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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...
Staphylococcal Skin Infections01:29

Staphylococcal Skin Infections

Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...

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Related Experiment Video

Updated: May 10, 2026

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

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Published on: June 4, 2012

Staphylococcus aureus endocarditis: a consequence of medical progress.

Vance G Fowler1, Jose M Miro, Bruno Hoen

  • 1Duke University Medical Center, Durham, NC 27710, USA. vance.fowler@duke.edu

JAMA
|June 24, 2005
PubMed
Summary

Staphylococcus aureus is the leading cause of infective endocarditis (IE) globally. This study highlights significant regional variations in S aureus IE and methicillin-resistant S aureus (MRSA) IE patient characteristics.

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Published on: January 7, 2019

Area of Science:

  • Infectious Diseases
  • Epidemiology
  • Cardiology

Background:

  • Infective endocarditis (IE) caused by Staphylococcus aureus is a significant global health concern.
  • The worldwide prevalence and regional variations of S aureus IE remain largely undocumented.
  • Understanding these patterns is crucial for effective public health strategies.

Purpose of the Study:

  • To investigate the international emergence of healthcare-associated S aureus IE and methicillin-resistant S aureus (MRSA) IE.
  • To analyze regional differences in patient demographics and clinical features of S aureus IE.

Main Methods:

  • A prospective observational cohort study involving 1779 patients with definite IE.
  • Data collected from 39 medical centers across 16 countries within the International Collaboration on Endocarditis-Prospective Cohort Study (ICE-PCS) from 2000-2003.
  • In-hospital mortality was the primary outcome measure.

Main Results:

  • Staphylococcus aureus was identified as the most common pathogen in IE (31.4% of cases).
  • Healthcare-associated S aureus IE was prevalent, with significant regional variation (25.9% to 54.2%).
  • Methicillin-resistant S aureus (MRSA) IE rates differed significantly by region, being highest in the US and Brazil.

Conclusions:

  • Staphylococcus aureus is a primary cause of infective endocarditis worldwide.
  • Significant regional disparities exist in the characteristics of patients with S aureus IE.
  • Further research is needed to elucidate the underlying reasons for these observed regional variations.