Impact of hospital transfer on testicular torsion outcomes: A systematic review and meta-analysis.
2021
INTRODUCTION Testicular torsion is an emergent condition requiring prompt treatment. Previous studies have suggested transfer of pediatric testicular torsion cases may be detrimental to patient outcomes. Findings have not reached statistical significance. No study has quantitatively analyzed all literature reporting outcomes for transferred torsion patients. The aim of this study was to elucidate the impact of hospital transfer on pediatric testicular torsion outcomes through a systematic review and meta-analysis. METHODS A predefined study protocol registered with PROSPERO was developed according to PRISMA. A comprehensive literature review of articles investigating outcomes for pediatric testicular torsion for transferred and non-transferred (treated "directly" at presentation institution) patients with orchiectomy as the primary outcome was conducted by systematically searching PubMed and Embase. Potential studies were screened against a predefined study protocol. Meta-analysis using a random effects model with transferred status as the "intervention" was performed using Review Manager 5.3. RESULTS Of 18 eligible studies, 9 retrospective studies comprised of 2564 patients (532 transferred and 2032 direct) were suitable for quantitative analysis. Main analysis showed transfer status does not have a significant effect on torsion outcomes (RR 0.96 [95% CI 0.78-1.17]; I2 = 44%). Subgroup analysis for torsion patients presenting within 24 h of symptom onset shows patients who are transferred to another facility for management are more likely to undergo orchiectomy than those treated at their presenting institution (RR 0.35 [95% CI 0.24-0.51]; I2 = 4%). CONCLUSIONS In this meta-analysis, hospital transfer does not affect orchiectomy rate in pediatric patients with testicular torsion when pooling data from all presentation timeframes. Subgroup analysis of patients presenting with testicular torsion in an acute setting (<24 h of symptom onset) suggests the delay associated with hospital transfer has a deleterious effect on testicular viability.
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