Enterococcal endocarditis.

Area of Science:

• Cardiology
• Infectious Diseases
• Microbiology

Background:

• Enterococci, particularly Enterococcus faecalis, are responsible for 5%-20% of infective endocarditis (IE) cases.
• Enterococcal IE typically affects older males, with the genitourinary tract as the common infection source.
• Both healthy and damaged heart valves can be affected by enterococcal IE, often presenting subacutely.

Purpose of the Study:

• To outline the epidemiology, clinical presentation, diagnosis, and optimal treatment strategies for enterococcal infective endocarditis.
• To provide guidance on antibiotic selection, duration of therapy, and the role of surgical intervention.

Main Methods:

• Review of clinical criteria for IE diagnosis, emphasizing blood cultures.
• Description of recommended antibiotic regimens, including cell wall-active agents and aminoglycosides.
• Discussion of treatment duration based on patient factors and pathogen resistance.

Main Results:

• Diagnosis relies on clinical IE criteria combined with positive blood cultures.
• Optimal treatment involves parenteral cell wall-active agents plus streptomycin or gentamicin for susceptible strains.
• A 4-week course is often sufficient, while 6 weeks may be needed for complex cases or resistant strains.

Conclusions:

• Enterococcal IE requires specific therapeutic approaches based on pathogen susceptibility and clinical presentation.
• Standard treatment combined with valve replacement yields approximately 85% cure rates.
• Early diagnosis and appropriate management are crucial for successful outcomes in enterococcal infective endocarditis.