Evidence map›Paper›PMID 32301979›Full record

ArticleEuropean heart journal. Cardiovascular Imaging2021

Impaired myocardial reserve underlies reduced exercise capacity and heart rate recovery in preterm-born young adults.

Odaro J Huckstep, Holger Burchert, Wilby Williamson, Fernando Telles, Cheryl M J Tan, Mariane Bertagnolli, Linda Arnold, Afifah Mohamed, Kenny McCormick, Henner Hanssen and 2 more

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in European heart journal. Cardiovascular Imaging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
4.5field-weighted citation impact, top 4% of its field
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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Physiological responses to exercise in survivors of preterm birth: a meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2025
    Pooled it
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  11. Dysanapsis as a Determinant of Lung Function in Development and Disease.American journal of respiratory and critical care medicine · 2023
    Article
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  17. Understanding the preterm human heart: What do we know so far?Anatomical record (Hoboken, N.J. : 2007) · 2022
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 5 countries.

Odaro J HuckstepOxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Headley Way, John Radcliffe Hospital, Oxford OX39DU, UK.
Holger BurchertOxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Headley Way, John Radcliffe Hospital, Oxford OX39DU, UK.
Wilby WilliamsonOxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Headley Way, John Radcliffe Hospital, Oxford OX39DU, UK.
Fernando TellesOxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Headley Way, John Radcliffe Hospital, Oxford OX39DU, UK.
Cheryl M J TanOxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Headley Way, John Radcliffe Hospital, Oxford OX39DU, UK.
Mariane BertagnolliOxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Headley Way, John Radcliffe Hospital, Oxford OX39DU, UK.
Linda ArnoldOxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Headley Way, John Radcliffe Hospital, Oxford OX39DU, UK.
Afifah MohamedOxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Headley Way, John Radcliffe Hospital, Oxford OX39DU, UK.
Kenny McCormickDepartment of Paediatrics, Headley Way, John Radcliffe Hospital, Oxford OX39DU, UK.
Henner HanssenDepartment of Sport, Exercise and Health, University of Basel, Birsstrasse 320B, Basel 4052, Switzerland.
Paul LeesonOxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Headley Way, John Radcliffe Hospital, Oxford OX39DU, UK.
Adam J LewandowskiOxford Cardiovascular Clinical Research Facility, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Headley Way, John Radcliffe Hospital, Oxford OX39DU, UK.
John Radcliffe Hospital · GBUniversity of Basel · CH

Funding

British Heart Foundation FS/18/3/33292British Heart Foundation PG/13/58/30397British Heart Foundation PG/17/13/32860
6 · The paper itself

Abstract

aimsWe tested the hypothesis that the known reduction in myocardial functional reserve in preterm-born young adults is an independent predictor of exercise capacity (peak VO2) and heart rate recovery (HRR). METHODS AND

resultsWe recruited 101 normotensive young adults (n = 47 born preterm; 32.8 ± 3.2 weeks' gestation and n = 54 term-born controls). Peak VO2 was determined by cardiopulmonary exercise testing (CPET), and lung function assessed using spirometry. Percentage predicted values were then calculated. HRR was defined as the decrease from peak HR to 1 min (HRR1) and 2 min of recovery (HRR2). Four-chamber echocardiography views were acquired at rest and exercise at 40% and 60% of CPET peak power. Change in left ventricular ejection fraction from rest to each work intensity was calculated (EFΔ40% and EFΔ60%) to estimate myocardial functional reserve. Peak VO2 and per cent of predicted peak VO2 were lower in preterm-born young adults compared with controls (33.6 ± 8.6 vs. 40.1 ± 9.0 mL/kg/min, P = 0.003 and 94% ± 20% vs. 108% ± 25%, P = 0.001). HRR1 was similar between groups. HRR2 decreased less in preterm-born young adults compared with controls (-36 ± 13 vs. -43 ± 11 b.p.m., P = 0.039). In young adults born preterm, but not in controls, EFΔ40% and EFΔ60% correlated with per cent of predicted peak VO2 (r2 = 0.430, P = 0.015 and r2 = 0.345, P = 0.021). Similarly, EFΔ60% correlated with HRR1 and HRR2 only in those born preterm (r2 = 0.611, P = 0.002 and r2 = 0.663, P = 0.001).

conclusionsImpaired myocardial functional reserve underlies reductions in peak VO2 and HRR in young adults born moderately preterm. Peak VO2 and HRR may aid risk stratification and treatment monitoring in this population.

Indexed as

Exercise ToleranceVentricular Function, LeftExercise TestHeart RateHumansInfant, NewbornStroke VolumeYoung Adultcardiac reserveechocardiographyexercise capacityheart rate recoveryprematuritypreterm birth

Identifiers

PMID32301979
PMCPMC8081423
OpenAlexW3016867716

What OpenQuestion holds

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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.