Evidence map›Paper›PMID 30763323›Full record

Observational studyPloS one2019

The demanding grey zone: Sport indices by cardiac magnetic resonance imaging differentiate hypertrophic cardiomyopathy from athlete's heart.

Csilla Czimbalmos, Ibolya Csecs, Attila Toth, Orsolya Kiss, Ferenc Imre Suhai, Nora Sydo, Zsofia Dohy, Astrid Apor, Bela Merkely, Hajnalka Vago

Abstract readObservational Study
In one paragraph

Observational study in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 3 pooled it
–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

14 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Society for Cardiovascular Magnetic Resonance reference values ("normal values") in cardiovascular magnetic resonance: 2025 update.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2025
    Guideline
  3. Pooled it
  4. Article
  5. Review
  6. Cardiac myosin inhibitors: Efficacy, safety and future directions of aficamten in hypertrophic obstructive cardiomyopathy.The Egyptian heart journal : (EHJ) : official bulletin of the Egyptian Society of Cardiology · 2025
    Review
  7. Review
  8. Review
  9. New Era: Mavacamten for Obstructive Hypertrophic Cardiomyopathy.Cardiovascular & hematological agents in medicinal chemistry · 2023
    Review
  10. Certainties and Uncertainties of Cardiac Magnetic Resonance Imaging in Athletes.Journal of cardiovascular development and disease · 2022
    Review
  11. Article
  12. Article
  13. Review
  14. Article
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

10 authors.

Csilla CzimbalmosHeart and Vascular Center, Semmelweis University, Budapest, Hungary.
Ibolya CsecsHeart and Vascular Center, Semmelweis University, Budapest, Hungary.
Attila TothHeart and Vascular Center, Semmelweis University, Budapest, Hungary.
Orsolya KissHeart and Vascular Center, Semmelweis University, Budapest, Hungary.
Ferenc Imre SuhaiHeart and Vascular Center, Semmelweis University, Budapest, Hungary.
Nora SydoHeart and Vascular Center, Semmelweis University, Budapest, Hungary.
Zsofia DohyHeart and Vascular Center, Semmelweis University, Budapest, Hungary.
Astrid AporHeart and Vascular Center, Semmelweis University, Budapest, Hungary.
Bela MerkelyHeart and Vascular Center, Semmelweis University, Budapest, Hungary.
Hajnalka VagoHeart and Vascular Center, Semmelweis University, Budapest, Hungary.ORCID 0000-0002-3568-3572

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe aimed to characterize gender specific left ventricular hypertrophy using a novel, accurate and less time demanding cardiac magnetic resonance (CMR) quantification method to differentiate physiological hypertrophy and hypertrophic cardiomyopathy based on a large population of highly trained athletes and hypertrophic cardiomyopathy patients.

methodsElite athletes (n = 150,>18 training hours/week), HCM patients (n = 194) and athletes with hypertrophic cardiomyopathy (n = 10) were examined by CMR. CMR based sport indices such as maximal end-diastolic wall thickness to left ventricular end-diastolic volume index ratio (EDWT/LVEDVi) and left ventricular mass to left ventricular end-diastolic volume ratio (LVM/LVEDV) were calculated, established using both conventional and threshold-based quantification method.

resultsWhereas 47.5% of male athletes, only 4.1% of female athletes were in the grey zone of hypertrophy (EDWT 13-16mm). EDWT/LVEDVi discriminated between physiological and pathological left ventricular hypertrophy with excellent diagnostic accuracy (AUCCQ:0.998, AUCTQ:0.999). Cut-off value for LVM/LVEDVCQ<0.82 mm×m2/ml and for EDWT/LVEDViTQ<1.27 discriminated between physiological and pathological left ventricular hypertrophy with a sensitivity of 77.8% and 89.2%, a specificity of 86.7% and 91.3%, respectively. LVM/LVEDV evaluated using threshold-based quantification performed significantly better than conventional quantification even in the male subgroup with EDWT between 13-16mm (p<0.001).

conclusionsAlmost 50% of male highly trained athletes can reach EDWT of 13 mm. CMR based sport indices provide an important tool to distinguish hypertrophic cardiomyopathy from athlete's heart, especially in highly trained athletes in the grey zone of hypertrophy.

Indexed as

AthletesCardiomegalyCardiomegaly, Exercise-InducedCardiomyopathy, HypertrophicFemaleHeart VentriclesHumansHypertrophy, Left VentricularMagnetic Resonance ImagingMaleMiddle AgedProspective StudiesSports

Identifiers

PMID30763323
PMCPMC6375568

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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.