Small Vessel Disease: Another Component of the Hypertrophic Cardiomyopathy Phenotype Not Necessarily Associated with Fibrosis
Background: Hypertrophic cardiomyopathy (HCM) is characterized by myocardial disarray, small vessel disease (SVD), and fibrosis. The relationship between SVD and replacement-type fibrosis is still unclear. Methods: Histopathologic assessment of replacement-type fibrosis and SVD in HCM patients with...
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doaj-9946e7687c2a4667b701f3d98be4bd1f2021-02-05T00:01:04ZengMDPI AGJournal of Clinical Medicine2077-03832021-02-011057557510.3390/jcm10040575Small Vessel Disease: Another Component of the Hypertrophic Cardiomyopathy Phenotype Not Necessarily Associated with FibrosisMonica De Gaspari0Cristina Basso1Martina Perazzolo Marra2Stefania Elia3Maria Bueno Marinas4Annalisa Angelini5Gaetano Thiene6Stefania Rizzo7Cardiovascular Pathology Unit and Cardiology Unit, Azienda Ospedaliera, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua Medical School, Via A. Gabelli, 61, 35121 Padova, ItalyCardiovascular Pathology Unit and Cardiology Unit, Azienda Ospedaliera, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua Medical School, Via A. Gabelli, 61, 35121 Padova, ItalyCardiovascular Pathology Unit and Cardiology Unit, Azienda Ospedaliera, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua Medical School, Via A. Gabelli, 61, 35121 Padova, ItalyCardiovascular Pathology Unit and Cardiology Unit, Azienda Ospedaliera, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua Medical School, Via A. Gabelli, 61, 35121 Padova, ItalyCardiovascular Pathology Unit and Cardiology Unit, Azienda Ospedaliera, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua Medical School, Via A. Gabelli, 61, 35121 Padova, ItalyCardiovascular Pathology Unit and Cardiology Unit, Azienda Ospedaliera, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua Medical School, Via A. Gabelli, 61, 35121 Padova, ItalyCardiovascular Pathology Unit and Cardiology Unit, Azienda Ospedaliera, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua Medical School, Via A. Gabelli, 61, 35121 Padova, ItalyCardiovascular Pathology Unit and Cardiology Unit, Azienda Ospedaliera, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua Medical School, Via A. Gabelli, 61, 35121 Padova, ItalyBackground: Hypertrophic cardiomyopathy (HCM) is characterized by myocardial disarray, small vessel disease (SVD), and fibrosis. The relationship between SVD and replacement-type fibrosis is still unclear. Methods: Histopathologic assessment of replacement-type fibrosis and SVD in HCM patients with either end-stage heart failure (HF) or sudden cardiac death (SCD). Chronic ischemic heart disease (IHD) patients served as controls. Results: Forty HCM hearts, 10 HF and 30 SCD, were studied. Replacement-type fibrosis was detected in all HF and in 57% of SCD cases. In SCD, replacement-type fibrosis was associated with older age, greater septal thickness, SVD prevalence, and score (all <i>p</i> < 0.05). Prevalence of SVD did not show significant differences among SCD, HF, and IHD (73%, 100% and 95%, respectively), while SVD score was higher in HF than IHD and SCD (2.4, 1.95, and 1.18, respectively) and in areas with replacement-type fibrosis vs. those without in HF (3.4 vs. 1.4) and SCD (1.4 vs. 0.8) (all <i>p</i> < 0.05). Conclusions: SVD is a frequent feature in HCM independent of the clinical presentation. A higher SVD score is observed in HCM-HF and in areas with replacement-type fibrosis. Although SVD is part of the HCM phenotype, further remodeling of the microcirculation might occur secondarily to fibrosis.https://www.mdpi.com/2077-0383/10/4/575hypertrophic cardiomyopathypathologysmall vessel disease |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Monica De Gaspari Cristina Basso Martina Perazzolo Marra Stefania Elia Maria Bueno Marinas Annalisa Angelini Gaetano Thiene Stefania Rizzo |
spellingShingle |
Monica De Gaspari Cristina Basso Martina Perazzolo Marra Stefania Elia Maria Bueno Marinas Annalisa Angelini Gaetano Thiene Stefania Rizzo Small Vessel Disease: Another Component of the Hypertrophic Cardiomyopathy Phenotype Not Necessarily Associated with Fibrosis Journal of Clinical Medicine hypertrophic cardiomyopathy pathology small vessel disease |
author_facet |
Monica De Gaspari Cristina Basso Martina Perazzolo Marra Stefania Elia Maria Bueno Marinas Annalisa Angelini Gaetano Thiene Stefania Rizzo |
author_sort |
Monica De Gaspari |
title |
Small Vessel Disease: Another Component of the Hypertrophic Cardiomyopathy Phenotype Not Necessarily Associated with Fibrosis |
title_short |
Small Vessel Disease: Another Component of the Hypertrophic Cardiomyopathy Phenotype Not Necessarily Associated with Fibrosis |
title_full |
Small Vessel Disease: Another Component of the Hypertrophic Cardiomyopathy Phenotype Not Necessarily Associated with Fibrosis |
title_fullStr |
Small Vessel Disease: Another Component of the Hypertrophic Cardiomyopathy Phenotype Not Necessarily Associated with Fibrosis |
title_full_unstemmed |
Small Vessel Disease: Another Component of the Hypertrophic Cardiomyopathy Phenotype Not Necessarily Associated with Fibrosis |
title_sort |
small vessel disease: another component of the hypertrophic cardiomyopathy phenotype not necessarily associated with fibrosis |
publisher |
MDPI AG |
series |
Journal of Clinical Medicine |
issn |
2077-0383 |
publishDate |
2021-02-01 |
description |
Background: Hypertrophic cardiomyopathy (HCM) is characterized by myocardial disarray, small vessel disease (SVD), and fibrosis. The relationship between SVD and replacement-type fibrosis is still unclear. Methods: Histopathologic assessment of replacement-type fibrosis and SVD in HCM patients with either end-stage heart failure (HF) or sudden cardiac death (SCD). Chronic ischemic heart disease (IHD) patients served as controls. Results: Forty HCM hearts, 10 HF and 30 SCD, were studied. Replacement-type fibrosis was detected in all HF and in 57% of SCD cases. In SCD, replacement-type fibrosis was associated with older age, greater septal thickness, SVD prevalence, and score (all <i>p</i> < 0.05). Prevalence of SVD did not show significant differences among SCD, HF, and IHD (73%, 100% and 95%, respectively), while SVD score was higher in HF than IHD and SCD (2.4, 1.95, and 1.18, respectively) and in areas with replacement-type fibrosis vs. those without in HF (3.4 vs. 1.4) and SCD (1.4 vs. 0.8) (all <i>p</i> < 0.05). Conclusions: SVD is a frequent feature in HCM independent of the clinical presentation. A higher SVD score is observed in HCM-HF and in areas with replacement-type fibrosis. Although SVD is part of the HCM phenotype, further remodeling of the microcirculation might occur secondarily to fibrosis. |
topic |
hypertrophic cardiomyopathy pathology small vessel disease |
url |
https://www.mdpi.com/2077-0383/10/4/575 |
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