Recurrent Mitral Valve Endocarditis Caused by Streptococcus pneumoniae in a Splenectomized Host.

Area of Science:

• Infectious Diseases
• Cardiology
• Immunology

Background:

• Pneumococcal endocarditis is rare, especially in the current antibiotic era.
• Splenectomized patients have an increased risk of severe infections, including pneumococcal sepsis.
• Recurrent infective endocarditis poses significant management challenges.

Purpose of the Study:

• To report a case of recurrent pneumococcal endocarditis in a splenectomized patient.
• To emphasize the importance of aggressive management strategies for this condition.
• To discuss the implications of splenectomy on susceptibility to recurrent pneumococcal infections.

Main Methods:

• Case report of a 72-year-old male with a history of splenectomy and recurrent pneumococcal endocarditis.
• Clinical presentation, laboratory findings (elevated WBC, positive blood cultures for Streptococcus pneumoniae), and diagnostic imaging (transesophageal echocardiogram) were analyzed.
• Treatment involved intravenous ceftriaxone followed by mitral valve replacement.

Main Results:

• The patient presented with fever and confusion, diagnosed with recurrent pneumococcal mitral valve endocarditis.
• Blood cultures confirmed penicillin-sensitive Streptococcus pneumoniae.
• Transesophageal echocardiogram showed mitral valve vegetation and severe mitral regurgitation, necessitating valve replacement.

Conclusions:

• Recurrent pneumococcal endocarditis can occur even after vaccination and previous treatment.
• Splenectomized individuals are at higher risk for severe and recurrent pneumococcal infections.
• Aggressive treatment, including surgical intervention like valve replacement, is essential for managing recurrent pneumococcal endocarditis in high-risk patients.