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Related Concept Videos

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...
Endocarditis II: Clinical Features of Infective Endocarditis01:25

Endocarditis II: Clinical Features of Infective Endocarditis

Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
Endocarditis III: Medical Management01:18

Endocarditis III: Medical Management

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...
Endocarditis IV: Nursing Management01:29

Endocarditis IV: Nursing Management

Infective endocarditis (IE) is a chronic infection of the heart's endocardium, primarily affecting the heart valves. A detailed nursing assessment for a patient with IE involves collecting subjective and objective data to ensure an accurate diagnosis and timely intervention.Subjective DataThe nurse gathers information about the patient's symptoms and complaints during the subjective assessment. Patients with infective endocarditis often report non-specific symptoms that can mimic other...
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...
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: May 11, 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

HACEK-induced endocarditis.

Nancy Wassef1, Essam Rizkalla, Naeem Shaukat

  • 1Department of Cardiology, Kettering General Hospital, Kettering, UK. nancy.wassef@gmail.com

BMJ Case Reports
|May 18, 2013
PubMed
Summary
This summary is machine-generated.

A patient with a prosthetic aortic valve developed infective endocarditis caused by Haemophilus aphrophilus. Prompt diagnosis and targeted antibiotic therapy led to a full recovery.

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Experimental Endocarditis Model of Methicillin Resistant Staphylococcus aureus (MRSA) in Rat
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Experimental Endocarditis Model of Methicillin Resistant Staphylococcus aureus (MRSA) in Rat

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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

Experimental Endocarditis Model of Methicillin Resistant Staphylococcus aureus (MRSA) in Rat
07:46

Experimental Endocarditis Model of Methicillin Resistant Staphylococcus aureus (MRSA) in Rat

Published on: June 4, 2012

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Medical Microbiology

Background:

  • Prosthetic valve endocarditis (PVE) poses a significant risk, particularly in patients with pre-existing conditions like diabetes.
  • This case highlights a rare presentation of PVE in a patient with a history of aortic valve replacement.

Observation:

  • The patient presented with constitutional symptoms including lethargy, night sweats, and decreased appetite, alongside signs of splinter hemorrhages and a systolic ejection murmur.
  • Elevated inflammatory markers (erythrocyte sedimentation rate and C-reactive protein) were noted.
  • Echocardiography revealed vegetations on the mitral valve, confirmed by transesophageal echocardiography.

Findings:

  • Blood cultures identified Haemophilus aphrophilus as the causative agent of infective endocarditis.
  • The patient was initially treated empirically with vancomycin, rifampicin, and gentamicin.
  • Successful treatment involved a 6-week course of ceftriaxone and a 2-week course of gentamicin, leading to resolution of vegetations.

Implications:

  • This case underscores the importance of considering PVE in patients with prosthetic valves presenting with non-specific symptoms.
  • Early and accurate microbiological diagnosis is crucial for effective, targeted antibiotic therapy in infective endocarditis.
  • Haemophilus aphrophilus, though uncommon, should be recognized as a potential pathogen in PVE, necessitating appropriate antimicrobial selection.