耳管連続撮影法(Serial Otosalpingography)による耳管運動に関する研究

概要

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By using the serial otosalpingographic apparatus, the attitude of the eustachian tube in relation to the deglutition movement was observed.The materials were 15 patients with the perforation of the drum membrane.Patients were ordered to swallow once during infusing 40% moljodol throuth the perforation.Eight x-ray photographes were taken within 6 sec.in each cases.Twelve cases among them were successfully investigated.The results were as follows.1)The movement of the euatachian tube and its surrounding area in deglutition had 3 stadium;primary, maximum, and final.2)The pharyngeal orifice and the cartilaginous area openedat almost the same time.(The primary stadinm)3)When the deglutition movement was proceeding, the tubal cartilage moved postero-superio- medially, and pharyngeal cavity became narrow by the constraction of M.levator veli palatini and Mm.constrictores pharyngis.(The maximum stadium)4)When the deglutition movement almost finished the x-ray findings showed similar condi- tion t the primary stadium.(The final stadium)5)The X-ray photograph sometimes showed two parts separated by the prominence of M.levator veli palatini.6)In the case of tubal stenosis the eustachian tube enlarged during swallowing.
社団法人日本耳鼻咽喉科学会の論文