Postoperative abdominal complications of gastric and colorectal cancer surgeries in China: a multicentered prospective registry-based cohort study

Surgical quality is critical in cancer treatment,as it not only determines the radical resection of the primary tumor but also allows expedited postoperative recovery and early continuation of adjuvant therapy.Postoperative complications are valuable met-rics for assessing surgical quality.In gastric and colorectal cancer surgeries,postoperative complications substantially postpone patients'recovery and,in extreme cases,pose life-threatening risks[1].To reduce postoperative mortality and complications,interna-tional medical infrastructure has seen a rise in the number of national surgical databases,such as the American College of Surgeons-National Surgical Quality Improvement Program(ACS-NSQIP),Dutch Institute of Clinical Auditing(DICA),and the Japa-nese National Clinical Database(NCD)programs[2-5].