat inflammation, extraluminal gas, and intra-abdominal fluid, according to the World Journal of Emergency Surgery 1

Conservative management may be appropriate only when patients meet ALL of the following criteria: hemodynamically stable with localized peritoneal signs, no diffuse peritonitis or frank peritoneal signs, minimal peritoneal contamination on imaging, and immunocompetent status, as stated by Clinical Gastroenterology and Hepatology and Praxis Medical Insights 6, 2, 7, 4
Proceed immediately to surgery if any of the following are present: hemodynamic instability or septic shock, diffuse peritonitis or frank peritoneal signs, immunocompromised status or transplant recipient, multiple perforations or severe peritoneal contamination, failure of conservative management within 24 hours, or delayed presentation with established peritonitis, according to Clinical Gastroenterology and Hepatology, Praxis Medical Insights, and World Journal of Emergency Surgery 6, 4, 2, 7

Primary repair for small perforations with minimal contamination and healthy tissue, or segmental resection with primary anastomosis for larger defects or unhealthy tissue, as recommended by the World Journal of Emergency Surgery 1, 7, 2
Resection with stoma creation (ileostomy) in critically ill patients or when severe inflammation creates friable tissue that precludes safe anastomosis, according to the World Journal of Emergency Surgery 1, 7

Piperacillin/tazobactam 6g/0.75g loading dose, then 4g/0.5g q6h or 16g/2g continuous infusion for adequate source control, as suggested by the World Journal of Emergency Surgery 1
Duration of antibiotics: 4 days if source control is adequate, according to the World Journal of Emergency Surgery 1
For critically ill or immunocompromised patients, consider piperacillin/tazobactam or eravacycline, with a duration of up to 7 days based on clinical conditions and inflammatory markers, as recommended by the World Journal of Emergency Surgery 1

Do not attempt endoscopic closure in hemodynamically unstable patients or those with delayed perforation and peritoneal signs, as stated by Clinical Gastroenterology and Hepatology 6
Do not delay surgery beyond 24 hours if conservative management fails, as delayed surgical intervention increases complication rates and hospital stays, according to Praxis Medical Insights 2, 3
Do not use prophylactic antibiotics beyond 24 hours (3 doses) in stable patients, as this increases the risk of C. difficile and multidrug-resistant organisms, as suggested by the World Journal of Emergency Surgery 5
Do not pursue conservative management in immunocompromised patients, regardless of perforation size, according to Praxis Medical Insights 4, 2