Results:Reasons for reoperation were gastroenteric hemorrhage in 4,intestinal obstruction in 5,abdominal cavity hemorrhage in 1,remnant infection in 5,diagnostic errors in 4.

• 结果：再手术因消化道出血4例、肠梗阻5例、腹腔内出血1例，腹腔残余感染5例及误诊4例。