直肠癌低位前切除术后吻合口瘘AnastomoticLeakageAfterLowAnteriorResectionForRectalCancer山东大学齐鲁医院1IntroductionAnastomoticleakage(AL)afteranteriorresectionoftherectumisaseriouscauseofmorbidityandmortality,withtheriskofapermanentstoma.Itmayalsobeassociatedwithanincreasedriskoflocalrecurrence.TheincidenceofclinicallysignificantleakageafterLARvariesbetween3%and21%,butisthoughttoaverage10%.Subclinicalanastomoticfailuremayoccurinupto51%ofpatients.Anastomoticleakageisafearedcomplication,resultinginapostoperativemortali