Evidence map›Paper›PMID 39080463›Full record

ArticlePediatric research2025

Heart rate variability and cognitive functions in adolescents with complex congenital heart disease.

Asuka Toyofuku, Melanie Ehrler, Nadja Naef, Alenka S Schmid, Oliver Kretschmar, Beatrice Latal, Ruth O'Gorman Tuura

Abstract read
In one paragraph

Article in Pediatric research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

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3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Trial
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  3. Effects of Maternal Heartbeat Exposure on Neonatal Autonomic Regulation.Pathophysiology : the official journal of the International Society for Pathophysiology · 2026
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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

7 authors.

Asuka ToyofukuChild Development Center, University Children's Hospital Zurich, Zürich, Switzerland.
Melanie EhrlerChild Development Center, University Children's Hospital Zurich, Zürich, Switzerland.
Nadja NaefChild Development Center, University Children's Hospital Zurich, Zürich, Switzerland.
Alenka S SchmidChild Development Center, University Children's Hospital Zurich, Zürich, Switzerland.
Oliver KretschmarChildren's Research Centre, University Children's Hospital Zurich, Zürich, Switzerland.
Beatrice LatalChild Development Center, University Children's Hospital Zurich, Zürich, Switzerland.
Ruth O'Gorman TuuraChildren's Research Centre, University Children's Hospital Zurich, Zürich, Switzerland. ruth.tuura@kispi.uzh.ch.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHeart Rate Variability (HRV) originates from the interplay between parasympathetic/sympathetic inputs to the heart, thus serving as an indicator of Autonomic Nervous System regulation. Prior research indicates that decreased HRV, marked by reduced autonomic balance, is related to poorer cognitive performance. While the population with congenital heart disease (CHD) show changes in HRV linked with the heart defect, the association between HRV and cognitive functions in CHD remains unexplored.

methods46 adolescents with CHD who went through infant open-heart surgery and 64 healthy controls (50.9% males, 12.8 ± 1.4 years) underwent neurodevelopmental testing and photoplethysmograph acquisition. Group differences and associations with cognitive functions were analysed with linear regression. P values were FDR-corrected.

resultsAdolescents with CHD showed lower HRV (quantified by high-frequency power) compared to controls (p < 0.001). Lower HRV was correlated with worse executive function (β = 0.24, p = 0.044) and lower IQ (β = 0.26, p = 0.010) in the whole sample and with lower IQ (β = 0.35, p = 0.014) in the CHD group. These associations were robust to confounders, including age, sex, and socioeconomic status.

conclusionOur findings demonstrate an association between HRV and cognitive functions in adolescents with complex CHD. Early detection of alterations in HRV/autonomic regulation may help to identify children with CHD at risk for cognitive impairments. IMPACT: Adolescents with congenital heart disease (CHD) showed lower heart rate variability (HRV), indicating an imbalanced autonomic nervous system. Lower HRV was associated with lower IQ and executive function (EF) in the whole sample. The association between HRV and IQ was significantly stronger in CHD than in healthy controls. This study provides the first evidence of a link between altered HRV and cognitive impairments in the CHD population. Neurodevelopmental impairments seen in adolescents with CHD could be linked to their altered cardiac autonomic nervous activity, marked by low HRV.

Indexed as

CognitionHeart Defects, CongenitalHeart RateAdolescentAutonomic Nervous SystemCase-Control StudiesChildExecutive FunctionFemaleHumansIntelligenceMale

Identifiers

PMID39080463
PMCPMC12055568

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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.