Heart rhythm : the official journal of the Heart Rhythm Society
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Multicenter Study
Heart rate turbulence predicts all-cause mortality and sudden death in congestive heart failure patients.
Abnormal heart rate turbulence (HRT) has been documented as a strong predictor of total mortality and sudden death in postinfarction patients, but data in patients with congestive heart failure (CHF) are limited. ⋯ HRT is a potent risk predictor for both heart failure and arrhythmic death in patients with class II and III CHF.
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Sudden cardiac arrest is the leading cause of death in young athletes. However, limited studies have examined survival rates after exercise-related sudden cardiac arrest in the youth. ⋯ Survival following exercise-related sudden cardiac arrest in the youth has been universally poor over the last 7 years in the United States, despite a recent trend toward improved survival. Improved reporting systems are needed to accurately monitor these events, and strategies to improve outcomes from exercise-related sudden cardiac arrest in the youth, such as improved emergency response planning and public access defibrillation programs, should be considered.