Complications and quality of life of ileal conduit, orthotopic neobladder and ureterocutaneostomy. systematic review of reports using the Clavien-Dindo Classification

InTroDUcTion: radical cystectomy (rc) and urinary diversion (UD) are two steps of the same surgical procedure involving likely complications and important impact on quality of life (Qol). The literature was reviewed to identify recent studies reporting UDs complications occurred 90 days after surgery and graded by Clavien-Dindo Classification System (ccS). eviDence acQUiSiTion: a comprehensive systematic Medline search was performed in PubMed/Medline, embase and Scopus databases to identify reports published in english starting from 2013 using key words related to review outcome (i.e. neobladder, ileal conduct, ureterocutaneostomy, cystectomy, QoL). Complications were defined as minor or major whether the CCS grade was ≤2 or ≥3, respectively. Then, manuscripts references were screened to identify unfounded studies. only studies using ccS to report surgical complications were considered. eviDence SYnTHeSiS: retrieved studies were reported according to two main items of complications and Qol. About UDs complications, fourteen studies were identified incorporating overall 4436 patients. Up to 50% of patients experienced at least one low-grade complications (CCS≤2) requiring pharmacological treatment to be healed. On the other hand, high-grade complications (CCS≥3) occurred in 0.7-42% of cases and required surgical interventions (CCS 3a and 3b) or life support (CCS=4). Finally, mortality (CCS=5) rated between 0.4-7%. Regarding QoL, six studies were analyzed with overall 445 patients. Most of them were retrospective and showed conflicting results whether the external UDs were better than neobladder in term of impact on Qol. conclUSionS: The use of a standardized system such as ccS improves analyses of literature. However, rigorous patient selection for UD type makes unable a randomized comparison between UDs in terms of complications and Qol impact.