Urodynamic patterns in infants with normal lower urinary tracts or primary vesico-ureteric reflux

British Journal of Urology
C K YeungP G Ransley

Abstract

To compare bladder function in infants with primary vesico-ureteric reflux (VUR) and those with normal lower urinary tracts. The study comprised 42 patients (36 males) with VUR (grades III to V) and 21 (16 males) without VUR (mean age in both groups, 6 months). Intravesical catheters were placed suprapubically under general anaesthesia and, after at least 24 h, natural-tilling urodynamics were monitored for three or more filling and voiding cycles. Various urodynamics patterns were defined: for infants without VUR these were either normal or normal-immature (discoordinated micturition) and none showed features indicating abnormal bladder function. By comparison, 24 of 42 infants with VUR showed abnormal urodynamic patterns (57%, 95% confidence interval 41% to 72%, P < 0.001). Seven (17%) were defined as unstable with small voided volumes, five (12%) had inadequate voiding dynamics, 10 (24%) showed a markedly dyssynergic pattern and two (5%) had obstructive patterns. The unstable, inadequate and obstructive patterns occurred only in boys. Detrusor activity during the filling phase occurred in 14 infants (13 boys) with VUR and in only one without VUR, when it was trivial. Post-void residual volumes of > 30% capacity were seen onl...Continue Reading

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Citations

Jan 5, 2005·Indian Journal of Pediatrics·S K ChowdharyC K Yeung
Dec 21, 2006·Pediatric Radiology·Vivian Yee-fong LeungConstantine Metreweli
Jun 11, 2008·International Journal of Adolescent Medicine and Health·Sarel Halachmi, Walid A Farhat
Jul 9, 2013·Pediatric Nephrology : Journal of the International Pediatric Nephrology Association·Adrian S WoolfWilliam G Newman
Mar 11, 2009·Neurourology and Urodynamics·Tuija T Lahdes-VasamaTeuvo L J Tammela
Dec 22, 2009·The Journal of Urology·Lars Henning OlsenTroels Munch Jørgensen
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Jan 5, 2014·European Journal of Pediatrics·Alexander Springer, Ramnath Subramaniam
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