Lidocaine lubricants for intubation-related complications: a systematic review and meta-analysis: a systematic review and meta-analysis

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Abstract

Purpose: Postoperative sore throat (POST) is a relatively common morbidity. Topical lidocaine lubricants have been proposed to prevent POST; however, their effectiveness remains uncertain. This meta-analysis aimed to evaluate the prophylactic effect of lidocaine lubrications against POST, cough, and hoarseness in adult patients after surgery. Methods: Randomized-controlled trials from PubMed, Embase, the Cochrane Library, and the ClinicalTrials.gov registry that were published from inception until 26 March 2018 were included that compared the effectiveness of lidocaine lubricants with that of controls in preventing the incidence of overall POST and moderate to severe POST (POSTMS) at the first and 24th postoperative hour (POST-1h, POST-24h, POSTMS-1h, and POSTMS-24h). Postoperative cough and hoarseness at the 24th postoperative hour were also studied. Bias assessment and subgroup, sensitivity, and trial sequential analyses were also performed. Results: Fourteen randomized-controlled trials (n = 2146) were selected. The incidences of POST-1h and POST-24h were 41.1 % and 22.6 % for the lidocaine group, and 41.9% and 23.5% for the control group, respectively. No effect was found on any of the outcome measurements. The overall risk ratios were 1.11 (95% confidence interval [CI], 0.82 to 1.51) and 1.06 (95% CI, 0.37 to 3.02) for the incidence of POST-1h and POSTMS-1h, respectively; 0.99 (95% CI, 0.83 to 1.17) and 0.49 (95% CI, 0.16 to 1.50) for POST-24h and POSTMS-24h, respectively; and, 1.09 (95% CI, 0.71 to 1.66) and 0.91 (95% CI, 0.66 to1.24) for postoperative cough (PC)-24h and postoperative hoarseness (PH)-24h, respectively. Conclusion: Lidocaine lubricants applied on the tips of endotracheal tube are not effective against the morbidities of POST, PC, and PH. Trial registration: PROSPERO (CRD42017073259); registered 26 October, 2017.

Original languageEnglish
Pages (from-to)1221-1239
Number of pages19
JournalCanadian Journal of Anesthesia
Volume66
Issue number10
DOIs
Publication statusPublished - Oct 15 2019

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

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