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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 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 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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Mechanism of Cardiac Arrhythmias01:28

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Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
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Cardiac Action Potential01:30

Cardiac Action Potential

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Cardiac action potentials are essential for proper heart function, enabling the rhythmic contractions needed for adequate blood circulation. Nodal cells and Purkinje fibers, specialized for electrical conduction, generate these action potentials.
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
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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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Cardiac sarcoma attached to pacemaker lead.

Ching-Hui Sia1,2, Fang Qin Goh3, William Kok-Fai Kong1,2

  • 1Department of Cardiology, National University Heart Centre Singapore, Singapore, Singapore.

Journal of Cardiac Surgery
|April 16, 2020
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Summary
This summary is machine-generated.

This case report highlights a rare cardiac sarcoma that mimicked an atrial myxoma. Despite surgical resection, the patient succumbed to complications, underscoring the poor prognosis of cardiac tumors.

Keywords:
cardiac masscardiac sarcomacardiovascular pathologypacemaker

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Area of Science:

  • Cardiology
  • Oncology
  • Pathology

Background:

  • Cardiac sarcoma is a rare malignancy.
  • It can present symptomatically, mimicking other cardiac conditions like atrial myxoma.
  • Early diagnosis and treatment are crucial due to poor prognosis.

Observation:

  • A 68-year-old male presented with breathlessness.
  • Echocardiography revealed a large right atrial mass attached to a pacemaker lead, initially suspected as atrial myxoma.
  • A 60x30x30mm irregular tumor was resected.

Findings:

  • Histopathology confirmed the tumor as undifferentiated pleomorphic sarcoma.
  • The patient developed a surgical site infection and died from acute mediastinitis.

Implications:

  • Cardiac sarcomas present diagnostic challenges, often mimicking benign conditions.
  • Current curative treatments for cardiac sarcoma are limited.
  • This case emphasizes the need for improved diagnostic strategies and therapeutic options for cardiac sarcomas.