Surgical options in acute diverticulitis: value of sigmoid resection in dealing with the septic focus.

The outcome of 78 patients hospitalized with acute diverticulitis was analysed to determine the indications for emergency operation and to examine the safety of sigmoid resection. Forty patients improved on medical therapy, but four relapsed soon after discharge. Forty-two (55%) patients had emergency operations for non-resolution of clinical sepsis (25), persistent symptoms or mass (14) and fistula (three). Operations performed were: sigmoid resection and primary anastomosis (23) with covering colostomy (six). Hartmann's operation (10), drainage with/without colostomy (seven) and right hemicolectomy (two). Findings at operation were: abscess (19), phlegmon (14), generalized peritonitis (six), colovesical fistula (three) and chronic diverticulitis (three). Complications included wound infections (six), respiratory complications (five) and one death. Six patients having drainage of the sigmoid inflammation alone as the first operation required subsequent resection, with prolonged and often complicated hospitalization. Minimal morbidity and shorter hospitalization were achieved when sigmoid resection was performed at the initial procedure.