MCQ IN MEDICINE

Detailed explanation-1: -Rheumatic heart disease most commonly affects the mitral valve (which has only two leaflets; Figure 2) or the aortic valve, but any valve can be affected, and more than one can be involved.

Detailed explanation-2: -Pulmonary was the least common valve to be involved in RHD (0.04%); all cases had associated MS.

Detailed explanation-3: -Acute rheumatic heart disease often produces a pancarditis characterized by endocarditis, myocarditis, and pericarditis. Endocarditis is manifested as valve insufficiency. The mitral valve is most commonly and severely affected in most cases of rheumatic heart disease, followed by the aortic valve (20%-30%).