Ultrasound-guided sacral multifidus plane block versus caudal epidural block for postoperative analgesia in pediatric hypospadias surgery: A randomized double-blind controlled trial.

PLoS One · 2026 · PMC13422836 · PMID 42531268

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a notable trendno p-value reported

However, a notable trend emerged: urinary retention occurred in two caudal patients (13.3%) and none in the SMPB group.

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