Infected pancreatic necrosis (IPN), the most severe form of acute pancreatitis, is responsible for most cases of pancreatitis-related morbidity and mortality. Since 1986, 220 patients with IPN have been treated. The surgical treatment was performed on average 18.5 days (range, 8-25 days) after the onset of acute pancreatitis and consisted of wide-ranging necrosectomy, combined with widespread drainage and continuous lavage. In 108 of the 220 cases, some other surgical intervention (distal pancreatic resection, splenectomy, total pancreatectomy, cholecystectomy, colon resection, etc.) was also performed. Following surgery, the supportive therapy consisted of immunonutrition (glutamine and arginine supplementation) and modification of cytokine production with pentoxifylline and dexamethasone. Continuous lavage was applied for an average of 44.5 days (range, 21-95 days), with an average of 9.5 L (range, 5-20 L) of saline per day. The bacteriologic findings revealed mainly enteral bacteria, but Candida infection was also frequently detected (21%). Forty-eight patients (22%) had to undergo reoperation. The overall hospital mortality was 7.7% (17 patients died). In our experience, IPN responds well to adequate surgical treatment, continuous, longstanding widespread drainage and lavage, together with supportive therapy consisting of immunonutrition and modification of cytokine production, combined with adequate antibiotic and antifungal medication.
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