Objectives: To evaluate technical feasibility and oncologic and functional outcomes of three different surgical procedures of nerve-sparing radical cystectomy (NS-RC) for the treatment of organ-confined bladder cancer at a single referral centre.
Materials and methods: All consecutive cases of NS-RC carried out between 1997 and 2012 were retrospectively analysed. NS-RC included nerve-sparing cysto-vesicleprostatectomy (NS-CVP), capsule-sparing cystectomy (CS-C) and seminal-sparing cysto-prostatectomy (SS-CP). Peri-operative parameters and post-operative outcomes were analysed.
Results: Overall, 90 patients underwent NS-RC, 35 (38.9 %) of whom received a NS-CVP, while 36 (40 %) and 19 (21.1 %) underwent capsule CS-C and SS-CP, respectively. No difference was registered comparing oncologic outcomes of the three different techniques; however, two local recurrences after CS-C were attributed to the surgical technique. Complete post-operative daytime and night-time urinary continence (UC) at 24 and 48 months was achieved in 94.4 and 74.4 % and in 88.8 and 84.4 % of cases, respectively. CS-C showed both the best UC and sexual function preservation rate at early follow-up (24 months). Overall, a satisfactory post-operative erectile function (IIEF-5 ≥ 22) was proved in 57 (68.6 %) and 54 (65.0 %) patients at 24 and 48 months, respectively. Significant difference was found when comparing sexual function preservation rate of NS-CVP (28.5 %) to that of CS-C (91.6 %) and SS-CP (84.2 %).
Conclusion: NS-RC for male patients accounted for 7.4 % of overall radical cystectomy. To a limited extent of the selected organ-confined bladder cancers treated, the three different procedures analysed showed comparable results in terms of local recurrence and cancer-specific survival. Both CS-C and SS-CP procedures provided excellent functional outcomes when compared to original NS-CVP.
Keywords: Cancer-specific survival; Capsule sparing; Intrafascial prostatectomy; Nerve sparing; Radical cystectomy; Sexual function; Urinary incontinence.