Trans-Cricothyroid Membrane Injection of Local Anesthesia Attenuates Cough Response and Postoperative Sore Throat to the Nasotracheal Tube
Authors Huang L, Wang L, Peng W, Zhang T
Received 19 December 2019
Accepted for publication 4 February 2020
Published 20 February 2020 Volume 2020:16 Pages 103—108
Checked for plagiarism Yes
Review by Single-blind
Peer reviewer comments 2
Editor who approved publication: Professor Deyun Wang
Lili Huang, Li Wang, Wei Peng, Tiejun Zhang
Department of Anesthesiology, The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, People’s Republic of China
Correspondence: Tiejun Zhang
The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, People’s Republic of China
Tel/Fax +86 27 87686055
Objective: This study aims to investigate the effects of trans-cricothyroid membrane injection of local anesthesia on cough response and postoperative sore throat to the nasotracheal tube.
Methods: Patients who require general anesthesia with nasotracheal tube for oral and maxillofacial surgery were randomised divided into groups L and C. The patients in group L received trans-cricothyroid membrane injection of 2% lidocaine (3 mL) before anesthesia. Meanwhile, the same volume of 0.9% saline was administered to group C. The incidences of cough response, mean arterial pressure (MAP) and heart rate (HR) were recorded during emergency from general anesthesia. Postoperative sore throat (POST) was assessed at 1, 6, 12 and 24 h after surgery.
Results: The data of 60 patients in group L and 61 in group C were included in this study. The incidence of cough was lower in group L than in group C, ie, 41.7% vs 67.2% upon extubation (P=0.006) and 20.0% vs 41.0% at five minutes after extubation (P=0.018). MAP and HR in group L were significantly lower than in group C during emergency from general anesthesia (P< 0.05). POST incidence was significantly reduced in group L at 1 and 6 h after surgery, ie, 35.0% vs 55.7% at 1 h after surgery (P=0.029) and 20.0% vs 37.7% at 6 h after surgery (P=0.044).
Conclusion: Trans-cricothyroid membrane injection of local anesthesia is a simple and effective method to attenuate the incidence of cough response during emergency from general anesthesia. This technique can reduce the incidence of POST after surgery.
Keywords: cricothyroid membrane, cough response, postoperative sore throat
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