Evidence map›Paper›PMID 41767026›Full record

ArticleCJC pediatric and congenital heart disease2026

Heart Rate Variability in Congenital Heart Disease and Controls Using Wearable Technology and a Health Application Programming Interface-A Cross-sectional Study.

Charlotte Schöneburg, Isabel Uphoff, Renate Oberhoffer-Fritz, Peter Ewert, Jan Müller

Abstract read
In one paragraph

Article in CJC pediatric and congenital heart disease, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Charlotte SchöneburgInstitute of Preventive Pediatrics, TUM School of Medicine and Health, Technische Universität München, München, Germany.
Isabel UphoffDepartment of Congenital Heart Disease and Pediatric Cardiology, Deutsches Herzzentrum München, Klinikum der Technischen Universität München, München, Germany.
Renate Oberhoffer-FritzInstitute of Preventive Pediatrics, TUM School of Medicine and Health, Technische Universität München, München, Germany.
Peter EwertDepartment of Congenital Heart Disease and Pediatric Cardiology, Deutsches Herzzentrum München, Klinikum der Technischen Universität München, München, Germany.
Jan MüllerInstitute of Preventive Pediatrics, TUM School of Medicine and Health, Technische Universität München, München, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: With 95% of patients with congenital heart disease (CHD) reaching adulthood, the focus has shifted from early mortality to long-term morbidity. Chronic health conditions are associated with increased cardiac and psychological burdens, which could influence autonomic function. This study compares heart rate variability (HRV) levels between adults with CHD and controls. Methods: Between September 2023 and February 2024, 124 adults with CHD (33.7 ± 10.5 years, 47.6% women) and 43 controls (34.3 ± 12.0 years, 44.2% women) participated in a wearable-based physiological assessment. HRV was continuously recorded using Garmin vivosmart 5 for 7 days, with data synchronized via a health application programming interface. The root mean square of successive differences (rMSSD) was calculated for day and nighttime based on individual sleep and waking schedules. Results: Patients with CHD exhibited lower overall rMSSD than controls (CHD: 39.9 [33.6; 48.1] vs controls: 47.0 [39.9; 53.3]; Conclusions: Patients with CHD appear to have lower overall HRV, driven by decreased nighttime HRV compared with controls. Nighttime HRV is key for understanding recovery, sleep quality, and health. Continuous monitoring via health application programming interfaces could support reliable chronic health assessment and personalized care strategies.

Indexed as

congenital heart diseasehealth application programming interfaceheart rate variabilitytelemedicine

Identifiers

PMID41767026
PMCPMC12946916

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LicenceCC BY-NC-ND
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.