Abstract
PurposeThis study aimed to compare the effects of lavender and rosemary extracts on sore throat and hoarseness after endotracheal intubation in patients undergoing percutaneous nephrolithotomy. DesignRandomized clinical trial. MethodsThis study was conducted on 90 patients undergoing percutaneous nephrolithotomy at Bahonar Hospital in Kerman in 2021. The patients were selected by convenience sampling method and randomly assigned to three groups: lavender, rosemary, and control. After general anesthesia with endotracheal intubation, an anesthesiologist put sterile gauzes impregnated with 3 cc of rosemary and lavender extracts into patients’ throats in the intervention groups, while the control group received 3 cc of distilled water. After the surgery, the gauzes and tracheal tubes were removed and the patients were transferred to the postanesthesia care unit (PACU), their sore throat and hoarseness were measured and recorded during and 2 to 6 to 24 hours after recovery. A significance level of < .05 was considered. FindingsThe study results showed a significant difference in the severity of sore throat between the 3 groups 2, 6, and 24 hours after surgery; sore throat in the rosemary group and then in the lavender group was lower than that in the control group (P < .05). The results also indicated a significant difference in hoarseness intensity between the three groups 2 and 6 hours after surgery; hoarseness intensity in the rosemary and lavender groups was lower than that in the control group, but it was not different between 3 groups 24 hours after surgery (P < .05). ConclusionsRosemary and lavender extracts had a positive effect on sore throat and hoarseness. As these herbs cause no complications in patients and are available and inexpensive, further studies are necessary to confirm the use of these herbs during intubation.
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