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Related Concept Videos

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 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 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...
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 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...
Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send blood...

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Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography
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Left ventricular noncompaction: a diagnostically challenging cardiomyopathy.

Timothy E Paterick1, A Jamil Tajik

  • 1Aurora St. Luke's Cardiomyopathy Center, Aurora Cardiovascular Services, University of Wisconsin School of Medicine and Public Health, Aurora St. Luke's Medical Center, Milwaukee, WI 53215, USA.

Circulation Journal : Official Journal of the Japanese Circulation Society
|June 6, 2012
PubMed
Summary
This summary is machine-generated.

Diagnosing left ventricular noncompaction (LVNC) cardiomyopathy is difficult due to overlapping features with other heart conditions. A combined morphologic and pathophysiologic approach, integrating genetics, is crucial for accurate LVNC diagnosis.

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Last Updated: May 21, 2026

Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography
07:11

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Published on: October 28, 2020

Evaluation of Left Ventricular Structure and Function using 3D Echocardiography
06:34

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Published on: October 28, 2020

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Area of Science:

  • Cardiology
  • Genetics
  • Pathophysiology

Background:

  • Left ventricular noncompaction (LVNC) cardiomyopathy diagnosis is challenging due to shared features with hypertrophic and dilated cardiomyopathies.
  • Lack of a definitive diagnostic tool, like a genetic marker, contributes to diagnostic uncertainty.
  • Distinguishing LVNC from normal variations is often indistinct, complicating diagnosis.

Purpose of the Study:

  • To highlight the diagnostic challenges in left ventricular noncompaction (LVNC) cardiomyopathy.
  • To emphasize the need for improved diagnostic criteria and approaches for LVNC.
  • To advocate for an integrated diagnostic strategy for LVNC.

Main Methods:

  • Review of current diagnostic criteria and challenges for LVNC.
  • Discussion of echocardiography's role and limitations in LVNC diagnosis.
  • Exploration of the potential of a morphologic/pathophysiologic approach.

Main Results:

  • Current diagnostic criteria for LVNC, particularly echocardiographic measurements, may lack specificity and lead to overdiagnosis.
  • LVNC diagnosis requires significant expertise across various overlapping cardiomyopathies.
  • The distinction between LVNC morphology and normal phenotypes is often unclear.

Conclusions:

  • Accurate and reproducible diagnosis of LVNC is critical due to its severe clinical sequelae, including arrhythmias, heart failure, and sudden death.
  • A shift towards a combined morphologic and pathophysiologic diagnostic approach shows promise for improving LVNC diagnosis.
  • Future understanding and diagnosis of LVNC necessitate integrating cardiac morphology, physiology, pathophysiology, and genetics.