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CC BY-NC-ND 4.0 · Eur J Pediatr Surg 2024; 34(04): 363-367
DOI: 10.1055/s-0043-1769797
Original Article

Effect of Prolonging the Duration of Stenting on Urethral Stricture in Proximal Hypospadias with Severe Curvature Repair: A Prospective Cohort Study

Guanglun Zhou
1   Department of Urology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
,
Man Jiang
2   Department of Infectious Diseases, Shenzhen Children's Hospital, Shenzhen, China
,
Xiaodong Liu
1   Department of Urology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
,
Jianchun Yin
1   Department of Urology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
,
Zhilin yang
1   Department of Urology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
,
Shouln Li
3   Department of Urology and Laboratory of Pelvic Floor Muscle Function, Shenzhen Children's Hospital, Guangdong, Shenzhen, China
,
Jinjun Chen
3   Department of Urology and Laboratory of Pelvic Floor Muscle Function, Shenzhen Children's Hospital, Guangdong, Shenzhen, China
› Author Affiliations
Funding The study received funding from the Natural Science Foundation of China (U1904208) and the Shenzhen Fund for Guangdong Provincial High-level Clinical Key specialties (SZXK035).
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Abstract

Introduction The aim of this study was to evaluate whether prolonged stenting reduces the risk of urethral stricture after proximal hypospadias (PH) with severe curvature (SC) repair.

Materials and Methods We prospectively studied a cohort of patients with PH with SC repair who underwent urethral plate transection and urethroplasty between January 2010 and December 2020. According to the duration of stenting, the patients were divided into 2-, 4-, and 6-week groups. Postoperative complications and time of urethral stricture occurrence were analyzed.

Results In total, 665 patients were included in the analysis. The overall incidence of complications was 26.6% (n = 177), including 42 cases of urethral strictures: 27 (64.3%) cases of urethral stricture occurred between 4 and 6 weeks after urethroplasty, 7 cases occurred between 7 weeks and 6 months after urethroplasty, 7 cases occurred more than 6 months after urethroplasty, and 1 case occurred at 3 weeks after urethroplasty. The incidence of urethral stricture in the 6-week group (1.8%) was significantly lower than that in the 4- (5.8%) and 2-week groups (10.9%) (p < 0.05).

Conclusion Prolonged stenting reduces the risk of urethral stricture in PH with SC repair. Four to six weeks after PH with SC repair may be the key period for the formation of early urethral strictures.

Keywords

stent - outcome - hypospadias - urethral stricture - curvature


Publication History

Received: 01 March 2023

Accepted: 04 May 2023

Article published online:
19 June 2023

© 2023. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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