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Randomized Controlled Trial
Effect of topical ropivacaine on the response to endotracheal tube during emergence from general anesthesia: a prospective randomized double-blind controlled study.
- Panpan Fang, Zhijun Zong, Yao Lu, Xiaoyu Han, and Xuesheng Liu.
- Department of Anesthesiology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui Province, People's Republic of China.
- BMC Anesthesiol. 2018 Sep 27; 18 (1): 134.
BackgroundThe airway reflex such as cough is common accompanied with severe fluctuations of hemodynamics during emergence. This prospective double-blind randomized controlled trial tested the hypothesis that topical ropivacaine may reduce extubation response and postoperative sore throat.MethodsFifty-four patients undergoing thyroidectomy were randomly assigned to two groups. The patients in Group R were received 0.75% ropivacaine, which was sprayed on the tracheal mucosa, epiglottis, tongue base, and glottis to achieve uniform surface anesthesia. As control, patients in Group C were received the same volume saline. The primiary outcome was the incidence and grade of cough during peri-extubation.ResultsThe incidence (34.62% vs. 76.92%, P = 0.002) of cough during extubation were lower in Group R compared to Group C. Meanwhile, the sore throat visual acuity score at 12 h after surgery was lower in Group R than that in Group C (2.00 vs. 3.50, P = 0.040).ConclusionTopical anesthesia with 0.75% ropivacaine before intubation can significantly reduce the incidence of cough during peri-extubation. Meanwhile, it reduced hemodynamic fluctuations and postoperative throat pain without influence patients recovery.Trial RegistrationChinese Clinical Trial Registry, ChiCTR1800014412 (date of registration January 2018).
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