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heart rate variability and well-being

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https://www.readbyqxmd.com/read/29679898/heart-rate-variability-alterations-in-late-life-depression-a-meta-analysis
#1
REVIEW
Lydia Brown, Chandan Karmakar, Richard Gray, Ripu Jindal, Terrence Lim, Christina Bryant
OBJECTIVE: There is strong evidence for a bi-directional relationship between heart-health and depression in later life, but the physiological mechanisms underlying this relationship remain unclear. Heart rate variability is one promising factor that might help explain this relationship. We present results of a meta-analysis that considers heart rate variability alterations in older adults with depression. METHODS: Literature search of Embase, PsychInfo and Medline revealed five clinical studies and six observational studies that examined the relationship between heart rate variability and depression in adults with a mean age over 60...
April 10, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29651216/linear-analysis-of-autonomic-activity-and-its-correlation-with-creatine-kinase-mb-in-overt-thyroid-dysfunctions
#2
Manisha Mavai, Yogendra Raj Singh, R C Gupta, Sandeep K Mathur, Bharti Bhandari
Autonomic activity may be deranged in thyroid dysfunctions and may lead to cardiovascular morbidity and mortality. Myopathy is a common manifestation in thyroid disorders and may be associated with raised serum creatine kinase (CK). We hypothesized that cardiovascular abnormality in thyroid dysfunction may manifest as raised CK-MB. This study was designed to investigate the correlation of CK and its isoform CK-MB with thyroid profile and linear parameters of heart rate variability (HRV). The study was conducted on 35 hypothyroid and hyperthyroid patients each, and 25 age-matched healthy controls...
April 2018: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/29627347/trpa1-mediates-the-cardiac-effects-of-acrolein-through-parasympathetic-dominance-but-also-sympathetic-modulation-in-mice
#3
Nicole Kurhanewicz, Allen Ledbetter, Aimen Farraj, Mehdi Hazari
Numerous studies have demonstrated that short-term air pollution exposure causes cardiac autonomic imbalance as measured by heart rate variability (HRV). We previously showed that a single exposure to acrolein, a ubiquitous gaseous component of air pollution, not only causes autonomic imbalance, but also increases arrhythmia through transient receptor potential A1 (TRPA1) cation channels. Thus, the goal of this study was to characterize acrolein-induced autonomic changes in both normal and TRPA1-knockout mice (KO)...
April 5, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29624675/parasympathetic-and-sympathetic-activity-are-associated-with-individual-differences-in-neural-indices-of-selective-attention-in-adults
#4
Ryan J Giuliano, Christina M Karns, Theodore A Bell, Seth Petersen, Elizabeth A Skowron, Helen J Neville, Eric Pakulak
Multiple theoretical frameworks posit that interactions between the autonomic nervous system and higher-order neural networks are crucial for cognitive and emotion regulation. However, few studies have directly examined the relationship between measures of autonomic physiology and brain activity during cognitive tasks, and fewer studies have examined both the parasympathetic and sympathetic autonomic branches when doing so. Here, 93 adults completed an ERP auditory selective attention task concurrently with measures of parasympathetic activity (high-frequency heart rate variability; HF-HRV) and sympathetic activity (preejection period; PEP)...
April 6, 2018: Psychophysiology
https://www.readbyqxmd.com/read/29623050/linear-and-nonlinear-analyses-of-the-cardiac-autonomic-control-in-children-with-developmental-coordination-disorder-a-case-control-study
#5
Jorge L Cavalcante Neto, Antonio R Zamunér, Bianca C Moreno, Ester Silva, Eloisa Tudella
Children with Developmental Coordination Disorder (DCD) and children at risk for DCD (r-DCD) present motor impairments interfering in their school, leisure and daily activities. In addition, these children may have abnormalities in their cardiac autonomic control, which together with their motor impairments, restrict their health and functionality. Therefore, this study aimed to assess the cardiac autonomic control, by linear and nonlinear analysis, at supine and during an orthostatic stimulus in DCD, r-DCD and typically developed children...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29622354/perioperative-risk-factors-for-hospital-readmission-after-elective-endovascular-aortic-aneurysm-repair
#6
Samuel L Chen, Isabella J Kuo, Nii-Kabu Kabutey, Fady Gabra, Roy M Fujitani
BACKGROUND: Elective endovascular aneurysm repair (EVAR) is generally well tolerated. However, the incidence of hospital readmission after EVAR and the risk factors and reasons for it are not well studied. This study sought to determine the incidence, to characterize the indications, and to identify perioperative patient-centered risk factors for hospital readmission within 30 days after elective EVAR. METHODS: All patients who underwent EVAR electively in 2012 to 2013 were identified from the American College of Surgeons National Surgical Quality Improvement Program Targeted Vascular database (n = 3886)...
April 2, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29608603/heart-rate-variability-in-type-2-diabetes-mellitus-a-systematic-review-and-meta-analysis
#7
Thomas Benichou, Bruno Pereira, Martial Mermillod, Igor Tauveron, Daniela Pfabigan, Salwan Maqdasy, Frédéric Dutheil
BACKGROUND: Cardiac autonomic neuropathy in type 2 dibetes mellitus (T2DM) patients is frequent and associated with high cardiovascular mortality. Heart rate variability (HRV) is the gold standard to measure cardiac autonomic neuropathy. We aimed to conduct a systematic review and meta-analysis to evaluate the impact of T2DM on HRV parameters. METHODS: The PubMed, Cochrane Library, Embase and Science Direct databases were searched on 1st October 2017 using the keywords "diabetes" AND ("heart rate variability" OR "HRV")...
2018: PloS One
https://www.readbyqxmd.com/read/29596477/using-support-vector-machines-on-photoplethysmographic-signals-to-discriminate-between-hypovolemia-and-euvolemia
#8
Natasa Reljin, Gary Zimmer, Yelena Malyuta, Kirk Shelley, Yitzhak Mendelson, David J Blehar, Chad E Darling, Ki H Chon
Identifying trauma patients at risk of imminent hemorrhagic shock is a challenging task in intraoperative and battlefield settings given the variability of traditional vital signs, such as heart rate and blood pressure, and their inability to detect blood loss at an early stage. To this end, we acquired N = 58 photoplethysmographic (PPG) recordings from both trauma patients with suspected hemorrhage admitted to the hospital, and healthy volunteers subjected to blood withdrawal of 0.9 L. We propose four features to characterize each recording: goodness of fit (r2), the slope of the trend line, percentage change, and the absolute change between amplitude estimates in the heart rate frequency range at the first and last time points...
2018: PloS One
https://www.readbyqxmd.com/read/29575352/heart-rate-variability-characteristics-of-patients-with-irritable-bowel-syndrome-and-associations-with-symptoms
#9
A Polster, P Friberg, V Gunterberg, L Öhman, B Le Nevé, H Törnblom, M Cvijovic, M Simren
BACKGROUND: Disturbed brain-gut interactions are assumed to be of importance for symptom generation in patients with irritable bowel syndrome (IBS). The autonomic nervous system (ANS) is part of the bidirectional brain-gut communication, but previous studies in IBS show diverging results. We aimed to identify subgroups of IBS patients with distinct ANS characteristics differentiating them from healthy controls (HC), and to study associations between ANS status and symptoms. METHODS: Heart rate variability (HRV) was measured in IBS patients and HC (Holter monitoring: supine and standing positions with controlled respiration and ambulatory 24-hour period)...
March 25, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29564635/-pain-therapy-for-premature-babies-and-neonates
#10
M Richter, B Seipolt
Pain is a central topic on neonatal intensive care units (NICU). Acute as well as prolonged (continuous and chronic) pain frequently occurs. Due to a lack of validated physiological measurement instruments for pain (e. g. saliva cortisol, skin conductance and heart rate variability) pain in neonatology can only be assessed by external observation through the bedside team with pain scores using a regular, standardized procedure. During this very vulnerable period pain and medications (analgesics/sedatives) can negatively influence the brain development of premature babies and neonates...
March 21, 2018: Der Schmerz
https://www.readbyqxmd.com/read/29559942/negative-affectivity-depression-and-resting-heart-rate-variability-hrv-as-possible-moderators-of-endogenous-pain-modulation-in-functional-somatic-syndromes
#11
Maaike Van Den Houte, Lukas Van Oudenhove, Ilse Van Diest, Katleen Bogaerts, Philippe Persoons, Jozef De Bie, Omer Van den Bergh
Background: Several studies have shown that patients with functional somatic syndromes (FSS) have, on average, deficient endogenous pain modulation (EPM), as well as elevated levels of negative affectivity (NA) and high comorbidity with depression and reduced resting heart rate variability (HRV) compared to healthy controls (HC). The goals of this study were (1) to replicate these findings and (2) to investigate the moderating role of NA, depression, and resting HRV in EPM efficiency within a patient group with fibromyalgia and/or chronic fatigue syndrome (CFS)...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29543518/the-heart%C3%A2-s-rhythm-n-blues-sex-differences-in-circadian-variation-patterns-of-vagal-activity-vary-by-depressive-symptoms-in-predominantly-healthy-employees
#12
Marc N Jarczok, Corina Aguilar-Raab, Julian Koenig, Michael Kaess, Jeremy C Borniger, Randy J Nelson, Martica Hall, Beate Ditzen, Julian F Thayer, Joachim E Fischer
INTRODUCTION: Successful regulation of emotional states is positively associated to mental health, while difficulties in regulating emotions are negatively associated to overall mental health and in particular associated with anxiety or depression symptoms. A key structure associated to socio-emotional regulatory processes is the central autonomic network. Activity in this structure is associated to vagal activity can be indexed noninvasively and simply by measures of peripheral cardiac autonomic modulations such as heart rate variability...
March 15, 2018: Chronobiology International
https://www.readbyqxmd.com/read/29540652/comparison-of-electropharmacological-effects-between-terfenadine-and-its-active-derivative-fexofenadine-using-a-cross-over-study-in-halothane-anesthetized-dogs-to-analyze-variability-of-pharmacodynamic-and-pharmacokinetic-profiles-of-terfenadine-and-torsadogenic
#13
Kentaro Ando, Yuji Nakamura, Mihoko Hagiwara-Nagasawa, Hiroyuki Harada, Hiroyoshi Miyamoto, Naoki Inamura, Kan Takagi, Ai Goto, Koki Chiba, Nur Jaharat Lubna, Hiroko Izumi-Nakaseko, Atsuhiko T Naito, Atsushi Sugiyama
In order to better understand the variability of pharmacodynamic and pharmacokinetic profiles of terfenadine between the previous studies as well as to qualitatively and quantitatively examine the proarrhythmic potential of its major active metabolite fexofenadine in comparison with that of terfenadine, we directly compared their electropharmacological effects with halothane-anesthetized dogs (n = 3). For this purpose, we adopted a cross-over design, which can directly compare the effects of terfenadine and fexofenadine under the identical metabolic condition...
2018: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/29540640/sudden-cardiac-death-from-the-perspective-of-nonlinear-dynamics
#14
Motohisa Osaka
There are some reports that sympathetic nerve activity (SNA) shows a characteristic pattern a few hours before the onset of lethal ventricular arrhythmias. If so, it could be possible to predict sudden cardiac death a few hours in advance of its occurrence. Recently, we reported that a previously unidentified V-trough of SNA is a potential precursor of lethal cardiac events by examining 24-hour ambulatory electrocardiograms in which such an event was recorded by chance. In contrast, the chaotic nature of heart rate variability has been noted recently from the viewpoint of nonlinear dynamics...
2018: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/29535067/do-mothers-sound-good-a-systematic-review-of-the-effects-of-maternal-voice-exposure-on-preterm-infants-development
#15
REVIEW
Livio Provenzi, Sara Broso, Rosario Montirosso
Preterm infants are hospitalized in the Neonatal Intensive Care Unit (NICU) and are precociously separated from their mothers. Although developmental care interventions are meant to facilitate mother-infant bonding, physical contact is not always possible. Maternal voice exposure has been proposed as a way to foster maternal closeness and support postnatal bonding. Here we present a systematic review on maternal voice effects on preterm infants' development. Literature search occurred on 4 databases (PubMed, Scopus, Web of Science and CINAHL)...
March 10, 2018: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29522373/cardiorespiratory-interactions-in-humans-and-animals-rhythms-for-life
#16
Maja Elstad, Erin L O'Callaghan, Alexander J Smith, A Ben-Tal, Rohit Ramchandra
The cardiorespiratory system exhibits oscillations from a range of sources. One of the most studied oscillations is heart rate variability, which is thought to be beneficial and can serve as an index of a healthy cardiovascular system. Heart rate variability is dampened in many diseases including depression, autoimmune diseases, hypertension and heart failure. Thus, understanding the interactions that lead to heart rate variability, and its physiological role, could help with prevention, diagnosis and treatment of cardiovascular diseases...
March 9, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29518898/caloric-restriction-and-its-effect-on-blood-pressure-heart-rate-variability-and-arterial-stiffness-and-dilatation-a-review-of-the-evidence
#17
REVIEW
Rachel Nicoll, Michael Y Henein
Essential hypertension, fast heart rate, low heart rate variability, sympathetic nervous system dominance over parasympathetic, arterial stiffness, endothelial dysfunction and poor flow-mediated arterial dilatation are all associated with cardiovascular mortality and morbidity. This review of randomised controlled trials and other studies demonstrates that caloric restriction (CR) is capable of significantly improving all these parameters, normalising blood pressure (BP) and allowing patients to discontinue antihypertensive medication, while never becoming hypotensive...
March 7, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29513620/validation-of-a-pulse-oximetry-system-for-high-altitude-waterfowl-by-examining-the-hypoxia-responses-of-the-andean-goose-chloephaga-melanoptera
#18
Catherine M Ivy, Julia M York, Sabine L Lague, Beverly A Chua, Luis Alza, Kevin G McCracken, William K Milsom, Graham R Scott
Hypoxia at high altitudes constrains O2 supply to support metabolism, thermoregulation in the cold, and exercise. High-altitude natives that somehow overcome this challenge-who live, reproduce, and sometimes perform impressive feats of exercise at high altitudes-are a powerful group in which to study the evolution of physiological systems underlying hypoxia resistance. Here, we sought to determine whether a common pulse oximetry system for rodents (MouseOx Plus) can be used reliably in studies of high-altitude birds by examining the hypoxia responses of the Andean goose...
May 2018: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/29506854/spectral-analysis-of-heart-rate-variability-predicts-mortality-and-instability-from-vascular-injury
#19
Kiavash R Koko, Brian D McCauley, John P Gaughan, Marc W Fromer, Ryan S Nolan, Ashleigh L Hagaman, Spencer A Brown, Joshua P Hazelton
BACKGROUND: Spectral analysis of continuous blood pressure and heart rate variability provides a quantitative assessment of autonomic response to hemorrhage. This may reveal markers of mortality as well as endpoints of resuscitation. METHODS: Fourteen male Yorkshire pigs, ranging in weight from 33 to 36 kg, were included in the analysis. All pigs underwent laparotomy and then sustained a standardized retrohepatic inferior vena cava injury. Animals were then allowed to progress to class 3 hemorrhagic shock and where then treated with abdominal sponge packing followed by 6 h of crystalloid resuscitation...
April 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29506482/increased-circulating-bioactive-c-type-natriuretic-peptide-is-associated-with-reduced-heart-rate-variability-in-patients-with-chronic-kidney-disease
#20
Lulu Wang, Wenjin Liu, Yanting Yu, Lei Jiang, Junwei Yang
BACKGROUND: C-type natriuretic peptide (CNP) is a member of the natriuretic peptide family and have been implicated to be involved in maintaining vascular homeostasis and acting as a cardiac chronotropic agent in experimental studies. However, clinical evidence of its participation in cardiovascular regulation is lacking, especially in patients with chronic kidney disease (CKD). We aimed to explore the association of circulating CNP with cardiovascular alterations in CKD. METHODS: Seventy-six subjects with CKD were recruited...
March 5, 2018: BMC Nephrology
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