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https://www.readbyqxmd.com/read/29664425/assessment-of-cardiac-autonomic-functions-by-heart-rate-variability-in-patients-with-restless-leg-syndrome
#1
Abdülmelik Yıldız, Cennet Yıldız, Ahmet Karakurt
OBJECTIVE: The aim of the present study was to investigate cardiac autonomic effects in restless leg syndrome (RLS) using heart rate variability (HRV). METHODS: A total of 35 patients with RLS and 35 healthy individuals were enrolled in the study. The severity of RLS symptoms was assessed using the International Restless Legs Syndrome Study Group rating scale (IRLS). The correlation between the severity of RLS symptoms and HRV parameters measured on an electrocardiogram was analyzed...
April 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/29658440/effects-of-transcutaneous-electrical-nerve-stimulation-in-autonomic-nervous-system-of-hypertensive-patients-a-randomized-controlled-trial
#2
Sandra do Amaral Sartori, Cinara Stein, Christian Correa Coronel, Fabricio Edler Macagnan, Rodrigo Della Mea Plentz
BACKGROUND: Patients with hypertension have altered autonomic nervous system function, which are increased sympathetic activity. Transcutaneous Electrical Nerve Stimulation (TENS) is a useful modality for pain control and has also been shown to be effective in the reduction of sympathetic activity in healthy subjects and individuals with cardiovascular diseases. OBJECTIVE: The aim of this study was to verify the effects of transcutaneous electrical nerve stimulation by the evaluation of heart rate variability (HRV) in patients with essential hypertension...
April 16, 2018: Current Hypertension Reviews
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/29609546/high-frequency-power-of-heart-rate-variability-can-predict-the-outcome-of-thoracic-surgical-patients-with-acute-respiratory-distress-syndrome-on-admission-to-the-intensive-care-unit-a-prospective-single-centric-case-controlled-study
#4
I-Chen Chen, Chew-Teng Kor, Ching-Hsiung Lin, Jane Kuo, Jang-Zern Tsai, Wen-Je Ko, Cheng-Deng Kuo
BACKGROUND: The morbidity and mortality of acute respiratory distress syndrome (ARDS) remains high, and the strategic focus of ARDS research has shifted toward identifying patients at high risk of mortality early in the course of illness. This study intended to identify the heart rate variability (HRV) measure that can predict the outcome of patients with ARDS on admission to the surgical intensive care unit (SICU). METHODS: Patients who had lung or esophageal cancer surgery were included either in the ARDS group (n = 21) if they developed ARDS after surgery or in the control group (n = 11) if they did not...
April 2, 2018: BMC Anesthesiology
https://www.readbyqxmd.com/read/29608603/heart-rate-variability-in-type-2-diabetes-mellitus-a-systematic-review-and-meta-analysis
#5
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/29600951/linear-and-nonlinear-dynamics-of-heart-rate-variability-are-correlated-with-purpose-in-life-and-degree-of-optimism-in-anxiety-disorder-patients
#6
Jihoon Oh, Jeong-Ho Chae
Although heart rate variability (HRV) may be a crucial marker of mental health, how it is related to positive psychological factors (i.e. attitude to life and positive thinking) is largely unknown. Here we investigated the correlation of HRV linear and nonlinear dynamics with psychological scales that measured degree of optimism and happiness in patients with anxiety disorders. Results showed that low- to high-frequency HRV ratio (LF/HF) was increased and the HRV HF parameter was decreased in subjects who were more optimistic and who felt happier in daily living...
April 2018: Nonlinear Dynamics, Psychology, and Life Sciences
https://www.readbyqxmd.com/read/29596945/association-between-diabetic-peripheral-neuropathy-and-heart-rate-variability-in-subjects-with-type-2-diabetes
#7
S K M Azizul Islam, Dongkyu Kim, Young-Sil Lee, Seong-Su Moon
AIM: This study evaluated the association of Heart rate variability (HRV) measurements with diabetic peripheral neuropathy (DPN) in patients with type 2 diabetes. METHODS: This study included 102 Korean subjects with type 2 diabetes. The Michigan neuropathy screening instrument (MNSI) questionnaire score, the MNSI examination score (MNSIES) and the total symptom score were examined for DPN evaluation. Noninvasive HRV measurements were performed using photoelectric plethysmography...
March 26, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29595875/impaired-autonomic-function-in-adolescents-born-preterm
#8
Kristin Haraldsdottir, Andrew M Watson, Kara N Goss, Arij G Beshish, David F Pegelow, Mari Palta, Laura H Tetri, Gregory P Barton, Melissa D Brix, Ryan M Centanni, Marlowe W Eldridge
Preterm birth temporarily disrupts autonomic nervous system (ANS) development, and the long-term impacts of disrupted fetal development are unclear in children. Abnormal cardiac ANS function is associated with worse health outcomes, and has been identified as a risk factor for cardiovascular disease. We used heart rate variability (HRV) in the time domain (standard deviation of RR intervals, SDRR; and root means squared of successive differences, RMSSD) and frequency domain (high frequency, HF; and low frequency, LF) at rest, as well as heart rate recovery (HRR) following maximal exercise, to assess autonomic function in adolescent children born preterm...
March 2018: Physiological Reports
https://www.readbyqxmd.com/read/29584487/comparison-of-outlier-heartbeat-identification-and-spectral-transformation-strategies-for-deriving-heart-rate-variability-indices-for-drivers-at-different-stages-of-sleepiness
#9
Fabio Forcolin, Ruben Buendia, Stefan Candefjord, Johan Karlsson, Bengt Arne Sjöqvist, Anna Anund
OBJECTIVE: Appropriate preprocessing for detecting and removing outlier heartbeats and spectral transformation is essential for deriving heart rate variability (HRV) indices from cardiac monitoring data with high accuracy. The objective of this study is to evaluate agreement between standard preprocessing methods for cardiac monitoring data used to detect outlier heartbeats and perform spectral transformation, in relation to estimating HRV indices for drivers at different stages of sleepiness...
February 28, 2018: Traffic Injury Prevention
https://www.readbyqxmd.com/read/29569983/the-development-of-a-novel-high-precision-major-depressive-disorder-screening-system-using-transient-autonomic-responses-induced-by-dual-mental-tasks
#10
Takemi Matsui, Toshikazu Shinba, Guanghao Sun
12.6% of major depressive disorder (MDD) patients have suicide intent, while it has been reported that 43% of patients did not consult their doctors for MDD, automated MDD screening is eagerly anticipated. Recently, in order to achieve automated screening of MDD, biomarkers such as multiplex DNA methylation profiles or physiological method using near infra-red spectroscopy (NIRS) have been studied, however, they require inspection using 96-well DNA ELIZA kit after blood sampling or significant cost. Using a single-lead electrocardiography (ECG), we developed a high-precision MDD screening system using transient autonomic responses induced by dual mental tasks...
March 23, 2018: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/29565770/vascular-and-autonomic-changes-in-adult-cancer-patients-receiving-anti-cancer-chemotherapy
#11
Jacob N Frye, Shelbi L Sutterfield, Jacob Troy Caldwell, Bradley Jon Behnke, Steven W Copp, Heather R Banister, Carl J Ade
BACKGROUND: Chemotherapy is associated with acute and long-term cardiotoxicity. To date, risk assessment has primarily focused on the heart; however, recent findings suggest that vascular and autonomic function may also be compromised. Whether this occurs during chemotherapy treatment remains unknown. Therefore, the present study evaluated carotid artery stiffness, cardiovagal baroreflex sensitivity (cBRS), and heart rate variability (HRV) in cancer patients currently being treated with adjuvant chemotherapy...
March 22, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29561965/heart-rate-and-its-variability-assessed-by-spectral-analysis-in-elderly-subjects-with-orthostatic-hypotension-a-case-control-study
#12
Rose Mary Ferreira Lisboa da Silva, Carlos Eduardo de Souza Miranda, Maira Tonidandel Barbosa, Maria Aparecida Camargos Bicalho
BACKGROUND: The prevalence of orthostatic hypotension (OH) increases with age and is associated with changes in autonomic regulation of blood pressure (BP) and heart rate (HR). OBJECTIVE: to assess HR and HR variability (HRV) in elderly subjects with OH and determine OH predictors. METHODS: a total of 105 patients aged ≥ 60 years, 39 with OH (case group) and 66 without OH (control group) (age-matched) were studied. Patients underwent clinical assessment, electrocardiogram, biochemistry tests and Holter monitoring for spectral analysis of HRV (Fourier transform) in the supine and orthostatism positions to identify low frequency (LF) and high frequency (HF) components, as well as the LF/HF ratio...
March 19, 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29558039/analysis-of-peripheral-nerve-and-autonomic-nervous-system-function-and-the-stage-of-microangiopathy-in-patients-with-secondary-raynaud-s-phenomenon-in-the-course-of-connective-tissue-diseases
#13
Izabela Gosk-Bierska, Maria Misterska-Skóra, Marta Wasilewska, Małgorzata Bilińska, Jerzy Gosk, Rajmund Adamiec, Magdalena Koszewicz
BACKGROUND: The pathogenesis of secondary Raynaud's phenomenon (SRP) associated with connective tissue diseases (CTD) is not entirely understood. Nervous system dysfunction and microangiopathy are considered to be causes of this pathology. OBJECTIVES: Peripheral and autonomic nervous system function, the stage of microangiopathy, and the relationships between these in patients with SRP were analyzed. MATERIAL AND METHODS: In the study, 20 patients with CTD-related SRP and 30 healthy controls were subject to capillaroscopy, standard conduction velocity tests and conduction velocity distribution (CVD) tests in ulnar and peroneal nerves, heart rate variability (HRV), and sympathetic skin response (SSR) tests...
March 20, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29538539/complexity-of-autonomic-nervous-system-function-in-individuals-with-copd
#14
Laís Manata Vanzella, Aline Fernanda Barbosa Bernardo, Tatiana Dias de Carvalho, Franciele Marques Vanderlei, Anne Kastelianne França da Silva, Luiz Carlos Marques Vanderlei
OBJECTIVE: To evaluate autonomic modulation in individuals with COPD, compared with healthy controls, via recurrence plots (RPs) and linear heart rate variability (HRV) indices. METHODS: We analyzed data on 74 volunteers, who were divided into two groups: COPD (n = 43) and control (n = 31). For calculation of HRV indices, heart rate was measured beat-by-beat during 30 min of supine rest using a heart-rate meter. We analyzed linear indices in the time and frequency domains, as well as indices derived from the RPs...
January 2018: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/29518111/cardiac-parasympathetic-index-identifies-subjects-with-adult-obstructive-sleep-apnea-a-simultaneous-polysomnographic-heart-rate-variability-study
#15
Maria Salsone, Basilio Vescio, Andrea Quattrone, Ferdinando Roccia, Miriam Sturniolo, Francesco Bono, Umberto Aguglia, Antonio Gambardella, Aldo Quattrone
OBJECTIVE: To evaluate circadian fluctuations and night/day ratio of Heart Rate Variability (HRV) spectral components in patients with obstructive sleep apnea (OSA) in comparison with controls. PARTICIPANTS AND METHODS: This is a simultaneous HRV-polysomnographic (PSG) study including 29 patients with OSA and 18 age-sex-matched controls. Four patients with OSA dropped out. All participants underwent PSG and HRV analysis. We measured the 24-hour fluctuations and the night/day ratio of low frequency (LF) and high frequency (HF) spectral components of HRV in all subjects and controls...
2018: PloS One
https://www.readbyqxmd.com/read/29515436/association-between-age-and-changes-in-heart-rate-variability-after-hemodialysis-in-patients-with-diabetes
#16
Sheng-Wen Niu, Jiun-Chi Huang, Szu-Chia Chen, Hugo Y-H Lin, I-Ching Kuo, Pei-Yu Wu, Yi-Wen Chiu, Jer-Ming Chang
Background: Heart rate variability (HRV) represents changes in the time between successive heart beats, and it has been used to assess the autonomic nervous system. Previous studies have reported autonomic dysfunction in diabetic patients undergoing hemodialysis (HD), however, no studies have evaluated the effects of age on changes in HRV in these patients. The aim of this study was to examine the effects of age on changes in HRV in diabetic HD patients. Methods: We enrolled 84 diabetic patients receiving maintenance HD...
2018: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29511661/acute-effects-of-endurance-exercise-on-nocturnal-autonomic-functions-in-sedentary-subjects-a-pilot-study
#17
Emi Yuda, Yoshifumi Moriyama, Toshihiko Mori, Yutaka Yoshida, Makoto Kawahara, Junichiro Hayano
Nocturnal heart rate variability (HRV) is thought to reflect healthy recovery function of the autonomic nervous system. Although exercise is recommended for health promotion, exercise itself decreases HRV. We studied acute effect of daytime exercise on nocturnal HRV in 5 healthy adults (age, 22-40 years; 2 female subjects) without regular exercise habit. Using a treadmill, they performed 30-min walking at 4 km/hr and 30-min running at 9 km/hr from 11 a.m. on different days at an interval of 2 weeks. On these days and a day without exercise (control), Holter electrocardiograms were recorded from 9 a...
February 2018: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29509172/effect-of-septoplasty-on-the-heart-rate-variability-in-patients-with-nasal-septum-deviation
#18
Metin Celiker, Yuksel Cicek, Suat Tezi, Abdulkadir Ozgur, Hatice Beyazal Polat, Engin Dursun
BACKGROUND: Nasal septum deformities (NSD) are one of the most common causes of upper airway obstruction. Heart rate variability (HRV) is a physiologic parameter that is affected by the balance between the sympathetic and parasympathetic tonus. OBJECTIVE: The aim of this study was to evaluate the effects of a septoplasty operation on HRV parameters as assessed by 24 hours ambulatory Holter recordings in patients with NSD. METHODS: The prospective study involved 54 consecutive patients (16 women and 38 men) who underwent septoplasty due to a marked C- or S-shaped NSD...
March 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29504257/correlation-of-retinal-neurodegeneration-with-measures-of-peripheral-autonomic-neuropathy-in-type-1-diabetes
#19
Berthold Pemp, Stefan Palkovits, Kinga Howorka, Jiri Pumprla, Stefan Sacu, Gerhard Garhöfer, Michaela Bayerle-Eder, Leopold Schmetterer, Ursula Schmidt-Erfurth
PURPOSE: To evaluate the relationship of neuroretinal layer thickness with sensitive measures of cardiovascular autonomic neuropathy in diabetic patients with non-proliferative diabetic retinopathy (NPDR). METHODS: Twenty-seven eyes of 27 patients with type 1 diabetes presenting with mild-to-moderate NPDR were compared to 27 healthy control (HC) eyes matched for age and gender. The total macular volume (TMV) and the volumes of individual neurosensory layers in the macula were analysed from spectral domain optical coherence tomography using automated layer segmentation...
March 5, 2018: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29502530/successful-use-of-closed-loop-allostatic-neurotechnology-for-post-traumatic-stress-symptoms-in-military-personnel-self-reported-and-autonomic-improvements
#20
Catherine L Tegeler, Lee Gerdes, Hossam A Shaltout, Jared F Cook, Sean L Simpson, Sung W Lee, Charles H Tegeler
BACKGROUND: Military-related post-traumatic stress (PTS) is associated with numerous symptom clusters and diminished autonomic cardiovascular regulation. High-resolution, relational, resonance-based, electroencephalic mirroring (HIRREM®) is a noninvasive, closed-loop, allostatic, acoustic stimulation neurotechnology that produces real-time translation of dominant brain frequencies into audible tones of variable pitch and timing to support the auto-calibration of neural oscillations. We report clinical, autonomic, and functional effects after the use of HIRREM® for symptoms of military-related PTS...
December 22, 2017: Military Medical Research
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