24th May 2025

A 58-year-old male is referred to the cardiology team with bilateral pedal oedema, abdominal distension, exertional dyspnoea and weight gain.

A 58-year-old male is referred to the cardiology team with bilateral pedal oedema, abdominal distension, exertional dyspnoea and weight gain. A chest x-ray reveals cardiomegaly. He reveals he has been injecting heroin for two years. An urgent transthoracic echocardiogram reveals a regurgitant jet flow across a particular valve. You suspect infective endocarditis. Given the history mentioned, which cardiac valve is most likely to have been affected?

Select the SINGLE most appropriate option from the list below. Select ONE option only.