Transmural Pressure of the Urinary Bladder Wall

Bjerle, Per

doi:10.1111/j.1748-1716.1974.tb05769.x

Cited by 8 publications

(7 citation statements)

References 17 publications

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“…Bjerle, 1974). It has been noted by several investigators, using different techniques, that the bladder pressure rises on standing (Lapides, Ajemian, Stewart, Lichtwardt & Breakey, 1960;Warrell, Watson & Shelley, 1965;Toews, 1967).…”

Section: Discussionmentioning

confidence: 94%

The Effect of Changes of Posture on the Urethral Closure Pressure in Healthy Women

Henriksson¹,

Ulmsten²,

Andersson³

1977

Scandinavian Journal of Urology and Nephrology

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The effect of changes of posture on hydrodynamic parameters considered important for the maintenance of urinary continence was investigated in 14 healthy women. The subjects were investigated in the supine and erect positions using a previously described technique for simultaneous urethrocystometry, including recording of the urethral pressure profile. It was found that a change from the supine to the standing position increased the maximum intravesical pressure from a mean value of 13 mmHg to 22 mmHg. There was a simultaneous increase in the maximum intra-urethral pressure from a mean of 66 mmHg to 82 mmHg. As a consequence, the urethral closure pressure increased from a mean of 53 mmHg to 60 mmHg. The functional length of the urethra increased from 25 mm to 28 mm, and the absolute length from 28 mm to 36 mm. It is concluded that in healthy women, a change from the supine to the standing position causes a rise in the maximum intra-urethral pressure and an increase in the absolute and functional lengths of the urethra. These effects counteract the simultaneous increase in bladder pressure, and can be regarded as compensatory mechanisms for the maintenance of continence.

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Section: Discussionmentioning

confidence: 94%

The Effect of Changes of Posture on the Urethral Closure Pressure in Healthy Women

Henriksson¹,

Ulmsten²,

Andersson³

1977

Scandinavian Journal of Urology and Nephrology

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“…However, the basic work on transmural bladder pressure by Bjerle (1974) was confined to bladder volumes below 300 ml in healthy young volunteers; no anaesthetics were used and the filling rate was 50 ml/min, circumstances very different from those found during TURP. Intravesical pressure (and its relation to the pressure in the pelvic veins) in the decentralised bladder has already been studied (HultCn et al, 1984b;HultCn and Hjertberg, 1984), but the changes in transmural pressure under the same conditions have yet to be described.…”

Section: Accepted For Publication 4 April 1989mentioning

confidence: 99%

“…The pressure within this compartment is influenced by the pressure exerted by the joint cavities of the bladder and the prostatic fossa (operating field). Once again, the main factor governing compliance is the bladder wall itself rather than the stiff, noncompliant residual prostatic tissue and capsule.In cystometry, both intravesical and perivesical pressure are monitored in order to calculate the detrusor pressure-or the transmural bladder pressure-by subtracting the perivesical from the intravesical pressure (Bjerle, 1974). We believe that this transmural bladder pressure is identical to the excessive pressure in the bladder necessary for EVA.However, the basic work on transmural bladder 39…”

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confidence: 99%

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Extravascular Absorption of Irrigating Fluid during TURP. The Role of Transmural Bladder Pressure as the Driving Pressure Gradient

Hultén

Sundström

1990

British Journal of Urology

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The critical intravesical pressure range for extravascular absorption of irrigating fluid (EVA) during transurethral resection of the prostate (TURP) is determined by the pressure in the perivesical tissue. This means that the transmural bladder pressure (detrusor pressure), calculated by deducting perivesical pressure from intravesical pressure during cystometry, is the pressure gradient behind EVA. The transmural pressure in 6 patients undergoing TURP has been studied both before and during epidural anaesthesia, using both conventional medium-fast fill cystometry and "free-flow" cystometry through the resectoscope. Epidural block does not influence the transmural pressure response on filling the bladder and neither does the type of infusion. A positive transmural pressure, and thereby a pressure gradient for EVA, exists already during the very early phase of bladder filling. Incomplete perforation of the prostatic capsule and clotting, as well as the accumulation of irrigating fluid in the perivesical tissue, probably moderate the rate of absorption.

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“…In normal subjects the perivesical pressure increases during filling of the bladder (7). Whether the perivesical tissue has an increased rigidity Acra med.…”

Section: Discussionmentioning

confidence: 99%

Studies of Urinary Bladder Dysfunction in Amyloidosis With Polyneuropathy

Andersson

Bjerle

1975

Journal of Internal Medicine

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Eight male patients with amyloid polyneuropathy, seven of whom had symptoms of dysfunction of the urinary bladder, were studied by cystometry and micturition analysis and compared with eight male controls. Most of the patients with amyloidosis had an increased bladder capacity. The need to micturate was reduced, and urine retention was common. In most of them detrusor function could not be demonstrated. The maximal flow rate was usually diminished and the resistance to flow elevated. In some of the patients there was increased rigidity of the bladder wall.

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Transmural Pressure of the Urinary Bladder Wall

Cited by 8 publications

References 17 publications

The Effect of Changes of Posture on the Urethral Closure Pressure in Healthy Women

The Effect of Changes of Posture on the Urethral Closure Pressure in Healthy Women

Extravascular Absorption of Irrigating Fluid during TURP. The Role of Transmural Bladder Pressure as the Driving Pressure Gradient

Studies of Urinary Bladder Dysfunction in Amyloidosis With Polyneuropathy

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