AUTONOMIC NERVE MODULATION DEMONSTRATED BY TILT TABLE TEST IN PAROXYSMAL ATRIAL FIBRILLATION
نویسندگان
چکیده
منابع مشابه
Autonomic tone variations before the onset of paroxysmal atrial fibrillation.
BACKGROUND Mechanisms favoring the occurrence of paroxysmal atrial fibrillation (PAF) are complex and poorly defined. This study was designed to analyze dynamic changes in autonomic tone preceding the onset of PAF in a large group of patients. METHODS AND RESULTS Holter tapes from 77 unselected consecutive patients (63 men and 14 women aged 58+/-12 years) with PAF were analyzed. A total of 14...
متن کاملAutonomic modulation of the atrial cycle length by the head up tilt test: non-invasive evaluation in patients with chronic atrial fibrillation.
OBJECTIVE To determine the effects of upright posture compared with supine position on the dominant atrial cycle length (DACL) in patients with chronic atrial fibrillation. DESIGN The power/frequency spectrum of QRST suppressed lead V1 ECG was studied in 14 patients in the supine position and during the head up tilt table test. The DACL changes were compared with changes in heart rate and blo...
متن کاملEffects of acute autonomic modulation on atrial conduction delay and local electrograms duration in paroxysmal atrial fibrillation.
UNLABELLED Slowed atrial conduction may contribute to reentry circuits and vulnerability for atrial fibrillation (AF). The autonomic nervous system (ANS) has modulating effects on electrophysiological properties. However, complex interactions of the ANS with the arrhythmogenic substrate make it difficult to understand the mechanisms underlying induction and maintenance of AF. AIM To determine...
متن کاملFocal Impulse and Rotor Modulation for Paroxysmal Atrial Fibrillation
Therapy for atrial fibrillation (AF) remains suboptimal, largely because of uncertainty in its mechanisms. While the ‘‘triggers’’ versus ‘‘substrate’’ debate continues to rage, it is not clear that this is central. All supraand ventricular arrhythmias are initiated from sinus rhythm by ‘‘triggers,’’ and successful therapy targets their sustaining mechanisms rather than triggers. Paroxysmal AF, ...
متن کاملSuppression of Paroxysmal Atrial Fibrillation by Pacing
Atrial Fibrillation (AF) affects approximately five million people worldwide. The incidence of AF increases with aging and more common in males.1 Atrial fibrillation is the most common cardiogenic cause of stroke and exacerbates heart failure. Despite the prevalence of AF, it is still one of the most difficult arrhythmia to treat.2 The management option of AF ranges from pharmacological therapy...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 2011
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(11)60084-3