Dynamics of the Ureterovesical Junction
The ureterovesical pressure profile (UVPP) and the dynamics of the urterovesical junction (UVJ) were analysed with prevesical and intraluminal perfusion pressure measurements, and with an intraluminal micro-pressure sensor catheter.
The reliability of the measuring techniques was evaluated with different pressure measuring catheters under varying conditions.
Prevesical and intraluminal perfusion pressure measurements with F8 or F5 flexible catheters, at high perfusion rates, and intermittent or low withdrawal velocity of the catheter, produced the highest reproducibility.
The dynamical factors and anatomical structures, which possibly contribute to, or influence the pressure phenomena within the UVJ, were evaluated by the principle of addition and elimination.
Besides a baseline pressure, the UVPP showed fast and slow pressure waves. The UVJ develops peristaltic activity by which it discharges fluid boli into the bladder. This UVJ peristalsis is responsible for the fast pressure waves in the UVPP.
The slow pressure waves represent the influence of detrusor activity upon urine transport through the UVJ, and reflect detrusor irritability.
The intravesical pressure in the bladder at bladder filling.
The detrusor activity in the unexpanded bladder.
The bladder wall stretch in the overdistended bladder.
The bladder wall stress and intravesical pressure in the small volume, low capacity bladder.
Similar pressure measurements in man seem to confirm these findings.
KeywordsCatheter Polyethylene Rubber Respiration Syringe
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- Blok C Venrooij GEPM van, Coolsaet BLRA (1982) Active urine transport through the ureterovesical junction. Abstract fourth meeting ISDU, Utrecht, The Netherlands, August 29-September 1Google Scholar
- Blok C, Riel MPJM van, Venrooij GEPM van, Coolsaet BLRA (1982) Artificial sphincter pressure versus bladder leaking pressure. Proceedings 2nd Joint Meeting ICS and UDS, Aachen, Federal Republic of Germany, August 3–September 31 pp 96–98Google Scholar
- Boyarski S, Labay P (1972) Ureteral dynamics. Williams & Wilkins, Baltimore LondonGoogle Scholar
- Coolsaet BLRA, Venrooij GEPM van, Blok C (1982a) The ureterovesical pressure profile. Abstracts 77th Annual Meeting of the AUA, Kansas City, May 16–20, 1982, p 180Google Scholar
- Elbadawi A (1972) Anatomy and function of the ureteral sheaths. J Urol 102:224–229Google Scholar
- Elbadawi A, Amaku EO, Frank IN (1969) Anatomy of the submucosal segment of the ureter. Read at the annual meeting of the Northeastern section of the AUA. Quebec City, Quebec, September 1969Google Scholar
- Hald T, Bradley WE (1982) The urinary bladder. Williams & Wilkins, Baltimore LondonGoogle Scholar
- Koff SA, Lapides J, Piazza DH (1979) The uninhibited bladder in children:a cause for urinary obstruction, infection and reflux. In:Hodson J, Kincaid-Smith P (eds) Reflux nephropathy. Masson, Paris New York Barcelona Milan, pp 161–170Google Scholar
- Leen GL, Fegetter JGW, Stobbart D (1982) The ureterovesical pressure profile: fact or fiction. Abstract fourth meeting ISDU, Utrecht, The Netherlands, August 29-September 1Google Scholar
- Rose DL, Constantinou CE, Sands JP, Govan DE (1971) Dynamics of the upper urinary tract:effects of changes in bladder pressure on ureteral peristalsis. J Urol 106:209–213Google Scholar
- Weiss RM, Biancani P (1981) Characteristics of normal and refluxing ureterovesical junctions. Abstract third meeting ISDU, Aarhus, Denmark, August 31-September 1Google Scholar
- Williams DI, Johnston JH (1982) Pediatric urology. Butterworth Scientific, LondonGoogle Scholar