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Sleep restriction reduces heart rate variability
06-13-2007 · EurekAlert!Chronic sleep restriction has a negative effect on a person's cardiac activity, which may elevate the risk of cardiovascular disease and mortality.
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Keywords: sleep, restriction, heart, rate, variability
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- Link between a sleep-related breathing disorder and increased heart rate variability
11-01-2007 · EurekAlert!
A sleep-related breathing disorder, common in heart failure, increases one's heart rate variability. Further, central sleep apnea and obstructive sleep apnea produce different patterns of heart rate variability, which are likely to reflect the different pathophysiological mechanisms involved.
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- Treating depression may improve recovery of heart rate variability following coronary syndromes
09-03-2007 · EurekAlert!
Patients with depression appear to have an impaired ability to recover their heart rate variability following acute coronary syndromes such as heart attack, a factor that could increase their risk of coronary death, according to a report in the September issue of Archives of General Psychiatry, one of the JAMA/Archives journals. However, patients who are treated with antidepressants or whose mood lifts may experience more of an improvement in heart rate variability than those who are untreated or remain depressed.
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- Listen to your heart: Researchers discover a physiological indicator of vulnerability to temptation
03-21-2007 · EurekAlert!
A measure of cardiac regulation called 'heart rate variability' (HRV) appears to be linked to self regulation. HRV was considerably higher when people were working to resist temptation.
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- Undiagnosed OSA patients have altered cardiovascular responses during exercise recovery
01-01-2008 · EurekAlert!
People with untreated obstructive sleep apnea have altered cardiovascular responses during recovery from maximal exercise. These results suggest an imbalance in the autonomic control of heart rate during recovery, and may be an early clinical sign of the progression of OSA.
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- Fetal heart rate yields clues to children's later development
11-15-2007 · EurekAlert!
New findings have linked fetal heart rate variation to children’s rate of development in the toddler years. Scientists measured the fetal heart rate and variability in fetuses of healthy women at 20 through 38 weeks of gestation. Follow up measurements of mental, motoR and language ability were examined in children born to these women at ages 24 and 36 months. Differences in variation of heart rate predicted the rate of developmental progress, including language ability.
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- Emergency angioplasty use rises, but some patients still miss out
08-03-2007 · EurekAlert!
Compared with their counterparts a decade ago, today's heart attack patients are receiving emergency angioplasty or clot-busting drugs to reopen clogged arteries at a far greater rate, but 10 percent of patients who could benefit from this life-saving treatment still do not receive it, according to a study published in the American Journal of Medicine by Yale and University of Michigan researchers.
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- Scientists associate 6 new genetic variants with heart disease risk factor
01-13-2008 · EurekAlert!
Using new techniques for rapidly scanning the human genome, researchers have associated levels of cholesterol and triglycerides, two fats in the blood, to 18 genetic variants, six of which represent new DNA regions never before associated with the traits. The findings help explain some of the variability in cholesterol and triglyceride levels that arises from genes.
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- OSA and the heart problems it can lead to; Improving new mothers and their babies' sleep
12-01-2006 · EurekAlert!
The first study finds that daytime sleepiness in OSA patients can lead to heart problems. The second study finds that a behavioral educational intervention may improve the sleep of new mothers and their babies.
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- Women's mortality rates for cardiovascular disease differ widely among hospitals
06-25-2007 · EurekAlert!
Women treated for cardiovascular disease at the nation's best- performing hospitals have a 39 percent lower risk-adjusted mortality rate when compared with women at the nation's poorest-performing hospitals, according to the fourth annual HealthGrades Women's Health Outcomes in US Hospitals study, released today.The study also found that, for women, the largest quality gaps between the best-performing and poorest-performing hospitals were in heart failure and interventional cardiology procedures.
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- Statewide program helps improve quality of care for heart attack
11-04-2007 · EurekAlert!
Implementation of a program in North Carolina to increase the rate of coronary reperfusion for heart attack significantly improved the quality of care these patients received, according to a study in JAMA being released early online to coincide with its release at the American Heart Association's annual meeting. The study will be published in the Nov. 28 print issue of JAMA.
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