Related Experiment Video

Updated: Apr 3, 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

9.6K

Moraxella osloensis, an emerging pathogen of endocarditis in immunocompromised patients?

Jean-Charles Gagnard1, Nadia Hidri2, Antoine Grillon3

  • 1Infectious Diseases Department, Limoges Teaching Hospital, France.

Swiss Medical Weekly
|September 17, 2015
PubMed

Insights

Moraxella osloensis endocarditis is rare, with only two reported cases. Both immunocompromised patients recovered fully, suggesting this bacterium may be an emerging pathogen in vulnerable populations.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Clinical Medicine

Background:

  • Endocarditis is a serious infection, typically caused by common bacterial pathogens.
  • Infections caused by Moraxella osloensis are infrequently reported in medical literature.

Observation:

  • Two cases of endocarditis caused by Moraxella osloensis in immunocompromised patients are presented.
  • One patient had B-cell chronic lymphocytic leukemia, and the other had a kidney graft associated with Hodgkin's disease.

Findings:

  • Both patients experienced a favorable outcome, achieving a complete cure of their infectious endocarditis.
  • Moraxella osloensis may be an emerging pathogen, particularly in immunocompromised individuals.
  • MALDI-TOF mass spectrometry aids in identifying this bacterium, as biochemical methods are challenging.

Implications:

  • This study highlights Moraxella osloensis as a potential cause of endocarditis in immunocompromised patients.
  • Improved diagnostic methods like MALDI-TOF are crucial for recognizing less common pathogens.
  • Further research is warranted to understand the prevalence and clinical significance of Moraxella osloensis infections.

More Related Videos

Author Spotlight: Advancing Pathogen Detection and Disease Assessment in Real-Time Using M-ROSE03:22

Author Spotlight: Advancing Pathogen Detection and Disease Assessment in Real-Time Using M-ROSE

Published on: March 1, 2024

1.3K
Experimental Endocarditis Model of Methicillin Resistant Staphylococcus aureus MRSA in Rat07:46

Experimental Endocarditis Model of Methicillin Resistant Staphylococcus aureus MRSA in Rat

Published on: June 4, 2012

18.1K

Related Concept Videos

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...
334
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...
578
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...
776
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...
801
Myocarditis III: Medical Management01:14

Myocarditis III: Medical Management

Myocarditis: Comprehensive Medical ManagementMyocarditis, the heart muscle inflammation, requires a comprehensive medical management strategy that addresses the underlying cause, provides supportive care, manages symptoms, and reduces cardiac workload.Infections and Autoimmune CausesAdminister appropriate antimicrobial therapy when an infectious agent causes myocarditis. For instance, penicillin treats infections caused by Group A Streptococcus. In cases where autoimmune processes are...
324
Myocarditis IV: Nursing Management01:22

Myocarditis IV: Nursing Management

Myocarditis is an inflammatory condition of the myocardium requiring meticulous nursing management for optimal patient outcomes. Effective management begins with a thorough assessment of the patient's medical history, paying close attention to past infections, autoimmune disorders, travel history, and exposure to toxins or drugs. Recent viral infections and systemic diseases are particularly relevant due to their potential role in triggering myocarditis.Physical Examination and MonitoringThe...
361