Posterior urethra: Anterior urethra ratio in the evaluation of success following PUV ablation

Babu, Ramesh; Sekar, Hariharasudhan; Ramesh, C.

doi:10.1016/j.jpurol.2016.04.041

Cited by 11 publications

(19 citation statements)

References 19 publications

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“…Study regions included Mumbai, Chandigarh and Chennai, India, as well as Westmead, Australia. 1 , 2 , 3 , 4 In total, 338 patients with PUVs were assessed. The control group consisted 167 patients, who were age-matched in most studies.…”

Section: Resultsmentioning

confidence: 99%

“…The control group consisted 167 patients, who were age-matched in most studies. 1 , 2 , 3 , 4 The urethral ratios, for the control group, were calculated from VCUGs being done as part of the workup for urinary tract infections (UTIs). The mean urethral ratios in these children ranged from 1.04 to 1.73.…”

Section: Resultsmentioning

confidence: 99%

“…The median age for male children with PUVs ranged from 15 days to 13 months. 1 , 2 , 4 Menon et al 3 grouped patients into three groups on the basis of post-operative urethral ratios. Group A consisted of patients whose post-operative urethral ratios were <2 SD from the control group mean, group B between 2 and 3 SD and group C >3 SD from the control mean urethral ratio.…”

Section: Resultsmentioning

confidence: 99%

“…A single surgeon was used in three of the four studies to limit confounding factors. 1 , 3 , 4 Based on the surgeons’ preference and patient factors, the methods for ablation included the use of a resectoscope with cutting diathermy, cold knife or Bugbee electrode. 1 , 2 , 3 Mean pre-operative ablation ratios ranged from 3.342 to 12.269.…”

Section: Resultsmentioning

confidence: 99%

“…Since 2006, the use of the posterior:anterior urethral ratio (PUR) and gradient of change has proven to be beneficial. 1 , 2 , 3 , 4 The urethral ratio is calculated on standard VCUG images, as shown in Figures 1a–d . In this systematic review, we aimed to determine the ‘ideal’ ratio and assess the role of this ratio in predicting residual PUV in the follow-up of post-ablation male children.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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

Gaibie¹,

Mahomed²,

Petersen³

et al. 2020

South African Journal of Radiology

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Background 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. Objectives We aimed to review the role of the ‘ideal’ ratio on predicting residual PUV post-ablation. Methods 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. Results 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. Conclusion Although the precise cut-off ratio could not be clearly defined in this review, a urethral ratio less than a range of 2.2–3.5 has proven to be a beneficial predictor of ablation success and should thus be incorporated into standard VCUG reporting templates in the follow-up of PUVs in male children in resource-limited settings.

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