[Isotope images of infarct and myocardial ischemia].
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Biomedical subjects
Publications and source records attributed to C Sol.
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The pyrophosphate of Tc99m attaches itself to ischaemic myocardial cells, and therefore makes it possible to obtain a scintigram of necrotic or necrosing myocardium. In a series of 65 cases the scintigram was positive in every case in which there had been a recent transmural infarct (17 cases). The results showed greater variation in the other ischaemic conditions involving the myocardium (limited infarcts or simple angina). The progress as a function of time was stuided in a series of fairly recent and older infarcts. The limitations and future prospects of this investigations are discussed.
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The cardiac complications of radiotherapy of the thorax (e.g. for Hodgkin's disease and carcinoma of the breast) are various: 1) Pleural effusions, occurring a few months to two years after radiotherapy, spontaneously curable but may give signs of tamponnade or lead to constriction. 2) Constrictive pericarditis often several years after irradiation, with a poor prognosis in spite of attempts at pericardectomy which is indicated at the stage of hemodynamic constriction. 3) Myocardial involvement with advanced fibrosis and with various clinical presentations. The failure of pericardectomy and mitral incompetence were evidence of myocarditis in the case reported here.
A case of myeloblastic tumour localised successively in the ribs, lymph nodes, pericardium and the pleura but not affecting the marrow for a period of six months is reported. Such case of chloroma without marrow invasion are rare, and this opportunity is taken to review the literature.