Frequency domain measures of heart period variability and mortality after myocardial infarction.

Abstract

Background. We studied 715 patients 2 weeks after myocardial infarction to establish the associations between six frequency domain measures of heart period variability (HPV) and mortality during 4 years of follow-up.Methods and Results. Each measure of HPV had a significant and at least moderately strong univariate association with all-cause mortality, cardiac death, and arrhythmic death. Power in the lower-frequency bands -ultra low frequency (ULF) and very low frequency (VLF) powerhad stronger associations with all three mortality end points than power in the higherfrequency bands -low frequency (LF) and high frequency (HF) power. The 24-hour total power also had a significant and strong association with all three mortality end points. VLF power was the only variable that was more strongly associated with arrhythmic death than with cardiac

New Hope for Correctional Officers: An Innovative Program for Reducing Stress and Health Risks

“…Reduced power in the very low frequency band has been shown to have a stronger association with all-cause mortality than the low frequency and high frequency bands. In addition, low power in the very low frequency band has been shown to be associated with arrhythmically mediated death (Bigger et al 1992). …”

Characteristics of Autonomic Nervous System Activity in Men With Lower Urinary Tract Symptoms (LUTS): Analysis of Heart Rate Variability in Men With LUTS

“…13 The clinical importance of HRV became apparent in the late 1980s when HRV was confirmed to be a strong, independent predictor of mortality following acute myocardial infarction. [14][15][16] Most investigators have suggested that HF and RMSSD are predominantly a response to changes in parasympathetic tone, whereas LF and SDNN are dually influenced by cholinergic and adrenergic activities, as well as by other physiological inputs. The values of TP are similar to those of SDNN; they affect control of the autonomic nervous system.…”

Measures of cardiovascular autonomic nervous function: agreement, reproducibility, and reference values in middle age and elderly subjects

“…Besides their application in the assessment of cardiovascular autonomic function in diabetic patients, HRV and BRS are used in cardiology for risk stratification after myocardial infarction. Low HRV is associated with mortality risk in post-myocardial infarction patients [23,24] and also in the general population [25,26]. Also, autonomic neuropathy has been proposed to play a role in the aetiology of cardiovascular disease [27,28,29,30,31] and nephropathy [32,33] in diabetes.…”