Comparison of Nebulized Ketamine with Nebulized Magnesium Sulfate for the Prevention of Postoperative Sore Throat

Abstract

Objective: To compare the effects of nebulized Ketamine versus nebulized Magnesium Sulfate to prevent post-operative sore throat.

Study Design: Quasi-Experimental Study.

Place and Duration of Study: Department of Anaesthesia, Combined Military Hospital, Rawalpindi Pakistan, from Sep 2020 to Feb 2021.

Methodology: A total of 154 patients who underwent general anaesthesia for elective procedures were randomly included in the study. These patients were divided into two equal Groups, i.e., Group-A (n=77), who received Magnesium Sulphate 250mg in 5ml saline and Group-B (n=77), who received Ketamine 50mg in 5ml saline, respectively. The effects of nebulized Ketamine versus nebulized Magnesium Sulfate to prevent post-operative sore throat, were observed in both the Groups.

Results: Both drugs were effective in the prevention of sore throat after extubation. Our study showed that Ketamine nebulization was more effective than Magnesium Sulfate nebulization in preventing sore throat. The frequency of sore throat in Group-A was 54.5% (42 out of 77 patients) as compared to 31.2% (24 out of 77 patients) in Group-B, which was statistically significant (p=0.003).

Conclusion: Post-operative sore throat is more effectively controlled with Ketamine as compared to Magnesium Sulfate