Penetrating colonic trauma and damage control surgery: Anastomosis or stoma?

BACKGROUND The management of colon injuries in damage control surgery (DCS) remains controversial. METHODS A retrospective study investigating outcomes of penetrating colonic trauma in patients who survived beyond the initial repeat laparotomy (IRL) after DCS was performed. Patients over 18 years with penetrating colon injury and who underwent DCS from 2012 to 2020 were included from our electronic trauma registry. Demographic data, admission physiology and Injury Severity Score (ISS) were reviewed. Patients were classified into three groups: primary repair of non-destructive injuries at DCL, delayed anastomosis of destructive injuries at IRL and diversion of destructive injuries at IRL. Outcomes observed included leak rates, length of intensive care unit stay, length of hospital stay, morbidities, mortality and colon-related mortality. RESULTS Out of 584 patients with penetrating colonic trauma, 89 (15%) underwent DCS. After exclusions, 74 patients were analysed. Mean age was 32.8 years (SD 12.5); 67 (91%) were male. Mechanism of injury was gunshot in 63 (85%) and stab 11 (15%) patients. Seventeen patients underwent primary repair at DCS, of which one leaked. Twenty patients underwent delayed anastomosis at IRL. Of these, five (25%) developed leaks. Mortality was significantly higher for those with an anastomotic leak compared to those without (p < 0.001). Thirty-seven patients were diverted at IRL. Overall mortality (p = 0.622) and colon-related mortality (p = 0.592) were not significantly different across groups. CONCLUSION Delayed anastomosis at IRL following DCL was associated with a leak rate of 25% in this study. When anastomotic leak did occur, it was associated with significant mortality. Delayed anastomosis should only be undertaken in highly selected patients.