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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 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 VI: Nursing Management01:29

Cardiomyopathy VI: Nursing Management

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),...
Cardiomyopathy VII: Pre and Post Operative Nursing Management01:28

Cardiomyopathy VII: Pre and Post Operative Nursing Management

Patients with hypertrophic cardiomyopathy (HCM) and left ventricular outflow tract (LVOT) obstruction who remain symptomatic despite optimal medical therapy may undergo a septal myectomy (Morrow procedure). This procedure involves excising a portion of the hypertrophied septum below the aortic valve using a heart-lung machine to improve blood flow through the LVOT. Effective preoperative and postoperative nursing management ensures successful patient outcomes, minimizes complications, and...
Ischemic Heart Disease: Overview01:17

Ischemic Heart Disease: Overview

Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and narrowing...

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Related Experiment Video

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Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
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Hypertrophic cardiomyopathy: practical steps for preventing sudden death.

Barry J Maron1

  • 1Hypertrophic Cardiomyopathy Center, Minneapolis Heart Institute Foundation, Minneapolis, MN, 55407, USA. hcm.maron@mhif.org.

The Physician and Sportsmedicine
|January 21, 2010
PubMed
Summary

Hypertrophic cardiomyopathy (HCM) is a rare but fatal condition in athletes. Differentiating HCM from athlete's heart requires careful evaluation of specific cardiac and genetic markers.

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Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
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Area of Science:

  • Cardiology
  • Sports Medicine
  • Genetics

Background:

  • Hypertrophic cardiomyopathy (HCM) is a rare cause of sudden cardiac death in young athletes.
  • Distinguishing HCM from physiological cardiac hypertrophy (athlete's heart) presents a diagnostic challenge.
  • HCM deaths in young, seemingly healthy individuals garner significant attention.

Purpose of the Study:

  • To review the diagnostic approaches for differentiating hypertrophic cardiomyopathy (HCM) from athlete's heart.
  • To highlight key clinical and genetic factors in the differential diagnosis of HCM.
  • To provide recommendations for athletic participation in individuals diagnosed with HCM.

Main Methods:

  • Review of clinical presentation, family history, and physical examination findings in HCM.
  • Electrocardiography (ECG) and echocardiography as primary diagnostic tools.
  • Discussion of genetic testing and its current role in HCM diagnosis.

Main Results:

  • Differential diagnosis relies on identifying heterogeneous left ventricle hypertrophy, left atrial enlargement, and specific ECG patterns.
  • Family history and gene mutations are crucial indicators for HCM.
  • Molecular detection methods are not yet standard clinical practice.

Conclusions:

  • Accurate differentiation between HCM and athlete's heart is critical for preventing sudden cardiac death.
  • A combination of clinical, imaging, and genetic assessments aids in diagnosis.
  • Athletes with confirmed HCM should avoid high-intensity competitive sports.