The Fluid Bridge Test Applied to Urethral Sphincter Function with Special Reference to the Male Urethra

Desmond, A. D.; Ramayya, G. R.; Cowell, T. K.

doi:10.1111/j.1464-410x.1985.tb07044.x

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…When the patient reported the sensation of a full bladder the urethral closure pressure profile was recorded in the sitting .~ position, using a computer- Diagram of position of catheter side holes for voiding ised system previously described (Desmond et al, 1985). This allowed the side holes of the urethral catheter to be accurately placed in the prostatic urethra, immediately proximal to the distal sphincter (Fig.…”

Section: Methodsmentioning

confidence: 99%

Quantification of Bladder Outlet Obstruction by Measurement of Urethral Opening Pressure Using an Adapted Fluid Bridge Test

Palmer¹,

Desmond²

1993

British Journal of Urology

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A new technique for measuring urethral opening pressure above the distal sphincter is described, based on the fluid bridge test. This test eliminates many of the inaccuracies produced when using standard pressure flow studies. Nineteen males were studied, 15 of whom had cystometric evidence of bladder outlet obstruction, the other 4 being unobstructed. The mean urethral opening pressure in the obstructed group was 69 cm H2O (range 44-124) and in the unobstructed group 19 cm H2O (range 16-22). The test is simple to perform and is not affected by muscular activity in the pelvic floor or the time lag between detrusor pressure and flow rate measurement.

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Section: Methodsmentioning

confidence: 99%

Quantification of Bladder Outlet Obstruction by Measurement of Urethral Opening Pressure Using an Adapted Fluid Bridge Test

Palmer¹,

Desmond²

1993

British Journal of Urology

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“…One of the main criticismsof the urethral pressure profile has been its inability to determine whether the urethral sphincter mechanisms are competent, incompetent or obstructive (Abrams, 1979). The adaptation of this investigation using computer technology to include the fluid bridge test (Desmond et al, 1985) and the micturitional urethral pressure profile (Desmond and Ramayya, 1987) has restored the credibility of fluid-perfused urethral profilometry and now offers a realistic alternative approach to assessing lower urinary tract dysfunction.…”

Section: Methodsmentioning

confidence: 99%

“…Using computer technology, we have designed a new fluid perfused system to perform this test (Desmond et al, 1985). The equipment consists of a motorised catheter withdrawal apparatus incorporating a displacement transducer based on the modifications of Harrison and Constable (1970), two pressure transducers, a microcomputer with disc drive and a dot matrix printer.…”

mentioning

confidence: 99%

Comparison of Pressure/Flow Studies with Micturitional Urethral Pressure Profiles in the Diagnosis of Urinary Outflow Obstruction

Desmond¹,

Ramayya²

1988

British Journal of Urology

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Computer technology has made it possible significantly to improve the technique and interpretation of the micturitional urethral pressure profile (MUPP). Thirty-nine patients with lower urinary tract symptoms have been investigated by this technique and the results compared with those of standard pressure/flow studies. A good correlation was found between the two methods of diagnosing outflow obstruction, but micturitional urethral pressure profiles offered practical advantages in patients who were elderly, immobile or who had severe involuntary voiding, and diagnostic advantages in patients with absent or poor detrusor contractility and those with equivocal pressure/flow studies.

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The Adaptation of Urethral Pressure Profiles to Detect Sphincter Incompetence and Sphincter Obstruction using a Microcomputer

Desmond

Ramayya

1987

Journal of Urology

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A new system for performing urethral pressure profiles, the fluid bridge test and micturitional urethral pressure profiles has been designed based on the use of a microcomputer. The method described has not only led to major improvement in the presentation and accuracy of these tests but for the first time urethral profilometry has been adapted to detect sphincter incompetence and obstruction in 1 simple method. The fluid bridge test was performed on 46 men and 18 women. The results suggested that this test was excellent for urodynamic evaluation of retrograde ejaculation, post-prostatectomy incontinence and vesicourethral neuropathy, and its value was confirmed in women with stress incontinence. Micturitional urethral pressure profiles were performed in 38 men and 2 women. Not only was this test found to correlate well with conventional methods of detecting obstruction but it was able to diagnose urinary outflow obstruction in patients with equivocal pressure/flow studies and patients with acontractile detrusors. It also allowed diagnosis of the site of obstruction in men with vesicourethral neuropathy without the need for radiological screening.

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The Fluid Bridge Test Applied to Urethral Sphincter Function with Special Reference to the Male Urethra

Cited by 6 publications

References 5 publications

Quantification of Bladder Outlet Obstruction by Measurement of Urethral Opening Pressure Using an Adapted Fluid Bridge Test

Quantification of Bladder Outlet Obstruction by Measurement of Urethral Opening Pressure Using an Adapted Fluid Bridge Test

Comparison of Pressure/Flow Studies with Micturitional Urethral Pressure Profiles in the Diagnosis of Urinary Outflow Obstruction

The Adaptation of Urethral Pressure Profiles to Detect Sphincter Incompetence and Sphincter Obstruction using a Microcomputer

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