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Related Concept Videos

Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

603
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...
603
Rheumatic Heart Disease III: Medical Management01:21

Rheumatic Heart Disease III: Medical Management

401
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...
401
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies01:22

Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies

730
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...
730
Rheumatic Heart Disease IV: Nursing Management01:20

Rheumatic Heart Disease IV: Nursing Management

364
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...
364
Endocarditis I: Introduction01:25

Endocarditis I: Introduction

567
Introduction:Endocarditis is the infection of the endocardium, the inner lining of the heart and its valves. When the heart muscle is involved, the condition is termed myocarditis, while an infection of the outer lining is called pericarditis. Infective endocarditis (IE) primarily affects the endocardium, where pathogens adhere to the valves or lining, forming vegetation that can lead to severe complications. Infective endocarditis occurs when microorganisms, usually bacteria from other body...
567
Endocarditis III: Medical Management01:18

Endocarditis III: Medical Management

277
Infective endocarditis management involves a multifaceted approach encompassing infection prevention, lifestyle modifications, pharmacological therapy, and surgical management.Infection Prevention:Hand Hygiene: Thorough handwashing is crucial to prevent the spread of infection. Hand hygiene should be performed regularly, especially before and after using the restroom.Oral Hygiene: Good oral hygiene is essential. It includes brushing teeth immediately after waking up and before bed, flossing...
277

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Towards developing a vaccine for rheumatic heart disease.

Geethanjali Devadoss Gandhi1,2, Navaneethakrishnan Krishnamoorthy1,2,3, Ussama M Abdel Motal1

  • 1Division of Cardiovascular Research, Sidra Medical and Research Center, Qatar Foundation, Doha, Qatar.

Global Cardiology Science & Practice
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Rheumatic heart disease (RHD) is a severe autoimmune condition following Group A Streptococcus infections. Developing a global RHD vaccine is challenging due to bacterial diversity and host cross-reactivity, necessitating advanced computational methods.

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Area of Science:

  • Immunology
  • Infectious Diseases
  • Vaccinology

Background:

  • Rheumatic heart disease (RHD) is a severe autoimmune complication of Group A Streptococcus (GAS) pharyngitis.
  • It results in chronic heart valve damage, distinct from direct bacterial infection.
  • Factors like poor medical care and repeated GAS exposure contribute to RHD development.

Purpose of the Study:

  • To review current vaccine targets for Streptococcus pyogenes.
  • To highlight the importance of in silico approaches in RHD vaccine design.

Main Methods:

  • Review of existing literature on GAS vaccine targets.
  • Discussion of computational (in silico) methods for vaccine development.

Main Results:

  • Significant diversity among S. pyogenes strains poses a challenge for vaccine development.
  • Cross-reactivity between streptococcal proteins and host tissues complicates vaccine design.
  • In silico approaches offer a promising strategy to overcome these challenges.

Conclusions:

  • A universal RHD vaccine remains elusive due to S. pyogenes diversity and autoimmunity concerns.
  • Computational methods are crucial for identifying effective vaccine targets and designing novel RHD vaccines.