Early versus delayed (interval) appendicectomy for the management of appendicular abscess and phlegmon: a systematic review and meta-analysis.

Emergency operation for appendicular abscess and phlegmon may lead to a higher rate of reported morbidity when compared with interval appendicectomy. Although emergency appendicectomy performed for appendicular abscess and phlegmon is a feasible and safe operative approach, it is associated with significantly increased operative time and unplanned bowel resection (ileocolic and right hemicolectomies) compared to interval appendicectomy.