Evaluation of the Autonomic Nervous System of the Heart in Male Patients with Mitral Valve Prolapse Syndrome Using Respiratory Sinus Arrhythmia and Dynamic Exercise

Cardiology ◽  
1989 ◽  
Vol 76 (6) ◽  
pp. 433-441 ◽  
Author(s):  
Lourenço Gallo, Jr. ◽  
José Morelo-Filho ◽  
Benedito C. Maciel ◽  
José A. Marin-Neto ◽  
Luiz E.B. Martins ◽  
...  
Keyword(s):  
Nervous System ◽  
Autonomic Nervous System ◽  
Mitral Valve ◽  
Respiratory Sinus Arrhythmia ◽  
Mitral Valve Prolapse ◽  
Dynamic Exercise ◽  
Sinus Arrhythmia ◽  
Autonomic Nervous ◽  
Male Patients

scholarly journals The state of response of autonomic nervous system in children with mitral valve prolapse

2021 ◽  
Vol 26 (4) ◽  
pp. 74-80
Author(s):  
І.О.  Mitiuriaeva-Korniyko ◽  
O.V. Kuleshov ◽  
Ya.A. Medrazhevska ◽  
L.O. Fik ◽  
T.D. Klets
Keyword(s):  
Heart Rate ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Mitral Valve ◽  
Frequency Domain ◽  
Mitral Valve Prolapse ◽  
Low Frequency ◽  
Very Low Frequency ◽  
Autonomic Nervous ◽  
Significant Difference

The article presents summarized materials on connective tissue dysplasia of the heart, primary mitral valve prolapse, dysfunction of the autonomic system. Aim of research: to estimate the condition of autonomic nervous system in children with primary mitral valve prolapse. We examined 106 children with mitral valve prolapse aged from 13 to 17 years old on the clinical base of city hospital “Center of mother and child” in Vinnitsya. Research included time and frequency domain (evaluation with cardiointervalography. Final results were compared with the control group records. The results showed no statistical significance among time domain parameters in the main group of children. All these indices displayed tendency to sympathetic and parasympathetic autonomic nervous system tonus increase in boys. However, sympathicotonia tendency was noted in girls only. Frequency domain parameters showed similar results, compared with the previous. Nevertheless, very low frequency parameters had statistically significant difference in both subgroups of patience with mitral valve prolapse, including males (3205.8±190.9 against 1717±154, р<0.05) and females (3280±220.1 against 1433±811, р<0.05). There were no statistically significant difference among other frequency domain parameters. Conclusions: we estimated that children with mitral valve prolapse have imbalanced autonomic homeostasis manifested by tone disturbances of both autonomic vegetative system branches with sympathetic predominance. Patients with primary mitral valve prolapse generally have increased sympathetic tone - both boys and girls - according to spectral analysis of heart rate variability indices, heart rate oscillation power of a very low frequency in particular (p<0.05). In children with mitral valve prolapse, the tone of parasympathetic nervous system is generally normal; there is a tendency to its increase in boys and decrease in girls. These children should be under close medical supervision by pediatricians and cardiologists.

scholarly journals Use of Mobile Technology Paired with Heart Rate Monitor to Remotely Quantify Behavioral Health Markers among Military Reservists and First Responders

2021 ◽  
Vol 186 (Supplement_1) ◽  
pp. 17-24
Author(s):  
Maria I Davila ◽  
Paul N Kizakevich ◽  
Randy Eckhoff ◽  
Jessica Morgan ◽  
Sreelatha Meleth ◽  
...  
Keyword(s):  
Heart Rate ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Respiratory Sinus Arrhythmia ◽  
Low Frequency ◽  
Physiological Data ◽  
Heart Period ◽  
Sinus Arrhythmia ◽  
Heart Rate Monitor ◽  
Autonomic Nervous

ABSTRACT Introduction Heart rate variability (HRV) is a biological marker that reflects an individual’s autonomic nervous system regulation. Psychological resilience is an individual’s ability to recover from an adverse event and return to physiological homeostasis and mental well-being, indicated by higher resting HRV. The Biofeedback Assisted Resilience Training (BART) study evaluates a resilience-building intervention, with or without HRV biofeedback. This article evaluates the feasibility of remote psychophysiological research by validating the HRV data collected. Materials and Methods The BART platform consists of a mobile health application (BART app) paired to a wearable heart rate monitor. The BART app is installed on the participant’s personal phone/tablet to track and collect self-report psychological and physiological data. The platform collects raw heart rate data and processes HRV to server as online biofeedback. The raw data is processed offline to derive HRV for statistical analysis. The following HRV parameters are validated: inter-beat interval, respiratory sinus arrhythmia, low-frequency HRV, biofeedback HRV, and heart period. Bland–Altman and scatter plots are used to compare and contrast online and offline HRV measures. Repeated-measures ANOVA are used to compared means across tasks during the stress (rest, stress, and recovery) and training (rest and paced breathing) sessions in order to validate autonomic nervous system changes to physiological challenges. Results The analyses included 245 participants. Bland–Altman plots showed excellent agreement and minimal bias between online and offline unedited inter-beat interval data during the stress session. RMANOVA during the training session indicated a significant strong effect on biofeedback HRV, F(11,390) = 967.96, P &lt; .01. During the stress session, RMANOVA showed significant strong effect on respiratory sinus arrhythmia and low-frequency HRV, and a significant but weak effect on heart period. Conclusions The BART digital health platform supports remote behavioral and physiological data collection, intervention delivery, and online HRV biofeedback.

scholarly journals Intrinsic Laryngeal Muscle Response to a Public Speech Preparation Stressor: Personality and Autonomic Predictors

2020 ◽  
Vol 63 (9) ◽  
pp. 2940-2951
Author(s):  
Leah B. Helou ◽  
J. Richard Jennings ◽  
Clark A. Rosen ◽  
Wei Wang ◽  
Katherine Verdolini Abbott
Keyword(s):  
Nervous System ◽  
Autonomic Nervous System ◽  
Respiratory Sinus Arrhythmia ◽  
Predictor Variable ◽  
Voice Disorders ◽  
Stress Reaction ◽  
System Response ◽  
Sinus Arrhythmia ◽  
Autonomic Nervous ◽  
Causal Pathway

Purpose Laboratory stressors have been shown to impact the activity of the intrinsic laryngeal muscles (ILMs), which may be part of the final causal pathway in some stress-induced voice disorders. Previous research suggests that personality traits such as stress reaction might increase one's susceptibility to these problems. Also, the autonomic nervous system response is implicated in the pathogenesis of voice disorders putatively involving ILM hyperfunction. The purpose of this study was to investigate personality and autonomic nervous system predictors of ILM responses to stressor exposure. Method Thirty-seven physically and vocally healthy female adults completed a personality questionnaire and were subjected to a speech preparation task intended to induce stress. Fine wire electromyography of the ILMs was performed so that the activity of these muscles could be measured prior to and during the stressor. Participants' trait stress reaction was measured as a personality-based predictive variable, as was respiratory-corrected respiratory sinus arrhythmia, a putative measure of vagal outflow to the heart. Results The personality measure trait stress reaction uniquely predicted thyroarytenoid, trapezius, and tibialis activity, whereas respiratory sinus arrhythmia uniquely predicted the activity of all muscles studied. Differences were observed in the autonomic predictor variable as a function of whether or not effects of respiration were accounted for in the variable's calculation. Conclusions This study explores the potential mediating roles of personality and autonomic function in ILM activity during a stressor. Both variables have value in predicting ILM activity during stressor exposure.

scholarly journals Autonomic reactivity in relation to attachment and early adversity among foster children

2010 ◽  
Vol 22 (1) ◽  
pp. 109-118 ◽  
Author(s):  
Mirjam Oosterman ◽  
J. Clasien De Schipper ◽  
Philip Fisher ◽  
Mary Dozier ◽  
Carlo Schuengel
Keyword(s):  
Nervous System ◽  
Autonomic Nervous System ◽  
Respiratory Sinus Arrhythmia ◽  
Early Adversity ◽  
Coding System ◽  
Strange Situation ◽  
Sinus Arrhythmia ◽  
Autonomic Nervous ◽  
Quality Of Relationships

AbstractThis study examined whether the quality of relationships with foster caregivers was associated with autonomic nervous system reactivity of children during separation and reunion with their foster caregiver. Moreover, effects of early adversity were examined in relation to attachment and autonomic nervous system reactivity. The sample included 60 children between 26 and 88 months of age, who participated with their primary foster caregivers in the Strange Situation. Respiratory sinus arrhythmia and preejection period were measured as indicators of parasympathetic and sympathetic nervous system reactivity, respectively. Attachment quality (ordered/disordered and secure/insecure attachment), was coded on the basis of children's behavior in the Strange Situation using the Cassidy and Marvin coding system. Children with a background of neglect and those with disordered (disorganized–controlling or insecure–other) attachment showed most sympathetic reactivity during the procedure. Moreover, children with disordered attachment showed less vagal regulation (respiratory sinus arrhythmia decreases on separation and increases on reunion) than children with ordered attachment. The findings show that the quality of relationships with current caregivers, and to a lesser extent specific experiences of neglect, may have an impact on children's abilities to regulate emotions in the context of environmental stress and challenges.

Genetics of Autonomic Nervous System Activity

2013 ◽  
Author(s):  
Eco de Geus ◽  
Rene van Lien ◽  
Melanie Neijts ◽  
Gonneke Willemsen
Keyword(s):  
Cardiovascular Disease ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Sympathetic Activity ◽  
Twin Studies ◽  
Large Individual ◽  
Sinus Arrhythmia ◽  
Autonomic Nervous ◽  
Heritability Estimates ◽  
Measurement Strategies

Large individual differences in the activity of the autonomic nervous system (ANS) play a key role in risk for cardiovascular disease. This chapter presents an overview of the measurement strategies that can be used to study ANS activity in samples that are sufficiently large to allow genetic analyses. Heart rate variability, in particular, respiratory sinus arrhythmia (RSA) is identified as the measure of choice to index parasympathetic activity, whereas preejection period (PEP) is the measure of choice to index sympathetic activity. Twin studies have demonstrated significant genetic contributions to resting levels of both RSA (heritability estimates range from 25 to 71 percent) and PEP (heritability estimates range from 48 to 74 percent) and the genetic variance in these traits seems to further increase under conditions of psychological stress. Identifying the genetic variants that influence parasympathetic and sympathetic activity may increase our understanding of the role of the ANS in cardiovascular disease.

Influence of the parasympathetic and sympathetic nervous system on nocturnal bronchial obstruction

1985 ◽  
Vol 69 (3) ◽  
pp. 251-258 ◽  
Author(s):  
D. S. Postma ◽  
J. J. Keyzer ◽  
G. H. Koëuter ◽  
H. J. Sluiter ◽  
K. De Vries
Keyword(s):  
Heart Rate ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Normal Subjects ◽  
Bronchial Obstruction ◽  
Vagal Activity ◽  
Sinus Arrhythmia ◽  
Autonomic Nervous ◽  
Urinary Levels ◽  
Normal Controls

1. To determine whether an autonomic nervous system imbalance might underlie the nocturnal dyspnoea in patients with chronic airflow obstruction (CAO), we determined FEV1, sinus arrhythmia gap (SA gap), heart rate and urinary adrenaline and noradrenaline excretion every 4 h over 24 h. Measurements were performed in eight non-allergic patients with CAO and eight age- and sex-matched normal controls. 2. The amplitude of the circadian changes in FEV1 in patients and controls was 27 ± 2% and 7 ± 1% respectively (P < 0.001). 3. Both an increased SA gap and a decreased heart rate are features of increased vagal activity. This vagal activity was significantly increased in patients, compared with normal controls (difference P < 0.01), the difference being maximal at night. This increased activity might contribute to a bronchial obstruction in these patients. 4. Urinary adrenaline excretion was significantly higher by day than by night in both patients and normal controls (P < 0.01). The urinary levels of adrenaline in the patients were significantly decreased at all hours of observation as compared with levels in normal controls (P < 0.05). 5. Urinary noradrenaline levels were significantly lower in patients as compared with normal subjects (P < 0.01), and lower by night than by day. 6. Urinary histamine and Nτ-methylhistamine excretion were in the normal range in each individual. Urinary levels, however, were significantly higher in patients at all hours of observation (P < 0.05). No circadian rhythm was shown. Plasma cortisol levels showed a normal circadian variation, similar in patients and normal subjects. 7. Bronchial constriction in patients with CAO may be explained by an autonomic nervous system imbalance. Arguments favouring this hypothesis were the findings that CAO patients, in contrast with normal controls, showed lower urinary adrenaline and noradrenaline excretion throughout with a fall at night, and a higher vagal tone with an increase at night. Moreover, a higher histamine and Nτ-methylhistamine excretion both day and night existed in the patient group. A combination of these factors may lead to the nocturnal dyspnoea in patients with CAO.

Electrophysiological Assessment of the Autonomic Nervous System in Male Patients with Acromegaly

2011 ◽  
Vol 66 (1) ◽  
pp. 1-5
Author(s):  
Oğuzhan Öz ◽  
Abdullah Taşlıpınar ◽  
Mehmet Yücel ◽  
Hakan Akgün ◽  
Ümit Hıdır Ulaş ◽  
...  
Keyword(s):  
Nervous System ◽  
Autonomic Nervous System ◽  
Autonomic Nervous ◽  
Male Patients

scholarly journals Variation of Autonomic Nervous System Function by Age and Gender in Thai Ischemic Stroke Patients

2021 ◽  
Vol 11 (3) ◽  
pp. 380
Author(s):  
Warawoot Chuangchai ◽  
Wiraporn Pothisiri ◽  
Phumdecha Chanbenjapipu
Keyword(s):  
Nervous System ◽  
Ischemic Stroke ◽  
Autonomic Nervous System ◽  
Elderly Patients ◽  
Parasympathetic Nervous System ◽  
Pulse Transit Time ◽  
Stroke Patients ◽  
Autonomic Nervous ◽  
Female Patients ◽  
Male Patients

Background: Ischemic stroke is one of the major causes of disability and mortality. Its effects on the autonomic nervous system (ANS) through nonlinear heart rate variability (HRV) and pulse transit time (PTT) have not been well explored among Thai patients. Objective: This study aims to demonstrate the association between ANS and ischemic stroke through nonlinear HRV and PTT. Methods: In total, 111 patients were enrolled in the study and their short-term HRV and PTT data were collected. Results: Parasympathetic tone was higher in elderly patients (≥60 years). The elderly patients had a higher SD1 but lower SD2 and SD2/SD1 than the younger patients, and a similar pattern was found in the female patients compared to the male patients. These findings were supported by the results of the Poincaré plots. Older and female patients had circular plots and approximately round plots, respectively. Moreover, the parasympathetic nervous system (PNS) response was moderate and positively associated with SD1 (r = 0.47, p < 0.001) and PTT (r = 0.29, p = 0.002), and negatively associated with SD2 and SD2/SD1 (r = −0.47, p < 0.001), after controlling for age and sex. Conclusions: The PNS response was predominant in older and female patients whereas the sympathetic response was lower than in the younger and male patients, which reflected certain characteristics of ANS response to ischemic stroke. Moreover, nonlinear parameters of SD1, SD2, SD2/SD1, and Poincaré plots including PTT are useful and recommended in investigating ANS, particularly in PNS, among ischemic stroke patients.

Distribution, Stability, and Continuity of Autonomic Nervous System Responsivity at 18- and 36-Months of Age

2020 ◽  
pp. 109980042094395
Author(s):  
Michelle Stephens ◽  
Nicole Bush ◽  
Sandra Weiss ◽  
Abbey Alkon
Keyword(s):  
Nervous System ◽  
Cohort Study ◽  
Autonomic Nervous System ◽  
Low Income ◽  
Ethnically Diverse ◽  
Developmental Changes ◽  
Sinus Arrhythmia ◽  
Cardiac Autonomic Nervous System ◽  
Autonomic Nervous ◽  
Low Income Children

Objective: Cardiac autonomic nervous system (ANS) measures, respiratory sinus arrhythmia (RSA) and preejection period (PEP), are valid and reliable indicators of children’s sensitivity to their environment; however, there are few studies of ANS measures in children less than three years of age. This study’s aim was to summarize the distributions, stability, and continuity of RSA and PEP measures during resting, challenge, and reactivity for children at 18- and 36-months. Methods: This was a cohort study of racially- and ethnically-diverse, low-income children who completed a developmentally challenging protocol while we simultaneously assessed their RSA and PEP at 18-months (N = 134) and 36-months (N = 102). Results: The ANS resting, challenge, and reactivity measures at 18- and 36-months of age were normally distributed. The RSA resting (r = 0.29), RSA challenge (r = 0.44), PEP resting (r = 0.55) and PEP challenge (r = 0.58) measures were moderately stable but RSA (r = 0.01) and PEP reactivity (r = 0.02) were not stable from 18- to 36-months of age. There was no continuity in the ANS measures from 18- to 36-months of age with statistically significant changes in sample means for all of the ANS measures. Discussion: These developmental changes in ANS are shown at the sample level but there are individual differences in ANS responses from 18- to 36-months that may be affected by adversity or protective factors experienced early in life.

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