Tricuspid regurgitation presents
with pansystolic murmur best heard at the lower
left sternal border
Disease may be congenital or caused by rheumatic fever, with a prominent
pulmonary hypertension. It may also occur in ischemic heart disease, cor
pulmonale or cardiomyopathy. It involves the widening of the tricuspid valve
so that blood regurgitates into the right ventricular from the right atrium
at atrial systole.