Effect of Short-Term Endotracheal Intubation on Vocal Function

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J Korean Soc Laryngol Phoniatr Logop > Volume 11(1); 2000 > Article

Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2000;11(1): 64-68.

단기간 기관지 삽관후의 음성의 변화

장혁기, 강무완, 최정환, 유영삼, 우훈영, 윤자복

인제대학교 의과대학 상계백병원 이비인후과학교실

Effect of Short-Term Endotracheal Intubation on Vocal Function

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ABSTRACT

Background and Objectives
: To assess the role of altered vocal function in transient voice change after short-term endotracheal intubation, we evaluated acoustic parameters, aerodynamic parameters, and laryngoscopic characteristics preoperatively and postoperatively.
Materials and Method
s : Vocal function of 10 patients undergoing tympanoplasty and mastoidectomy using general anesthesia and endotracheal intubation were studied preoperatively, at 1day and 7 days after extubation. Acoustic analysis, aerodynamic study, and telescopic examination were used to assess vocal function.
Results
: In acoustic parameters, there was no significant difference between preoperative and postoperative measures. However, in subglottic pressure, ere was a significant decrease at 1 day after extubation and this change was return to preoperative value at 7 days after extubation. MPT(Maximal Phonation Time), MER(Mean flow Ratio), and VC(Vital Capacity) were decreased 1 day after extubation but did not show statistically significant change. Three of 10 patients manifested a vocal fold edema and injection 1 day after extubation.
Conclusion
s : Subglottic pressure revealed a significant decrease at 1 day after extubation. And this change was correlated with laryngeal morphologic change and decrement in pulmonary function.

KEY WORDS： Short-term endotracheal intubation;Voice change;Subglottic Pressure;

중심 단어： 단기간 기관지 삽관;음성 변화;성문하압;