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Atrial ectopy as a mediator of the association between race and atrial fibrillation.

Ectopy on a Single 12-Lead ECG, Incident Cardiac Myopathy, and Death in the Community.

Overnight Holter Electrocardiography: An Opportunity for Early Sleep Apnea Diagnosis and Treatment..

Erratum: Genetic loci associated with heart rate variability and their effects on cardiac disease risk.

Addition of 24-Hour Heart Rate Variability Parameters to the Cardiovascular Health Study Stroke Risk Score and Prediction of Incident Stroke: The Cardiovascular Health Study.

Genetic loci associated with heart rate variability and their effects on cardiac disease risk.

Association of Holter-Derived Heart Rate Variability Parameters With the Development of Congestive Heart Failure in the Cardiovascular Health Study.

Bone Mineral Density and Risk of Heart Failure in Older Adults: The Cardiovascular Health Study.

A Hidden Markov Model for Seismocardiography.

Reference values of heart rate variability.

Blunted cyclic variation of heart rate predicts mortality risk in post-myocardial infarction, end-stage renal disease, and chronic heart failure patients.

Electrocardiographic Predictors of Incident Atrial Fibrillation.

K(ATP) channel gain-of-function leads to increased myocardial L-type Ca(2+) current and contractility in Cantu syndrome.

Nighttime heart rate predicts response to depression treatment in patients with coronary heart disease.

Consumption of Caffeinated Products and Cardiac Ectopy.

High-Fidelity Analysis of Perioperative QTc Prolongation..

Autonomic dysfunction in early breast cancer: Incidence, clinical importance, and underlying mechanisms..

Ventricular Ectopy as a Predictor of Heart Failure and Death.

Response to letter regarding article, “physical activity and heart rate variability in older adults: the cardiovascular health study”..

Association between left atrial abnormality on ECG and vascular brain injury on MRI in the Cardiovascular Health Study.

Empirically supported psychological treatments: the challenge of evaluating clinical innovations.

Heart rate variability measured early in patients with evolving acute coronary syndrome and 1-year outcomes of rehospitalization and mortality.

Heart rate variability measurement and clinical depression in acute coronary syndrome patients: narrative review of recent literature.

Nocturnal patterns of heart rate and the risk of mortality after acute myocardial infarction.

Physical activity and heart rate variability in older adults: the Cardiovascular Health Study.

Mindfulness may both moderate and mediate the effect of physical fitness on cardiovascular responses to stress: a speculative hypothesis.

Imputing observed blood pressure for antihypertensive treatment: impact on population and genetic analyses.

Atrial ectopy as a predictor of incident atrial fibrillation: a cohort study.

Impact of inflammatory biomarkers on relation of high density lipoprotein-cholesterol with incident coronary heart disease: cardiovascular Health Study.

Heart rate variability in risk stratification of cardiac patients.

The St. Louis African American health-heart study: methodology for the study of cardiovascular disease and depression in young-old African Americans.

Prognostic value of heart rate turbulence for risk assessment in patients with unstable angina and non-ST elevation myocardial infarction.

Cardiomyocyte injury assessed by a highly sensitive troponin assay and sudden cardiac death in the community: the Cardiovascular Health Study.

Recurrent life-threatening hyperkalemia without typical electrocardiographic changes.

Inflammation and sudden cardiac death in a community-based population of older adults: the Cardiovascular Health Study.

Challenges of heart rate variability research in the ICU.

Multi-scale heart rate dynamics detected by phase-rectified signal averaging predicts mortality after acute myocardial infarction.

Interactive associations of depression and sleep apnea with adverse clinical outcomes after acute myocardial infarction.

Heart rate variability changes at 2400 m altitude predicts acute mountain sickness on further ascent at 3000-4300 m altitudes.

Sleep apnea: what does that really mean? A commentary on Baranchuk: “Sleep apnea, cardiac arrhythmias, and conduction disorders”.

Trans-fatty acid consumption and heart rate variability in 2 separate cohorts of older and younger adults.

Heart rate response to a timed walk and cardiovascular outcomes in older adults: the cardiovascular health study.

Cardiovascular physiology in premotor Parkinson’s disease: a neuroepidemiologic study.

Mental Stress and Exercise Training Response: Stress-sleep Connection may be Involved.

Caloric restriction may reverse age-related autonomic decline in humans.

Clinical application of heart rate variability after acute myocardial infarction.

Origin of heart rate variability and turbulence: an appraisal of autonomic modulation of cardiovascular function.

Increased non-gaussianity of heart rate variability predicts cardiac mortality after an acute myocardial infarction.

Assessment of autonomic control of the heart during transient myocardial ischemia.

Obstructive sleep apnea/hypopnea syndrome and poor response to sertraline in patients with coronary heart disease.

Untreated hypertension decreases heritability of cognition in late middle age.

Association of the metabolic syndrome with age-related, nonatherosclerotic, chronic medical conditions.

Heart rate variability, sleep and sleep disorders.

Depression and heart rate variability in cardiac rehabilitation patients: exploring the roles of physical activity and fitness.

Relationship of abnormal heart rate turbulence and elevated CRP to cardiac mortality in low, intermediate, and high-risk older adults.

Heart rate variability and longevity.

Effect of omega-3 fatty acids on heart rate variability in depressed patients with coronary heart disease.

Autonomic nervous system dysfunction and inflammation contribute to the increased cardiovascular mortality risk associated with depression.

Genetic vulnerability and phenotypic expression of depression and risk for ischemic heart disease in the Vietnam era twin study of aging.

New York Heart Association functional class influences the impact of diabetes on cardiac autonomic function.

Association of Holter-based measures including T-wave alternans with risk of sudden cardiac death in the community-dwelling elderly: the Cardiovascular Health Study.

Objective measures of disordered sleep in fibromyalgia.

Association between symptoms of depression and anxiety with heart rate variability in patients with implantable cardioverter defibrillators.

Usefulness of abnormal heart rate turbulence to predict cardiovascular mortality in high-risk patients with acute myocardial infarction and left ventricular dysfunction (from the EPHESUS study).

Frailty and impaired cardiac autonomic control: new insights from principal components aggregation of traditional heart rate variability indices.

Stratification pattern of static and scale-invariant dynamic measures of heartbeat fluctuations across sleep stages in young and elderly.

Physiological complexity underlying heart rate dynamics and frailty status in community-dwelling older women.

Heart rate variability and its changes over 5 years in older adults.

Increased ventricular premature contraction frequency during rem sleep in patients with coronary artery disease and obstructive sleep apnea.

Nighttime heart rate and survival in depressed patients post acute myocardial infarction.

Reduced heart rate multiscale entropy predicts death in critical illness: a study of physiologic complexity in 285 trauma patients.

Novel measures of heart rate variability predict cardiovascular mortality in older adults independent of traditional cardiovascular risk factors: the Cardiovascular Health Study (CHS).

Ambulatory ECG-based T-wave alternans predicts sudden cardiac death in high-risk post-MI patients with left ventricular dysfunction in the EPHESUS study.

Autonomic information flow improves prognostic value of heart rate patterns after abdominal aortic surgery.

Measures of parasympathetic function and risk stratification in critical care.

Development of more erratic heart rate patterns is associated with mortality post-myocardial infarction.

Dietary fish and omega-3 fatty acid consumption and heart rate variability in US adults.

Autonomic information flow rhythms. From heart beat interval to circadian variation.

Cardiac autonomic modulation. Analyzing circadian and ultradian rhythms.

Higher levels of inflammation factors and greater insulin resistance are independently associated with higher heart rate and lower heart rate variability in normoglycemic older individuals: the Cardiovascular Health Study.

Association between short term and long term communication in pathological autonomic control.

Interactions between short-term and long-term cardiovascular control mechanisms.

The relationship of heart rate and heart rate variability to non-diabetic fasting glucose levels and the metabolic syndrome: the Cardiovascular Health Study.

Heart rate variability and markers of inflammation and coagulation in depressed patients with coronary heart disease.

Demonstration of circadian rhythm in heart rate turbulence using novel application of correlator functions.

Heart rate turbulence, depression, and survival after acute myocardial infarction.

Diastolic dysfunction and autonomic abnormalities in patients with systolic heart failure.

Complex autonomic dysfunction in cardiovascular, intensive care, and schizophrenic patients assessed by autonomic information flow.

Circadian and ultradian rhythms in heart rate variability.

Vagal modulation and aging.

Non-linear heart rate variability and risk stratification in cardiovascular disease.

Cerebrospinal fluid corticotropin-releasing factor concentration is associated with pain but not fatigue symptoms in patients with fibromyalgia.

Dietary fish and n-3 fatty acid intake and cardiac electrocardiographic parameters in humans.

Depression and obstructive sleep apnea in patients with coronary heart disease.

Sometimes higher heart rate variability is not better heart rate variability: results of graphical and nonlinear analyses.

Potential role of different components of heart rate variability for risk-stratification in critical care.

Vagal tone: myths and realities.

Low heart rate variability and the effect of depression on post-myocardial infarction mortality.

Characteristics of heart beat intervals and prediction of death.

QT dynamicity: a prognostic factor for sudden cardiac death in chronic heart failure.

Traditional and nonlinear heart rate variability are each independently associated with mortality after myocardial infarction.

Heart rate variability: measurement and clinical utility.

Sex effects on heart rate variability in fibromyalgia and Gulf War illness.

Increased randomness of heart rate could explain increased heart rate variability preceding onset of atrial fibrillation.

Structural relationships between measures based on heart beat intervals: potential for improved risk assessment.

Including patients with diabetes mellitus or coronary artery bypass grafting decreases the association between heart rate variability and mortality after myocardial infarction.

Effect of cognitive behavioral therapy on heart rate variability during REM sleep in female rape victims with PTSD.

A simple method to identify sleep apnea using Holter recordings.

Heart rate turbulence: explorations of an emerging risk factor.

Circadian rhythm in the cardiovascular system: chronocardiology.

Effects of depression on QT interval variability after myocardial infarction.

Relation between pet ownership and heart rate variability in patients with healed myocardial infarcts.

Heart rate variability in critical illness and critical care.

Autonomic nervous system responses during sedative infusions of dexmedetomidine.

Circadian rhythm in the cardiovascular system: considerations in non-invasive electrophysiology.

Assessing heart rate variability from real-world Holter reports.

Depression, heart rate variability, and acute myocardial infarction.

Association between heart rate variability recorded on postoperative day 1 and length of stay in abdominal aortic surgery patients. 

Change in heart rate and heart rate variability during treatment for depression in patients with coronary heart disease.

Severe depression is associated with markedly reduced heart rate variability in patients with stable coronary heart disease.

Clinical and demographic determinants of heart rate variability in patients post myocardial infarction: insights from the cardiac arrhythmia suppression trial (CAST).

Anxiety, depression, and heart rate variability.

Sudden death, arrhythmic events and measurements of heart rate variability.

Assessment of ultra low frequency band power of heart rate variability: validation of alternative methods.

Effect of exercise training on heart rate variability in healthy older adults.

Changes in 24-hour heart rate variability during normal pregnancy.

Insights from the study of heart rate variability.

Increased high-frequency power may not reflect increased vagal tone.

RR interval dynamics before atrial fibrillation in patients after coronary artery bypass graft surgery.

Heart rate variability reflects severity of COPD in PiZ alpha1-antitrypsin deficiency.

Differing effects of age on heart rate variability in men and women.

Heart rate variability is independent of age, gender, and race in congestive heart failure with a recent acute exacerbation.

Effect of 21 mg transdermal nicotine patches and smoking cessation on heart rate variability.

Heart rate variability in a case of pheochromocytoma.

Alterations in heart rate variability in patients undergoing dobutamine stress echocardiography, including patients with neurocardiogenic hypotension.

Stability of index of heart rate variability in patients with congestive heart failure.

RR variability in healthy, middle-aged persons compared with patients with chronic coronary heart disease or recent acute myocardial infarction.

Effect of moricizine on heart rate variability in normal subjects.

Alterations in temporal patterns of heart rate variability after coronary artery bypass graft surgery.

Inferring vagal tone from heart rate variability

Heart rate variability changes in association with ST segment depression during cesarean section under regional anesthesia.

Heart rate variability: a measure of cardiac autonomic tone.

Heart rate variability in patients with orthotopic heart transplantation: long-term follow-up.

Heart-rate and blood-pressure responses to speech alone compared with cognitive challenges in the Stroop task.

Effects of digoxin and enalapril on heart period variability and response to head-up tilt in normal subjects.

The effect of participation in an exercise training program on cardiovascular reactivity in sedentary middle-aged males.

Time domain measurements of heart rate variability.