STUDIES ON THE PATHOPHYSIOLOGY OF PULMONARY CAVITIES:WITH SPECIAL REFERENCE TO EXPERIMENTAL OBSERVATION ON THE ORGANIC AND FUNCTIONAL CONNECTION BETWEEN THE CAVITY AND DRAINING BRONCHUS Report I.
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The draining bronchus and the modes of its connection with the pulmonary cavity are highly significant for the formation, development and healing of the cavity. Especially, the opening or obstracting of the region of connection with the cavity is closely related to the healing of the cavity, but there is not always an agreement in opinions as to such a standpoint. However, the cavity and draining bronchus are always under the strong influence of respiratory movement in the living body. In this sense, both organic and functional investigations of the relation between the cavity and draining bronchus and especially the site of their connection are indispensable. In this report the organic relationship between the cavity and draining bronchus was explored in 96 dogs (experimental tuberculosis) and 20 dogs (experimental suppuration) as well as in clinical cases (30 cases of tuberculosis and 3 cases of abscess), by means of bronchography and unsaturated polyester resin casting of the draining bronchus and cavity. From the standpoint of comparative pathophysiology, similar observations were made on experimental suppuration and clinical cavities. The following results were obtained.<BR>1) As compared with bronchography, the rate at which air was introduced into the resin cast specimen was greater (45%), and a specimen almost similar to the original cavity was prepared. By the resin casting technique the relation between the cavity and draining bronchus could be observed in three dimensions and minutely under conditions near those in the living body.<BR>2) The number of draining bronchi averaged 2.4 in the experimental tuberculosis cavity. The draining bronchus entered the cavity at about the 3 rd-4 th branches. The number of draining bronchi was intimately related to the characters of the cavity it was greater in monocular (3.2 bronchi) and large (2.9) cavities than in the multilocular (1.8) and small cavities (1.2). It is presumed that multilocular small cavities become confluent into a large monocular cavity with a resultant increase in the number of draining bronchi. The number of draining bronchi was generally greater in caseous (3.6) and old cavities (2.2) than in exdative (1.8) and fresh cavities (1.8). The greater the number of draining bronchi, the easier becomes the excretion of cavity. As compared with the experimental suppurative cavity, the number of draining bronchi was 4.1 on the average, being greater than that of the tuberculous cavity. Clear-cut differences were noted in respect to cavity forms and the course of cavitation, etc.
- 一般社団法人 日本結核病学会の論文
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関連論文
- 111) 実験空洞生成過程における肺血管系諸変化の推移について(第24回 日本循環器学会総会)
- STUDIES ON THE PATHOPHYSIOLOGY OF PULMONARY CAVITIES:WITH SPECIAL REFERENCE TO EXPERIMENTAL OBSERVATION ON THE ORGANIC AND FUNCTIONAL CONNECTION BETWEEN THE CAVITY AND DRAINING BRONCHUS Report I.