Ultrasonographic Examination of the Geniohyoid Muscle as a Swallowing Screening
Refereed conference paper presented and published in conference proceedings


其它資訊
摘要Background: The suprahyoid muscles are important swallowing muscles responsible for the anterior and superior displacement of the hyoid bone, which then causes other physiological changes to allow safe bolus transfer. Head and neck cancer patients who have undergone radiotherapy often suffer from dysphagia and aspiration as a result of muscle dysfunction secondary to post-irradiation fibrosis. Compared to videofluoroscopy and fiberoptic endoscopy, the use of ultrasonography as a swallowing examination has the advantages of being radiation-free, non-intrusive, and less expensive.
Objective: To assess the relationship between the contraction of the geniohyoid muscle and 1) the displacement of hyoid bone during swallowing and 2) penetration-aspiration status in irradiated NPC patients.
Method: This was a cross-sectional study. Fourty NPC patients, previously treated with radiotherapy, were recruited from the ENT Out-patient Clinic at Prince of Wales Hospital. Each patient underwent videofluoroscopy, fiberoptic endoscopy and ultrasonography. Hyoid bone movement, geniohyoid activity and penetration-aspiration status during swallowing were measured quantitatively.
Results: The increase in cross-sectional area of the geniohyoid correlated positively with both anterior and superior displacement of the hyoid bone during thin fluid swallows (p<.05). However, it did not correlate well with penetration-aspiration status.
Conclusion: Ultrasound imaging as a clinical screening tool, although not being able to replace other swallowing examinations, allows direct visualisation and measurement of individual swallowing muscles. This is part of a larger pathophysiological study of oro-pharyngeal dysphagia in this patient group.
著者TONG Chi Fai Michael, KU Ka Ming Peter, LEUNG S F, LEE Kathy Yuet Sheung, CHAN Matthew T V, AHUJA Anil Tejbhan, CHENG Tze Ho
會議名稱CUHK ENT Conference 2015
會議開始日12.12.2015
會議完結日13.12.2015
會議地點Hong Kong
會議國家/地區香港
出版年份2015
月份12
語言英式英語
關鍵詞dysphagia, suprahyoid, ultrasonography, swallowing disorders, speech therapy

上次更新時間 2018-19-01 於 19:36