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heart rate variability and well-being

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https://www.readbyqxmd.com/read/29231318/-differences-of-acupuncture-and-moxibustion-on-heart-rate-variability-in-qi-deficiency-syndrome-a-randomized-controlled-trial
#1
Qing Shu, Danhong Sun, Hua Wang, Fengxia Liang, Litscher Gerhard, Litscher Daniela, Gaischek Ingrid, Li Chen, Wenjuan He, Yayuan Wang
OBJECTIVE: To observe the improvement of acupuncture and moxibustion on symptoms of qi-deficiency syndrome as well as their differences on the parameters of heart rate variability (HRV). METHODS: Thirty patients with qi-deficiency syndrome and 15 healthy volunteers were recruited. Thirty patients with qi-deficiency syndrome were randomly assigned into an acupuncture group and a moxibustion group, 15 cases in each one. Fifteen healthy volunteers were allocated as a healthy control group...
January 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29227869/reliability-of-oscillometric-central-blood-pressure-responses-to-lower-limb-resistance-exercise
#2
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/29226689/simultaneous-multi-slice-resting-state-fmri-at-3-tesla-slice-acceleration-related-biases-in-physiological-effects
#3
Ali M Golestani, Zahra Faraji-Dana, M Aras Kayvanrad, Kawin Setsompop, Simon Graham, J Jean Chen
Simultaneous multi-slice echo-planar imaging (EPI) can enhance the spatiotemporal resolution of resting-state functional MRI (rs-fMRI) by encoding and simultaneously imaging "groups" of slices. However, phenomena including respiration, cardiac pulsatility, respiration volume per time (RVT) and cardiac-rate variation (CRV), referred to as "physiological processes", impact SMS-EPI rs-fMRI in a manner that has yet to be well characterized. In particular, physiological noise may incur aliasing and introduce spurious signals from one slice into another within the "slice-group" in rs-fMRI data, resulting in a deleterious effect on resting-state functional connectivity MRI (rs-fcMRI) maps...
December 10, 2017: Brain Connectivity
https://www.readbyqxmd.com/read/29223653/effects-of-cardiac-rehabilitation-on-heart-rate-recovery-of-patients-undergoing-a-cardiac-rehabilitation-programme-after-acute-coronary-syndrome
#4
Tiffany Astolfi, Fabio Borrani, Milos Savcic, Vincent Gremeaux, Grégoire P Millet
BACKGROUND: An efficient cardiac rehabilitation programme (CRP) can improve the functional ability of patients after acute coronary syndrome (ACS). OBJECTIVE: To examine the effect of a CRP on parasympathetic reactivation and heart rate recovery (HRR) measured after a 6-min walk test (6MWT), and correlation with 6MWT distance and well-being after ACS. METHODS: Eleven normoweight patients after ACS (BMI < 25kg/m2; 10 males; mean [SD] age 61 [9] years) underwent an 8-week CRP...
December 6, 2017: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/29222320/anticoagulation-with-vads-and-ecmo-walking-the-tightrope
#5
REVIEW
Leslie Raffini
The evolution of devices for mechanical circulatory support (MCS), including ventricular assist devices (VADs) for patients with heart failure and extracorporeal membrane oxygenation (ECMO) for patients with acute cardiac or respiratory failure, has improved survival for subsets of critically ill children and adults. The devices are intricate and complex, allowing blood to bypass the heart or lungs (or both). As blood flows through these artificial devices, normal hemostasis is disrupted, coagulation is promoted, and in the absence of anticoagulation, a thrombus may form in the device, resulting in device failure or embolic stroke...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29215144/physiological-coherence-in-healthy-volunteers-during-laboratory-induced-stress-and-controlled-breathing
#6
Elisa Mejía-Mejía, Robinson Torres, Diana Restrepo
Physiological coherence has been related with a general sense of well-being and improvements in health and physical, social, and cognitive performance. The aim of this study was to evaluate the relationship between acute stress, controlled breathing, and physiological coherence, and the degree of body systems synchronization during a coherence-generation exercise. Thirty-four university employees were evaluated during a 20-min test consisting of four stages of 5-min duration each, during which basal measurements were obtained (Stage 1), acute stress was induced using validated mental stressors (Stroop test and mental arithmetic task, during Stage 2 and 3, respectively), and coherence states were generated using a controlled breathing technique (Stage 4)...
December 7, 2017: Psychophysiology
https://www.readbyqxmd.com/read/29214150/the-physiocam-a-novel-non-contact-sensor-to-measure-heart-rate-variability-in-clinical-and-field-applications
#7
Maria I Davila, Gregory F Lewis, Stephen W Porges
Heart rate variability (HRV) is a reliable indicator of health status and a sensitive index of autonomic stress reactivity. Stress negatively affects physical and psychological wellness by decreasing cardiovascular health and reducing quality of life. Wearable sensors have made it possible to track HRV during daily activity, and recent advances in mobile technology have reduced the cost and difficulty of applying this powerful technique. Although advances have made sensors smaller and lighter, some burden on the subject remains...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/29201590/investigating-ph-based-evaluation-of-fetal-heart-rate-fhr-recordings
#8
George Georgoulas, Petros Karvelis, Jiří Spilka, Václav Chudáček, Chrysostomos D Stylios, Lenka Lhotská
Cardiotocography (CTG) is a standard tool for the assessment of fetal well-being during pregnancy and delivery. However, its interpretation is associated with high inter- and intra-observer variability. Since its introduction there have been numerous attempts to develop computerized systems assisting the evaluation of the CTG recording. Nevertheless these systems are still hardly used in a delivery ward. Two main approaches to computerized evaluation are encountered in the literature; the first one emulates existing guidelines, while the second one is more of a data-driven approach using signal processing and computational methods...
2017: Health and Technology
https://www.readbyqxmd.com/read/29196540/propensity-score-matched-analysis-of-partial-atrioventricular-septal-defect-repair-in-infancy
#9
Edward Buratto, Michael Daley, Xin Tao Ye, Dorothy J Radford, Nelson Alphonso, Christian P Brizard, Yves d'Udekem, Igor E Konstantinov
OBJECTIVE: Partial atrioventricular septal defect (pAVSD) is usually repaired between 2 and 4 years of age with excellent results. Repair during infancy has been associated with poorer outcomes. However, most infants in reported series had heart failure or significant left atrioventricular valve (LAVV) regurgitation. The impact of surgery during infancy on outcomes remains unclear. METHODS: All children at three institutions who underwent repair of pAVSD from 1975 to 2015 were included...
December 1, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29193654/technology-experience-of-solid-organ-transplant-patients-and-their-overall-willingness-to-use-interactive-health-technology
#10
Jasper M M Vanhoof, Bert Vandenberghe, David Geerts, Pieter Philippaerts, Patrick De Mazière, Annette DeVito Dabbs, Sabina De Geest, Fabienne Dobbels
BACKGROUND: The use of interactive health technology (IHT) is a promising pathway to tackle self-management problems experienced by many chronically ill patients, including solid organ transplant (Tx) patients. Yet, to ensure that the IHT is accepted and used, a human-centered design process is needed, actively involving end users in all steps of the development process. A first critical, predevelopment step involves understanding end users' characteristics. This study therefore aims to (a) select an IHT platform to deliver a self-management support intervention most closely related to Tx patients' current use of information and communication technologies (ICTs), (b) understand Tx patients' overall willingness to use IHT for self-management support, and investigate associations with relevant technology acceptance variables, and (c) explore Tx patients' views on potential IHT features...
November 28, 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/29193629/relationship-between-the-severity-of-cerebral-white-matter-hyperintensities-and-sympathetic-nervous-activity-in-older-adults
#11
Toshimasa Obara, Kumiko Nagai, Shigeki Shibata, Ai Hirasawa, Hitomi Koshiba, Hiroshi Hasegawa, Takae Ebihara, Koichi Kozaki
AIM: White matter hyperintensities (WMH), visualized on brain magnetic resonance imaging, represent an abnormality related to the development of geriatric syndromes. Recently, it has been found that low sympathetic nervous activity might be associated with physical and cognitive dysfunction in older adults. Therefore, we investigated the relationship between the severity of cerebral WMH and sympathetic nervous activity, measured by the heart rate variability. METHODS: We carried out a cross-sectional study of 39 older patients...
November 28, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/29193563/sacubitril-valsartan-reduces-serum-uric-acid-concentration-an-independent-predictor-of-adverse-outcomes-in-paradigm-hf
#12
Ulrik M Mogensen, Lars Køber, Pardeep S Jhund, Akshay S Desai, Michele Senni, Søren L Kristensen, Andrej Dukát, Chen-Huan Chen, Felix Ramires, Martin P Lefkowitz, Margaret F Prescott, Victor C Shi, Jean L Rouleau, Scott D Solomon, Karl Swedberg, Milton Packer, John J V McMurray
AIMS: Elevated serum uric acid concentration (SUA) has been associated with an increased risk of cardiovascular disease, but this may be due to unmeasured confounders. We examined the association between SUA and outcomes as well as the effect of sacubitril/valsartan on SUA in patients with heart failure with reduced ejection fraction (HFrEF) in PARADIGM-HF. METHODS AND RESULTS: The association between SUA and the primary composite outcome of cardiovascular death or heart failure (HF) hospitalization, its components, and all-cause mortality was examined using Cox regression analyses among 8213 patients using quintiles (Q1-Q5) of SUA adjusted for baseline prognostic variables including estimated glomerular filtration rate (eGFR), diuretic dose, and log N-terminal pro-brain natriuretic peptide...
November 30, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29193026/respiratory-sinus-arrhythmia-modeling-longitudinal-change-from-6-weeks-to-2-years-of-age-among-low-income-mexican-americans
#13
Shannon L Jewell, Hye Won Suk, Linda J Luecken
Parasympathetically-mediated heart rate variability (HRV), commonly indexed via respiratory sinus arrhythmia (RSA), is theorized to support the physiological regulation of emotion; however, little is known about the trajectory of change in resting RSA across early development among high-risk populations for whom emotion regulation is crucial. This study characterized resting RSA change from 6 weeks to 2 years of age among 312 low-income Mexican American infants. RSA was assessed longitudinally at 6, 12, 18, 24, 52, 78, and 104 weeks of age...
November 30, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/29189347/the-glucagon-like-peptide-1-analog-exenatide-increases-blood-glucose-clearance-lactate-clearance-and-heart-rate-in-comatose-patients-after-out-of-hospital-cardiac-arrest
#14
Sebastian Wiberg, Jesper Kjaergaard, Henrik Schmidt, Jakob Hartvig Thomsen, Martin Frydland, Matilde Winther-Jensen, Matias Greve Lindholm, Dan Eik Høfsten, Thomas Engstrøm, Lars Køber, Jacob Eifer Møller, Christian Hassager
OBJECTIVES: To investigate the effects of the glucagon-like peptide-1 analog exenatide on blood glucose, lactate clearance, and hemodynamic variables in comatose, resuscitated out-of-hospital cardiac arrest patients. DESIGN: Predefined post hoc analyzes from a double-blind, randomized clinical trial. SETTING: The ICU of a tertiary heart center. PATIENTS: Consecutive sample of adult, comatose patients undergoing targeted temperature management after out-of-hospital cardiac arrest from a presumed cardiac cause, irrespective of the initial cardiac rhythm...
November 20, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29179226/leptin-and-its-relation-to-autonomic-activity-endothelial-cell-activation-and-blood-pressure-in-a-young-black-and-white-population-the-african-predict-study
#15
Blessing O Ahiante, Wayne Smith, Leandi Lammertyn, Aletta E Schutte
An increasing prevalence of obesity-related hypertension is observed in the youth and may have severe consequences for future cardiovascular disease development. Previous studies portrayed leptin as a potential factor involved in obesity-related hypertension development. In order to understand leptin's contributions to early cardiovascular deterioration, we investigated leptin and its associations with measures of autonomic activity, endothelial activation, and blood pressure in young healthy black and white men and women...
November 27, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/29177199/predicting-tacrolimus-concentrations-in-children-receiving-a-heart-transplant-using-a-population-pharmacokinetic-model
#16
Joseph E Rower, Chris Stockmann, Matthew W Linakis, Shaun S Kumar, Xiaoxi Liu, E Kent Korgenski, Catherine M T Sherwin, Kimberly M Molina
Objective: Immunosuppressant therapy plays a pivotal role in transplant success and longevity. Tacrolimus, a primary immunosuppressive agent, is well known to exhibit significant pharmacological interpatient and intrapatient variability. This variability necessitates the collection of serial trough concentrations to ensure that the drug remains within therapeutic range. The objective of this study was to build a population pharmacokinetic (PK) model and use it to determine the minimum number of trough samples needed to guide the prediction of an individual's future concentrations...
2017: BMJ Paediatrics Open
https://www.readbyqxmd.com/read/29163100/resting-heart-rate-variability-facets-of-rumination-and-trait-anxiety-implications-for-the-perseverative-cognition-hypothesis
#17
DeWayne P Williams, Nicole R Feeling, LaBarron K Hill, Derek P Spangler, Julian Koenig, Julian F Thayer
The perseverative cognition hypothesis (PCH) posits that perseveration, defined as the repetitive or sustained activation of cognitive representations of a real or imagined stressor, is a primary mechanism linking psychological (or stress) vulnerability with poor health and disease. Resting vagally mediated heart rate variability (vmHRV) is an important indicator of self-regulatory abilities, stress vulnerability and overall health. Those with lower resting vmHRV are more vulnerable to stress, and thus more likely to engage in perseverative cognition and experience subsequent negative mental health outcomes such as anxiety...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29160157/social-support-self-rated-health-and-low-mood-in-people-on-sick-leave-due-to-heart-failure-a-cross-sectional-study
#18
Lena Nordgren, Anne Söderlund
AIMS: The aim of this study was to investigate social support in relation to self-rated health and the prevalence of low mood in people on sick leave due to heart failure. METHODS: A cross-sectional design was used, and 590 individuals on sick leave due to heart failure in Sweden responded to the postal questionnaire. The questions therein concerned received and needed functional and structural support from managers, work colleagues, families and friends. Multivariate analyses were conducted...
July 1, 2017: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/29159698/analysis-of-biosignals-during-immersion-in-computer-games
#19
Mina Yeo, Seokbeen Lim, Gilwon Yoon
The number of computer game users is increasing as computers and various IT devices in connection with the Internet are commonplace in all ages. In this research, in order to find the relevance of behavioral activity and its associated biosignal, biosignal changes before and after as well as during computer games were measured and analyzed for 31 subjects. For this purpose, a device to measure electrocardiogram, photoplethysmogram and skin temperature was developed such that the effect of motion artifacts could be minimized...
November 17, 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/29154131/impact-of-age-sex-therapeutic-intent-race-and-severity-of-advanced-heart-failure-on-short-term-principal-outcomes-in-the-momentum-3-trial
#20
Daniel J Goldstein, Mandeep R Mehra, Yoshifumi Naka, Christopher Salerno, Nir Uriel, David Dean, Akinobu Itoh, Francis D Pagani, Eric R Skipper, Geetha Bhat, Nirav Raval, Brian A Bruckner, Jerry D Estep, Rebecca Cogswell, Carmelo Milano, Lahn Fendelander, John B O'Connell, Joseph Cleveland
BACKGROUND: Primary outcomes analysis of the Multicenter Study of MagLev Technology in Patients Undergoing MCS Therapy With HeartMate 3 (MOMENTUM 3) trial short-term cohort demonstrated a higher survival rate free of debilitating stroke and reoperation to replace/remove the device (primary end-point) in patients receiving the HeartMate 3 (HM3) compared with the HeartMate (HMII). In this study we sought to evaluate the individual and interactive effects of pre-specified patient subgroups (age, sex, race, therapeutic intent [bridge to transplant/bridge to candidacy/destination therapy] and severity of illness) on primary end-point outcomes in MOMENTUM 3 patients implanted with HM3 and HMII devices...
November 3, 2017: Journal of Heart and Lung Transplantation
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