Ekberg O, Nylander G
Gastrointest Radiol. 1983;8(4):295-302. doi: 10.1007/BF01948138.
The function of the pharyngoesophageal stage of deglutition was studied by cineradiography in 45 patients with an acute onset of dysphagia. None of the patients had any radiographically detectable foreign body in the pharynx or esophagus. In 34 of the patients (76%) a functional or morphodynamic abnormality was disclosed; a defective closure of the laryngeal vestibule (26 patients), defective movements of the epiglottis (18 patients), uncoordinated relaxation of the cricopharyngeal muscle (14 patients), paresis of pharyngeal constrictor muscles (9 patients), and cervical webs (9 patients). In 21 of the patients more than 1 type of dysfunction was present. The results of this study suggest that cineradiography of the pharyngoesophageal stage of deglutition is useful in patients with acute dysphagia, without a foreign body, as functional abnormalities often can explain the patients' complaints.
通过动态放射成像研究了45例急性吞咽困难患者吞咽时咽食管期的功能。所有患者在咽部或食管均未发现任何影像学可检测到的异物。34例患者（76%）发现有功能或形态动力学异常；喉前庭关闭不全（26例）、会厌运动障碍（18例）、环咽肌不协调松弛（14例）、咽缩肌麻痹（9例）和颈蹼（9例）。21例患者存在不止一种功能障碍类型。本研究结果表明，对于无异物的急性吞咽困难患者，吞咽时咽食管期的动态放射成像很有用，因为功能异常常可解释患者的症状。
