Premature cardiac beats in children with structurally normal heart: autonomic dysregulation.

Pediatr Int

Department of Pediatric Cardiology, Yıldırım Beyazıt University, Faculty of Medicine Ankara City Hospital, Ankara, Turkey.

Published: December 2021

Background: Premature ventricular contractions and supraventricular contractions are common rhythm disorders requiring comprehensive investigation in children. The aim of the study was to evaluate the heart rate variability (HRV) in premature ventricular contractions (PVCs) and supraventricular contractions (PSVCs) in children.

Methods: The study compared the characteristics of HRV in 175 children with PVCs and 160 children with PSVCs who underwent 24-h Holter monitoring, with 101 healthy children.

Results: Significant differences were found between standard deviation of all normal RR intervals (SDNN), standard deviation of average RR intervals in all 5 min segments of registration (SDANN), root mean square of the successive differences (rMSSD), and the proportion of NN50 divided by total number of NNs (pNN50) values of the patient and control groups. The PVCs group had a significantly lower high frequency (HF) and higher low frequency (LF)/HF ratio and the PSVCs group had a significantly higher LF and higher LF/HF ratio compared to the control group. No significant correlation existed between frequency and the SDNN index, rMSSD, and pNN50 values of the PVCs group. The receiver operating characteristics analysis showed a significantly changed LF/HF ratio when premature contractions exceeded 60 beats per hour in children with PVCs.

Conclusions: This study indicated an increased sympathetic tone and a significantly decreased vagal tone in children with PVCs and PSVCs. HRV can be used increasingly as a non-invasive method in the follow-up of children with premature cardiac contractions.

Download full-text PDF

Source
http://dx.doi.org/10.1111/ped.14893DOI Listing

Publication Analysis

Top Keywords

lf/hf ratio
12
premature cardiac
8
premature ventricular
8
ventricular contractions
8
supraventricular contractions
8
children pvcs
8
standard deviation
8
pnn50 values
8
pvcs group
8
children
7

Similar Publications

Heart rate variability parameters indicate altered autonomic tone in subjects with COVID-19.

Sci Rep

December 2024

Krannert Cardiovascular Research Center, Division of Cardiovascular Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.

COVID-19 is associated with long-term cardiovascular complications. Heart Rate Variability (HRV), a measure of sympathetic (SNS) and parasympathetic (PNS) control, has been shown to predict COVID-19 outcomes and correlate with disease progression but a comprehensive analysis that includes demographic influences has been lacking. The objective of this study was to determine the balance between SNS, PNS and heart rhythm regulation in hospitalized COVID-19 patients and compare it with similar measurements in healthy volunteers and individuals with cardiovascular diseases (CVD), while also investigating the effects of age, Body Mass Index (BMI), gender and race.

View Article and Find Full Text PDF

Effects of Auto-Titrating Mandibular Advancement Device on Autonomic Nervous System in Obstructive Sleep Apnea.

J Pers Med

December 2024

Department of Otorhinolaryngology-Head and Neck Surgery, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon 24252, Republic of Korea.

One prior study revealed that a newly developed auto-titrating mandibular advancement device (AMAD) could potentially enhance polysomnographic outcomes in individuals with obstructive sleep apnea (OSA). However, evidence regarding its impact on autonomic nervous system dysregulation in OSA remains limited. In this study, we aimed to compare the effects of conventional mandibular advancement devices (MADs) and AMDA on autonomic function.

View Article and Find Full Text PDF

Context: PCOS is one of the most neglected noncommunicable diseases, and early detection would be of great value to primary care physicians. Sympathovagal imbalance detected using heart rate variability (HRV) can be used to detect early autonomic changes if any.

Aim: The present study aimed to evaluate QTc and Poincare plot (nonlinear analysis of HRV) in young adolescent PCOS patients.

View Article and Find Full Text PDF

External trigeminal nerve stimulation (eTNS) Exhibits relaxation effects in fatigue states following napping deprivation.

Neuroscience

December 2024

Engineering Research Center of Molecular and Neuro Imaging of the Ministry of Education, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China; Intelligent Non-invasive Neuromodulation Technology and Transformation Joint Laboratory, Xidian University, Xi'an, Shaanxi 710126, China; Guangzhou Institute of Technology, Xidian University, Xi'an, Shaanxi, China. Electronic address:

Background: In the face of inevitable declines in alertness and fatigue resulting from sleep deprivation, effective countermeasures are essential for maintaining performance. External trigeminal nerve stimulation (eTNS) presents a potential avenue for regulating alertness by activating the locus coeruleus and reticular activating system.

Methods: Here, we conducted a within-subject study with 66 habitual nappers, subjecting them to afternoon nap-deprivation and applying either 20-minute of 120 Hz eTNS or sham stimulation.

View Article and Find Full Text PDF

Objectives: To observe the effect of electroacupuncture (EA) at "Zusanli" (ST36) on improving cardiac function in mice with chronic heart failure (CHF), so as to explore the mechanism of its regulation on the autonomic nervous system.

Methods: Eighteen C57BL/6J mice were randomly divided into sham-surgery, model, and EA groups, with 6 mice in each group. The model of myocardial ischemia followed by CHF was induced by ligation of the anterior descending branch of the left coronary artery.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!