Accession Number:

AD0605906

Title:

CHANGES OF PULMONARY BLOOD VESSELS IN CHRONIC RADIATION SICKNESS,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1964-03-10

Pagination or Media Count:

1.0

Abstract:

During chronic radiation sickness appear functional and anatomical changes of the blood vessels of the lungs, which are developed in accordance with general process of the disease. These disturbances, expressed in periods of intensification and remissions that quiet down somewhat with time, can be revealed during angiocardiography. In the initial period of disease in connection with dystonia, developed in contraction of big vessels and dilation of the samll vessels, there appear sections of delayed blood circulation hypostases and is established an accelerated rhythm of motion of the contrast medium in the vessels of the lungs. During intensification of the illness there can appear obturation of the small or longer arteries. Blood circulation in the vessels of the lungs is accelerated due to the dilation of the artery-venous anastomoses. In later periods there is an increase of contraction of the pulmonary arteries, depletion of the network of small vessels, emphsema and radiation fibers of lungs. In the periods of remissions the characteristics of vascular circulator dystonia are absent or are weakly expressed, but the unusual flow of contrast medium from the arteries into the pulmonary veins remains, passing by the phase of capillary congestion. In the surving animals recanalization can set in the obturated pulmonary vessels. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE