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Related Concept Videos

Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

1.0K
Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
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Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies01:22

Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies

1.3K
The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...
1.3K
Rheumatic Heart Disease III: Medical Management01:21

Rheumatic Heart Disease III: Medical Management

544
Rheumatic heart disease (RHD) management can be divided into two main strategies: prevention and long-term management.Primary PreventionPrimary prevention focuses on timely diagnosis and management of group A streptococcal pharyngitis to prevent acute rheumatic fever. The most widely used antibiotic for treating this condition is intramuscular benzathine penicillin G.Acute Rheumatic Fever TreatmentThe primary treatment goal for a patient diagnosed with acute rheumatic fever is to suppress the...
544
Rheumatic Heart Disease IV: Nursing Management01:20

Rheumatic Heart Disease IV: Nursing Management

484
AssessmentA comprehensive assessment is essential in managing a patient with rheumatic heart disease (RHD). Begin with obtaining a detailed medical history, including recent streptococcal infections, a history of rheumatic fever, or previously diagnosed rheumatic heart disease. Assess the patient for symptoms such as fever, chest pain, widespread joint pain (arthralgia), tachycardia, pericardial friction rub, muffled heart sounds, heart murmurs, peripheral edema, subcutaneous nodules, and...
484
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

1.8K
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...
1.8K
Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

699
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
699

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Related Experiment Video

Updated: May 2, 2026

Rat Model of Right-Sided Cardiac Remodeling and Arrhythmia Using Pulmonary Artery Banding
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Rat Model of Right-Sided Cardiac Remodeling and Arrhythmia Using Pulmonary Artery Banding

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Radiation-associated valvular heart disease.

Daniel S Ong1, Robert A Aertker1, Alexandra N Clark1

  • 1Duke University Medical Center, Durham, NC 27710, USA.

The Journal of Heart Valve Disease
|March 7, 2014
PubMed
Summary

Radiation therapy for cancers like Hodgkin

Area of Science:

  • Cardiology
  • Oncology
  • Radiology

Background:

  • Therapeutic ionizing radiation for mediastinal malignancies can lead to delayed cardiac valvular damage.
  • Radiation-associated valvular heart disease (RAVHD) poses treatment challenges due to comorbid cardiac and mediastinal injury.
  • Anthracycline chemotherapy may exacerbate radiation-induced valvular fibrosis.

Observation:

  • Left-sided heart valves are more frequently affected by radiation-induced injury.
  • Calcification patterns in RAVHD suggest radiation may induce an osteogenic phenotype.
  • A case demonstrates successful percutaneous transcatheter valve replacement for complex RAVHD.

Findings:

  • RAVHD develops years after radiation exposure, complicating treatment options.

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  • Percutaneous transcatheter valve replacement offers a viable, less-invasive solution for high-risk patients.
  • Understanding the pathophysiology is crucial for managing radiation-induced cardiac damage.

    • Implications:

    • Novel, less-invasive approaches are vital for treating RAVHD.
    • Increased awareness of cardiac effects of mediastinal radiation is needed.
    • Further research into radiation-induced valvular fibrosis and calcification mechanisms is warranted.