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BMC Anesthesiology
Published in: BMC Anesthesiology 1/2018

Open Access 01-12-2018 | Research article

Association between the use of a stylet in endotracheal intubation and postoperative arytenoid dislocation: a case-control study

Authors: Lingeer Wu, Le Shen, Yuelun Zhang, Xiuhua Zhang, Yuguang Huang

Published in: BMC Anesthesiology | Issue 1/2018

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Abstract

Backgrounds

Arytenoid dislocation (AD) is a rare but severe complication after general anesthesia with endotracheal intubation. We conducted a case-control study at Peking Union Medical College Hospital to identify risk factors associated with AD, including the use of an intubation stylet.

Methods

Patients who experienced AD were matched 1:3 with controls based on gender, age and type of surgery. Multiple conditional logistic regression was performed to determine associations between potential risk factors and AD.

Results

Twenty-six AD cases were retrospectively identified from 2004 through 2016. On average, arytenoid dislocation occurred in 2 cases per year, with an incidence of 0.904/100,000 (approximately 0.01%). The 26 patients who experienced AD and 78 matched control patients were enrolled in this study. All enrolled patients underwent endotracheal intubation, and a stylet was used for intubation for 38.5% (10/26) of the AD patients and 64.1% (50/78) of the controls (OR = 0.23, 0.07–0.74). A higher incidence of AD was significantly associated with longer duration of operation (OR = 1.74, 1.23–2.47).

Conclusions

The use of an intubation stylet for endotracheal intubation appears to protect against AD. Prolonged operation time increases the risk of AD. These factors should be considered when assessing the risks of AD associated with endotracheal intubation and in efforts to avoid this complication.
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Metadata
Title
Association between the use of a stylet in endotracheal intubation and postoperative arytenoid dislocation: a case-control study
Authors
Lingeer Wu
Le Shen
Yuelun Zhang
Xiuhua Zhang
Yuguang Huang
Publication date
01-12-2018
Publisher
BioMed Central
Published in
BMC Anesthesiology / Issue 1/2018
Electronic ISSN: 1471-2253
DOI
https://doi.org/10.1186/s12871-018-0521-9

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