Low heart rate variability and sudden cardiac death

Singer, Donald H.; Martin, Gary J.; Magid, Norman M.; Weiss, Jerry; Schaad, John W.; Kehoe, Richard F.; Zheutlin, Terry; Fintel, Dan J.; Hsieh, Ann Ming; Lesch, Michael

doi:10.1016/0022-0736(88)90055-6

Cited by 180 publications

(79 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The lowered HRV may also lead to some negative consequences. A number of prospective studies indicate that for patients with cardiovascular abnormalities in 24 h ECG monitoring, which are accompanied by a decreased HRV, the risk of a sudden cardiac death is twice as high as in patients with similar ventricular arrhythmias but normal HRV value [17]. The risk of a sudden cardiac death is higher also in the healthy subjects with lower HRV [18].…”

Section: Discussionmentioning

confidence: 99%

Heart rate variability (HRV) analysis in radio and TV broadcasting stations workers

Bortkiewicz¹,

Gadzicka²,

Szymczak³

et al. 2012

International Journal of Occupational Medicine and Environmental Health

View full text Add to dashboard Cite

Objectives: The aim of the study was to assess the mechanism of cardiovascular impairments in workers exposed to UHF-VHF radio frequency electromagnetic fields (EMF). Materials and Methods: Heart rate variability (HRV) was analysed using 512 normal heart beats registered at rest. The analysis concerned time-domain (STD R-R) and frequencydomain (VLF, LF, HF) parameters of HRV. Fifty nine workers (group I) with low-level and 12 workers (group II) with highlevel exposure were examined. The mean age of the subjects was 47±9 years and 41±14 years, and mean exposure duration 19.1±8.8 years and 13±4 years, in groups I and II, respectively. The groups were divided according to: E max , E dose , E mean for frequencies UHF, VHF and UHF+VHF: The control group consisted of 42 non-exposed subjects, aged 49±8 years. Statistical analysis comprised one-way analysis of variance, covariance analysis and logistic regression models. Results: In the exposed groups, the heart rate was higher than in the control one. Standard deviation of R-R intervals (STD R-R) was found to be significantly (p = 0.0285) lower in group I (42.5±24.7 ms) compared to the control group (62.9±53.5 ms). The risk of lowered STD R-R was significantly increased (OR = 2.37, p = 0.023) in group II. Both exposed groups presented significantly higher VLF and LF values than the control group (p = 0.005 and p = 0.0025, respectively). The EMF-exposed groups were characterised by the dominance of the sympathetic system (LF/HF 1.3±0.35). Conclusions: The results indicate that exposure to radiofrequency EMF may affect the neurovegetative regulation.

show abstract

Section: Discussionmentioning

confidence: 99%

Heart rate variability (HRV) analysis in radio and TV broadcasting stations workers

Bortkiewicz¹,

Gadzicka²,

Szymczak³

et al. 2012

International Journal of Occupational Medicine and Environmental Health

View full text Add to dashboard Cite

show abstract

“…Of the officers whose HRV were analyzed, 8% were considered to be at increased risk for sudden cardiac death (Singer et al 1988;Villareal et al 2002). Furthermore, from the analysis of the ECG, one officer was identified as having significant ECG abnormalities.…”

Section: Low Frequency/high Frequency Ratiomentioning

confidence: 99%

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

McCraty

Atkinson

Lipsenthal

et al. 2009

Appl Psychophysiol Biofeedback

116

100

View full text Add to dashboard Cite

This study investigated the impact of a new stress management program on physiological and psychological stress and health risk factors among 75 correctional officers. The experimental group received training in emotion self-regulation techniques intended to reduce stress and health risk factors. Practice of the techniques was enhanced by heart rate variability feedback, which helped participants learn and sustain use of the self-management tools. Measures of physiological stress included cortisol, DHEA, cholesterol, triglycerides, fasting glucose levels, 10-min resting electrocardiogram, heart rate variability, and blood pressure. Three psychological questionnaires assessed emotional stress and work-related variables. There were significant improvements in the experimental group in cholesterol, glucose, heart rate, blood pressure and positive outlook and significant reductions in overall psychological distress. There were significant increases in productivity, motivation, goal clarity, and perceived support. The mean difference between pre-and post-intervention projected health care costs was calculated to be $1,179 per employee per year.

show abstract

“…HRV has been shown to be decreased in patients with heart failure ( Casolo, 1995 ) and in postmyocardial infarction patients . Decreased HRV after acute myocardial infarction is also a risk factor for subsequent morbidity and mortality ( Singer and Ori, 1995;Vybiral and Glaeser, 1995 ). Observations of altered HR or HRV in relation to particulate air pollution would help piece together the causal chain linking air pollution, alterations in blood parameters, and heart function.…”

Section: Introductionmentioning

confidence: 99%

Exposure of chronic obstructive pulmonary disease patients to particles: Respiratory and cardiovascular health effects

Bräuer

Ebelt

Fisher

et al. 2001

J Expo Sci Environ Epidemiol

109

View full text Add to dashboard Cite

To examine hypotheses regarding air pollution health effects, we conducted an exploratory study to evaluate relationships between personal and ambient concentrations of particles with measures of cardiopulmonary health in a sample of patients with chronic obstructive pulmonary disease ( COPD ) . Sixteen currently non -smoking COPD patients ( mean age = 74 ) residing in Vancouver were equipped with a particle ( PM 2.5 ) monitor for seven 24 -h periods. Subjects underwent ambulatory heart monitoring, had their lung function and blood pressure ( BP ) measured, and recorded symptoms and medication use. Ambient PM 2.5 , PM 10 , sulfate, and gaseous pollutant concentrations were monitored at five sites within the study area. Although no associations between air pollution and lung function were statistically significant, an estimated effect of 3% and 1% declines in daily FEV 1 change ( ÁFEV 1 ) for each 10 g / m 3 increase in ambient PM 10 and PM 2.5 , respectively, was observed. Increases of 1 g / m 3 in personal or ambient sulfate were associated with 1.0% and 0.3% declines in ÁFEV 1 , respectively. Weak associations were observed between particle concentrations and increased supraventricular ectopic heartbeats and with decreased systolic BP. No consistent associations were observed between any particle metric and diastolic BP, heart rate, or heart rate variability ( r -MSSD or SDNN ) , symptom severity, or bronchodilator use. Of the pollutants measured, ambient PM 10 was most consistently associated with health parameters; the use of personal exposures did not improve the strength of any associations or lead to increased effect estimates.

show abstract

Low heart rate variability and sudden cardiac death

Cited by 180 publications

References 36 publications

Heart rate variability (HRV) analysis in radio and TV broadcasting stations workers

Heart rate variability (HRV) analysis in radio and TV broadcasting stations workers

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

Exposure of chronic obstructive pulmonary disease patients to particles: Respiratory and cardiovascular health effects

Contact Info

Product

Resources

About