Sonographic analysis of laryngeal elevation during swallowing
Sonographic analysis of laryngeal elevation during swallowing
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DOI：
10.1007/s00415-003-1007-2
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发表时间：
2003-03-01
影响因子：
6
通讯作者：
Urban, PP
中科院分区：
文献类型：
--
作者：
Kuhl, V;Eicke, BM;Urban, PP
背景吞咽障碍是许多神经系统疾病的常见症状。这项初步研究的目的是分析吞咽困难患者与健康志愿者相比，在吞咽过程中使用超声超声技术无创性垂直喉偏移。方法使用7.5MHz线阵探头，将42名健康志愿者（平均年龄：57 ± 19岁）和18名因不同神经系统疾病引起的吞咽困难患者（平均年龄：63 ± 8岁）置于喉上纵向位置，获得数据。这允许可视化的轮廓和声学阴影的舌骨和甲状软骨。在喉提升过程中舌骨和甲状软骨上端之间的距离很容易通过视频模式功能进行评估。结果在健康受试者中，我们发现休息时的平均距离为220（+/-30）mm;吞咽5或10 ml水时的最短距离为85（+/-11）mm。在生理条件下减少了61%（+/-3）。神经源性吞咽困难患者的平均相对喉抬高降低至仅42%（+/-10）（p < 0.0001）。结论超声是一种可行的、无创的检查吞咽时喉上举的方法。它可以直接可视化受损的喉运动神经源性吞咽困难患者。
Background Swallowing disorders are common symptoms in many neurological diseases. The aim of this pilot-study was to analyse vertical laryngeal excursion during swallowing noninvasively using ultrasound sonographic techniques in patients with dysphagia compared with healthy volunteers. Methods Data were obtained from 42 healthy volunteers (mean age: 57 +/- 19 years) and 18 patients (mean age: 63 +/- 8 years) with dysphagia due to different neurological diseases using a 7.5 MHz linear array probe, which was placed in longitudinal position above the larynx. This allowed visualization of the contour and the acoustic shadow of the hyoid bone and the thyroid cartilage. The distance between the hyoid bone and the upper end of the thyroid cartilage during laryngeal elevation was readily assessed by video-mode function. Results In healthy subjects we found a mean distance of 220 (+/-30) mm. at rest; the shortest distance during swallowing of 5 or 10 ml water was 85 (+/-11) mm. and represents a reduction of 61% (+/-3) under physiological conditions. The mean relative laryngeal elevation in the patients with neurogenic dysphagia was reduced to only 42% (+/-10) (p < 0.0001). Conclusions Ultrasound is a viable and non-invasive method in the investigation of laryngeal elevation during swallowing. It allows direct visualization of impaired laryngeal motion in patients with neurogenic dysphagia.