[The angiographic characteristics and extent of the coronary lesions in patients with residual ischemia following a myocardial infarct].
OBJECTIVE
The aim of the present study was to analyze the angiographic findings of patients with residual ischemia after acute myocardial infarction (spontaneous angina versus ischemia stress induced), testing the following theoretical hypothesis: those patients with early spontaneous angina after acute myocardial infarction have singular angiographic characteristics that justify their clinical instability.


METHODS
A consecutive group of 60 patients admitted in the Coronary Care Unit with acute myocardial infarction, all of them presenting signs or symptoms of residual ischemia, was divided into two subgroups: A--25 patients with spontaneous angina before discharge; B--35 patients with myocardial ischemia (symptomatic or not) during exercise test performed before discharge.


METHODS
The angiographic studies were analyzed according to following parameters: number of vessels with significant stenosis (more than 70%), involvement of the left anterior descending artery: "TIMI" score, presence of thrombi and morphology of the culprit lesion, presence of collaterals.


RESULTS
We did not find any significant differences between the analyzed parameters.


CONCLUSIONS
The present study does not disclose any significant differences related with coronary anatomy in patients with residual ischemia after acute myocardial infarction when we considered the two most frequent kinds of presentation: spontaneous angina or stress induced ischemia before discharge. Therefore the previous postulated hypothesis had not been confirmed.
Morais
J
J
Serviço de Cardiologia, Hospital da Universidade de Coimbra.
Faria
H
H
Calisto
J
J
Correia
F
F
Maldonado
J
J
Freitas
M
M
Providência
L
L
D000368:Aged; D000787:Angina Pectoris / Q000000981:diagnostic imaging / Q000453:epidemiology; D016009:Chi-Square Distribution; D017023:Coronary Angiography; D003327:Coronary Disease / Q000000981:diagnostic imaging* / Q000453:epidemiology; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000000981:diagnostic imaging* / Q000453:epidemiology; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging* / Q000453:epidemiology; D005082:Physical Exertion; D012189:Retrospective Studies
Características angiográficas e extensão das lesões coronárias em doentes com isquemia residual após enfarte do miocárdio.