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Related Concept Videos

Mitral Regurgitation I: Introduction01:20

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Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
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Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
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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...
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Cardiomyopathy II: Dilated Cardiomyopathy01:30

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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,...
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

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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...
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Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

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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...
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Related Experiment Video

Updated: May 5, 2026

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet
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Left ventricular involvement in right ventricular cardiomyopathy.

B Pinamonti1, A Salvi, F Silvestri

  • 1Department of Cardiology, Ospedale Maggiore, Italy.

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Summary

Left ventricular (LV) involvement is common in right ventricular cardiomyopathy (RVCMP). This cardiac condition can progress, with some patients showing worsening LV function over time.

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Area of Science:

  • Cardiology
  • Cardiovascular Diseases
  • Echocardiography

Background:

  • Right ventricular cardiomyopathy (RVCMP) is a primary myocardial disease.
  • The extent and progression of left ventricular (LV) involvement in RVCMP are not fully understood.

Purpose of the Study:

  • To investigate the prevalence and characteristics of LV involvement in patients diagnosed with RVCMP.
  • To determine if LV involvement in RVCMP is a progressive condition.

Main Methods:

  • Utilized two-dimensional echocardiography (2D echo) to assess cardiac structure and function.
  • Analyzed LV characteristics in 31 patients with RVCMP, categorizing them into distinct groups based on initial findings and follow-up.
  • Monitored changes in LV appearance and function over the study period.

Main Results:

  • Left ventricular (LV) involvement was observed in a significant proportion of RVCMP patients.
  • In one group, initially normal LV structures became abnormal during follow-up in 4 out of 19 patients.
  • In a second group, 12 patients presented with pre-existing LV involvement at diagnosis, with one experiencing worsened LV function.

Conclusions:

  • Left ventricular (LV) involvement is a frequent finding in patients with right ventricular cardiomyopathy (RVCMP).
  • The data suggest that LV involvement in RVCMP can be progressive, indicating a potential for worsening cardiac function over time.