Isolated Pulmonic Valve Endocarditis: A Rare Clinical Entity.

Area of Science:

• Cardiology
• Infectious Diseases
• Medical Diagnostics

Background:

• Pulmonic valve endocarditis (PVE) is a rare form of infective endocarditis, accounting for 1-2% of all cases.
• Diagnosis of PVE can be challenging, especially in culture-negative scenarios.

Observation:

• A 52-year-old male presented with edema, fever, dyspnea, and signs of heart failure and glomerulonephritis.
• Investigations revealed negative blood cultures, cardiomegaly, pleural effusion, and echocardiographic evidence of pulmonic valve vegetation.
• The patient met modified Duke's criteria for PVE with one major and three minor criteria.

Findings:

• Modified Duke's criteria enabled a definitive diagnosis of culture-negative PVE.
• The patient showed significant clinical improvement with intravenous antibiotics and diuretics.
• A 6-week course of parenteral antibiotics was completed for treatment.

Implications:

• Modified Duke's criteria are vital for diagnosing and guiding empiric treatment of infective endocarditis when bacterial cultures are negative.
• This case underscores the importance of utilizing comprehensive diagnostic criteria in rare cardiac infections.
• Early and accurate diagnosis using modified Duke's criteria can lead to effective management and improved patient outcomes.