Sixty pediatric patients aged 5–15 years undergoing hand or forearm surgery were randomized to receive either a lateral sagittal block (n=30) or a costoclavicular block (n=30). The primary outcome of interest was block performance time, while secondary outcomes included needling time, imaging time, needle visibility, number of passes, sensory/motor block time, and postoperative pain scores. Outcomes were assessed up to 24 hours postoperatively. Overall, the results revealed that the costoclavicular block had a significantly shorter block performance time (p=0.005) and needling time (p=0.004) compared to the lateral sagittal block, with similar outcomes for other parameters. These findings suggest that the costoclavicular approach may be a more efficient alternative for pediatric infraclavicular block procedures.