[Developmental profile of scintigraphic parameters within 3 weeks following primary myocardial infarction without any attempt at revascularization].
30 patients with a transmural primary myocardial infarction conventionally treated, are explored by myocardial scintigraphy using thallium 201, and calculation of a lesional score (L.S) and angio-scintigraphy on the first day (D1) and at three weeks (D21). The results of these examinations are compared to those of coronography at D21. Anterior necroses present a myocardial fixation defect and a dysfunction of the left ventricle which are more severe than in inferior necroses. Patients with a marked fixation defect (L.S 2) at D1, present a low ejection fraction (EF) becoming significantly worse at D21. Coronary permeability is accompanied by an appreciable improvement of the myocardial fixation from D1 to D21 and a stability of EF. On the contrary, if the occlusion persists, the fixation defect is stable and the EF decreases significantly. In this study, the coronary permeability appears to be associated to a perservation of the ischemic myocardium which may only be demonstrated by knowing the evolution of the various parameters during the first three weeks of the infarction.
D017023:Coronary Angiography; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D009203:Myocardial Infarction / Q000000981:diagnostic imaging* / Q000503:physiopathology; D011877:Radionuclide Imaging; D013318:Stroke Volume; D013997:Time Factors
Profil évolutif des paramètres scintigraphiques dans les trois semaines suivant un primo-infarctus du myocarde en dehors de toute tentative de reperfusion.