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heart rate variability and well-being

Athanasios Tsiouris, Lynn Wilson, Rajesh B Sekar, Abeel A Mangi, James J Yun
BACKGROUND: A lack of donor hearts remains a major limitation of heart transplantation. Hearts from Centers for Disease Control (CDC) high-risk donors can be utilized with specific recipient consent. However, outcomes of heart transplantation with CDC high-risk donors are not well known. We sought to define outcomes, including posttransplant hepatitis and human immunodeficiency virus (HIV) status, in recipients of CDC high-risk donor hearts at our institution. METHODS: All heart transplant recipients from August 2010 to December 2014 (n = 74) were reviewed...
October 23, 2016: Journal of Cardiac Surgery
Massimiliano de Zambotti, John Trinder, Ian M Colrain, Fiona C Baker
Insomnia is considered a hyperarousal disorder, in which several psychophysiological domains including the autonomic nervous system (ANS) are over-activated, potentially contributing to increased risk for cardiovascular (CV) disease. Here, we aimed to determine whether insomnia that develops in the context of the transition to menopause (menopausal transition insomnia, MTI) is similarly characterized by autonomic arousal. We also took into account modulation of the ANS by the hormonal changes of the menstrual cycle, a factor that has not previously been considered in studies on insomnia...
October 14, 2016: Psychoneuroendocrinology
Jacinthe Leclerc, Marie Arsenault, Jean-Pierre Després, Patrice Brassard, Valérie Gaudreault, Jean Bergeron, Natalie Alméras, Angelo Tremblay, Audrey Auclair, Marie-Kristelle Ross, Stéphanie Denault-Bissonnette, Paul Poirier
BACKGROUND: Abdominal obesity and presence of the metabolic syndrome (MetS) are associated with cardiac abnormalities. Among those, left ventricular diastolic dysfunction (LVDD) is the most frequently encountered in clinical practice. Few studies evaluated the reversibility of LVDD by an approach promoting lifestyle modifications in abdominally obese subjects with MetS. METHODS: We assessed the impact of a 1-year lifestyle modification program combining nutritional and physical activity counseling on LVDD and metabolic profile of abdominally obese men with MetS...
October 18, 2016: Metabolic Syndrome and related Disorders
Midori Awazu
ABP is more reliable and reproducible than casual BP, enables computation of the mean, daytime, night-time ABP, and 24-h pulse pressure, detects white coat effect or reversed white coat effect, and provides information regarding diurnal BP pattern as well as BP variability. ABP correlates better with target-organ damage than casual BP. ABPM is now widely used also in children. Increasing age and higher mean BP are factors that improve the success rate of ABPM. There is a guideline from American Heart Association to standardize the use of ABPM in children, including the detailed recommendations for the use of ABPM and for the interpretation of the data...
September 2016: Journal of Hypertension
Thomas Schwartz, Louise Pyndt Diederichsen, Ingrid E Lundberg, Ivar Sjaastad, Helga Sanner
Idiopathic inflammatory myopathies (IIM) include the main subgroups polymyositis (PM), dermatomyositis (DM), inclusion body myositis (IBM) and juvenile DM (JDM). The mentioned subgroups are characterised by inflammation of skeletal muscles leading to muscle weakness and other organs can also be affected as well. Even though clinically significant heart involvement is uncommon, heart disease is one of the major causes of death in IIM. Recent studies show an increased prevalence of traditional cardiovascular risk factors in JDM and DM/PM, which need attention...
2016: RMD Open
Nele A J De Witte, Stefan Sütterlin, Caroline Braet, Sven C Mueller
Emotion regulation and associated autonomic activation develop throughout childhood and adolescence under the influence of the family environment. Specifically, physiological indicators of autonomic nervous system activity such as interoceptive sensitivity and vagally mediated heart rate variability (HRV) can inform on emotion regulation. Although the effect of parental emotion socialization on emotion regulation appears to be influenced by autonomic processes, research on physiological regulation and the influence of parental factors remains scarce...
2016: PloS One
Stephen Crowcroft, Erin McCleave, Katie Slattery, Aaron J Coutts
PURPOSE: To assess measurement sensitivity and diagnostic characteristics of athlete monitoring tools to identify performance change. METHODS: Fourteen nationally competitive swimmers (11 males, 3 females, age: 21.2 ± 3.2 y) recorded daily monitoring over 15 months. The "Self-report" group (n=7) reported general health, energy levels, motivation, stress, recovery, soreness and wellness. The "Combined" group (n=7) recorded sleep quality, perceived fatigue, total quality recovery (TQR) and heart rate variability measures...
October 13, 2016: International Journal of Sports Physiology and Performance
Yu-Ju Chen, Chin-Ling Lin, Chi-Rong Li, Shih-Ming Huang, James Yi-Hsin Chan, Wen-Hui Fang, Wei-Liang Chen
BACKGROUND: Metabolic syndrome (MetS) has been reported to cause considerable psychoneuroimmunology (PNI) disturbances such as, psychological distress, autonomic nervous imbalance, and impaired immune function. Associations among these psychoneuroimmunology (PNI) factors and their integrated effects with MetS and risk components of MetS necessitate further exploration. OBJECTIVE: This study investigated associations among psychoneuroimmunological factors, their integrated effects with MetS and risk components of MetS...
October 7, 2016: Psychoneuroendocrinology
Douglas MacInnes, Catherine Kinane, Janet Parrott, Jacqueline Mansfield, Tom Craig, Sandra Eldridge, Ian Marsh, Claire Chan, Natalia Hounsome, George Harrison, Stefan Priebe
BACKGROUND: There is a lack of research in forensic settings examining therapeutic relationships. A structured communication approach, placing patients' perspectives at the heart of discussions about their care, was used to improve patients' quality of life in secure settings. The objectives were to: • Establish the feasibility of the trial design • Determine the variability of the outcomes of interest • Estimate the costs of the intervention • If necessary, refine the intervention METHODS: A pilot cluster randomised controlled trial was conducted...
September 29, 2016: BMC Psychiatry
Safa Yaghini Bonabi, Fatima El-Hamad, Alexander Müller, Michael Dommasch, Alexander Steger, Georg Schmidt, Mathias Baumert
Beat-to-beat variability of the QT interval (QTV) measured on surface ECG has emerged as a potential marker for ventricular repolarization instability and has been used along with heart rate variability (HRV) to predict arrhythmic risk. Since measurement modalities of QTV have not been standardized, the objective of this study was to investigate the effect of ECG recording duration on QTV as well as HRV. Using a database of 30 min ECG recorded from 500 patients with acute myocardial infraction during rest, we extracted RR and QT interval time series and estimated different HRV and QTV metrics over windows of varying length...
September 28, 2016: Physiological Measurement
Mojtaba Jafari Tadi, Eero Lehtonen, Tero Hurnanen, Juho Koskinen, Jonas Eriksson, Mikko Pänkäälä, Mika Teräs, Tero Koivisto
Heart rate monitoring helps in assessing the functionality and condition of the cardiovascular system. We present a new real-time applicable approach for estimating beat-to-beat time intervals and heart rate in seismocardiograms acquired from a tri-axial microelectromechanical accelerometer. Seismocardiography (SCG) is a non-invasive method for heart monitoring which measures the mechanical activity of the heart. Measuring true beat-to-beat time intervals from SCG could be used for monitoring of the heart rhythm, for heart rate variability analysis and for many other clinical applications...
September 28, 2016: Physiological Measurement
Jérémy Raffin, Jean-Claude Barthelemy, Philippe Terrat, Marie-Christine Diana, Emilie Achour, Paul Calmels, Mathieu Oriol, Thierry Busso, Lallia Hammadi, Claude Montuy-Coquard, Rémi Bouvier, Rémi Poillerat, Frédéric Roche, David Hupin
OBJECTIVE: It is well established that physical activity reduces the physiological effects of ageing. Among them, is the decrease of the autonomic nervous system (ANS) activity, which is associated with the increase of cardiovascular events and morbidities. It has been shown that high intensity cycle training can enhance the ANS activity by 30% in people with the age of 70. However, such trainings were done by old athletes, used to train at intensities that could not be tolerated by sedentary old people, such as nursing home residents...
September 2016: Annals of Physical and Rehabilitation Medicine
Alejandro de la Sierra, Julia Pareja, Pedro Armario, Ángela Barrera, Sergi Yun, Susana Vázquez, Laia Sans, Julio Pascual, Anna Oliveras
BACKGROUND: Sympathetic renal denervation (SRD) has been proposed as a therapeutic alternative for patients with resistant hypertension not controlled on pharmacological therapy. Two studies have suggested an effect of SRD in reducing short-term blood pressure variability (BPV). However, this has not been addressed in a randomized comparative trial. We aimed to compare the effects of spironolactone and SRD on circadian BP and BPV. METHODS: This is a post-hoc analysis of a randomized trial in 24 true resistant hypertensive patients (15 men, 9 women; mean age 64 years) comparing 50mg of spironolactone (n = 13) vs...
September 20, 2016: American Journal of Hypertension
Victor Hugo DA Silva Braga, Vinicius Araújo Armelin, Mariana Teodoro Teixeira, Augusto Shinya Abe, Francisco Tadeu Rantin, Luiz Henrique Florindo
The metabolic increment that occurs after feeding demands cardiovascular adjustments to be maintained, as increased heart rate (fH ) and cardiac output. In mammals, postprandial tachycardia seems to be triggered by an increase in adrenergic activity and by nonadrenergic noncholinergic (NANC) factors, while in ectothermic vertebrates, this adjustment seems to be linked to a withdrawal of vagal drive as well as to NANC factors. Because the factors behind postprandial tachycardia have not yet been investigated in crocodilians, the present study sought to evaluate the postprandial tachycardia mediators in the broad-nosed caiman...
September 21, 2016: Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology
Midori Awazu
ABP is more reliable and reproducible than casual BP, enables computation of the mean, daytime, night-time ABP, and 24-h pulse pressure, detects white coat effect or reversed white coat effect, and provides information regarding diurnal BP pattern as well as BP variability. ABP correlates better with target-organ damage than casual BP. ABPM is now widely used also in children. Increasing age and higher mean BP are factors that improve the success rate of ABPM. There is a guideline from American Heart Association to standardize the use of ABPM in children, including the detailed recommendations for the use of ABPM and for the interpretation of the data...
September 2016: Journal of Hypertension
Julie Lillebostad Svendsen, Berge Osnes, Per-Einar Binder, Ingrid Dundas, Endre Visted, Helge Nordby, Elisabeth Schanche, Lin Sørensen
Converging evidence shows a positive effect of self-compassion on self-reported well-being and mental health. However, few studies have examined the relation between self-compassion and psychophysiological measures. In the present study, we therefore examined the relation between trait self-compassion and vagally mediated heart rate variability (vmHRV) in 53 students (39 female, mean age = 23.63). Trait self-compassion was assessed using the Self-Compassion Scale, and resting vmHRV was measured during a 5-min ECG baseline period...
2016: Mindfulness
Yukari Kobayashi, Kegan J Moneghetti, Kalyani Boralkar, Myriam Amsallem, Mirela Tuzovic, David Liang, Phillip C Yang, Sanjiv Narayan, Tatiana Kuznetsova, Joseph C Wu, Ingela Schnittger, Francois Haddad
AIMS: Left ventricular (LV) strain provides incremental values to LV ejection fraction (LVEF) in predicting outcome. We sought to investigate if similar relationship is observed between left atrial (LA) emptying fraction and LA strain. METHODS AND RESULTS: In this study, we selected 50 healthy subjects, 50 patients with dilated, 50 hypertrophic, and 50 infiltrative (light-chain (AL) amyloidosis) cardiomyopathy (CMP). Echocardiographic measures included LVEF and LA emptying fraction as well as LV and LA longitudinal strain (LVLS and LALS)...
September 16, 2016: European Heart Journal Cardiovascular Imaging
Karen Hansen Kallesøe, Andreas Schröder, Rikard K Wicksell, Per Fink, Eva Ørnbøl, Charlotte Ulrikka Rask
INTRODUCTION: Functional somatic syndromes (FSS) are common in adolescents, characterised by severe disability and reduced quality of life. Behavioural treatments such as acceptance and commitment therapy (ACT) has shown promising results in children and adolescents with FSS, but has focused on specific syndromes such as functional pain. The current study will compare the efficacy of group-based ACT with that of enhanced usual care (EUC) in adolescents with a range of FSS operationalised by the unifying construct of multiorgan bodily distress syndrome (BDS)...
September 15, 2016: BMJ Open
Erik Konrad Grasser, Jennifer Lynn Miles-Chan, Nathalie Charrière, Cathríona R Loonam, Abdul G Dulloo, Jean-Pierre Montani
Globally, the popularity of energy drinks is steadily increasing. Scientific interest in their effects on cardiovascular and cerebrovascular systems in humans is also expanding and with it comes a growing number of case reports of adverse events associated with energy drinks. The vast majority of studies carried out in the general population report effects on blood pressure and heart rate. However, inconsistencies in the current literature render it difficult to draw firm conclusions with regard to the effects of energy drinks on cardiovascular and cerebrovascular variables...
September 2016: Advances in Nutrition
Toshihisa Ishida, Shin-Ichiro Miura, Kanta Fujimi, Takashi Ueda, Yoko Ueda, Takuro Matsuda, Maaya Sakamoto, Tadaaki Arimura, Yuhei Shiga, Ken Kitajima, Keijiro Saku
Visit-to-visit variability (VVV) in blood pressure (BP) has been shown to be a predictor of cardiovascular events. It is unknown whether CR can improve VVV in BP as well as reducing BP. We enrolled 84 patients who had cardiovascular disease (CVD) and participated in a 3-month CR program. We measured systolic and diastolic BP (SBP and DBP), pulse pressure (PP), and heart rate (HR) before exercise training at each visit and determined VVV in BP or HR expressed as the standard deviation of the average BP or HR...
September 28, 2016: International Heart Journal
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