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[Exercise test in women with abnormal ecg (author's transl)]
Giornale Italiano Di Cardiologia
|January 1, 1980
Summary
This study found that resting repolarization abnormalities do not affect exercise stress test outcomes in women. However, flat or diphasic T waves on resting ECGs may indicate a higher likelihood of positive stress test results.
Area of Science:
- Cardiology
- Exercise Physiology
Context:
- Abnormal resting electrocardiograms (ECG) are common in women.
- Exercise stress testing is a key diagnostic tool for coronary artery disease.
Purpose:
- To investigate the impact of resting repolarization abnormalities on exercise stress test results in women.
- To identify baseline ECG characteristics associated with positive stress test outcomes.
Summary:
- 114 women with abnormal resting ECGs underwent maximal or submaximal bicycle ergometry.
- A positive stress test was defined as ≥1 mm ischemic ST segment depression.
- The test was positive in 10.7% of subjects, primarily in those with typical angina (85.7%) and atypical chest pain (7.5%).
- Resting repolarization abnormalities, excluding hypertrophy, conduction disturbances, and drugs, did not alter stress test outcomes.
- Flat or diphasic T waves on resting ECGs were associated with a higher prevalence of ischemic patterns during exercise.
- Patients with positive stress tests showed a greater prevalence of resting hypertension and arrhythmias.
Impact:
- Resting ECG findings, particularly T-wave morphology, can help stratify risk for positive exercise stress tests in women.
- This research refines the interpretation of exercise stress tests in women with pre-existing ECG abnormalities.
- Understanding these associations can improve diagnostic accuracy and patient management.