[Surgery of acute necrotizing pancreatitis. Active prolonged drainage in 157 consecutive patients].

Objectives: Conventional surgery and non-surgical methods have given unsatisfactory results for the treatment of acute necrotic pancreatitis. We therefore adoptive active prolonged drainage with the aim of controlling both acute enzyme toxicity and secondary necrosis.
Methods: One hundred fifty-seven patients with necrotic pancreatitis defined as the presence of extensive pancreatic or peripancreatic necrosis at laparotomy were divided into three groups according to previous care: group 1 no prior medical or surgical treatment (n = 46, 29%), group 2 prior medical but no surgical treatment (n = 48, 31%) and group 3 prior medical and surgical treatment (n = 63, 40%). Spiral drains were placed in the drainage grooves after necrosectomy and post-operative drainage with Mikulicz bags. Continuous lavage-drainage was then maintained for 45 days. Enteral nutrition was initiated on day 7 (mean) and increased progressively to 75 kcal/kg/day so parenteral nutrition could be interrupted 8 days later.
Results: There were 28 deaths (18%) including 6 in group 1, 10 in group 2 and 12 in group 3 (13, 21 and 19% respectively). Deaths were due to early multiple organ failure (n = 16), progressive degradation of the clinical situation (n = 8) and sudden death despite improvement (n = 4). Complications requiring re-operation occurred in 44 patients (28%). Among the 129 survivors, mean duration of hospitalization was 70 days including 60 days in the intensive care unit.
Conclusions: Compared with results from former series, active prolonged drainage appears to be more adapted to the natural history and anatomic presentation of acute necrotic pancreatitis.