2.2. Cystometry investigation
All the protocol of cystometry complied with the guidelines of the
International Continence Society (ICS)17. Briefly, a
multi-channel urodynamic study, in which warm saline (37 °C) was
continuously infused (80 ml/min) into the bladder of patients, was
recorded (MMS UD-200, Medical Measurement System, Enschede, Netherlands)
and analyzed (Biopac MP36, Biopac Systems, Santa Barbra, US) using
data-acquisition systems. The detrusor pressure (Pdet), abdominal
pressure (Pabd), vesical pressure (Pves), urethral flow (Flow), infused
volume (Vinf), voided volume (Vvod), and intra-vesical volume (Vive)
were online recorded.