Hypertrophic cardiomyopathy. Clinical and pathologic correlates

Area of Science:

• Cardiology
• Pathology

Background:

• Hypertrophic cardiomyopathy (HCM) is a primary myocardial disease.
• It is defined by increased cardiac mass in a non-dilated, hypertrophied left ventricle.
• HCM exhibits substantial phenotypic variability, including diffuse and segmental hypertrophy patterns.

Purpose of the Study:

• To describe the clinical and morphologic characteristics of hypertrophic cardiomyopathy.
• To outline the histopathologic features associated with the disease.
• To detail the functional derangements observed in hypertrophic cardiomyopathy.

Main Methods:

• Review of clinical presentations and morphologic findings in HCM.
• Analysis of histopathologic features such as myofiber disorganization and fibrosis.
• Assessment of functional abnormalities including outflow obstruction and diastolic dysfunction.

Main Results:

• HCM presents with diverse clinical and morphologic phenotypes.
• Key histopathologic findings include myofiber disorganization, arteriosclerosis, and fibrosis.
• Functional derangements encompass dynamic ventricular outflow obstruction and diastolic dysfunction, potentially leading to heart failure.

Conclusions:

• Hypertrophic cardiomyopathy is a complex myocardial disease with significant heterogeneity.
• Understanding its varied phenotypes, histopathology, and functional impacts is crucial for patient management.
• The condition is associated with significant functional impairments, including heart failure.