• Purnima Narasimhan, Lokesh Kashyap, V K Mohan, Mahesh Kumar Arora, Dilip Shende, Maddur Srinivas, Seema Kashyap, Sayan Nath, and Puneet Khanna.
• Department of Anaesthesiology, Pain Medicine and Critical Care, All India Institute of Medical Sciences, New Delhi, India.
• J Clin Anesth. 2019 Feb 1; 52: 105-110.

Study ObjectiveThis study was undertaken to compare the analgesic efficacy of ultrasound-guided single-shot caudal block with ultrasound-guided single-shot paravertebral block in children undergoing renal surgeries.DesignRandomised, interventional, blinded clinical trial.SettingOperating rooms of All India Institute of Medical Sciences, New Delhi, India.Patients50 children aged 2-10 years, of ASA status I/II, posted for elective renal surgeries.InterventionsThe children were randomised into two groups (Group C-caudal block, Group P-paravertebral block). After induction of general anesthesia, single-shot caudal or paravertebral block was performed under ultrasound guidance, with 0.2% ropivacaine with 1:200000 adrenaline.MeasurementsTime to first rescue analgesia, time to perform blocks, intraoperative and post-operative hemodynamics, post-operative FLACC scores, incidence of complications, parental satisfaction scores were recorded.Main ResultsChildren in Group P had significantly longer duration of analgesia (p < 0.0004) than Group C. Post-operative FLACC scores (p < 0.005) and analgesic requirements (p < 0.0004) were lower in Group P. The mean fentanyl requirement over 24 h in group P was 0.56 ± 0.82 μg/kg, compared to 1.8 ± 1.2 μg/kg in group C. Parents in Group P reported greater satisfaction (p < 0.02). No complications were seen in either of the groups.ConclusionThis study showed superior analgesia and parental satisfaction with single-shot paravertebral block in comparison to single-shot caudal block for renal surgeries in children. However, the block performance in children requires adequate expertise and practice.Copyright © 2018 Elsevier Inc. All rights reserved.

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