The prevalence and prognostic significance of arrhythmias in Duchenne type muscular dystrophy
Autor: | Masayuki Yotsukura, Masahito Miyagawa, Kyozo Ishikawa, Tadayuki Ishihara, Chiaki Shirato, Teruo Aoyagi, Tsuneo Tsuya, Atsuo Yanagisawa |
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Rok vydání: | 1992 |
Předmět: |
Adult
Male Cardiac Complexes Premature medicine.medical_specialty Adolescent Heart disease Duchenne muscular dystrophy Ventricular tachycardia Sudden death Muscular Dystrophies Internal medicine Prevalence medicine Humans cardiovascular diseases Muscular dystrophy Child medicine.diagnostic_test business.industry Incidence (epidemiology) Arrhythmias Cardiac Prognosis medicine.disease Surgery Death Sudden Cardiac Electrocardiography Ambulatory cardiovascular system Cardiology Cardiology and Cardiovascular Medicine Complication business Electrocardiography Follow-Up Studies |
Zdroj: | American Heart Journal. 124:1244-1250 |
ISSN: | 0002-8703 |
Popis: | To investigate the prevalence and prognostic significance of cardiac arrhythmias in Duchenne type muscular dystrophy 24-hour ambulatory ECG was performed in 80 patients with Duchenne type muscular dystrophy, and they were followed up for 5 years. Various arrhythmias were observed in 63.8% (51 of 80) of the patients. Ventricular premature beats were found in 30% (24 of 80), and the incidence of ventricular premature beats increased as the clinical severity of skeletal muscle involvement advanced. Forty-seven patients survived for 5 years, but the incidence of arrhythmias increased from 38.3% (18 of 47) to 74.5% (35 of 47) (p < 0.001). During the 5-year period, four of 33 deaths were sudden. Malignant ventricular premature beats (ventricular couplets, ventricular tachycardia, and R-on-T-type ventricular premature beats) were observed in three of these four patients. It appears that cardiac arrhythmias are a common complication of Duchenne type muscular dystrophy and that the incidence of ventricular arrhythmias increases with the progression of myocardial involvement. There is an association between ventricular arrhythmias and sudden death, but the reduction of ventricular arrhythmias may not reduce the incidence of episodes of sudden death. |
Databáze: | OpenAIRE |
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