Severe chronic MR is associated with -: (A) H3, (B) H4, (C) Left atrial enlargement, (D) Atrial fibrillation
Answer is A. Even in people with severe MR, there may be no signs or symptoms until the left ventricle fails, an abnormal hea rhythm develops (atrial fibrillation), or pulmonary hypeension occurs. Pulmonary hypeension occurs when the blood pressure in the pulmonary aery is increased Ref Davidson 23rd edition pg 455