THE AFFECTION OF THE MYOCARDIUM IN RADIATION SICKNESS AND LOCAL X IRRADIATION OF THE CARDIAC REGION (in Russian)
Journal Article
·
· Meditsinskaya Radiologiya (U.S.S.R.) For English translation see Med. Radiol., USSR
OSTI ID:4254760
ECG changes in radiation affection of the heant are identical in whole- body irradiation with sublethal and lethal doses, as well as in local irradiation of the region of the heart. They show a drop in the wave voltage and changes of ihe terminal part of the ventricular complex--the S-T segment and T wave. The cardiac rhythm tends to accelerate. In radiation sickness these changes are seen in two periods: in the first two days following irradiation and at the peak of radiation sickness on the 7 to 9th day. In local radiation reaction they gradually progress. The histological changes of the myocardium, which may lie at the basis of the above ECG changes, consist in the developnment of dystrophic changes against the background of hyperemia, reaching the degree of necrosis. At later periods reactive-inflammatory changes develop which appear earlier and are more marked in local irradiation of the heart. At the basis of ECG changes are lesions of biochemical, primarily oxidatives processes in the myocardium. Inhibition of oxidative processes leads to disturbance of the biochemical structure of the heart and to the development of myocardiodystrophy. (auth)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-13-014196
- OSTI ID:
- 4254760
- Journal Information:
- Meditsinskaya Radiologiya (U.S.S.R.) For English translation see Med. Radiol., USSR, Journal Name: Meditsinskaya Radiologiya (U.S.S.R.) For English translation see Med. Radiol., USSR Vol. Vol: 4, No. 3; ISSN MERAA
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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