valvular heart disease(noun)

heart disease caused by stenosis of the cardiac valves and obstructed blood flow or caused by degeneration and blood regurgitation

Heart valve disease

Valvular heart disease is any disease process involving one or more of the valves of the heart. Valve problems may be congenital or acquired. Treatment may be with medication but often involves valve repair or replacement. Specific situations include those where additional demands are made on the circulation, such as in pregnancy.