Holst M, Hertegård S, Persson A
Department of Otorhinolaryngology, Karolinska Institutet, Huddinge University Hospital, Sweden.
Laryngoscope. 1990 Jul;100(7):749-55. doi: 10.1288/00005537-199007000-00011.
Voice dysfunction is a known consequence of cricothyroidotomy, but few detailed analyses have been published. This study reports an investigation of voice function in 19 patients who underwent cricothyroidotomy during a 12-month period (54 were patients operated on, 29 survived the primary disease or injury, and 19 agreed to participate in the investigation). The patients were interviewed regarding signs of dysfunction of the cricothyroid muscles, or a diminished external tensor effect on the vocal folds. Laryngoscopy with a magnifying-angled endoscope, stroboscopy, phonetography, determination of mean speaking fundamental frequency, perceptual analysis of the voice, and electromyogram of the cricothyroid muscle were all performed. Four patients had signs of diminished external tensor effect on the vocal folds (mild or moderate voice dysfunction), 5 patients had other voice disorders, and 10 were classified as having normal voice. Elective cricothyroidotomy should be avoided in patients with professional or other activities that place heavy demands on the voice.
嗓音功能障碍是环甲膜切开术已知的后果，但很少有详细分析发表。本研究报告了对19例在12个月期间接受环甲膜切开术患者的嗓音功能调查（共54例患者接受手术，29例在原发性疾病或损伤后存活，19例同意参与调查）。就环甲肌功能障碍体征或声带外部张力减弱效应询问了患者。进行了带放大角度内窥镜的喉镜检查、频闪喉镜检查、语音记录、平均说话基频测定、嗓音感知分析以及环甲肌肌电图检查。4例患者有声带外部张力减弱效应的体征（轻度或中度嗓音功能障碍），5例患者有其他嗓音障碍，10例被归类为嗓音正常。对于从事对嗓音要求较高的职业或其他活动的患者，应避免择期环甲膜切开术。
