Early and late urodynamic assessment of the orthotopic N‑shaped neobladder

Zhang,Zongliang; Qi,Haiyan; Zhou,Rongxiang; Jin,Xunbo

doi:10.3892/ol.2013.1502

Early and late urodynamic assessment of the orthotopic N‑shaped neobladder

Authors:
- Zongliang Zhang
- Haiyan Qi
- Rongxiang Zhou
- Xunbo Jin
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Affiliations: Department of Urology, Qingdao Municipal Hospital, Qingdao, Shandong 266071, P.R. China, School of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China
Published online on: July 30, 2013 https://doi.org/10.3892/ol.2013.1502
Pages: 1053-1056

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Abstract

The present study aimed to report the urodynamic data from 46 male patients who underwent an orthotopic N‑shaped neobladder replacement following a radical cystectomy during a 12‑month period and to provide urodynamic evidence for the improvement of this technique. A total of 46 consecutive male patients underwent a radical cystectomy and orthotopic N‑shaped neobladder substitution due to muscle‑invasive bladder cancer. Uroflowmetry, cystometry and urethral pressure profilometry were analyzed at 3‑12 months following the surgery. The mean pressure of the neobladders was <15 cm H2O at volumes of <400 ml and 22.4 cm H2O at 100% capacity at 6 months. The mean pressure of the contractions was <40 cm H2O at 6 months. The mean filling pressure following the surgery at 3 months was higher compared with that at 6 months. No difference was observed at the other time‑points. When comparing the 9‑ and 12‑month urodynamic characteristics, no significant changes were observed in the cystometric capacity. The mean post‑void residual (PVR) urine volume was 58 ml. A mean voiding peak of 16.2 ml/sec was obtained using the Valsalva maneuver. The daytime continence rate was 90% at 12 months while the night‑time continence rate was 60%.

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