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[Risk Factors for the Postsurgical Hoarseness Contribution of the Intubation Device].

BACKGROUND
Postsurgical hoarseness is one of the major postoperative complications.


METHODS
Risk factors associated with the postsur- gical hoarseness were investigated from medical records of 579 adult patients undergoing general anes- thesia with tracheal intubation. Postsurgical hoarseness was judged if a patient developed hoarseness at PODO or PODI by postanesthesia round. Multivariate logistic regression was performed to identify the parameters associated with postsurgical hoarseness.


RESULTS
Postsurgical hoarseness developed in 16.1% of patients. None of the patients suffered hoarseness continuing more than 4 days. Multivariate logistic regression revealed increased BMI (odds ratio (OR) 1.06 [95% confidence interval (CI):1.00-1.131], depth of tracheal tube (OR 0.71 [95% CI : 0.57-0.86]), intu- bation performed by doctors in training (OR 4.07 [95% CI : 2.42-7.10]) and intubation with Airway Scope® (OR 2.03 [95% CI : 1.10-3.66]).


CONCLUSIONS
Increased BMI, depth of tracheal tube, intubation performed by doctors in training and intu- bation with Airway Scope® are risk factors of postsur- gical hoarseness.