A Hidden Markov Model for Seismocardiography. |
A simple method to identify sleep apnea using Holter recordings. |
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. |
Alterations in heart rate variability in patients undergoing dobutamine stress echocardiography, including patients with neurocardiogenic hypotension. |
Alterations in temporal patterns of heart rate variability after coronary artery bypass graft surgery. |
Ambulatory ECG-based T-wave alternans predicts sudden cardiac death in high-risk post-MI patients with left ventricular dysfunction in the EPHESUS study. |
Anxiety, depression, and heart rate variability. |
Assessing heart rate variability from real-world Holter reports. |
Assessment of autonomic control of the heart during transient myocardial ischemia. |
Assessment of ultra low frequency band power of heart rate variability: validation of alternative methods. |
Association between heart rate variability recorded on postoperative day 1 and length of stay in abdominal aortic surgery patients. |
Association between left atrial abnormality on ECG and vascular brain injury on MRI in the Cardiovascular Health Study. |
Association between short term and long term communication in pathological autonomic control. |
Association between symptoms of depression and anxiety with heart rate variability in patients with implantable cardioverter defibrillators. |
Association of Holter-based measures including T-wave alternans with risk of sudden cardiac death in the community-dwelling elderly: the Cardiovascular Health Study. |
Association of Holter-Derived Heart Rate Variability Parameters With the Development of Congestive Heart Failure in the Cardiovascular Health Study. |
Association of the metabolic syndrome with age-related, nonatherosclerotic, chronic medical conditions. |
Atrial ectopy as a mediator of the association between race and atrial fibrillation. |
Atrial ectopy as a predictor of incident atrial fibrillation: a cohort study. |
Autonomic dysfunction in early breast cancer: Incidence, clinical importance, and underlying mechanisms. |
Autonomic information flow improves prognostic value of heart rate patterns after abdominal aortic surgery. |
Autonomic information flow rhythms. From heart beat interval to circadian variation. |
Autonomic nervous system dysfunction and inflammation contribute to the increased cardiovascular mortality risk associated with depression. |
Autonomic nervous system responses during sedative infusions of dexmedetomidine. |
Blunted cyclic variation of heart rate predicts mortality risk in post-myocardial infarction, end-stage renal disease, and chronic heart failure patients. |
Bone Mineral Density and Risk of Heart Failure in Older Adults: The Cardiovascular Health Study. |
Caloric restriction may reverse age-related autonomic decline in humans. |
Cardiac autonomic modulation. Analyzing circadian and ultradian rhythms. |
Cardiomyocyte injury assessed by a highly sensitive troponin assay and sudden cardiac death in the community: the Cardiovascular Health Study. |
Cardiovascular physiology in premotor Parkinson’s disease: a neuroepidemiologic study. |
Cerebrospinal fluid corticotropin-releasing factor concentration is associated with pain but not fatigue symptoms in patients with fibromyalgia. |
Challenges of heart rate variability research in the ICU. |
Change in heart rate and heart rate variability during treatment for depression in patients with coronary heart disease. |
Changes in 24-hour heart rate variability during normal pregnancy. |
Characteristics of heart beat intervals and prediction of death. |
Circadian and ultradian rhythms in heart rate variability. |
Circadian rhythm in the cardiovascular system: chronocardiology. |
Circadian rhythm in the cardiovascular system: considerations in non-invasive electrophysiology. |
Clinical and demographic determinants of heart rate variability in patients post myocardial infarction: insights from the cardiac arrhythmia suppression trial (CAST). |
Clinical application of heart rate variability after acute myocardial infarction. |
Complex autonomic dysfunction in cardiovascular, intensive care, and schizophrenic patients assessed by autonomic information flow. |
Consumption of Caffeinated Products and Cardiac Ectopy. |
Demonstration of circadian rhythm in heart rate turbulence using novel application of correlator functions. |
Depression and heart rate variability in cardiac rehabilitation patients: exploring the roles of physical activity and fitness. |
Depression and obstructive sleep apnea in patients with coronary heart disease. |
Depression, heart rate variability, and acute myocardial infarction. |
Development of more erratic heart rate patterns is associated with mortality post-myocardial infarction. |
Diastolic dysfunction and autonomic abnormalities in patients with systolic heart failure. |
Dietary fish and n-3 fatty acid intake and cardiac electrocardiographic parameters in humans. |
Dietary fish and omega-3 fatty acid consumption and heart rate variability in US adults. |
Differing effects of age on heart rate variability in men and women. |
Ectopy on a Single 12-Lead ECG, Incident Cardiac Myopathy, and Death in the Community. |
Effect of 21 mg transdermal nicotine patches and smoking cessation on heart rate variability. |
Effect of cognitive behavioral therapy on heart rate variability during REM sleep in female rape victims with PTSD. |
Effect of exercise training on heart rate variability in healthy older adults. |
Effect of moricizine on heart rate variability in normal subjects. |
Effect of omega-3 fatty acids on heart rate variability in depressed patients with coronary heart disease. |
Effects of depression on QT interval variability after myocardial infarction. |
Effects of digoxin and enalapril on heart period variability and response to head-up tilt in normal subjects. |
Electrocardiographic Predictors of Incident Atrial Fibrillation. |
Empirically supported psychological treatments: the challenge of evaluating clinical innovations. |
Erratum: Genetic loci associated with heart rate variability and their effects on cardiac disease risk. |
Frailty and impaired cardiac autonomic control: new insights from principal components aggregation of traditional heart rate variability indices. |
Genetic loci associated with heart rate variability and their effects on cardiac disease risk. |
Genetic vulnerability and phenotypic expression of depression and risk for ischemic heart disease in the Vietnam era twin study of aging. |
Heart rate response to a timed walk and cardiovascular outcomes in older adults: the cardiovascular health study. |
Heart rate turbulence, depression, and survival after acute myocardial infarction. |
Heart rate turbulence: explorations of an emerging risk factor. |
Heart rate variability and its changes over 5 years in older adults. |
Heart rate variability and longevity. |
Heart rate variability and markers of inflammation and coagulation in depressed patients with coronary heart disease. |
Heart rate variability changes at 2400 m altitude predicts acute mountain sickness on further ascent at 3000-4300 m altitudes. |
Heart rate variability changes in association with ST segment depression during cesarean section under regional anesthesia. |
Heart rate variability in a case of pheochromocytoma. |
Heart rate variability in critical illness and critical care. |
Heart rate variability in patients with orthotopic heart transplantation: long-term follow-up. |
Heart rate variability in risk stratification of cardiac patients. |
Heart rate variability is independent of age, gender, and race in congestive heart failure with a recent acute exacerbation. |
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. |
Heart rate variability reflects severity of COPD in PiZ alpha1-antitrypsin deficiency. |
Heart rate variability, sleep and sleep disorders. |
Heart rate variability: a measure of cardiac autonomic tone. |
Heart rate variability: measurement and clinical utility. |
Heart-rate and blood-pressure responses to speech alone compared with cognitive challenges in the Stroop task. |
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. |
High-Fidelity Analysis of Perioperative QTc Prolongation. |
Impact of inflammatory biomarkers on relation of high density lipoprotein-cholesterol with incident coronary heart disease: cardiovascular Health Study. |
Imputing observed blood pressure for antihypertensive treatment: impact on population and genetic analyses. |
Including patients with diabetes mellitus or coronary artery bypass grafting decreases the association between heart rate variability and mortality after myocardial infarction. |
Increased high-frequency power may not reflect increased vagal tone. |
Increased non-gaussianity of heart rate variability predicts cardiac mortality after an acute myocardial infarction. |
Increased randomness of heart rate could explain increased heart rate variability preceding onset of atrial fibrillation. |
Increased ventricular premature contraction frequency during rem sleep in patients with coronary artery disease and obstructive sleep apnea. |
Inferring vagal tone from heart rate variability |
Inflammation and sudden cardiac death in a community-based population of older adults: the Cardiovascular Health Study. |
Insights from the study of heart rate variability. |
Interactions between short-term and long-term cardiovascular control mechanisms. |
Interactive associations of depression and sleep apnea with adverse clinical outcomes after acute myocardial infarction. |
K(ATP) channel gain-of-function leads to increased myocardial L-type Ca(2+) current and contractility in Cantu syndrome. |
Low heart rate variability and the effect of depression on post-myocardial infarction mortality. |
Measures of parasympathetic function and risk stratification in critical care. |
Mental Stress and Exercise Training Response: Stress-sleep Connection may be Involved. |
Mindfulness may both moderate and mediate the effect of physical fitness on cardiovascular responses to stress: a speculative hypothesis. |
Multi-scale heart rate dynamics detected by phase-rectified signal averaging predicts mortality after acute myocardial infarction. |
New York Heart Association functional class influences the impact of diabetes on cardiac autonomic function. |
Nighttime heart rate and survival in depressed patients post acute myocardial infarction. |
Nighttime heart rate predicts response to depression treatment in patients with coronary heart disease. |
Nocturnal patterns of heart rate and the risk of mortality after acute myocardial infarction. |
Non-linear heart rate variability and risk stratification in cardiovascular disease. |
Novel measures of heart rate variability predict cardiovascular mortality in older adults independent of traditional cardiovascular risk factors: the Cardiovascular Health Study (CHS). |
Objective measures of disordered sleep in fibromyalgia. |
Obstructive sleep apnea/hypopnea syndrome and poor response to sertraline in patients with coronary heart disease. |
Origin of heart rate variability and turbulence: an appraisal of autonomic modulation of cardiovascular function. |
Overnight Holter Electrocardiography: An Opportunity for Early Sleep Apnea Diagnosis and Treatment. |
Physical activity and heart rate variability in older adults: the Cardiovascular Health Study. |
Physiological complexity underlying heart rate dynamics and frailty status in community-dwelling older women. |
Potential role of different components of heart rate variability for risk-stratification in critical care. |
Prognostic value of heart rate turbulence for risk assessment in patients with unstable angina and non-ST elevation myocardial infarction. |
QT dynamicity: a prognostic factor for sudden cardiac death in chronic heart failure. |
Recurrent life-threatening hyperkalemia without typical electrocardiographic changes. |
Reduced heart rate multiscale entropy predicts death in critical illness: a study of physiologic complexity in 285 trauma patients. |
Reference values of heart rate variability. |
Relation between pet ownership and heart rate variability in patients with healed myocardial infarcts. |
Relationship of abnormal heart rate turbulence and elevated CRP to cardiac mortality in low, intermediate, and high-risk older adults. |
Response to letter regarding article, “physical activity and heart rate variability in older adults: the cardiovascular health study”. |
RR interval dynamics before atrial fibrillation in patients after coronary artery bypass graft surgery. |
RR variability in healthy, middle-aged persons compared with patients with chronic coronary heart disease or recent acute myocardial infarction. |
Severe depression is associated with markedly reduced heart rate variability in patients with stable coronary heart disease. |
Sex effects on heart rate variability in fibromyalgia and Gulf War illness. |
Sleep apnea: what does that really mean? A commentary on Baranchuk: “Sleep apnea, cardiac arrhythmias, and conduction disorders”. |
Sometimes higher heart rate variability is not better heart rate variability: results of graphical and nonlinear analyses. |
Stability of index of heart rate variability in patients with congestive heart failure. |
Stratification pattern of static and scale-invariant dynamic measures of heartbeat fluctuations across sleep stages in young and elderly. |
Structural relationships between measures based on heart beat intervals: potential for improved risk assessment. |
Sudden death, arrhythmic events and measurements of heart rate variability. |
The effect of participation in an exercise training program on cardiovascular reactivity in sedentary middle-aged males. |
The relationship of heart rate and heart rate variability to non-diabetic fasting glucose levels and the metabolic syndrome: the Cardiovascular Health Study. |
The St. Louis African American health-heart study: methodology for the study of cardiovascular disease and depression in young-old African Americans. |
Time domain measurements of heart rate variability. |
Traditional and nonlinear heart rate variability are each independently associated with mortality after myocardial infarction. |
Trans-fatty acid consumption and heart rate variability in 2 separate cohorts of older and younger adults. |
Untreated hypertension decreases heritability of cognition in late middle age. |
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). |
Vagal modulation and aging. |
Vagal tone: myths and realities. |
Ventricular Ectopy as a Predictor of Heart Failure and Death. |
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