PMID: 7536260May 1, 1995Paper

Variability of pressure-flow analysis parameters in repeated cystometry in patients with benign prostatic hyperplasia

The Journal of Urology
P F RosierH Wijkstra

Abstract

Urodynamic investigation becomes increasingly important in the diagnosis of bladder outflow obstruction in patients with benign prostatic hyperplasia. To date, different methods for evaluation of the pressure-flow relationship and quantification of the grade of obstruction are available. Models for pressure-flow analysis are briefly explained. The variability of the parameters is investigated by evaluation of 75 patients in whom 2 sequential voidings during urodynamic investigation were analyzed. The results showed that in 87% of these patients individual maximum flow differences of first and second voidings were less than 2 ml. per second. Individual detrusor pressure at maximum flow differences were less than 15 cm. water in 80% of these patients, while in 80% the intra-individual variation of the pressure-flow results was less than 15 cm. water for the minimal voiding pressure parameters (minimal urethral opening detrusor pressure and urethral resistance factor). For the pressure-flow parameter that defines the theoretical urethral lumen during voiding, the variation was less than 1.5 mm.2 in 84% of the patients. Patients with larger intra-individual differences are discussed. We concluded that the observed, aforementioned d...Continue Reading

Citations

May 25, 1999·Neurourology and Urodynamics·F HansenJ Nordling
Nov 9, 2000·Neurourology and Urodynamics·G S SonkeJ J de La Rosette
Dec 21, 2002·Urology·Roger R Dmochowski, David Staskin
May 9, 2003·Urology·Ries Kranse, Ron van Mastrigt
Nov 28, 2013·Urology·Kenneth W AngermeierChristopher M Gonzalez
Feb 13, 2007·European Urology·Hashim HashimUNKNOWN ARIB3004 Pressure Flow Study Group
Jan 8, 2011·International Journal of Clinical Practice·S A KaplanZ Guan
Jan 25, 2005·Annales de réadaptation et de médecine physique : revue scientifique de la Société française de rééducation fonctionnelle de réadaptation et de médecine physique·F A ValentiniP P Nelson
Jan 7, 2014·Neurourology and Urodynamics·Andrew GammieUNKNOWN International Continence Society Urodynamic Equipment Working Group
Jun 1, 2016·Neurourology and Urodynamics·Andrew F ColhounJohn E Speich
Sep 29, 2011·Neurourology and Urodynamics·C HardingA C Thorpe

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