Pelvic exenteration, a surgical treatment option for locally advanced, primary and recurrent neoplasia

Pelvic exenteration (PE) is an extensive surgical procedure for locally advanced primary neoplasia (LAPN) or recurrent neoplasia (RN) that consists in the en bloc removal of the pelvic organs (rectum, internal genital organs and bladder) associated with pelvic lymph nodes. PE is classified into anterior, posterior and total, supra or infralevatorian approaches. Our aim was to evaluate the surgical procedure and the resection margins in correlation with postoperative complications and morbidity rates after PE in patients treated in a single surgical unit. The study group comprised patients diagnosed with different malignancies, surgically treated by using PE procedure, during 2012-2018. The cohort included 121 cases with LAPN (n=98, 80.99%) and RN (n=23, 19%), mostly female (n=114, 94.21%), with a mean age of 61.16 (33-85) years. LAPN had predominantly digestive (n=48, 49.98%) and gynecological (n=28, 28.57%) origins, while the majority of RN cases were cervical cancers (n=9, 39.13%). The univariate analysis showed that the gynecological origin of the tumor (p=0.02), urinary stoma (p=0.02) and posterior PE (PPE) (p=0.004) were significant prognostic factors for postoperative complications. After performing the multivariate analysis, only the gynecological origin (p=0.02) of the tumor and PPE (p=0.03) remained determining factors for postoperative complications. PE is a disabling surgical procedure associated with high postoperative mortality and morbidity, although it is often the only solution for advanced cases. The judicious selection of patients who can benefit from such extensive surgery is compulsory. Our study suggests that the gynecological origin of the tumor and PPE are key factors in postoperative complications.