Pharmacological methods for reducing coughing on emergence from elective surgery after general anesthesia with endotracheal intubation: protocol for a systematic review of common medications and network meta-analysis

Abstract Background Emergence coughing and bucking, secondary to endotracheal tube stimulation of the tracheal mucosa, frequently occurs after the general anesthetic recedes. Besides general unpleasantness, coughing has important physiological sequelae that may be detrimental to the postoperative pa...

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Main Authors: Alan Tung, Nicholas A. Fergusson, Nicole Ng, Vivien Hu, Colin Dormuth, Donald G. E. Griesdale
Format: Article
Language:English
Published: BMC 2019-01-01
Series:Systematic Reviews
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13643-019-0947-2
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author Alan Tung
Nicholas A. Fergusson
Nicole Ng
Vivien Hu
Colin Dormuth
Donald G. E. Griesdale
author_facet Alan Tung
Nicholas A. Fergusson
Nicole Ng
Vivien Hu
Colin Dormuth
Donald G. E. Griesdale
author_sort Alan Tung
collection DOAJ
description Abstract Background Emergence coughing and bucking, secondary to endotracheal tube stimulation of the tracheal mucosa, frequently occurs after the general anesthetic recedes. Besides general unpleasantness, coughing has important physiological sequelae that may be detrimental to the postoperative patient. Multiple pharmacological strategies have been published, but prior systematic reviews on this topic have neither been comprehensive enough in their literature or medication search, nor provided us the answer regarding what the best pharmacological method is to prevent or minimize peri-extubation coughing. Our systematic review and network meta-analysis’ primary objective is to determine the relative efficacies of different pharmacological methods on decreasing coughing (none to mild compared to moderate to severe, as defined by the modified Minogue scale) during emergence after a general anesthetic with endotracheal intubation in adult elective surgeries. Medications of interest are lidocaine or lignocaine (intravenous (IV), intracuff alkalinized, intracuff non-alkalinized, topical, endotracheal application), dexmedetomidine IV, remifentanil IV, and fentanyl IV. These medications were selected based on a preliminary review of the literature. Methods Using a predefined search strategy, we will search MEDLINE, Cochrane Central Register of Controlled Trials, Embase, Cochrane Database of Systematic Reviews, ACP Journal Club, Database of Abstracts of Reviews of Effects, and the Cochrane Methodology Register, with no date or language restrictions. Gray literature search will encompass conference abstracts, Web of Science, and references from publications selected for full-text review. Two reviewers will independently screen the retrieved literature using predetermined inclusion criteria, process publications selected for full-text review, extract data from publications chosen for study inclusion, and evaluate for bias using the Cochrane risk of bias assessment. Risk ratios and 95% confidence intervals will be calculated for each study, and a surface under the cumulative ranking curve will determine the relative rank of each intervention in its ability to prevent coughing on emergence. Discussion The proposed systematic review and network meta-analysis will not only provide a more thorough review of common medications used to decrease emergence coughing, but also inform clinicians which of these pharmacological strategies is the best approach. Systematic review registration PROSPERO CRD42018102870
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spelling doaj.art-bc68753e109d40c69961afda6cc7ee2a2022-12-21T21:40:19ZengBMCSystematic Reviews2046-40532019-01-01811710.1186/s13643-019-0947-2Pharmacological methods for reducing coughing on emergence from elective surgery after general anesthesia with endotracheal intubation: protocol for a systematic review of common medications and network meta-analysisAlan Tung0Nicholas A. Fergusson1Nicole Ng2Vivien Hu3Colin Dormuth4Donald G. E. Griesdale5Department of Anesthesiology, Pharmacology and Therapeutics, University of British ColumbiaFaculty of Medicine, University of British ColumbiaFaculty of Medicine, University of British ColumbiaFaculty of Medicine, University of British ColumbiaDepartment of Anesthesiology, Pharmacology and Therapeutics, University of British ColumbiaDepartment of Anesthesiology, Pharmacology and Therapeutics, University of British ColumbiaAbstract Background Emergence coughing and bucking, secondary to endotracheal tube stimulation of the tracheal mucosa, frequently occurs after the general anesthetic recedes. Besides general unpleasantness, coughing has important physiological sequelae that may be detrimental to the postoperative patient. Multiple pharmacological strategies have been published, but prior systematic reviews on this topic have neither been comprehensive enough in their literature or medication search, nor provided us the answer regarding what the best pharmacological method is to prevent or minimize peri-extubation coughing. Our systematic review and network meta-analysis’ primary objective is to determine the relative efficacies of different pharmacological methods on decreasing coughing (none to mild compared to moderate to severe, as defined by the modified Minogue scale) during emergence after a general anesthetic with endotracheal intubation in adult elective surgeries. Medications of interest are lidocaine or lignocaine (intravenous (IV), intracuff alkalinized, intracuff non-alkalinized, topical, endotracheal application), dexmedetomidine IV, remifentanil IV, and fentanyl IV. These medications were selected based on a preliminary review of the literature. Methods Using a predefined search strategy, we will search MEDLINE, Cochrane Central Register of Controlled Trials, Embase, Cochrane Database of Systematic Reviews, ACP Journal Club, Database of Abstracts of Reviews of Effects, and the Cochrane Methodology Register, with no date or language restrictions. Gray literature search will encompass conference abstracts, Web of Science, and references from publications selected for full-text review. Two reviewers will independently screen the retrieved literature using predetermined inclusion criteria, process publications selected for full-text review, extract data from publications chosen for study inclusion, and evaluate for bias using the Cochrane risk of bias assessment. Risk ratios and 95% confidence intervals will be calculated for each study, and a surface under the cumulative ranking curve will determine the relative rank of each intervention in its ability to prevent coughing on emergence. Discussion The proposed systematic review and network meta-analysis will not only provide a more thorough review of common medications used to decrease emergence coughing, but also inform clinicians which of these pharmacological strategies is the best approach. Systematic review registration PROSPERO CRD42018102870http://link.springer.com/article/10.1186/s13643-019-0947-2CoughGeneral anesthesiaExtubationEmergenceNetwork meta-analysisSystematic review
spellingShingle Alan Tung
Nicholas A. Fergusson
Nicole Ng
Vivien Hu
Colin Dormuth
Donald G. E. Griesdale
Pharmacological methods for reducing coughing on emergence from elective surgery after general anesthesia with endotracheal intubation: protocol for a systematic review of common medications and network meta-analysis
Systematic Reviews
Cough
General anesthesia
Extubation
Emergence
Network meta-analysis
Systematic review
title Pharmacological methods for reducing coughing on emergence from elective surgery after general anesthesia with endotracheal intubation: protocol for a systematic review of common medications and network meta-analysis
title_full Pharmacological methods for reducing coughing on emergence from elective surgery after general anesthesia with endotracheal intubation: protocol for a systematic review of common medications and network meta-analysis
title_fullStr Pharmacological methods for reducing coughing on emergence from elective surgery after general anesthesia with endotracheal intubation: protocol for a systematic review of common medications and network meta-analysis
title_full_unstemmed Pharmacological methods for reducing coughing on emergence from elective surgery after general anesthesia with endotracheal intubation: protocol for a systematic review of common medications and network meta-analysis
title_short Pharmacological methods for reducing coughing on emergence from elective surgery after general anesthesia with endotracheal intubation: protocol for a systematic review of common medications and network meta-analysis
title_sort pharmacological methods for reducing coughing on emergence from elective surgery after general anesthesia with endotracheal intubation protocol for a systematic review of common medications and network meta analysis
topic Cough
General anesthesia
Extubation
Emergence
Network meta-analysis
Systematic review
url http://link.springer.com/article/10.1186/s13643-019-0947-2
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