Related Experiment Video
Updated: Jun 29, 2025
Experimental Endocarditis Model of Methicillin Resistant Staphylococcus aureus MRSA in Rat
Published on: June 4, 2012
Native Aortic Valve Infective Endocarditis Secondary to Community-Acquired Methicillin-Resistant Staphylococcus
Saif Awlad Thani1, Shahd M Al Jamei2, Kadhiya N Al Azri2
1Pediatric Critical Care, The Royal Hospital, Muscat, OMN.
Abstract:
Infective endocarditis (IE) refers to a microbial infection affecting either a heart valve or endocardium, resulting in tissue damage and the formation of vegetation. Native aortic valve endocarditis in children is rare and is associated with serious complications related to valvular insufficiency and systemic embolizations. As reports about community-acquired methicillin-resistant Staphylococcus aureus (MRSA) native aortic valve endocarditis in children are very scarce, we report this case along with a literature review about its complications and management. Here, we report the case of a seven-month-old infant who was previously healthy and presented with signs and symptoms of shock and systemic embolizations secondary to native aortic valve IE. His blood culture showed MRSA. He developed aortic valve insufficiency heart failure and multiorgan septic emboli that progressed to fatal refractory multiorgan failure. The management of complicated aortic valve endocarditis in children is challenging and needs a multidisciplinary team approach and prompt intervention.
Insights
This case report details a rare instance of methicillin-resistant Staphylococcus aureus (MRSA) infective endocarditis in an infant. Despite prompt intervention, the infection led to severe complications and a fatal outcome, highlighting treatment challenges.
Area of Science:
- Pediatric Cardiology
- Infectious Diseases
- Critical Care Medicine
Background:
- Infective endocarditis (IE) is a serious microbial infection of the heart's inner lining or valves.
- Native aortic valve endocarditis in children is uncommon and carries risks of significant complications.
- Community-acquired methicillin-resistant Staphylococcus aureus (MRSA) IE in pediatric patients is exceptionally rare.
Observation:
- A previously healthy seven-month-old infant presented with shock and systemic emboli.
- Blood cultures confirmed MRSA as the causative agent of native aortic valve IE.
- The infant developed severe aortic valve insufficiency, heart failure, and multiorgan septic emboli.
Findings:
- The infant's condition rapidly deteriorated despite management.
- Refractory multiorgan failure ensued, leading to a fatal outcome.
- This case underscores the aggressive nature and poor prognosis of MRSA native aortic valve endocarditis in infants.
Implications:
- Management of complicated pediatric aortic valve endocarditis is complex.
- A multidisciplinary team approach is crucial for optimal patient outcomes.
- Early diagnosis and prompt, aggressive intervention are vital in pediatric IE cases.
