murmurs and valves

Question 1

bio valves lifespan of 10yr
mechancial valves lifespan of 20r but do these patients need to be on lifelong

Answer 1

warfarin target INR of 3
A click replaces S1 for metallic mitral valve
A click replaces S2 for metallic aortic valve

Question 2

what is cor pulmonale

Answer 2

Cor pulmonale is right sided heart failure caused by respiratory disease. The increased pressure and resistance in the pulmonary arteries (pulmonary hypertension) results in the right ventricle being unable to effectively pump blood out of the ventricle and into the pulmonary arteries. This leads to back pressure of blood in the right atrium, the vena cava and the systemic venous system.