[Predictive value of coronarography in the localization of arterial lesions responsible for future infarcts of the myocardium].
OBJECTIVE
To evaluate the capability of coronary angiography, when performed in stable conditions, to predict which arterial segment will be responsible for future acute myocardial infarction.


METHODS
17 patients (15 men and 2 woman), mean age 52 +/- 12 years, who suffered a myocardial infarction (AMI), and had been previously submitted to coronary angiography. After the myocardial infarction all the patients had a new angiography.


METHODS
The coronary angiographies performed before and after the AMI were compared, by simultaneous visualization of the films, and the segment related to the AMI was determined with the help of ECG and ventriculography. Among the arterial segments with in the coronary angiography performed before the AMI and who were found to be related with it, three Groups were considered: A-with no angiographic lesion; B-with less then 70% lesion; C-with a lesion equal or superior to 70% (angiographically significant).


RESULTS
In nine patients the arterial segment related to AMI belonged to group A. In four patients it belonged to group B and in four to C. Segments with angiographically significant lesions were responsible for AMI in less then one fourth of the patients.


CONCLUSIONS
Coronary angiography, when performed in stable conditions, has a low predictive value to determine the localization of the arterial segment related to future AMI.
Trabulo
M
M
Serviço de Cardiologia, Hospital de Santa Cruz.
Silva
J A
JA
Mesquita
A
A
Palos
J L
JL
Seabra-Gomes
R
R
D000328:Adult; D000368:Aged; D017023:Coronary Angiography; D003327:Coronary Disease / Q000150:complications / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000000981:diagnostic imaging* / Q000209:etiology; D011237:Predictive Value of Tests; D012189:Retrospective Studies
Valor preditor da coronariografia na localização da lesão arterial responsável por futuro enfarte do miocárdio.