In suspected infective endocarditis, the initial target of echocardiography is to identify, characterize, and localize which finding?

• A. Valvular vegetation
• B. Pericardial effusion
• C. Coronary artery disease
• D. Atrial septal defect

Answer: (A)

In suspected infective endocarditis, the initial aim of echocardiography is to identify valvular vegetation. These are oscillating masses of bacteria, fibrin, and inflammatory cells that attach to valve leaflets or prosthetic material. Detecting their presence and assessing their size, location, and mobility helps confirm the diagnosis and guides management, including the need for antibiotics and consideration of surgical intervention if there is significant regurgitation or risk of embolization. Transesophageal echocardiography is particularly sensitive for visualize vegetations, especially on the mitral and aortic valves or prosthetic valves, compared with transthoracic echo. Pericardial effusion, coronary artery disease, and atrial septal defects are not the primary targets for diagnosing infectious endocarditis, though they may be encountered separately.