• Hedayat Jafari, Mohammad Reza Ariaeifar, Yazdani CharatiJamshidJDepartment of Biostatistics, School of Health, Mazandaran University of Medical Sciences, Sari, Iran., Aria Soleimani, and Ebrahim Nasiri Formi.
• Department of Medical Surgical Nursing, School of Nursing and Midwifery, Traditional and Complementary Medicine Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
• Anesth Pain Med. 2016 Jun 1; 6 (3): e32108.

BackgroundTracheal intubation is an essential method of keeping the airway open in patients under general anesthesia. Sore throat is a prevalent complication after endotracheal intubation.ObjectivesThe aim of this study was to investigate the effect of green tea gargling on sore throat after coronary artery bypass grafting (CABG).Patients And MethodsThis was a single-blind, randomized clinical trial, in which 121 patients who had undergone CABG were divided into two groups: those who gargled distilled water and those who gargled a green tea solution. An hour after extubation, the patients of the intervention group were asked to gargle 30 cc of green tea, and the patients of the control group were asked to gargle 30 cc of distilled water, every 6 hours for up to 24 hours (four times per patient). A sore throat questionnaire was filled out 6, 12, and 24 hours after endotracheal extubation.ResultsThe results showed that there were no significant differences between the two groups with regard to patient age, sex, body mass index, smoking background, and duration of anesthesia. There was no significant difference between the two groups in terms of sore throat before the intervention (P = 0.461) and 6 hours after the intervention (P = 0.901). However, a significant difference was observed between the two groups in terms of sore throat 12 hours (P = 0.047) and 24 hours (P < 0.001) after removing the endotracheal tube.ConclusionsGargling a green tea solution, an anti-inflammatory, natural, and harmless substance, can reduce the pain of sore throat in patients after endotracheal extubation.

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