Work

Prospective observational study to compare perfusion index and cremasteric reflex as indicators of onset of caudal block

Year: 2026

Type: article

Abstract: Objectives: The aim of this study was to compare the efficacy of perfusion index (PI) and cremasteric reflex (CR) in assessing the onset of caudal block. Material and Methods: Using convenience sampling, eligible participants as per the inclusion and exclusion criteria were enrolled. Baseline and post-sedation readings of mean arterial pressure (MAP), PI, and CR were taken, standard general anesthesia protocol was followed, and a caudal block was given. MAP, CR, and PI values were monitored and documented at 1 min intervals for 10 min. The loss of CR and doubling time from baseline PI were considered as the onset of caudal block, and the time required was compared. Results: The mean time to loss of CR and time required for PI to double were 7.17 min and 4.04 min, respectively. The average time of PI doubled post-caudal was significantly lower than the time to loss of CR ( p < 0.05). Conclusion: PI is a more efficacious, non-invasive, objective, and a feasible parameter that gives an earlier indication of caudal block onset. Change in MAP is not proven to be a reliable indicator of the onset of caudal block.

Source: Adesh University Journal of Medical Sciences & Research

DOI: 10.25259/aujmsr_45_2025

Authors: Anish Kowstubh, Kalyani Nilesh Patil, Madhuri Sanjeev Madhekar

Institution: Bharati Vidyapeeth (Deemed to be University)

Language: English

Topic: Anesthesia and Pain Management

Subfield: Surgery

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: hybrid

OpenAlex ID: W7127107449