[Silent ischemia in patients with previous myocardial infarct. Correlation of Holter and coronarography].
OBJECTIVE
Our objective was to determine the presence of silent myocardial ischemia and the degree of coronary obstructions.


METHODS
Successively patients with myocardial infarction.


METHODS
Patients admitted to the coronary intensive care, later followed in a specialised out-patients consultation.


METHODS
62 patients with previous myocardial infarction.


METHODS
All the patients were submitted to Holter-monitoring and coronary angiography.


RESULTS
Silent ischemia was present in 14 (22,6%) of the patients. Seven of these (50%) had 3 vessels disease, 2 (14,3%) had 2 vessels disease, and 5 (35,7%) had 1 vessel disease. Twelve of the patients (86%) had occlusive lesions (greater than 90%), localised in 11 (79%) in the third proximal segment of the artery.


CONCLUSIONS
Our results showed that the presence of silent myocardial ischemia was predominantly associated with 3 vessels disease, and with lesions of more than 90% of occlusion, localised in the 1/3 proximal of the vessel. Patients with previous myocardial infarction and silent ischemia may belong to a subgroup with surgical indication. And so, Holter studies in these patients should be followed by angiographic studies for localization of the obstructive lesions.
Carvalho
M
M
da Cunha
A C
AC
Soares
R
R
Carrageta
M
M
Macieira-Coelho
E
E
D000328:Adult; D000368:Aged; D001157:Arterial Occlusive Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology; D017023:Coronary Angiography; D003327:Coronary Disease / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology; D015716:Electrocardiography, Ambulatory; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications; D013997:Time Factors
Isquémia silenciosa em doentes com prévio enfarte de miocárdio correlação entre Holter e coronariografia.