Laryngeal Inhalation Injury

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J Korean Soc Laryngol Phoniatr Logop > Volume 12(1); 2001 > Article

Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2001;12(1): 11-16.

흡인성 화상에 의한 후두 손상

조정일, 김영모, 임정혁, 김용재, 이철우, 이명택

인하대학교병원 이비인후-두경부외과학교실, 음성언어클리닉

Laryngeal Inhalation Injury

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ABSTRACT

Background and Objectives
: A burn injury to the glottis differs from a burn injury to the trachea, bronchi, and lung parenchyma, in that thermal injury does not occur to any significant degree below the level of the larynx, due to the effective cooling of air by the upper airway and to reflex closure of the vocal cords from a blast of hot air. Therefore, the laryngeal inhalation injury give rise to airway problem and voice change. The objectives of this study is to assess management of laryngeal inhalation injury and voice change after management.
Materials and Method
s : Voice choses and laryngeal injuries of eight laryngeal inhalation patients were analyzed through questionnaire, voice dynamic laboratory, and laryngeal stroboscopy. Operative management was performed to five patients for airway patiency and vocal cord movement on laryngeal pathology ind voice therapy was performed to all patients. One-year after, voice changes and laryngeal injuries were reanalyzed with same methods.
Results
: Vocal breathiness, decreased voice intensity, reduced voice range, and easy fatigability were major complaints of laryngeal inhalation patients. Glottic stenosis were developed to five of eight patients, and vocal cord atrophy, bowing were developed to others. Vocal cord mucosal waves were significantly decreased in all patients. Jitter(%), Shimmer(dB) were increased and Maximal phonation time(MPT) was decreased. One-year after, subjective voice changes and objective voice parameters were improved. And vocal cord mucosal waves were recovered in all patients.
Conclusion
s : Subjective voice quality and objective voice parameters were improved after operative management for laryngeal pathology and voice therapy. And we observed recovery of vocal fold mucosal waves by laryngeal stroboscopy. We think that early preventable tracheotomy is necessary to reduce the laryngeal contact injury in laryngeal inhalation patients.

KEY WORDS： Burn;Inhalation;Voice;Glottic stenosis;

중심 단어： 흡인성 후두 손상;후두 협착;