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Related Concept Videos

Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

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...
Pericarditis I: Introduction01:22

Pericarditis I: Introduction

Pericarditis is defined as the inflammation of the pericardium, the thin, sac-like membrane surrounding the heart. This condition can cause significant chest pain and other symptoms, often necessitating medical intervention. The pericardium has two layers: the inner visceral layer and the outer parietal layer, separated by a small amount of fluid that reduces friction during heartbeats.Types of PericarditisPericarditis can be classified into several types based on the duration and nature of the...
Endocarditis I: Introduction01:25

Endocarditis I: Introduction

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...
Streptococcal Pharyngitis01:27

Streptococcal Pharyngitis

Streptococcal pharyngitis, commonly known as “strep throat,” is an acute infection of the oropharyngeal tissues caused by the Gram‑positive Group A Streptococcus (Streptococcus pyogenes). Transmission occurs primarily through respiratory droplets expelled during coughing, sneezing, or talking.Mechanisms of Host Entry and Immune EvasionUpon entering the host, S. pyogenes adheres to the mucosal epithelial cells of the pharynx via surface proteins, notably lipoteichoic acid and the antiphagocytic...
Pericarditis II: Clinical Features and Diagnostic Tests01:19

Pericarditis II: Clinical Features and Diagnostic Tests

Pericarditis is distinguished by inflammation of the pericardium, the fibrous sac that encases the heart. It can be acute, lasting less than six weeks, or chronic, persisting for over three months. Understanding its clinical manifestations and diagnostic findings is crucial for timely and effective management.Clinical ManifestationsWhile pericarditis can be asymptomatic, it usually presents with characteristic symptoms such as:Chest Pain: The most characteristic symptom of pericarditis is chest...
Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...

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Related Experiment Video

Updated: Jul 17, 2026

Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling
08:25

Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling

Published on: April 7, 2015

Purulent pericarditis caused by group a streptococcus.

Sumita Bhaduri-McIntosh1, Meeta Prasad, José Moltedo

  • 1Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut 06520, USA.

Texas Heart Institute Journal
|January 12, 2007
PubMed
Summary

Purulent pericarditis is rare, usually caused by common bacteria. This study details an unusual case of purulent pericarditis caused by Streptococcus pyogenes (Group A Streptococcus), offering a literature review.

Related Experiment Videos

Last Updated: Jul 17, 2026

Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling
08:25

Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling

Published on: April 7, 2015

Area of Science:

  • Infectious Diseases
  • Cardiology
  • Microbiology

Background:

  • Purulent pericarditis is a rare but serious infection of the pericardium.
  • Common causative agents include Staphylococcus aureus, Streptococcus pneumoniae, and anaerobic bacteria.
  • Group A Streptococcus (GAS) is an uncommon cause of purulent pericarditis.

Purpose of the Study:

  • To report an unusual case of purulent pericarditis caused by Streptococcus pyogenes (Group A Streptococcus).
  • To review the existing literature on purulent pericarditis, focusing on GAS as a causative agent.

Main Methods:

  • Case report presentation.
  • Comprehensive literature search on purulent pericarditis and Streptococcus pyogenes.

Main Results:

  • The patient presented with symptoms consistent with purulent pericarditis.
  • Cultures confirmed Streptococcus pyogenes (Lancefield group A Streptococcus) as the causative pathogen.
  • Literature review identified limited cases of GAS-induced purulent pericarditis.

Conclusions:

  • Streptococcus pyogenes (Group A Streptococcus) can be a rare cause of purulent pericarditis.
  • Prompt diagnosis and appropriate antimicrobial therapy are crucial for favorable outcomes.
  • Further research is warranted to understand the epidemiology and management of GAS-related purulent pericarditis.