Heart Rate Variability and Outcome in Acute Severe Stroke: Role of Power Spectral Analysis

Abstract

HRV measurements are independent predictors of outcome in acute severe stroke.

Modulation of Cardiac Autonomic Dysfunction in Ischemic Stroke following Ayurveda (Indian System of Medicine) Treatment

“…These findings of altered autonomic activity with increased sympathetic activation correlate with earlier studies on ischemic stroke [6, 14, 21, 22]. The aberrant neurocardiac regulation persists even in the postacute phase [23] and abnormal heart rate dynamics has also been associated with poststroke mortality [24].…”

“…The resting heart rate (HR) and blood pressure (BP) recordings were carried out in the autonomic laboratory, Department of Neurophysiology, NIMHANS under standardized conditions [14, 15]. Patients were advised to abstain from alcohol and nicotine for 24 hours before evaluation.…”

Automated diagnosis of coronary artery disease using tunable-Q wavelet transform applied on heart rate signals

“…Other than heart disorders, the heart rate signals can be used for diagnosis of diseases like diabetic neuropathies, and depression [10,[12][13][14][15]. They are cheap and can be acquired from ECG signals.…”

Watching neutral and threatening movies: Subjective experience and autonomic responses in subjects with different hypnotizability levels

“…Moreover, the clinical findings regarding the VLF content of heart rate variability as a predictor of cardiac health are not univocal. For instance, in post stroke patients (Gujjar et al, 2004) and in middle aged women with coronary disease (Janszky et al, 2004), the VLF spectral power positively correlates with mortality, while no relation has been found by other authors between VLF and future risk of sudden death (Björkander et al, 2009), and other studies have reported that low levels of VLF fluctuations might be associated with an adverse prognosis in patients with acute myocardial infarction (Bigger et al, 1992;Bonaduce et al, 1994;Carney et al, 2007).…”