Finizia C, Dotevall H, Lundström E, Lindström J
Department of Otorhinolaryngology, Sahlgrenska University Hospital, Göteborg, Sweden.
Arch Otolaryngol Head Neck Surg. 1999 Feb;125(2):157-63. doi: 10.1001/archotol.125.2.157.
To compare voice and speech function in patients who underwent laryngectomy with that of 2 control groups.
A cross-sectional study comparing acoustic and temporal variables with perceptual evaluations in 3 subject groups.
University hospital in Göteborg, Sweden.
Two groups of patients with laryngeal carcinoma were examined: 12 male patients who had laryngectomy and were using a tracheoesophageal prosthesis and 12 male patients treated with radical radiotherapy who had a preserved larynx. The third group consisted of 10 normal controls without laryngeal disease.
Acoustic variables were fundamental frequency, absolute fundamental frequency perturbation, speech rate, and maximum phonation time. Perceptual evaluation included 15 listeners' perceptual evaluation and the patients' self-assessment of speech intelligibility, voice quality, and speech acceptability.
No significant acoustic or temporal differences were found between the laryngectomy and radical radiotherapy groups. There was a significant difference between the patient groups in perceptual evaluation. Both groups of patients differed from normal controls in acoustic and temporal measures, where the laryngectomy group generally deviated more from the normal controls than the patient group treated with radiotherapy. There was a weak, but significant, correlation between absolute fundamental frequency perturbation and perceived voice quality.
Perceptual evaluations could indicate significant differences between the patients who underwent laryngectomy and irradiated patients, where the acoustic analysis failed to reflect these differences. Both patient groups could be distinguished according to acoustic and temporal measures when compared with normal controls. The acoustic analyses were more sufficient in voices without severe dysfunction.
比较接受喉切除术患者与两个对照组的嗓音和言语功能。
一项横断面研究，比较3组受试者的声学和时间变量以及感知评估。
瑞典哥德堡的大学医院。
检查了两组喉癌患者：12名接受喉切除术并使用气管食管假体的男性患者和12名接受根治性放疗且保留喉部的男性患者。第三组由10名无喉部疾病的正常对照者组成。
声学变量包括基频、绝对基频微扰、语速和最长发声时间。感知评估包括15名听众的感知评估以及患者对言语可懂度、嗓音质量和言语可接受性的自我评估。
喉切除术组和根治性放疗组之间未发现明显的声学或时间差异。患者组在感知评估方面存在显著差异。两组患者在声学和时间指标上均与正常对照者不同，其中喉切除术组通常比接受放疗的患者组更偏离正常对照者。绝对基频微扰与感知嗓音质量之间存在微弱但显著的相关性。
感知评估可显示接受喉切除术的患者与接受放疗的患者之间的显著差异，而声学分析未能反映这些差异。与正常对照者相比，两组患者均可根据声学和时间指标进行区分。声学分析在嗓音无严重功能障碍时更为充分。
