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Updated: Jun 10, 2026

Isolation and Functional Characterization of Human Ventricular Cardiomyocytes from Fresh Surgical Samples
Published on: April 21, 2014
Novel hypertrophic cardiomyopathy phenotype: segmental hypertrophy isolated to the posterobasal left ventricular free
Barry J Maron1, Mark V Sherrid, Tammy S Haas
1Hypertrophic Cardiomyopathy Center, Minneapolis Heart Institute Foundation, Minnesota, USA. hcm.maron@mhif.org
Insights
This study highlights the diverse presentations of hypertrophic cardiomyopathy (HC). Novel cases with posterobasal left ventricular (LV) hypertrophy and mitral valve prolapse further expand the known morphologic spectrum of this disease.
Area of Science:
- Cardiology
- Genetics
- Medical Imaging
Background:
- Hypertrophic cardiomyopathy (HC) is known for its wide range of clinical presentations.
- Understanding this phenotypic heterogeneity is crucial for accurate diagnosis and management.
Observation:
- Two new patients presented with isolated posterobasal left ventricular (LV) free wall hypertrophy.
- Both patients also exhibited mitral valve prolapse.
Findings:
- These cases add to the known morphologic diversity of hypertrophic cardiomyopathy.
- The findings underscore the continued evolution of understanding HC phenotypes, even with advanced imaging.
Implications:
- These observations expand the recognized spectrum of hypertrophic cardiomyopathy.
- Further research into the genetic and molecular underpinnings of these diverse phenotypes is warranted.
- Improved characterization of HC variants may lead to more personalized treatment strategies.
Abstract:
Few other diseases show the degree of phenotypic heterogeneity expressed by HC. The two novel patients reported here with isolated posterobasal LV free wall hypertrophy (and mitral valve prolapse) extend this morphologic diversity even farther, now 3 decades after the introduction of contemporary 2-dimensional imaging.
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