複雑性虫垂炎（complex appendicitis）とは？

壊死、穿孔、膿瘍、化膿性腹膜炎を合併する虫垂炎

complex appendicitis, which is defined as appendicitis with necrosis, perforation, abscess, or purulent peritonitis

2 days versus 5 days of postoperative antibiotics for complex appendicitis: a pragmatic, open-label, multicentre, non-inferiority randomised trial. Lancet. January 17, 2023