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Related Concept Videos

Pulse rhythm01:30

Pulse rhythm

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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
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Holter Monitor: 24-Hour Monitoring01:23

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Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
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Regulation of Heart Rates01:31

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Correlation between ECG and Cardiac Cycle01:25

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The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
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Dysrhythmias V: Evaluating Dysrhythmias01:30

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Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
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Updated: Mar 3, 2026

Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions
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Heart Rate Variability in Congenital Heart Disease and Controls Using Wearable Technology and a Health Application

Charlotte Schöneburg1, Isabel Uphoff2, Renate Oberhoffer-Fritz1,2

  • 1Institute of Preventive Pediatrics, TUM School of Medicine and Health, Technische Universität München, München, Germany.

CJC Pediatric and Congenital Heart Disease
|March 2, 2026
PubMed
Summary
This summary is machine-generated.

Adults with congenital heart disease (CHD) have lower heart rate variability (HRV), particularly during nighttime recovery. Wearable devices and health APIs can aid in monitoring autonomic function and personalizing care for chronic conditions.

Keywords:
congenital heart diseasehealth application programming interfaceheart rate variabilitytelemedicine

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Area of Science:

  • Cardiology
  • Autonomic Nervous System Research
  • Digital Health

Background:

  • Focus on long-term morbidity in adults with congenital heart disease (CHD) due to increased survival rates.
  • Chronic conditions in CHD patients impose cardiac and psychological burdens impacting autonomic function.
  • Heart rate variability (HRV) is a key indicator of autonomic nervous system activity.

Purpose of the Study:

  • To compare HRV levels between adults with CHD and healthy controls.
  • To investigate the impact of CHD on autonomic function, specifically HRV.
  • To assess the utility of wearable technology for physiological monitoring in CHD patients.

Main Methods:

  • A wearable-based physiological assessment was conducted over 7 days using Garmin vivosmart 5 devices.
  • 124 adults with CHD and 43 controls participated in the study.
  • Heart rate variability (HRV) was continuously recorded, and the root mean square of successive differences (rMSSD) was calculated for day and nighttime.

Main Results:

  • Adults with CHD exhibited significantly lower overall HRV (rMSSD) compared to controls.
  • The reduction in HRV for CHD patients was primarily driven by decreased nighttime HRV.
  • Controls showed a greater increase in HRV from day to night, indicating better autonomic recovery.
  • VO2 peak positively correlated with daytime and overall HRV in CHD patients.

Conclusions:

  • Adults with CHD demonstrate diminished overall and nighttime HRV compared to controls.
  • Nighttime HRV is crucial for assessing recovery, sleep quality, and overall health in CHD.
  • Continuous monitoring through health APIs offers potential for reliable chronic disease assessment and personalized care.