Laparoscopic lavage/drainage as a bridge treatment for perforated diverticulitis with purulent peritonitis associated with an abdominal aortic aneurysm A retrospective case-control study

Abstract

AIM: Laparoscopic lavage /drainage (LALA) or surgical resection are both methods of treatment for perforated diverticulitis with purulent peritonitis (Hinchey Stage III). In case of associated abdominal aortic aneurysm (AAA), laparoscopic lavage/drainage could be an interesting bridge option to treat sepsis before endovascular exclusion of the aneurysm and resection of the sigmoid. We performed LALA as a bridge treatment of peritonitis before elective, staged endovascular exclusion of the aneurysm (EE) and elective resection of the colon.

MATERIAL AND METHODS: Seven patients presenting a perforated diverticulitis with purulent peritonitis (Hinchey III), associated with an uncomplicated AAA of a mean diameter of 6 cm, underwent LALA followed by staged EE and resection. They were retrospectively reviewed for a case-control study. The mean length of follow-up after completing all the procedures was 28 months. Primary endpoints were mortality and morbidity of each procedure, complications related to each procedure and to the untreated disease in the interval between each one of them, late outcome and complications related to each treatment method. As secondary endpoints, the mean length of surgery for resection, of stay in the hospital, of the interval between each procedure, and of time required for the treatment of both the diseases were considered.

RESULTS: Postoperative mortality was absent. Morbidity consisted of a sigmoido-vescical fistula 18 days after resolution of peritonitis and sepsis, not hindering EE,and a delayed healing of the surgical wound for access to the common femoral artery (28.6%). No complications of untreated disease in the interval between each procedure were observed. No late complications of both diseases occurred. The mean interval between LALA and EE,and between EE and resection was, respectively, 19 days and 18 days. Both the diseases were treated within a mean delay of 37 days after LALA (range, 24-61 days).

CONCLUSIONS: LALA, as a bridge treatment, before EE and resection, in patients presenting a perforated diverticulitis with purulent peritonitis, associated with an uncomplicated AAA, may be an effective treatment option.