Noninvasive assessment of bladder contractility in men

The Journal of Urology
Stuart L McIntoshRobert Pickard

Abstract

Preoperative assessment of detrusor function by pressure flow study (PFS) improves outcome from prostatectomy but is invasive and uncomfortable for the patient. We report on a large scale validation of a novel noninvasive assessment of detrusor contractility. A flexible cuff placed around the penis was inflated automatically during voiding until flow interruption. Cuff pressure at interruption (pcuff.int) reflects isovolumetric bladder pressure (pves.isv), a measure of detrusor contractility. For comparison 151 symptomatic men performed the cuff test with simultaneous PFS monitoring. Test/retest agreement was assessed in 91 subjects who performed a cuff test without PFS on 2 occasions. For the 117 (77%) subjects with an acceptable cuff pressure flow trace, Bland Altman analysis showed that pcuff.int overestimated pves.isv by a mean (s.d.) of 16.4 (27.5) cm H2O, predominantly due to the cuff being positioned below the bladder. For test/retest analysis 52 (57%) of the men who were able to attend twice provided acceptable cuff data on both occasions with a mean (s.d.) difference in pcuff.int of -3.3 (32.0) cm H2O, improving to 0.0 (20.3) cm H2O in a subgroup of 39 subjects who voided more than 150 ml. On questionnaire assessment 1...Continue Reading

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Sep 3, 2003·Neurourology and Urodynamics·Stuart McIntoshRobert Pickard

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Citations

May 27, 2009·Indian Journal of Urology : IJU : Journal of the Urological Society of India·Christopher HardingRobert Pickard
Sep 25, 2012·Progrès en urologie : journal de l'Association française d'urologie et de la Société française d'urologie·L BorriniG Amarenco
Dec 23, 2011·Neurourology and Urodynamics·Becky ClarksonMichael Drinnan
Aug 22, 2014·Current Opinion in Urology·Altaf Mangera, Christopher R Chapple
Dec 28, 2017·Investigative and Clinical Urology·Alan D Uren, Marcus J Drake
Nov 21, 2013·Current Opinion in Urology·Altaf Mangera, Christopher Chapple
Aug 23, 2018·Neurourology and Urodynamics·Christopher HardingAndrew Gammie
Oct 30, 2013·BJU International·Giovanni LoscoQuinten King

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