Kaneko I
Department of Otolaryngology, School of Medicine, Kitasato University, Sagamihara.
Nihon Jibiinkoka Gakkai Kaiho. 1992 Jul;95(7):974-87. doi: 10.3950/jibiinkoka.95.974.
A quantitative study was performed to analyze movement of the hyoid bone on swallowing in 71 patients with pharyngo-laryngeal neurosis (44 males, 27 females), who had no abnormal findings either morphologically or functionally. The lateral X-ray cine (30 frames/sec) was taken while the patients swallowed the contrast medium in the upright position, and precise movement of the hyoid bone was examined using a motion analyzer. The movement was divided into 5 phases; initial slow elevation from the resting position (1st elevation phase), then a quick upwards shift to the highest position (2nd elevation phase), where the hyoid bone remained temporarily (static phase), followed by rapid and slow descending shifts towards the resting position (1st and 2nd descending phase, respectively). The resting position of the hyoid bone is significantly lower in males than in females and it seemed to get lower with age in both sex. When compared to the younger group (age 10-30), the older group (age 60-70) had significantly more distance and longer duration of deglutition in the 1st elevation phase, whereas the 2nd elevation phase did not differ among the age group. The results of this study indicate that prolongation of the time and distance of the 1st elevation phase are more significant in the older group, which may well explain the cause of delayed of deglutition.
对71例咽喉神经症患者（44例男性，27例女性）进行了一项定量研究，这些患者在形态学和功能上均无异常发现。在患者直立位吞咽造影剂时拍摄侧位X线电影（30帧/秒），并使用运动分析仪检查舌骨的精确运动。该运动分为5个阶段：从静止位置开始的初始缓慢抬高（第1抬高阶段），然后快速向上移动到最高位置（第2抬高阶段），舌骨在该位置暂时停留（静止阶段），随后分别朝着静止位置快速和缓慢下降（第1和第2下降阶段）。男性舌骨的静止位置明显低于女性，并且似乎在两性中都随着年龄的增长而降低。与较年轻组（10 - 30岁）相比，较年长组（60 - 70岁）在第1抬高阶段的吞咽距离明显更长，持续时间更长，而第2抬高阶段在各年龄组之间没有差异。本研究结果表明，较年长组中第1抬高阶段的时间和距离延长更为显著，这很可能解释了吞咽延迟的原因。
