[Usefulness of early exercise test after anterior infarction in the diagnosis of multivessel disease].
OBJECTIVE
The aim of the present study was to determine the reliability of early exercise test to detect multivessel disease in survivors of an uncomplicated first anterior Q-wave myocardial infarction.


METHODS
Among 100 consecutive patients 64 (aged 55 +/- 10 years) were included in the study. Thirty-four patients (53.1%) received thrombolytic therapy and this was considered successful, by means of non-invasive criteria, in 24 patients (37.5%). A standard symptom-limited exercise test, 11-15 days after myocardial infarction, and coronary arteriography, < 72 hours later, were performed in all patients.


RESULTS
On exercise test 6 (9.3%) patients developed significant ST segment depression, 48 (75%) significant ST segment elevation, 5 (7.8%) ST depression in inferior leads together with ST elevation in anterior leads and 3 (4.6%) angina. Of the 18 patients with multivessel disease 5 (27.8%) developed ST depression, 10 (55.5%) ST elevation, 1 (5.5%) ST depression in inferior leads together with ST elevation in anterior leads and 1 (5.5%) angina.


CONCLUSIONS
Our study indicates that ST depression in a symptom-limited exercise test performed early after an anterior Q-wave acute myocardial infarction is unusual and has low sensitivity (27.8%) to detect multivessel disease. ST elevation is the more common finding in this test (75%) and has no relation with the severity of CAD.
Martínez Sánchez
J
J
Unidad de Cardiología, Hospital Universitario Virgen de la Arrixaca, Murcia.
Salas Nieto
J
J
Ruipérez Abizanda
J A
JA
Picó Aracil
F
F
de la Morena Valenzuela
G
G
Campos Peris
J V
JV
Ruiz Ros
J A
JA
D000328:Adult; D000368:Aged; D017023:Coronary Angiography; D003327:Coronary Disease / Q000175:diagnosis* / Q000000981:diagnostic imaging; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000188:drug therapy; D012680:Sensitivity and Specificity; D015912:Thrombolytic Therapy; D013997:Time Factors
Utilidad de la prueba de esfuerzo precoz postinfarto anterior para detectar enfermedad multivaso.