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Related Concept Videos

Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

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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 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 IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

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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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Cardiomyopathy V: Interprofessional Care01:29

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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...
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Cardiomyopathy I: Introduction and Classification01:25

Cardiomyopathy I: Introduction and Classification

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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 VI: Nursing Management01:29

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Assessment: Nursing management of patients with cardiomyopathy begins with a thorough assessment of the patient's history, including a family history of cardiomyopathy or sudden cardiac death, personal history of heart disease, hypertension, diabetes, and any alcohol consumption or drug use.During the physical examination, assess vital signs, look for signs of heart failure (such as edema, jugular venous distention, and cyanosis), auscultate for abnormal heart sounds (like murmurs and gallops),...
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Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
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[Syncope in hypertrophic (obstructive) cardiomyopathy].

Hubert Seggewiß1, Angelika Koljaja-Batzner2, Kornelia Seggewiß

  • 1Standort Juliusspital, Medizinische Klinik - Kardiologie & Internistische Intensivmedizin, Klinikum Würzburg-Mitte, Juliuspromenade 19, 97070, Würzburg, Deutschland. seggewiss.hubert@t-online.de.

Herzschrittmachertherapie & Elektrophysiologie
|May 16, 2018
PubMed
Summary
This summary is machine-generated.

Hypertrophic cardiomyopathy, a genetic heart condition, often causes left ventricle outflow obstruction and sudden cardiac death risk. Diagnosis involves detailed syncope history and risk stratification for interventions like ICD implantation.

Keywords:
Heart diseasesMyectomyObstruction left ventriclePercutaneous septal ablationSudden cardiac death

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Area of Science:

  • Cardiology
  • Genetics
  • Cardiac Electrophysiology

Background:

  • Hypertrophic cardiomyopathy (HCM) is the most prevalent genetic cardiac disease.
  • Dynamic left ventricular outflow tract obstruction affects approximately 70% of HCM patients.
  • Younger patients with HCM face an elevated risk of sudden cardiac death.

Purpose of the Study:

  • To outline diagnostic and therapeutic strategies for hypertrophic cardiomyopathy.
  • To emphasize the importance of evaluating syncope etiology in HCM patients.
  • To discuss risk stratification for sudden cardiac death and symptomatic management.

Main Methods:

  • Detailed patient history focusing on syncope circumstances to differentiate rhythmogenic and hemodynamic causes.
  • Prognostic assessment for sudden cardiac death risk, guiding decisions on implantable cardioverter-defibrillator (ICD) implantation.
  • Symptomatic therapy evaluation, including medical management and interventional options.

Main Results:

  • Syncope and presyncope are common symptoms in HCM, alongside dyspnea and angina.
  • Distinguishing between rhythmogenic and hemodynamic causes of syncope is crucial for diagnosis.
  • Risk stratification is essential for identifying patients who may benefit from ICDs.

Conclusions:

  • HCM management requires a comprehensive approach, integrating diagnosis, risk assessment, and tailored therapy.
  • Medical therapy with beta-blockers and/or verapamil is the first line for symptomatic treatment.
  • Percutaneous septal ablation and surgical myectomy are effective complementary options for refractory symptoms in HCM.