Hypertrophic cardiomyopathy

Emma Ivens1

  • 1Department of Cardiology, Epworth Hospital, Richmond, Vic., Australia. emmai@epworth.org.au

Heart, Lung & Circulation
|December 15, 2005
PubMed

Insights

Hypertrophic cardiomyopathy, a genetic heart disease, involves thickened ventricular walls. This review covers its diagnosis, symptoms, histology, and management strategies for various patient groups.

Area of Science:

  • Cardiology
  • Genetics
  • Pathology

Background:

  • Hypertrophic cardiomyopathy (HCM) is the most common inherited cardiac disease.
  • It is characterized by disproportionate thickening of the ventricular wall.
  • HCM affects approximately 1 in 500 individuals.

Purpose of the Study:

  • To provide a comprehensive review of hypertrophic cardiomyopathy.
  • To discuss diagnostic methods, clinical presentation, and histological findings.
  • To outline current management and treatment recommendations.

Main Methods:

  • Review of existing literature and clinical guidelines.
  • Discussion of diagnostic modalities, including transthoracic echocardiography.
  • Analysis of histological features and clinical manifestations.

Main Results:

  • HCM diagnosis relies on clinical evaluation and imaging.
  • Histological signs are crucial for confirmation, especially postmortem or during myectomy.
  • Management strategies vary based on patient subgroups and symptom severity.

Conclusions:

  • Early diagnosis and risk stratification are essential for managing HCM.
  • Adherence to ACC/ESC guidelines is recommended for screening relatives.
  • Personalized management plans improve outcomes for patients with hypertrophic cardiomyopathy.

Related Concept Videos

Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
Cardiomyopathy I: Introduction and Classification01:25

Cardiomyopathy I: Introduction and Classification

Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...