Adverse fibrosis remodeling and aortopulmonary collateral flow are associated with poor Fontan outcomes

Abstract Background The extent and significance in of cardiac remodeling in Fontan patients are unclear and were the subject of this study. Methods This retrospective cohort study compared cardiovascular magnetic resonance (CMR) imaging markers of cardiac function, myocardial fibrosis, and hemodynam...

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Autores principales: Andrea Pisesky, Marjolein J. E. Reichert, Charlotte de Lange, Mike Seed, Shi-Joon Yoo, Christopher Z. Lam, Lars Grosse-Wortmann
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Publicado: BMC 2021
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spelling oai:doaj.org-article:16d91b3be4354ae3afbfbc9671c577392021-11-21T12:09:00ZAdverse fibrosis remodeling and aortopulmonary collateral flow are associated with poor Fontan outcomes10.1186/s12968-021-00782-91532-429Xhttps://doaj.org/article/16d91b3be4354ae3afbfbc9671c577392021-11-01T00:00:00Zhttps://doi.org/10.1186/s12968-021-00782-9https://doaj.org/toc/1532-429XAbstract Background The extent and significance in of cardiac remodeling in Fontan patients are unclear and were the subject of this study. Methods This retrospective cohort study compared cardiovascular magnetic resonance (CMR) imaging markers of cardiac function, myocardial fibrosis, and hemodynamics in young Fontan patients to controls. Results Fifty-five Fontan patients and 44 healthy controls were included (median age 14 years (range 7–17 years) vs 13 years (range 4–14 years), p = 0.057). Fontan patients had a higher indexed end-diastolic ventricular volume (EDVI 129 ml/m2 vs 93 ml/m2, p < 0.001), and lower ejection fraction (EF 45% vs 58%, p < 0.001), circumferential (CS − 23.5% vs − 30.8%, p < 0.001), radial (6.4% vs 8.2%, p < 0.001), and longitudinal strain (− 13.3% vs − 24.8%, p < 0.001). Compared to healthy controls, Fontan patients had higher extracellular volume fraction (ECV) (26.3% vs 20.6%, p < 0.001) and native T1 (1041 ms vs 986 ms, p < 0.001). Patients with a dominant right ventricle demonstrated larger ventricles (EDVI 146 ml/m2 vs 120 ml/m2, p = 0.03), lower EF (41% vs 47%, p = 0.008), worse CS (− 20.1% vs − 25.6%, p = 0.003), and a trend towards higher ECV (28.3% versus 24.1%, p = 0.09). Worse EF and CS correlated with longer cumulative bypass (R = − 0.36, p = 0.003 and R = 0.46, p < 0.001), cross-clamp (R = − 0.41, p = 0.001 and R = 0.40, p = 0.003) and circulatory arrest times (R = − 0.42, p < 0.001 and R = 0.27, p = 0.03). T1 correlated with aortopulmonary collateral (APC) flow (R = 0.36, p = 0.009) which, in the linear regression model, was independent of ventricular morphology (p = 0.9) and EDVI (p = 0.2). The composite outcome (cardiac readmission, cardiac reintervention, Fontan failure or any clinically significant arrhythmia) was associated with increased native T1 (1063 ms vs 1026 ms, p = 0.029) and EDVI (146 ml/m2 vs 118 ml/m2, p = 0.013), as well as decreased EF (42% vs 46%, p = 0.045) and worse CS (− 22% vs − 25%, p = 0.029). APC flow (HR 5.5 CI 1.9–16.2, p = 0.002) was independently associated with the composite outcome, independent of ventricular morphology (HR 0.71 CI 0.30–1.69 p = 0.44) and T1 (HR1.006 CI 1.0–1.13, p = 0.07). Conclusions Pediatric Fontan patients have ventricular dysfunction, altered myocardial mechanics and increased fibrotic remodeling. Cumulative exposure to cardiopulmonary bypass and increased aortopulmonary collateral flow are associated with myocardial dysfunction and fibrosis. Cardiac dysfunction, fibrosis, and collateral flow are associated with adverse outcomes.Andrea PiseskyMarjolein J. E. ReichertCharlotte de LangeMike SeedShi-Joon YooChristopher Z. LamLars Grosse-WortmannBMCarticleCongenital heart diseaseFontanHeart failureFibrosisMagnetic resonance imagingDiseases of the circulatory (Cardiovascular) systemRC666-701ENJournal of Cardiovascular Magnetic Resonance, Vol 23, Iss 1, Pp 1-11 (2021)
institution DOAJ
collection DOAJ
language EN
topic Congenital heart disease
Fontan
Heart failure
Fibrosis
Magnetic resonance imaging
Diseases of the circulatory (Cardiovascular) system
RC666-701
spellingShingle Congenital heart disease
Fontan
Heart failure
Fibrosis
Magnetic resonance imaging
Diseases of the circulatory (Cardiovascular) system
RC666-701
Andrea Pisesky
Marjolein J. E. Reichert
Charlotte de Lange
Mike Seed
Shi-Joon Yoo
Christopher Z. Lam
Lars Grosse-Wortmann
Adverse fibrosis remodeling and aortopulmonary collateral flow are associated with poor Fontan outcomes
description Abstract Background The extent and significance in of cardiac remodeling in Fontan patients are unclear and were the subject of this study. Methods This retrospective cohort study compared cardiovascular magnetic resonance (CMR) imaging markers of cardiac function, myocardial fibrosis, and hemodynamics in young Fontan patients to controls. Results Fifty-five Fontan patients and 44 healthy controls were included (median age 14 years (range 7–17 years) vs 13 years (range 4–14 years), p = 0.057). Fontan patients had a higher indexed end-diastolic ventricular volume (EDVI 129 ml/m2 vs 93 ml/m2, p < 0.001), and lower ejection fraction (EF 45% vs 58%, p < 0.001), circumferential (CS − 23.5% vs − 30.8%, p < 0.001), radial (6.4% vs 8.2%, p < 0.001), and longitudinal strain (− 13.3% vs − 24.8%, p < 0.001). Compared to healthy controls, Fontan patients had higher extracellular volume fraction (ECV) (26.3% vs 20.6%, p < 0.001) and native T1 (1041 ms vs 986 ms, p < 0.001). Patients with a dominant right ventricle demonstrated larger ventricles (EDVI 146 ml/m2 vs 120 ml/m2, p = 0.03), lower EF (41% vs 47%, p = 0.008), worse CS (− 20.1% vs − 25.6%, p = 0.003), and a trend towards higher ECV (28.3% versus 24.1%, p = 0.09). Worse EF and CS correlated with longer cumulative bypass (R = − 0.36, p = 0.003 and R = 0.46, p < 0.001), cross-clamp (R = − 0.41, p = 0.001 and R = 0.40, p = 0.003) and circulatory arrest times (R = − 0.42, p < 0.001 and R = 0.27, p = 0.03). T1 correlated with aortopulmonary collateral (APC) flow (R = 0.36, p = 0.009) which, in the linear regression model, was independent of ventricular morphology (p = 0.9) and EDVI (p = 0.2). The composite outcome (cardiac readmission, cardiac reintervention, Fontan failure or any clinically significant arrhythmia) was associated with increased native T1 (1063 ms vs 1026 ms, p = 0.029) and EDVI (146 ml/m2 vs 118 ml/m2, p = 0.013), as well as decreased EF (42% vs 46%, p = 0.045) and worse CS (− 22% vs − 25%, p = 0.029). APC flow (HR 5.5 CI 1.9–16.2, p = 0.002) was independently associated with the composite outcome, independent of ventricular morphology (HR 0.71 CI 0.30–1.69 p = 0.44) and T1 (HR1.006 CI 1.0–1.13, p = 0.07). Conclusions Pediatric Fontan patients have ventricular dysfunction, altered myocardial mechanics and increased fibrotic remodeling. Cumulative exposure to cardiopulmonary bypass and increased aortopulmonary collateral flow are associated with myocardial dysfunction and fibrosis. Cardiac dysfunction, fibrosis, and collateral flow are associated with adverse outcomes.
format article
author Andrea Pisesky
Marjolein J. E. Reichert
Charlotte de Lange
Mike Seed
Shi-Joon Yoo
Christopher Z. Lam
Lars Grosse-Wortmann
author_facet Andrea Pisesky
Marjolein J. E. Reichert
Charlotte de Lange
Mike Seed
Shi-Joon Yoo
Christopher Z. Lam
Lars Grosse-Wortmann
author_sort Andrea Pisesky
title Adverse fibrosis remodeling and aortopulmonary collateral flow are associated with poor Fontan outcomes
title_short Adverse fibrosis remodeling and aortopulmonary collateral flow are associated with poor Fontan outcomes
title_full Adverse fibrosis remodeling and aortopulmonary collateral flow are associated with poor Fontan outcomes
title_fullStr Adverse fibrosis remodeling and aortopulmonary collateral flow are associated with poor Fontan outcomes
title_full_unstemmed Adverse fibrosis remodeling and aortopulmonary collateral flow are associated with poor Fontan outcomes
title_sort adverse fibrosis remodeling and aortopulmonary collateral flow are associated with poor fontan outcomes
publisher BMC
publishDate 2021
url https://doaj.org/article/16d91b3be4354ae3afbfbc9671c57739
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