Caudal epidural block versus ultrasound-guided dorsal penile nerve block for pediatric distal hypospadias surgery: A prospective, observational study.

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The surgery of hypospadias is very painful in the postoperative period and requires long-term analgesia. A dorsal penile nerve block (DPNB) and caudal epidural block (CEB) are commonly used regional anesthesia techniques for postoperative pain control.The primary aim of the prospective, observational study was to use the duration until the first postoperative analgesic requirement after two different block techniques to compare the analgesic effect. The secondary aims were to compare the two methods for postoperative Children’s Hospital Eastern Ontario Pain Scale (CHEOPS) scores, complications and parental satisfaction level.This study was conducted with male patients aged 1-5 years in the ASA I-II group, who were scheduled for hypospadias surgery. A CEB or ultrasound (US)-guided DPNB with the in-plane technique was administered under general anesthesia before the operation. Postoperative analgesic need, postoperative pain, complications and parental satisfaction were noted. STROBE checklist was followed for reporting.The study was conducted with 26 patients in total, divided into 13 patients receiving CEB and 13 patients receiving DPNB. The mean CHEOPS score (p = 0.003) and 12th hour CHEOPS score (p = 0.003) were statistically significantly higher in the CEB group than the DPNB group. The need for additional postoperative analgesia was higher in the CEB group than the DPNB group (p 

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