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Minerva Anestesiologica 2020 Jan 28

DOI: 10.23736/S0375-9393.20.14170-1


lingua: Inglese

Lidocaine for postoperative sore throat: a meta-analysis of randomized controlled trials

Hui LI 1, 2, Yan YUE 1, 3, Yi QU 1, 3, Dezhi MU 1, 3

1 Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu, China; 2 Department of Intensive Care Unit of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, China; 3 Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China


INTRODUCTION: Postoperative sore throat (POST) is a common complication after tracheal intubation. Various studies have examined the efficacy of interventions using lidocaine to prevent POST. Here, we present a meta-analysis assessing their efficacy.
EVIDENCE ACQUISITION: We systematically searched the PubMed, Embase, and Cochrane databases to identify randomized controlled trials (RCTs) assessing the efficacy of lidocaine interventions in the prevention of POST. Data synthesis was obtained by using relative risks (RRs) with 95% confidence intervals (CIs) for the incidences of POST, cough, and hoarseness after different interventions.
EVIDENCE SYNTHESIS: Twenty-seven RCTs involving 3049 patients were analyzed, including 14 on the use of intracuff lidocaine, 8 on the use of a lidocaine jelly, 8 on the use of a lidocaine spray, and 4 on the use of intravenous lidocaine. Intracuff lidocaine and intravenous lidocaine showed significant efficacy compared with controls in preventing POST at 1 h and 24 h, whereas lidocaine jelly and lidocaine spray did not. Intracuff lidocaine, lidocaine spray, and intravenous lidocaine decreased the incidence of cough, but only the intracuff lidocaine decreased the incidence of hoarseness.
CONCLUSIONS: This meta-analysis indicated that intracuff lidocaine and intravenous lidocaine are effective in preventing POST. In addition, intracuff lidocaine was associated with reducing the risk of both cough and hoarseness.

KEY WORDS: Lidocaine; Postoperative sore throat; Tracheal intubation

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