Vermeulen, J.

patient diverticulitis surgery disease diverticular disease procedure treatment peritoniti study hinchey diverticular resection mortality colon surgeon emergency surgery hospital reversal colorectal anastomosis laparoscopic complication postoperative stoma emergency sigmoid hartmann bowel lavage strategy morbidity injury group outcome table score management operation trial result laparoscopic lavage colostomy perforation factor bowel continuity leakage analysis rectum classification stage sigmoid diverticulitis hartmanns procedure survival wound infection drainage difference purulent vermeulen quality antibiotic postoperative complications hinchey score hp reversal technique ileostomy trauma netherland sigmoid resection closure number purulent peritonitis department severity faecal peritonitis experience american society restoration continuity postoperative mortality