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Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
Hypertrophic Cardiomyopathy 2020
1PennState Health Milton S. Hershey Medical Center, 500 University Drive, Hershey, PA, 17033, USA.
Insights
Hypertrophic cardiomyopathy (HCM) is a complex heart condition. While mortality is low, symptoms from left ventricular outflow tract (LVOT) obstruction are challenging, with new therapies showing promise.
Area of Science:
- Cardiology
- Genetics
- Internal Medicine
Background:
- Hypertrophic cardiomyopathy (HCM) is a primary genetic heart muscle disease.
- It is characterized by unexplained left ventricular hypertrophy (LVH).
- HCM presents with diverse clinical manifestations and variable outcomes.
Purpose of the Study:
- To review the pathophysiology and natural history of HCM.
- To describe diagnostic and assessment strategies for HCM.
- To outline contemporary management approaches for HCM.
Main Methods:
- Literature review of pathophysiology, natural history, diagnosis, and management.
- Analysis of current therapeutic options, including medical and interventional approaches.
- Inclusion of recent clinical trial data on novel therapies.
Main Results:
- HCM-related mortality is low, but symptoms, particularly from LVOT obstruction, persist.
- Medical therapies, including novel myosin modulators like mavacamten, show potential in reducing symptoms.
- Septal reduction therapy and advanced treatments are viable for refractory cases.
Conclusions:
- HCM is a heterogeneous disease with generally good long-term survival.
- Symptomatic management is key, with various medical and procedural options available.
- Ongoing research, including novel drug development, aims to improve functional capacity and outcomes.
Purpose Of Review:
To briefly review the pathophysiology and natural history of hypertrophic cardiomyopathy (HCM) and to describe the diagnosis, assessment, and contemporary management strategies.
Recent Findings:
HCM-related mortality remains low; however, symptoms due in large part to LVOT obstruction remain a clinical dilemma. Several medical therapies have been shown to reduce symptoms and improve functional capacity, including several recent phase 2 clinical trials involving the novel myosin modulator mavacamten. In patients with refractory symptoms, septal reduction therapy or advanced therapies remain viable options in many cases. HCM is a complex and heterogeneous disease with diverse presentations and variable anatomy and clinical outcomes. The majority of patients will remain asymptomatic or with minimal symptoms and long-term survival remains high. For symptomatic patients, a variety of medical therapies, along with septal reduction therapies, have been shown to reduce symptoms and improve functional capacity.
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