Related Experiment Video

Updated: Aug 14, 2026

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

Successful treatment of MRSA native valve endocarditis with oral linezolid therapy: a case report

N Nathani1, P Iles, T S J Elliott

  • 1Critical Care Unit, Department of Critical Care, Queen Elizabeth Hospital, Edgbaston, Birmingham B15 2TH, UK. lungdoc@doctors.org.uk

The Journal of Infection
|November 18, 2005
PubMed

Insights

Staphylococcal endocarditis is a serious infection. Oral linezolid provided a successful treatment option for a patient with methicillin-resistant Staphylococcus aureus endocarditis lacking venous access.

Area of Science:

  • Infectious Diseases
  • Cardiology
  • Pharmacology

Background:

  • Staphylococcal endocarditis is a leading cause of infective endocarditis with high mortality.
  • Intravenous vancomycin is the standard treatment for methicillin-resistant Staphylococcus aureus (MRSA) endocarditis.
  • Prolonged antibiotic therapy is crucial for achieving a culture-negative state.

Observation:

  • A case of staphylococcal endocarditis in a patient with limited venous access was observed.
  • The patient had methicillin-resistant Staphylococcus aureus (MRSA) endocarditis.

Findings:

  • Successful treatment of MRSA endocarditis was achieved using oral linezolid.
  • The treatment duration with oral linezolid was 4 weeks.
  • This approach was necessitated by the patient's lack of venous access.

Implications:

  • Oral linezolid can be a viable alternative for MRSA endocarditis when intravenous access is challenging.
  • This case highlights the potential for oral antibiotic therapy in complex endocarditis cases.
  • Further research may explore the efficacy of oral linezolid in similar patient populations.

Related Concept Videos

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...
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...
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...
Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
Mechanism of Antibiotic Resistance in MRSA01:25

Mechanism of Antibiotic Resistance in MRSA

Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and acquisition...