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Preoperative androgen therapy reduces odds of urethrocutaneous fistula in pediatric hypospadias repairAndrogen therapy may reduce complications in hypospadias surgery

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Key Takeaway
Consider preoperative androgen therapy to reduce urethrocutaneous fistula risk in pediatric hypospadias repair.

This network meta-analysis evaluated the efficacy of preoperative hormone therapies, specifically androgens and estrogens, in pediatric patients undergoing hypospadias repair. The analysis included a sample size of 715 patients to assess complications such as urethrocutaneous fistula, glans dehiscence, and meatal stenosis.

The primary finding indicates that androgen therapy significantly reduced the odds of urethrocutaneous fistula (OR 0.474; 95% CI: 0.241 to 0.934; P = 0.031). While a protective trend was noted for distal hypospadias specifically, it did not reach statistical significance (OR 0.613; 95% CI: 0.285 to 1.319). Conversely, no significant benefit was observed for androgen therapy regarding glans dehiscence or meatal stenosis.

Estrogen therapy did not significantly reduce any complications. The authors noted limitations including the inclusion of non-distal cohorts in the primary analysis, a lack of standardized protocols across studies, and the absence of long-term follow-up data. These findings suggest that while androgen therapy may offer specific benefits for certain fistula outcomes, its impact on other surgical complications remains unproven.

How this fits prior evidence

This finding addresses a gap in pharmacological management for hypospadias repair by evaluating hormone therapies. While previous coverage noted that interrupted suturing shows no significant difference from continuous suturing in TIP urethroplasty and that bibliometric trends do not equate to clinical efficacy, this meta-analysis provides specific evidence on the role of androgen therapy in reducing urethrocutaneous fistula odds (OR 0.474).

When children are born with hypospadias, they require surgery to correct the position of the urethral opening. Surgeons and parents often worry about potential complications following these procedures, such as a urethrocutaneous fistula (an abnormal connection between the urethra and the skin).

A large review of 715 pediatric patients looked at how hormone therapies might affect these outcomes. The findings showed that androgen therapy significantly reduced the odds of developing a urethrocutaneous fistula after surgery. While there was a similar trend for children with distal hypospadias, it did not reach statistical significance in that specific group.

However, the study found no significant benefit from androgens for other issues like glans dehiscence or meatal stenosis. Additionally, estrogen therapy did not show any reduction in complications. Because the data comes from a network meta-analysis of various studies, researchers note that more standardized protocols and longer follow-up periods are needed to confirm these results.

What this means for you:
Androgen therapy may lower the risk of urethrocutaneous fistulas after hypospadias surgery in children.

Common questions

Does androgen therapy help with all surgical complications?

No, it does not. While androgens were shown to reduce the odds of a urethrocutaneous fistula (an opening between the urethra and skin), they showed no significant benefit for other issues like glans dehiscence or meatal stenosis.

Is estrogen therapy effective for these complications?

No, the study found that estrogen therapy did not significantly reduce any complications following hypospadias surgery in the pediatric patients studied.

How much did androgens help with urethrocutaneous fistulas?

Androgen therapy was shown to reduce the odds of a urethrocutaneous fistula. For children with distal hypospadias, a protective trend was seen, but it did not reach statistical significance.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedJun 2026
View Original Abstract ↓
ObjectiveTo evaluate and compare the efficacy of different preoperative hormonal therapies for preventing postoperative complications after hypospadias repair in pediatric patients through a systematic review and network meta-analysis.MethodsPubMed, Web of Science, Cochrane Library, and CNKI were systematically searched (inception to March 15, 2026). Randomized controlled trials (RCTs) enrolling pediatric patients with hypospadias who received preoperative hormone therapy were included. Risk of bias was assessed using the Cochrane RoB 2 tool. The primary outcomes were postoperative urethrocutaneous fistula, glans dehiscence, and meatal stenosis. Bayesian network meta-analysis was performed using the gemtc package in R 4.3.1, and SUCRA was used to rank intervention efficacy. Sensitivity analysis excluding non-distal cohorts was performed to assess robustness.ResultsSix RCTs (715 patients) were included. Direct pairwise meta-analysis showed that androgen therapy reduced the odds of urethrocutaneous fistula (pooled OR = 0.474; 95% CI: 0.241–0.934; P = 0.031). In the sensitivity analysis restricted to distal hypospadias only, the protective trend persisted but did not reach statistical significance (OR = 0.613; 95% CI: 0.285–1.319). No significant benefit of androgen was observed for glans dehiscence or meatal stenosis. Estrogen did not significantly reduce any complication. SUCRA analysis identified androgen as the most probable effective intervention for fistula prevention.ConclusionPreoperative androgen therapy may reduce the odds of postoperative urethrocutaneous fistula in pediatric patients undergoing hypospadias repair, though this benefit was primarily observed in mixed-severity cohorts. No significant protective effect was demonstrated for glans dehiscence or meatal stenosis. Further high-quality RCTs with standardized protocols and long-term follow-up are warranted, particularly in distal hypospadias populations.Systematic Review Registrationhttps://www.crd.york.ac.uk/PROSPERO/view/CRD420261351057, identifier CRD420261351057.
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