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Heart Rate Variability and cardiovascular disease

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https://www.readbyqxmd.com/read/29343929/yoga-offers-cardiovascular-protection-in-early-postmenopausal-women
#1
Sinha M Praveena, Gandhi Asha, Mondal Sunita, Jain Anju, Biswas Ratna
Context: Postmenopause, an estrogen deficient state comes with increased incidence of cardiovascular diseases (CVDs). Yoga has been described as having a beneficial effect on heart rate variability (HRV), a marker for cardiac autonomic activity which can assess cardiovascular risk, in various populations. Aim: the aim of the study was to study the effect of 3-month long Yoga practice on HRV in early postmenopausal women. Settings and Design: A prospective longitudinal study of 67 women within 5 years of menopause between 45 and 60 years of age attending menopause clinic of Department of Gynaecology, Sucheta Kriplani Hospital fulfilling inclusion and exclusion criteria and consenting were enrolled for the study...
January 2018: International Journal of Yoga
https://www.readbyqxmd.com/read/29331535/estrogen-deprivation-aggravates-cardiometabolic-dysfunction-in-obese-insulin-resistant-rats-through-the-impairment-of-cardiac-mitochondrial-dynamics
#2
Wanitchaya Minta, Siripong Palee, Duangkamol Mantor, Wissuta Sutham, Thidarat Jaiwongkum, Sasiwan Kerdpoo, Wasana Pratchayasakul, Sirinart Kumfu, Siriporn C Chattipakorn, Nipon Chattipakorn
The incidence of cardiovascular disease and metabolic syndrome increases after the onset of menopause, suggesting estrogen has a vital role in their prevention. Mitochondrial dynamics are known to play an important role in the maintenance of cardiac physiological function. However, the effects of estrogen deprivation on cardiometabolic status and cardiac mitochondrial dynamics under conditions of obese-insulin resistance have never been investigated. We hypothesized that estrogen deprivation aggravates cardiac dysfunction through increased cardiac mitochondrial fission in obese-insulin resistant rats...
January 10, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29324640/heart-rate-variability-frequency-domain-alterations-among-healthy-nurses-exposed-to-prolonged-work-stress
#3
Rossana Borchini, Giovanni Veronesi, Matteo Bonzini, Francesco Gianfagna, Oriana Dashi, Marco Mario Ferrario
The deregulation of the autonomic nervous system assessed through the heart rate variability (HRV) analysis is a promising pathway linking work stress and cardiovascular diseases. We aim to investigate the associations between HRV High Frequency (HF) and Low Frequency (LF) powers and work stress in a sample of 36 healthy nurses. Perceived work stress was assessed twice one year apart, using the Job Content and Effort Reward Imbalance questionnaires. This allows to classify nurses in three exposure groups: "prolonged high stress" (PHS), "recent high stress" (RHS) and "stable low stress" (SLS)...
January 11, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29315657/dysautonomy-in-different-death-risk-groups-rassi-score-in-patients-with-chagas-heart-disease
#4
Catherine Masiel Merejo Peña, Michel Silva Reis, Basílio de Bragança Pereira, Emília Matos do Nascimento, Roberto Coury Pedrosa
BACKGROUND: It has been difficult to prove that the "catecholamine-induced cardiomyopathy" contributes to the mechanism of sudden cardiac death in Chagas heart disease. Also, it is almost impossible to rule out the possibility that is not involved in the process. More importantly, the vagal-cholinergic pathway in the ventricle plays a direct role in the prevention of the initiation of complex ventricular arrhythmias, including non-sustained ventricular tachycardia, ventricular fibrillation responsible for sudden death...
January 5, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29313987/variable-role-of-carotid-bodies-in-cardiovascular-responses-to-exercise-hypoxia-and-hypercapnia-in-spontaneously-hypertensive-rats
#5
Wioletta Pijacka, Pedro L Katayama, Helio C Salgado, Gisele S Lincevicius, Ruy R Campos, Fiona D McBryde, Julian F R Paton
The carotid body has recently emerged as a promising therapeutic target for treating cardiovascular disease, however the potential impact of carotid bodies removal on the dynamic cardiovascular responses to acute stressors such as exercise, hypoxia and hypercapnia in hypertension is an important safety consideration that has not been studied. We first validated a novel surgical approach to selectively resect the carotid bodies bilaterally (CBR) sparing the carotid sinus baroreflex. Second, we evaluated the impact of CBR on the cardiovascular responses to exercise, hypoxia and hypercapnia in the conscious, chronically instrumented spontaneously hypertensive (SH) rats...
January 5, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29302618/time-restricted-feeding-improves-circadian-dysfunction-as-well-as-motor-symptoms-in-the-q175-mouse-model-of-huntington-s-disease
#6
Huei-Bin Wang, Dawn H Loh, Daniel S Whittaker, Tamara Cutler, David Howland, Christopher S Colwell
Huntington's disease (HD) patients suffer from a progressive neurodegeneration that results in cognitive, psychiatric, cardiovascular, and motor dysfunction. Disturbances in sleep/wake cycles are common among HD patients with reports of delayed sleep onset, frequent bedtime awakenings, and fatigue during the day. The heterozygous Q175 mouse model of HD has been shown to phenocopy many HD core symptoms including circadian dysfunctions. Because circadian dysfunction manifests early in the disease in both patients and mouse models, we sought to determine if early intervention that improve circadian rhythmicity can benefit HD and delay disease progression...
January 2018: ENeuro
https://www.readbyqxmd.com/read/29298214/heart-rate-variability-and-its-relation-to-chronic-kidney-disease-results-from-the-prevend-study
#7
Christian H L Thio, Arie M van Roon, Joop D Lefrandt, Ron T Gansevoort, Harold Snieder
OBJECTIVE: In the general population, reduced heart rate variability (HRV) has been associated with cardiovascular disease. However, its relation to chronic kidney disease (CKD) is debated. We therefore investigated the relation between low HRV and renal outcomes. METHODS: In the population-based PREVEND Study, renal outcomes (CKD, eGFR, urinary albumin) were measured at baseline and three consecutive examinations. HRV measures (among which SDNN, standard deviation of normal-to-normal RR-intervals) were calculated from time-series of beat-to-beat pulse-wave recordings at baseline...
January 2, 2018: Psychosomatic Medicine
https://www.readbyqxmd.com/read/29297147/one-year-cardiovascular-prognosis-of-the-randomized-controlled-short-term-heart-rate-variability-biofeedback-among-patients-with-coronary-artery-disease
#8
Li-Ching Yu, I-Mei Lin, Sheng-Yu Fan, Chin-Lung Chien, Tsung-Hsien Lin
PURPOSE: Heart rate variability biofeedback (HRV-BF) is an effective psychophysiological intervention, with short-term effects of increased autonomic nervous system homeostasis, strengthened baroreflex sensitivity, and decreased hostility in patients with coronary artery disease (CAD). The study examined the 1-year HRV-BF effect on cardiovascular prognosis of these patients. METHODS: Of 222 patients with CAD referred by cardiologists, 210 were screened and randomly assigned to the HRV-BF and control groups...
January 2, 2018: International Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/29284731/association-between-heart-rate-and-subclinical-cerebrovascular-disease-in-the-elderly
#9
Koki Nakanishi, Zhezhen Jin, Shunichi Homma, Mitchell S V Elkind, Tatjana Rundek, Seitetz C Lee, Aylin Tugcu, Mitsuhiro Yoshita, Charles DeCarli, Clinton B Wright, Ralph L Sacco, Marco R Di Tullio
BACKGROUND AND PURPOSE: Although increased heart rate (HR) is a predictor of cardiovascular events and mortality, its possible association with subclinical cerebrovascular disease, which is prevalent in the elderly, has not been evaluated. This study aimed to investigate the association of daytime, nighttime, 24-hour HR, and HR variability with subclinical cerebrovascular disease in an elderly cohort without history of stroke. METHODS: The study cohort consisted of 680 participants (mean age, 73±7 years; 42% men) in sinus rhythm who underwent 24-hour ambulatory blood pressure and HR monitoring, 2-dimensional echocardiography, and brain magnetic resonance imaging as part of the CABL study (Cardiac Abnormalities and Brain Lesion)...
December 28, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29278623/depression-and-heart-diseases-leading-health-problems
#10
Matea Raič
Depression is the most common psychiatric disorder in the world population and the most frequent mental disorder in a primary health care. Unrecognized and untreated depression is associated with a poor outcome of treated chronic diseases which co-exist with depression. Depression and cardiovascular diseases are bidirectional related conditions, risks are for each other, and they often co-exist. Depression is a common disorder in cardiovascular patients with a prevalence of 20% to 45%, which is much more frequent than in the general population...
December 2017: Psychiatria Danubina
https://www.readbyqxmd.com/read/29258476/neighborhood-walk-score-and-selected-cardiometabolic-factors-in-the-french-record-cohort-study
#11
Julie Méline, Basile Chaix, Bruno Pannier, Gbenga Ogedegbe, Leonardo Trasande, Jessica Athens, Dustin T Duncan
BACKGROUND: Walkable neighborhoods are purported to impact a range of cardiometabolic outcomes through increased walking, but there is limited research that examines multiple cardiometabolic outcomes. Additionally, few Walk Score (a novel measure of neighborhood walkability) studies have been conducted in a European context. We evaluated associations between neighborhood Walk Score and selected cardiometabolic outcomes, including obesity, hypertension and heart rate, among adults in the Paris metropolitan area...
December 19, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29243272/chronic-kidney-disease-and-coronary-artery-calcification-in-the-brazilian-longitudinal-study-of-adult-health-elsa-brasil
#12
Cheng Suh-Chiou, Rosa M Moysés, Marcio S Bittencourt, Isabela M Bensenor, Paulo A Lotufo
BACKGROUND: Chronic kidney disease is a worldwide public health concern due to the increased prevalence the high fatalities related to heart disease in this population. Among novel cardiovascular risk markers, the coronary artery calcification score (CAC) emerged as an independent predictor of cardiovascular events. HYPOTHESIS: We aimed to test if glomerular filtration rate or albuminuria are independently associated with coronary calcification. METHODS: The Brazilian Longitudinal Study of Adult Health is a cohort of men and women aged 35 to 74 years old addressing cardiovascular diseases...
December 15, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/29229303/pretransplant-coronary-artery-disease-is-a-predictor-for-myocardial-infarction-and-cardiac-death-after-liver-transplantation
#13
F Darstein, M Hoppe-Lotichius, J Vollmar, V Weyer-Elberich, A Zimmermann, J Mittler, G Otto, H Lang, P R Galle, T Zimmermann
BACKGROUND: Cardiovascular disease is a serious problem of liver transplant (LT) recipients because of increased cardiovascular risk due to immunosuppressive therapy, higher age, intraoperative risk and comorbidities (such as diabetes and nicotine abuse). Reported frequency of cardiovascular events after LT shows a high variability between different LT cohorts. Our aim was to analyze a cohort of LT recipients from a single center in Germany to evaluate frequency of the cardiovascular endpoints (CVE) myocardial infarction and/or cardiac death after LT and to investigate correlations of CVE post LT with pretransplant patient characteristics...
December 8, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29227869/reliability-of-oscillometric-central-blood-pressure-responses-to-lower-limb-resistance-exercise
#14
Simon Fryer, Keeron Stone, Tabitha Dickson, James Faulkner, Danielle Lambrick, Pablo Corres, Lauren Jerred, Lee Stoner
BACKGROUND AND AIMS: Although it is well known that resistance training (RT) is beneficial for patients suffering from a variety of cardiovascular diseases, it remains underutilized as a rehabilitation tool as there is no reliable way to monitor the additional stress placed on the central organs. The current study aimed to determine between-day reliability of central haemodynamic indices using oscillometric pulse wave analysis (PWA) during progressive sub-maximal RT. METHODS: Nineteen healthy young males were tested on 3 different mornings in a fasted state...
December 5, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29226819/adherence-to-mediterranean-diet-and-all-cause-mortality-after-an-episode-of%C3%A2-acute-heart-failure-results-of-the%C3%A2-medit-ahf%C3%A2-study
#15
Òscar Miró, Ramon Estruch, Francisco J Martín-Sánchez, Víctor Gil, Javier Jacob, Pablo Herrero-Puente, Sergio Herrera Mateo, Alfons Aguirre, Juan A Andueza, Pere Llorens
OBJECTIVES: The authors sought to evaluate clinical outcomes of patients after an episode of acute heart failure (AHF) according to their adherence to the Mediterranean diet (MedDiet). BACKGROUND: It has been proved that MedDiet is a useful tool in primary prevention of cardiovascular diseases. However, it is unknown whether adherence to MedDiet is associated with better outcomes in patients who have already experienced an episode of AHF. METHODS: We designed a prospective study that included consecutive patients diagnosed with AHF in 7 Spanish emergency departments (EDs)...
January 2018: JACC. Heart Failure
https://www.readbyqxmd.com/read/29223429/predicting-risk-of-cardiac-events-among-st-segment-elevation-myocardial-infarction-patients-with-conservatively-managed-non-infarct-related-artery-coronary-artery-disease-an-analysis-of-the-duke-databank-for-cardiovascular-disease
#16
RANDOMIZED CONTROLLED TRIAL
Sameer A Hirji, Susanna R Stevens, Linda K Shaw, Erin C Campbell, Christopher B Granger, Manesh R Patel, Michael H Sketch, Tracy Y Wang, E Magnus Ohman, Eric D Peterson, J Matthew Brennan
BACKGROUND: Recent randomized evidence has demonstrated benefit with complete revascularization during the index hospitalization for multivessel coronary artery disease ST-segment elevation myocardial infarction (STEMI) patients; however, this benefit likely depends on the risk of future major adverse cardiovascular events (MACE). METHODS: Using data from Duke University Medical Center (2003-2012), we identified those at high risk for 1-year MACE among 664 STEMI patients with conservatively managed non-infarct-related artery (non-IRA) lesions...
December 2017: American Heart Journal
https://www.readbyqxmd.com/read/29217881/reduced-baroreflex-sensitivity-decreased-heart-rate-variability-with-increased-arterial-stiffness-in-predialysis
#17
C Lal, M Kaur, A K Jaryal, K K Deepak, D Bhowmik, S K Agarwal
High cardiovascular morbidity and mortality is observed in predialytic chronic kidney disease (CKD) patients. The underlying mechanism of cardiovascular dysfunction often remains unclear. The present study was designed to perform multiparametric assessment of baroreflex sensitivity (BRS), arterial stiffness indices, and cardiovascular variabilities (heart rate variability [HRV] and blood pressure variability [BPV]) together in predialytic CKD patients; compare it with normal healthy controls; and determine their relationships in predialytic nondiabetic CKD patients...
November 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/29215023/a-pilot-characterization-of-the-human-chronobiome
#18
Carsten Skarke, Nicholas F Lahens, Seth D Rhoades, Amy Campbell, Kyle Bittinger, Aubrey Bailey, Christian Hoffmann, Randal S Olson, Lihong Chen, Guangrui Yang, Thomas S Price, Jason H Moore, Frederic D Bushman, Casey S Greene, Gregory R Grant, Aalim M Weljie, Garret A FitzGerald
Physiological function, disease expression and drug effects vary by time-of-day. Clock disruption in mice results in cardio-metabolic, immunological and neurological dysfunction; circadian misalignment using forced desynchrony increases cardiovascular risk factors in humans. Here we integrated data from remote sensors, physiological and multi-omics analyses to assess the feasibility of detecting time dependent signals - the chronobiome - despite the "noise" attributable to the behavioral differences of free-living human volunteers...
December 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29214181/cardiac-autonomic-neuropathy-why-should-cardiologists-care-about-that
#19
REVIEW
Andrzej Bissinger
Background: Cardiac autonomic neuropathy (CAN) is a frequent but underdiagnosed complication of diabetes mellitus. It has a strong influence on various cardiac disorders including myocardial ischemia and infarction, hypertension, orthostatic hypotonia, heart failure, and arrhythmias. CAN can lead to severe morbidity and mortality and increase the risk of sudden cardiac death. Methods: This review article summarizes the latest evidence regarding the epidemiology, pathogenesis, influence on the cardiovascular system, and diagnostic methods for CAN...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29209423/the-physiological-effects-of-slow-breathing-in-the-healthy-human
#20
Marc A Russo, Danielle M Santarelli, Dean O'Rourke
Slow breathing practices have been adopted in the modern world across the globe due to their claimed health benefits. This has piqued the interest of researchers and clinicians who have initiated investigations into the physiological (and psychological) effects of slow breathing techniques and attempted to uncover the underlying mechanisms. The aim of this article is to provide a comprehensive overview of normal respiratory physiology and the documented physiological effects of slow breathing techniques according to research in healthy humans...
December 2017: Breathe
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