Urinary flow rate after TIP urethroplasty for hypospadias

Spinoit, Anne‐Françoise

doi:10.1038/nrurol.2015.192

Cited by 3 publications

(2 citation statements)

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“…Authors have reported that patients with hypospadias show abnormal (though subclinical) flow patterns postoperatively [ 4 17 18 ]. Some authors have also noted a frail correlation between flow and clinical symptoms [ 3 ]. Because of this, a single uroflowmetry test or single voiding video test cannot represent the long-term result of hypospadias surgery.…”

Section: Discussionmentioning

confidence: 99%

“…Urethral stricture is the second most common complication of hypospadias surgery [ 1 2 ]. In general, assessments of functional outcome are performed on the basis of patients' complaints about stream of micturition and the results of uroflowmetry tests after urethroplasty [ 3 ]. The measurement of urinary flow is a simple and noninvasive procedure that provides an objective evaluation of the urinary stream, and it has been used for a long time in urologic practice [ 4 5 ].…”

Section: Introductionmentioning

confidence: 99%

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Validity and reliability of a home-based, guardian-conducted video voiding test for voiding evaluation after hypospadias surgery

et al. 2020

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Purpose: To investigate the validity and reliability of a home-based, guardian-conducted video voiding test for assessing postoperative voiding function after hypospadias surgery. Materials and Methods: In a single center, patients who had undergone urethroplasty by a single surgeon and postoperative uroflowmetry and video voiding tests conducted between 2008 and 2016 were retrospectively reviewed. Urinary stream was categorized into five grades by three pediatric urologists in a blinded manner. The primary outcome was statistical correlation across raters as measured by Spearman correlation coefficient to validate the interpretation of the video voiding test. The secondary outcome was the reliability of the voiding video test compared with maximum urinary flow rate assessed by uroflowmetry. Results: Thirty-one patients with hypospadias were enrolled. The patients' average ages were 12.3±3.2 months (range, 8-21 months) and 42.8±3.9 months (range, 35-48 months) at the time of surgery and voiding video tests, respectively. Hypospadias was anterior, penile, and proximal in 1 (3.2%), 18 (58.1%), and 12 (38.7%) patients, respectively. The number of patients with each voiding stream grade was as follows: very poor, 4; poor, 4; fair, 13; good, 4; and very good, 6. All intraclass correlation coefficients of the stream grade among the three observers were >0.95. Correlation between the maximum flow rate obtained by use of conventional uroflowmetry and the video voiding stream grade was validated (rho 0.778, p<0.001). Conclusions: The home-based guardian-conducted video voiding test is easy to perform and the present results demonstrate its validity and reliability for assessing patients' post-urethroplasty voiding pattern.

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