Prevalence of arrhythmias during 24-hour electrocardiographic monitoring and exercise testing in patients with obstructive and nonobstructive hypertrophic cardiomyopathy
| Autor: | Barry J. Maron, Daniel D. Savage, D J Myers, S E Epstein, Stuart F. Seides |
|---|---|
| Rok vydání: | 1979 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Heart disease Cardiomyopathy Cardiomegaly Ventricular tachycardia Syncope Electrocardiography Tachycardia Physiology (medical) Internal medicine Atrial Fibrillation Heart Septum medicine Left atrial enlargement Humans cardiovascular diseases Child Aged Monitoring Physiologic medicine.diagnostic_test business.industry Hypertrophic cardiomyopathy Arrhythmias Cardiac Atrial fibrillation Cardiomyopathy Hypertrophic Middle Aged medicine.disease Echocardiography Exercise Test cardiovascular system Cardiology Female Supraventricular tachycardia Cardiomyopathies Sleep Cardiology and Cardiovascular Medicine business |
| Zdroj: | Circulation. 59:866-875 |
| ISSN: | 1524-4539 0009-7322 |
| DOI: | 10.1161/01.cir.59.5.866 |
| Popis: | Many patients with hypertrophic cardiomyopathy die suddenly and unexpectedly, a significant number perhaps due to arrhythmia. Of 100 patients initially evaluated for signs or symptoms suggestive of heart disease or a family history of hypertrophic cardiomyopathy, 51 were selected solely because they met the echocardiographic criteria for the disease, and 49 patients were selected primarily because they had: 1) normal sinus rhythm despite left atrial enlargement, 2) a history of syncope, 3) a family history of premature death, or 4) a history of paroxysmal atrial fibrillation. All 100 patients were studied by 24-hour ambulatory electrocardiographic monitoring and 74 of them also underwent treadmill exercise testing. More than 50% of patients in repetitive ventricular premature depolarizations, including 19% who had ventricular tachycardia. Monitoring was superior to exercise testing for exposing these arrhythmias. Two patients experienced cardiac arrest within 2 months of monitoring; in each, monitoring had revealed ventricular tachycardia. Two patients with paroxysms of supraventricular tachycardia during monitoring developed fixed atrial fibrillation within 1 year. These preliminary observations suggest that monitoring may help identify patients at increased risk for significant arrhythmic events. |
| Databáze: | OpenAIRE |
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