Multiparametric cardiovascular magnetic resonance is associated with outcomes in pediatric heart transplant recipients

ABSTRACT: Background: Multiparametric cardiovascular magnetic resonance (CMR) has an emerging role in non-invasive surveillance of pediatric heart transplant recipients (PHTR). Higher myocardial T2, higher extracellular volume fraction (ECV), and late gadolinium enhancement (LGE) have been associat...

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Main Authors: Andrew A. Lawson, Kae Watanabe, Lindsay Griffin, Christina Laternser, Michael Markl, Cynthia K. Rigsby, Joshua D. Robinson, Nazia Husain
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Journal of Cardiovascular Magnetic Resonance
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Online Access:http://www.sciencedirect.com/science/article/pii/S1097664724011657
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author Andrew A. Lawson
Kae Watanabe
Lindsay Griffin
Christina Laternser
Michael Markl
Cynthia K. Rigsby
Joshua D. Robinson
Nazia Husain
author_facet Andrew A. Lawson
Kae Watanabe
Lindsay Griffin
Christina Laternser
Michael Markl
Cynthia K. Rigsby
Joshua D. Robinson
Nazia Husain
author_sort Andrew A. Lawson
collection DOAJ
description ABSTRACT: Background: Multiparametric cardiovascular magnetic resonance (CMR) has an emerging role in non-invasive surveillance of pediatric heart transplant recipients (PHTR). Higher myocardial T2, higher extracellular volume fraction (ECV), and late gadolinium enhancement (LGE) have been associated with adverse clinical outcomes in adult heart transplant recipients. The purpose of this study was to investigate the prognostic value of CMR-derived T1 and T2 mapping, ECV, and LGE for clinical outcomes in PHTR. Methods: We performed a single-center, retrospective chart review of consecutive, gadolinium-enhanced CMR studies in PHTR over a 7.5-year period, excluding follow-up studies. Standard CMR ventricular volume and function analysis, T1 mapping with ECV, T2 mapping, and LGE assessment were performed. The composite outcome included cardiac death, non-cardiac death, re-transplantation, and cardiac hospitalization. Results: Among 113 PHTR, mean age was 13.0 ± 5.1 years, with 6.0 ± 4.0 years since transplant. The indication for CMR was surveillance in 79%. Mean native T1 was 1050 ± 48 ms, T2 49.2 ± 3.9 ms, and ECV 29.7 ± 4.5%. Left ventricular LGE was present in 37% (42/113) and right ventricular LGE in 3.5% (4/113). The mean follow-up time was 2.3 years and median was 1.4 years. Cardiac death occurred in 2% (2/113), re-transplantation in 4% (4/113), and cardiac hospitalization in 22% (25/113). Non-cardiac death did not occur. Using Kaplan-Meier analysis, high T1 (≥1061 ms), T2 (≥50.0 ms), and ECV (≥31.4%) were each associated with decreased freedom from the composite outcome in follow-up. In univariable Cox regression analyses, high T1 was associated with increased risk of the composite outcome (hazard ratios [HR] 4.0, 95% confidence interval [CI] 1.7–9.2, p = 0.001), as were high T2 (HR 2.8, 95% CI 1.1–7.1, p = 0.026), and high ECV (HR 3.5, 95% CI 1.5–8.1, p = 0.004). Conclusion: T1 and T2 mapping are associated with early differences in adverse cardiac events in PHTR. These data suggest a role for a multicenter study with a longer follow-up duration.
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spelling doaj-art-3a1133c39a4e428f8bbe657481e976942025-08-20T02:08:46ZengElsevierJournal of Cardiovascular Magnetic Resonance1097-66472025-01-0127110113810.1016/j.jocmr.2024.101138Multiparametric cardiovascular magnetic resonance is associated with outcomes in pediatric heart transplant recipientsAndrew A. Lawson0Kae Watanabe1Lindsay Griffin2Christina Laternser3Michael Markl4Cynthia K. Rigsby5Joshua D. Robinson6Nazia Husain7Division of Cardiology, Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA; Corresponding author.Division of Cardiology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USADepartment of Radiology, Connecticut Children’s Medical Center, Hartford, Connecticut, USACenter for Cardiovascular Innovation, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois, USADepartment of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USADepartment of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA; Department of Medical Imaging, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois, USADivision of Cardiology, Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA; Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA; Department of Medical Imaging, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois, USADivision of Cardiology, Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USAABSTRACT: Background: Multiparametric cardiovascular magnetic resonance (CMR) has an emerging role in non-invasive surveillance of pediatric heart transplant recipients (PHTR). Higher myocardial T2, higher extracellular volume fraction (ECV), and late gadolinium enhancement (LGE) have been associated with adverse clinical outcomes in adult heart transplant recipients. The purpose of this study was to investigate the prognostic value of CMR-derived T1 and T2 mapping, ECV, and LGE for clinical outcomes in PHTR. Methods: We performed a single-center, retrospective chart review of consecutive, gadolinium-enhanced CMR studies in PHTR over a 7.5-year period, excluding follow-up studies. Standard CMR ventricular volume and function analysis, T1 mapping with ECV, T2 mapping, and LGE assessment were performed. The composite outcome included cardiac death, non-cardiac death, re-transplantation, and cardiac hospitalization. Results: Among 113 PHTR, mean age was 13.0 ± 5.1 years, with 6.0 ± 4.0 years since transplant. The indication for CMR was surveillance in 79%. Mean native T1 was 1050 ± 48 ms, T2 49.2 ± 3.9 ms, and ECV 29.7 ± 4.5%. Left ventricular LGE was present in 37% (42/113) and right ventricular LGE in 3.5% (4/113). The mean follow-up time was 2.3 years and median was 1.4 years. Cardiac death occurred in 2% (2/113), re-transplantation in 4% (4/113), and cardiac hospitalization in 22% (25/113). Non-cardiac death did not occur. Using Kaplan-Meier analysis, high T1 (≥1061 ms), T2 (≥50.0 ms), and ECV (≥31.4%) were each associated with decreased freedom from the composite outcome in follow-up. In univariable Cox regression analyses, high T1 was associated with increased risk of the composite outcome (hazard ratios [HR] 4.0, 95% confidence interval [CI] 1.7–9.2, p = 0.001), as were high T2 (HR 2.8, 95% CI 1.1–7.1, p = 0.026), and high ECV (HR 3.5, 95% CI 1.5–8.1, p = 0.004). Conclusion: T1 and T2 mapping are associated with early differences in adverse cardiac events in PHTR. These data suggest a role for a multicenter study with a longer follow-up duration.http://www.sciencedirect.com/science/article/pii/S1097664724011657Pediatric heart transplantT1 mappingT2 mappingExtracellular volume fractionLate gadolinium enhancementGraft surveillance
spellingShingle Andrew A. Lawson
Kae Watanabe
Lindsay Griffin
Christina Laternser
Michael Markl
Cynthia K. Rigsby
Joshua D. Robinson
Nazia Husain
Multiparametric cardiovascular magnetic resonance is associated with outcomes in pediatric heart transplant recipients
Journal of Cardiovascular Magnetic Resonance
Pediatric heart transplant
T1 mapping
T2 mapping
Extracellular volume fraction
Late gadolinium enhancement
Graft surveillance
title Multiparametric cardiovascular magnetic resonance is associated with outcomes in pediatric heart transplant recipients
title_full Multiparametric cardiovascular magnetic resonance is associated with outcomes in pediatric heart transplant recipients
title_fullStr Multiparametric cardiovascular magnetic resonance is associated with outcomes in pediatric heart transplant recipients
title_full_unstemmed Multiparametric cardiovascular magnetic resonance is associated with outcomes in pediatric heart transplant recipients
title_short Multiparametric cardiovascular magnetic resonance is associated with outcomes in pediatric heart transplant recipients
title_sort multiparametric cardiovascular magnetic resonance is associated with outcomes in pediatric heart transplant recipients
topic Pediatric heart transplant
T1 mapping
T2 mapping
Extracellular volume fraction
Late gadolinium enhancement
Graft surveillance
url http://www.sciencedirect.com/science/article/pii/S1097664724011657
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