Journal of cardiovascular electrophysiology
-
J. Cardiovasc. Electrophysiol. · Aug 2003
Clinical TrialCircadian profile of cardiac autonomic nervous modulation in healthy subjects: differing effects of aging and gender on heart rate variability.
Circadian Profile of Heart Rate Variability. ⋯ Normal aging is associated with a constant decline of cardiac vagal modulation due to a significant decrease of nocturnal parasympathetic activity. The significant gender-related difference of HRV decreases with aging. These findings emphasize the need to determine age-, gender-, and nycthemeral-dependent normal ranges for HRV assessment.
-
J. Cardiovasc. Electrophysiol. · Aug 2003
Randomized Controlled Trial Clinical TrialBiphasic versus monophasic cardioversion in shock-resistant atrial fibrillation:.
Biphasic versus Monophasic Cardioversion. ⋯ An ascending sequence of 150-, 200-, and 360-J transthoracic biphasic cardioversion shocks are successful more often than a single 360-J monophasic shock. Thus, biphasic shocks should be the recommended configuration of choice for all cardioversions.