Cardiomyopathy: An Overview

Area of Science:

• Cardiology
• Genetics
• Internal Medicine

Background:

• Cardiomyopathy definitions and classifications have recently evolved significantly.
• Cardiomyopathies are broadly categorized into primary (genetic, mixed, acquired) and secondary types.
• These conditions manifest in diverse phenotypes, including dilated, hypertrophic, and restrictive patterns.

Purpose of the Study:

• To provide an updated overview of cardiomyopathy classification, phenotypes, and clinical presentations.
• To highlight the role of family physicians in diagnosing and managing various cardiomyopathies.
• To discuss current diagnostic modalities and emerging genetic testing approaches.

Main Methods:

• Review of recent advancements in cardiomyopathy definition and classification.
• Analysis of clinical presentations and diagnostic criteria for different cardiomyopathy types.
• Discussion of therapeutic strategies, including heart failure management, device implantation, and transplantation.

Main Results:

• Hypertrophic cardiomyopathy is the most common primary type, associated with symptoms like dyspnea and risk of sudden cardiac death.
• Dilated cardiomyopathy, often genetic or acquired, typically presents with heart failure symptoms.
• Restrictive cardiomyopathy is less common, often linked to systemic diseases; acquired variants like peripartum cardiomyopathy are also noted.

Conclusions:

• Family physicians must recognize diverse cardiomyopathy presentations, including rare and acquired forms.
• Diagnosis relies on clinical evaluation, electrocardiography, and echocardiography.
• Management involves staged heart failure therapy, activity modification, device consideration, and potential heart transplantation, with genetic testing as an emerging tool.