Keywords
Paediatric Anesthesia
Perfusion Index
How to Cite
Abstract
Introduction: Caudal block is a common regional anesthesia technique in children, especially for lower abdominal surgeries. However, its success can be variable. The perfusion index (PI), a non-invasive parameter, has been suggested as a potential early indicator of block effectiveness.
Objectives: To evaluate whether the PI can serve as an early, non-invasive predictor of successful caudal block in pediatric patients and to compare hemodynamic parameters between those receiving general anesthesia with or without a caudal block.
Methodology: Sixty children undergoing elective lower abdominal surgery were divided into two groups of 30 each. Group C received a caudal block after general anesthesia, while Group G received general anesthesia alone. PI, heart rate (HR), and mean arterial pressure (MAP) were recorded at baseline and at 5, 10, 15, and 20 minutes after induction.
Results: Group C showed a significantly higher PI from 5 minutes post-induction compared to Group G. At T5, the mean PI was 5.63 ± 1.217 in Group C versus 4.57 ± 1.431 in Group G (P = 0.003), with similar trends at subsequent intervals (P < 0.05). Group C also demonstrated significantly lower HR and MAP, indicating better hemodynamic stability.
Conclusion: The perfusion index is an early and reliable indicator of caudal block success in pediatric patients. Its routine monitoring may enhance clinical assessment and support timely anesthetic decision-making.
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