Aim: As capsular perforation is still regarded as one of complications of transurethral prostatectomy, the aim of this study was to compare the properties in penetrating capsular tissue of transurethral plasmakinetic resection (PKRP) and transurethral resection of the prostate (TURP).
Methods: Isolated normal saline-perfused porcine kidneys were used to determine the penetrating capsule properties of PKRP and TURP. We quantified and compared the time of cutting through renal surface during different procedures.
Results: The time of perforating renal capsula induced by PKRP was longer than that by TURP (p < 0.05). As soon as the operator activated footswitch, the renal capsula was cut through by the monopolar loop. The duration was always less than 1 s in the TURP group, although sometimes the plasma-loop could not penetrate the velamen (15/40). The time of penetrating the renal surface with capsula induced by PKRP was longer than that without capsula (p < 0.05). The duration of penetrating the surface without capsula was always less than 1 s.
Conclusions: With the present ex vivo model, we provided evidence that it is more difficult to penetrate capsular tissue with PKRP compared to TURP.
(c) 2009 S. Karger AG, Basel.