Can the posterior:anterior urethral ratio on voiding cystourethrogram be used as a reliable predictor of successful posterior urethral valve ablation in male children?

SA Journal of Radiology
Zakiyah GaibieAhmed Adam

Abstract

The role of the voiding cystourethrogram (VCUG) in the follow-up of children with posterior urethral valves (PUVs) post-ablation has been considered a standard practice. The urethral ratio and gradient of change have proven to be useful. We aimed to review the role of the 'ideal' ratio on predicting residual PUV post-ablation. A systematic review of the PubMed, SCOPUS and Web of Science databases was performed (April 2019). The search terms included 'Urethral Ratio and Posterior urethral valve ablation'. All cited reference lists were further evaluated for additional inclusive studies. Eleven studies were identified, of which nine were relevant to the topic. Case reports, comments and adult and animal studies were excluded, leaving four studies for critical review. In total, 338 patients were assessed. The control group consisted of 167 age-matched, male children. Study regions included India and Australia. The ages ranged from 15 days to 3.4 years. Ablation methods included the use of a resectoscope with cutting diathermy, cold knife or Bugbee electrode. The mean urethral ratios in the control group ranged from 1.04 to 1.73. The suggested predictive urethral cut-off ratios recommended include 2.2 (p = 0.001), 2.5-3 and 3.5. Al...Continue Reading

References

Oct 10, 2003·Clinics in Perinatology·Sailesh Kumar, Nicholas M Fisk
Jun 7, 2006·The Journal of Urology·O Bani HaniG H H Smith
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Mar 1, 2012·Journal of Pediatric Urology·Tayfun OktarOrhan Ziylan
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Apr 10, 2016·International Journal of Cardiology·Kenan YaltaErtan Yetkin
Sep 6, 2018·South African Medical Journal = Suid-Afrikaanse Tydskrif Vir Geneeskunde·K L PetersenU K Kala

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