Abstract
The study population comprises 28 patients with sarcoidosis who all had repolarization disturbances in their exercise ECGs. None of the patients had hypertension or known cardiovascular disease, and all but two were non-smokers. The mean age was 45 years. Exercise test with beta-adrenergic blockade was performed within one month of the first examination. Persisting abnormal ST-T changes in exercise ECGs after beta-blockade were seen in 12 (43%) patients. No significant relationship was found between persisting ST-T changes and age, sex, chest X-ray stage, lung function or working capacity. In an earlier study, we found ST-T abnormalities in exercise ECG in 56 of 127 individuals (44%) in a consecutive 5-year study of patients with newly detected sarcoidosis. From this and the present report we postulate that, in our region, as much as 20% of the patients with newly detected sarcoidosis might have organic myocardial disease, possibly of sarcoid origin, as shown by repolarization disturbances in exercise ECG. If ECG abnormalities in the ST-T region are present in patients with sarcoidosis, exercise ECG with beta-blockade is a simple way of establishing suspicion of organic myocardial lesions. If exercise ECG abnormalities in the ST-T region persist after beta-blockade, careful clinical follow-up is recommended, and, in some patients early steroid therapy should be considered.
Published Version
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