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ORIGINAL ARTICLE
Year : 2016  |  Volume : 32  |  Issue : 2  |  Page : 168-171

Effect of magnesium sulfate nebulization on the incidence of postoperative sore throat


Department of Anaesthesiology and Critical Care, Nizam's Institute of Medical Sciences, Hyderabad, Telangana, India

Correspondence Address:
Monu Yadav
Department of Anaesthesiology and Critical Care, Nizam's Institute of Medical Sciences, Hyderabad, Telangana
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-9185.173367

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Background: Postoperative sore throat (POST) is a well-recognized complication after general anesthesia (GA). Numerous nonpharmacological and pharmacological measures have been used for attenuating POST with variable success. Aims and Objectives: The present study was conducted to compare the efficiency of preoperative nebulization of normal saline and magnesium sulfate in reducing the incidence of POST following GA. Materials and Methods: Following institutional ethical committee approval and written informed consent, a prospective randomized double-blinded study was conducted in 100 cases divided into two equal groups. Patients included in the study were of either gender belonging to American Society of Anesthesiologist (ASA) status 1 or 2 undergoing elective surgery of approximately 2 h or more duration requiring tracheal intubation. Patients in Group A are nebulized with 3 ml of normal saline and the patients in Group B are nebulized with 3 ml of 225 mg isotonic nebulized magnesium sulfate for 15 min, 5 min before induction of anesthesia. The incidence of POST at rest and on swallowing and any undue complaints at 0, 2, 4, and 24 h in the postoperative period are evaluated. Results: There is no significant difference in POST at rest during 0th, 2nd and 4th h between normal saline and MgSO4. Significant difference is seen at 24th h, where MgSO4lessens POST. There is no significant difference in POST “on swallowing” during 0th and 2nd h between normal saline and MgSO4. Significant difference is seen at 4th h, where MgSO4has been shown to lessen POST. Conclusions: MgSO4significantly reduces the incidence of POST compared to normal saline.


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