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Arq. bras. cardiol ; 54(1): 53-55, jan. 1990. tab, ilus
Article in Portuguese | LILACS | ID: lil-86699

ABSTRACT

Mulher de 59 anos de idade, com quaro de angina de peito, hipertensäo arterial e obstruçäo coronariana epicárdica, veio a falecer 24 horas após a colocaçäo de três pontes de veia safena, em choque cardiogênico. Os achados necroscópicos revelaram infarto em regiäo póstero-lateral do coraçäo. As veias safenas estavam completamente pérvias. Observou-se comprometimento dos vasos intramiocárdicos do ventrículo esquerdo, caracterizado por intensa fibroelastose da íntima, hiperplasia da média e reduçäo do lume vascular. Estas lesöes vasculares atingiam 73% dos vasos com diâmetro acima de 150 micra. Os autores acreditam que a microarteriopatia coronária, quando grave e difusa, possa representar uma limitaçäo ao fluxo sangüíneo, na revascularizaçäo miocárdica


The authors report the case of 59 year-old hypertensive woman, suffering from angina pectoris who died 24 hours after coronary by pass surgery due to cardiogenic shock. Autopsy revealed a small recent postero-lateral infarction. The venous by pass, however, were inconspicous. Histologic ezamination showed e~tensive microarteriopathy with stenosing intimalfibro-elastõsis and hyperplasia of the media, affecting 73% of the vessels with a diameter greater than 150 micra. The authors believe that the diffuse microangiopathy could have affected the myocardial reperfusion, and participated of the mechanical dysfunction.


Subject(s)
Humans , Female , Middle Aged , Coronary Disease/etiology , Myocardial Infarction/pathology , Saphenous Vein/pathology , Coronary Artery Bypass/adverse effects , Coronary Circulation , Coronary Disease/surgery , Angina Pectoris/etiology , Coronary Artery Disease/complications
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