Complex Fistula Disease in the Pelvic Malignancy Cancer Survivor Who Has Been Treated with Radiation

Abstract

Fistulation is a relatively uncommon complication resulting from the treatment of pelvic malignancy but one which is associated with significant patient morbidity. Fistulae complicating treatment with radiation, when compared to those arising from surgical management alone, are usually more difficult to treat by virtue of tissue ischaemia and fibrosis. They are also commonly associated with other complications resulting from the effect of radiation on adjacent organs such as the bladder, lower intestinal tract and pelvic bones as well as the frequent occurrence of intervening cavitation and chronic pelvic sepsis, all of which render these fistulae complex. Complex radiotherapy fistulae necessitate a change in the standard approach to fistula management. In a non-tertiary setting, they are often treated by urinary or bowel diversion (or both). Surgical correction of complex fistulae following radiotherapy is nonetheless possible in experienced hands but commonly requires extensive reconstructive procedures via an abdominoperineal approach with a protracted recovery and reduced potential for return to complete functional normality.