Department of Sleep and Respiratory Medicine, Papworth Hospital, Papworth, UK.
J Clin Sleep Med. 2010 Feb 15;6(1):64-8.
To look for an association between the vertical position of the hyoid, as measured by the sella-hyoid (S-H) distance and the severity of obstructive sleep apnea (OSA). A previously published study on this subject showed a significant correlation between S-H distances more than 120 mm and severe OSA.
A retrospective study of patients who were treated with a mandibular advancement splint (MAS) for sleep disordered breathing during June 2000 to May 2005 at the orthodontic department of Colchester University Hospital.
One hundred and six consecutive patients who were treated with MAS during the period.
Lateral cephalograms were taken and traced prior to the provision of MAS therapy, and the distance S-H was measured. The mean S-H distance was 125.5 mm (103-148 mm) with a median of 126 mm. Four out of 8 patients (50%) with severe OSA had a S-H distance more than 120 mm, as did 38 out of 50 (76%) with mild to moderate OSA (AHI 5-30), and 17 out of 22 patients (77.27%) with an AHI of 0 to 4. No significant correlations between the S-H distance and the severity of OSA were found (Pearson correlation coefficient -0.034 and 95% confidence interval: -0.25, 0.18).
There was no correlation between patients' OSA severity and their cephalometric S-H distance. The utility of the latter as a screening test cannot therefore be recommended as a substitute for existing diagnostic tests.
寻找舌骨的垂直位置（通过 Sella-hyoid 距离测量）与阻塞性睡眠呼吸暂停（OSA）严重程度之间的关联。此前关于该主题的一项研究表明，S-H 距离超过 120mm 与严重 OSA 之间存在显著相关性。
这是一项回顾性研究，研究对象为 2000 年 6 月至 2005 年 5 月在科尔切斯特大学医院正畸科接受下颌前伸矫治器（MAS）治疗睡眠呼吸障碍的患者。
106 例连续接受 MAS 治疗的患者。
在提供 MAS 治疗之前拍摄了侧位头颅侧位片并进行了描记，测量了 S-H 距离。S-H 平均距离为 125.5mm（103-148mm），中位数为 126mm。4 例（50%）严重 OSA 患者的 S-H 距离超过 120mm，50 例（76%）轻度至中度 OSA（AHI 5-30）患者中有 38 例，22 例（77.27%）AHI 为 0 至 4 的患者中有 17 例。S-H 距离与 OSA 严重程度之间未发现显著相关性（Pearson 相关系数-0.034，95%置信区间：-0.25，0.18）。
患者 OSA 严重程度与头影测量 S-H 距离之间无相关性。因此，后者作为筛选试验的效用不能被推荐作为现有诊断试验的替代方法。
