Chinese Medical Sciences Journal ›› 2014, Vol. 29 ›› Issue (4): 221-224.doi: 10.1016/S1001-9294(14)60074-2

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Evaluation of Risk Factors for Arytenoid Dislocation after Endotracheal Intubation: a Retrospective Case-control Study

Le Shen1, Wu-tao Wang2, Xue-rong Yu1, Xiu-hua Zhang1, *, Yu-guang Huang1, *   

  1. 1Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China; 2Department of Anesthesiology, Affiliated Hospital of Xi’an Medical University, Xi’an 710077, China
  • 收稿日期:2014-07-17 出版日期:2014-11-28 发布日期:2014-11-28
  • 作者简介:**Corresponding authors Xiu-hua Zhang Tel: 86-10-69152020, Fax: 86-10-69155580, E-mail: xiuzhangpumch@aliyun.com; Yu-guang Huang Tel/Fax: 86-10-69155580, E-mail: garybeijing@163.com

Evaluation of Risk Factors for Arytenoid Dislocation after Endotracheal Intubation: a Retrospective Case-control Study

Le Shen1, Wu-tao Wang2, Xue-rong Yu1, Xiu-hua Zhang1, *, Yu-guang Huang1, *   

  1. 1Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China; 2Department of Anesthesiology, Affiliated Hospital of Xi’an Medical University, Xi’an 710077, China
  • Received:2014-07-17 Published:2014-11-28 Online:2014-11-28
  • About author:**Corresponding authors Xiu-hua Zhang Tel: 86-10-69152020, Fax: 86-10-69155580, E-mail: xiuzhangpumch@aliyun.com; Yu-guang Huang Tel/Fax: 86-10-69155580, E-mail: garybeijing@163.com

摘要: Objective To investigate the risk factors for postoperative arytenoid dislocation. Methods From September 2003 to August 2013, the records of 16 patients with a history of postoperative arytenoid dislocation were reviewed. Patients matched in terms of date and type of procedures were chosen as the controls (n=16). Recorded data for all patients were demographics, smoking status, alcoholic status, preoperative physical status, airway evaluation, intubation procedures, preoperative laboratory test results, anesthetic consumption and intensive care unit stay. For arytenoid dislocation cases, we further analyzed the incidences of the left and right arytenoid dislocation, and the outcomes of surgical repair and conservative treatment. Categorical variables were presented as frequencies and percentages, and were compared using the chi-squared test. Continuous variables were expressed as means±SD and compared using the Student’s unpaired t-test. To determine the predictors of arytenoid dislocation, a logistic regression model was used for multivariate analysis. Results Sixteen patients with postoperative arytenoid dislocation were enrolled, with a median age of 52 years. Most postoperative arytenoid dislocation patients (15/16, 93.75%) received surgical repair, except one patient who recovered after conservative treatment. None of the postoperative arytenoid dislocation patients were smokers. Red blood cell (P=0.044) and hemoglobin (P=0.031) levels were significantly lower among arytenoid dislocation cases compared with the controls. Conclusions Non-smoking and anemic patients may be susceptible to postoperative arytenoid dislocation. However, neither of them was independent risk factor for postoperative arytenoid dislocation.

关键词: arytenoid dislocation, complication, endotracheal intubation

Abstract: Objective To investigate the risk factors for postoperative arytenoid dislocation. Methods From September 2003 to August 2013, the records of 16 patients with a history of postoperative arytenoid dislocation were reviewed. Patients matched in terms of date and type of procedures were chosen as the controls (n=16). Recorded data for all patients were demographics, smoking status, alcoholic status, preoperative physical status, airway evaluation, intubation procedures, preoperative laboratory test results, anesthetic consumption and intensive care unit stay. For arytenoid dislocation cases, we further analyzed the incidences of the left and right arytenoid dislocation, and the outcomes of surgical repair and conservative treatment. Categorical variables were presented as frequencies and percentages, and were compared using the chi-squared test. Continuous variables were expressed as means±SD and compared using the Student’s unpaired t-test. To determine the predictors of arytenoid dislocation, a logistic regression model was used for multivariate analysis. Results Sixteen patients with postoperative arytenoid dislocation were enrolled, with a median age of 52 years. Most postoperative arytenoid dislocation patients (15/16, 93.75%) received surgical repair, except one patient who recovered after conservative treatment. None of the postoperative arytenoid dislocation patients were smokers. Red blood cell (P=0.044) and hemoglobin (P=0.031) levels were significantly lower among arytenoid dislocation cases compared with the controls. Conclusions Non-smoking and anemic patients may be susceptible to postoperative arytenoid dislocation. However, neither of them was independent risk factor for postoperative arytenoid dislocation.

Key words: arytenoid dislocation, complication, endotracheal intubation

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