Prognostic significance of the ST-segment response during exercise test shortly after acute myocardial infarction. Comparison with other exercise variables.
Eur Heart J
; 4(11): 752-60, 1983 Nov.
Article
en En
| MEDLINE
| ID: mdl-6653587
ABSTRACT
An exercise test was made in 317 patients in the third week after acute myocardial infarction. The following types of exercise associated ST-segment responses were registered in patients less than 70-years-old. I no ST-deviation (33.6%), II ST-depression (42.9%), III ST-elevation (13.4%) and IV inconclusive ST-response (10.1%). The 5-year mortality was significantly lower in group III than in groups II and IV. Group IV had a significantly higher 5-year mortality than all the other groups. Patients with ST-depression had an increased late mortality compared to that of the patients without ST-deviation, but the total mortality did not differ between these two groups. A highly increased risk of dying was found in groups I, II and IV in patients with exercise associated major ventricular arrhythmias and/or with a small increase of the pressure-rate-product (PRP) during exercise. Patients without arrhythmias and with a high increase of the PRP had a low mortality rate irrespective of their ST-response. In the older patients (70-years-old or more) the ST-response was of no prognostic value at all. The ST-segment response was thus generally of limited value in the prognostic management of the present patients. Their survival was mainly determined by the other exercise variables-the magnitude of an exercise index of left ventricular function and the occurrence of ventricular arrhythmias.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Electrocardiografía
/
Corazón
/
Infarto del Miocardio
Tipo de estudio:
Prognostic_studies
Límite:
Adult
/
Aged
/
Humans
/
Middle aged
Idioma:
En
Revista:
Eur Heart J
Año:
1983
Tipo del documento:
Article