A 72yo man has been advised to have antibiotic prophylaxis for some years now before dental treatment. He has never experienced chest pain. Three weeks ago, he noticed breathlessness on exertion and for one week he had orthopnea. His pulse is normal. What is the most probable diagnosis?
- a. Aortic regurgitation
- b. Ischemic mitral regurgitation
- c. Mitral valve prolapse
- d. Pulmonary stenosis
- e. Mitral valve stenosis
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