Journal of Clinical and Diagnostic Research, ISSN - 0973 - 709X

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Original article / research
Table of Contents - Year : 2016 | Month : September | Volume : 10 | Issue : 9 | Page : UC01 - UC04

Comparative Evaluation of Volatile Anaesthetic Agents for Attenuation of Venous Cannulation Pain: A Prospective, Randomized Controlled Study UC01-UC04

Vinit K. Srivastava, Pravavin K Das, Sujeet KS Gautam, Parineeta Jaisawal, Venkat N. Kadiyala, Sonal Rambhad

Correspondence
Dr. Vinit K. Srivastava,
Senior Consultant, Department of Anaesthesiology, Apollo Hospitals, Bilaspur-495006,
Chhattisgarh, India.
E-mail: drvinit75@gmail.com

Introduction: Topical application of volatile anaesthetic agents has been found to attenuate the response to a mechanical stimulus; however, this effect of volatile anaesthetic on perception of pain during venous cannulation is not known.

Aim: To compare the efficacy of topically administered volatile anaesthetic agents for attenuating venous cannulation pain.

Materials and Methods: This prospective, randomized, placebo controlled and double blind study was conducted on 120 patients, aged 20-60years. They were of American Society of Anaesthesiologists (ASA) I or II physical status, of either sex, planned for elective surgeries. These patients were randomized into 4 groups, of 30 each. Equipotent doses of halothane (1ml), isoflurane (1.5ml), sevoflurane (2.7ml) and sterile water (2.5ml; Control) were topically administered on the volar surface of forearm wrapped with cotton and aluminium foil; venous cannulation was performed with 18G intravenous cannula after 30 min. These patients were assessed for the incidence and severity of pain upon venous cannulation {visual analog scale (VAS), 0-100mm; 0 = no pain and 100 = worst imaginable pain}. Data were analysed by one-way ANOVA, Chi-square test and Kruskal-Wallis test. The p<0.05 was considered as significant.

Results: A significant reduction in the incidence of venous cannulation pain was observed in the halothane (79%) group as compared to control (100%; p<0.05), isoflurane (100%; p<0.05) and sevoflurane (100%; p<0.05) groups. The severity of venous cannulation pain as assessed by median (interquartile range, Q1-Q3). VAS scores was reduced in the halothane {10 (10-20); p<0.001}, isoflurane {20 (10-30); p<0.001} and sevoflurane {20 (20-30); p<0.001} groups as compared to the control group {40 (30-40)}; VAS score in the halothane group was significantly less as compared to isoflurane (p<0.05) and sevoflurane (p<0.05) groups.

Conclusion: Topical application of halothane is most effective in reducing incidence and severity of venous cannulation pain; however, topical application of isoflurane and sevoflurane decreases only the severity of venous cannulation pain.