ArticleJournal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance2023
Late-gadolinium enhancement is common in older pediatric heart transplant recipients and is associated with lower ejection fraction.
Article in Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 4 citations in OpenAlex.
- Cardiac magnetic resonance in heart transplant recipients: histological, clinical and cell-free DNA validation.European heart journal. Cardiovascular Imaging · 2025Trial
- Non-invasive detection of acute cell-mediated graft rejection in paediatric heart transplant recipients: The role of cardiovascular magnetic resonance.International journal of cardiology. Congenital heart disease · 2026Article
- Advanced Cardiac Imaging Techniques for Detection of Myocardial Ischemia in Children with Coronary Artery Abnormalities.Cardiology and therapy · 2026Review
- Prognostic value of early cardiac magnetic resonance first-pass perfusion assessment of microcirculatory dysfunction for acute rejection after heart transplantation.Cardiovascular diagnosis and therapy · 2026Article
- Multimodal Cardiac Imaging of Immune-Mediated Complications Post Heart Transplantation: A Contemporary Review.Journal of the American Heart Association · 2026Review
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundChronic graft failure and cumulative rejection history in pediatric heart transplant recipients (PHTR) are associated with myocardial fibrosis on endomyocardial biopsy (EMB). Cardiovascular magnetic resonance imaging (CMR) is a validated, non-invasive method to detect myocardial fibrosis via the presence of late gadolinium enhancement (LGE). In adult heart transplant recipients, LGE is associated with increased risk of future adverse clinical events including hospitalization and death. We describe the prevalence, pattern, and extent of LGE on CMR in a cohort of PHTR and its associations with recipient and graft characteristics.
methodsThis was a retrospective study of consecutive PHTR who underwent CMR over a 6-year period at a single center. Two independent reviewers assessed the presence and distribution of left ventricular (LV) LGE using the American Heart Association (AHA) 17-segment model. LGE quantification was performed on studies with visible fibrosis (LGE+). Patient demographics, clinical history, and CMR-derived volumetry and ejection fractions were obtained.
resultsEighty-one CMR studies were performed on 59 unique PHTR. Mean age at CMR was 14.8 ± 6.2 years; mean time since transplant was 7.3 ± 5.0 years. The CMR indication was routine surveillance (without a clinical concern based on laboratory parameters, echocardiography, or cardiac catheterization) in 63% (51/81) of studies. LGE was present in 36% (29/81) of PHTR. In these LGE + studies, patterns included inferoseptal in 76% of LGE + studies (22/29), lateral wall in 41% (12/29), and diffuse, involving > 4 AHA segments, in 21% (6/29). The mean LV LGE burden as a percentage of myocardial mass was 18.0 ± 9.0%. When reviewing only the initial CMR per PHTR (n = 59), LGE + patients were older (16.7 ± 2.9 vs. 12.8 ± 4.6 years, p = 0.001), with greater time since transplant (8.3 ± 5.4 vs. 5.7 ± 3.9 years, p = 0.041). These patients demonstrated higher LV end-systolic volume index (LVESVI) (34.7 ± 11.7 vs. 28.7 ± 6.1 ml/m
conclusionsLV LGE was present in approximately one third of PHTR, more commonly in older patients with longer time since transplantation. Grafts with LGE have lower LVEF. CMR-derived LGE may aid in surveillance of chronic graft failure in PHTR.
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