Comparative study of urodynamic tests after AMS 800 and ZSI 375 insertion

Study design:Retrospective, non-randomised, single-centre study.Objectives:Comparative study of urodynamic tests in patients presenting social continence after AMS 800 or ZSI 375 insertion.Materials and methods:Study was open to patients with social continence, implanted with AMS 800 or ZSI 375. Vesical pressure (VP), urethral functional length (FL), maximal urethral pressure (MUP), maximal urethral closure pressure (MUCP), maximal urinary flow rate (Qmax) were registered with standard urodynamic equipment.Results:From March 2012 to September 2014, 27 male patients with AMS 800 and 28 with ZSI 375 were recruited. In the AMS 800 group mean VP was 25.03 cmH2O (range 13-47), mean FL 31.96 mm (range 20-52), mean MUCP 88.29 cmH2O (range 32-160), mean MUP 119.55 cmH2O (range 77-180), mean Qmax 22.86 mL/s (range 5.6-54.6). In the ZSI 375 group, mean VP was 24.89 cmH2O (range 6-40), mean FL 30.53 mm (range 12-87), mean MUCP 70.11 cmH2O (range 38-108), mean MUP 99.89 cm H2O (range 63-134), and mean Qmax 19.25 mL/s...