慢性中耳炎における中耳含気蜂窩発育抑制機構に関する研究
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概要
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The planimetric measurement was performed on the areas of the pneumatic cells of the 128 billaterally healthy ears, those of 160 patients of chronic middle ear inflammation (197 diseased, 123 nondiseased), and 54 operated ears by exenterating the cells totally. on the X ray-photographs taken by the Lange-Sonnenkalbs method.The values of measurement were treated statistically, and the following results were obtained.1) On the bilaterally healthy ears, from 0 to 15 years of age, the pneumatic cells develop rapidly, but after that age, the development becomes very slowly. The mean value of the measurement was 12.1±1.2cm2.2) On the ears of chronic middle ear inflammation, the development of the cells is evidently worse than those of the healthy persons, showing poor development from 0 to 15 years of age. The mean values measured 3.5±1.1cm2 on unilaterally diseased ears, and 3.7±0.8cm2 on bilaterally diseased ones.3) The mean values of the measurements on the non diseased ears of the patients, who were suffering from unilateral c. m. e. i., intervened between those of the bilaterally healthy ears and of the c. m. e. i., showing an intermediate development according to the age.4) The areas of the exenterated cavities of the pneumatic cells of the c. m. e. i. on the X ray photographs were measured between the values of the diseased and non-diseased ears of the c. m. e. i.From the above data, the author concluded that the hindernis in the development of the pneumatic cells of the ear is caused by congenital disposition as well as secondary inflammation.
- 社団法人 日本耳鼻咽喉科学会の論文