Evidence mapPaperPMID 41843013Full record

ArticlePediatric cardiology2026

Diastolic Function Unchanged After Lifestyle Intervention Despite Improved VO

Andrew Brennan, Christopher Mardy, Rajesh Punn, Seda Tierney

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Article in Pediatric cardiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Andrew BrennanDivision of Pediatric Cardiology, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA. ambrenn@stanford.edu.ORCID http://orcid.org/0009-0004-8275-8348
Christopher MardyDivision of Pediatric Cardiology, Department of Pediatrics, University of Texas at Austin Dell Medical School, Austin, TX, USA.
Rajesh PunnDivision of Pediatric Cardiology, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA.
Seda TierneyDivision of Pediatric Cardiology, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pediatric heart transplant recipients commonly exhibit diastolic dysfunction, which may contribute to reduced exercise capacity. In our Healthy Hearts study, a supervised exercise and nutrition intervention improved exercise performance and endothelial function. We hypothesized that this intervention would also improve resting echocardiographic markers of diastolic function in this cohort. Fourteen stable heart transplant patients aged 8 to 19 years, at least one year post-transplant, participated in a live-video-supervised exercise and nutrition intervention from 2014 to 2018. Participants completed a 12-16-week intervention, followed by a maintenance phase of similar duration with mostly self-directed sessions. Echocardiograms taken near baseline, post-intervention, and post-maintenance visits were reviewed retrospectively. Diastolic dysfunction at baseline was defined by any of the following: E/A ratio > 2, mitral deceleration time < 160 ms, septal or lateral E/e' > 14, or tricuspid regurgitant jet velocity > 2.8 m/s. Atrial strain was measured using TOMTEC software. No significant improvements from baseline to post-intervention were observed in conventional diastolic function parameters or atrial strain, including patients with baseline diastolic dysfunction (n = 9). Among those with baseline diastolic dysfunction, there was a strong inverse correlation between the change in E/A ratio and the change in peak VO

Indexed as

Atrial strainDiastolic functionEchocardiogramExerciseHeart transplant

Identifiers

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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 Socratic graph.