What are common symptoms of a leaky heart valve?

Insufficiency. Leaky heart valves produce volume loads on the heart. They may produce abnormal rhythms early. As the heart enlarges the back pressure builds up in the lungs and shortness of breath and decreased exercise capacity is seen. We try and repair or replace these valves when the heart enlargement is seen to be progressing.
Shortness of breath. The principal symptom is shortness of breath. Other symptoms might included fatigue, swollen ankles, cough.