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Exercise-induced T-wave normalization predicts recovery of regional contractile function after anterior myocardial infarction
- Publication Year :
- 1998
-
Abstract
- Aims We investigated the ability of T-wave pseudonormalization and ST-segment elevation, which are demonstrated in infarct-related leads during submaximal exercise testing, to predict late recovery of contractile function. Methods We studied 88 consecutive patients (73 males, mean age 59+/-8 years) with anterior infarction, persistent T-wave inversion and a documented lesion of the proximal segment of the left anterior descending coronary artery. They all underwent 2D-echocardiography on admission, 4 weeks as well as 6 months after myocardial infarction to evaluate the dysfunction score and the ejection fraction. Submaximal (75% of maximal predicted heart rate) exercise testing was performed in 80 patients 2 weeks after myocardial infarction following discontinuation of treatment. Results During exercise testing, 59 of the 88 patients showing negative T-waves on the resting electrocardiogram exhibited pseudonormalization (group A) in at least three adjacent precordial leads, whilst 29 (group B) did not. Patients of group A more frequently exhibited an early creatine kinase peak (41% vs 24%, P
- Subjects :
- Male
medicine.medical_specialty
Myocardial Infarction
Infarction
Anterior Descending Coronary Artery
Coronary Angiography
Electrocardiography
Predictive Value of Tests
Internal medicine
Heart rate
medicine
Humans
Myocardial infarction
Prospective Studies
Aged
Ultrasonography
Ejection fraction
medicine.diagnostic_test
biology
business.industry
ST elevation
Middle Aged
medicine.disease
Myocardial Contraction
Cardiology
biology.protein
Exercise Test
Creatine kinase
Female
Cardiology and Cardiovascular Medicine
business
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....169ccfcf80034022a83331ce884b9c9f