We usually admit the patients 3 days prior to the surgery when we withhold
coumadin and start
heparinHeparin
Heparin sodium
Heparin sodium-sodium chloride once the INR is less than 2.0. After surgery we usually start the
heparinHeparin
Heparin sodium
Heparin sodium-sodium chloride 12 hours after the surgery and
coumadin shortly thereafter. The patient usually don't leave the hospital until their INR above 2.0. These are not hard and fast rules, and some physicians are more careful than others. To stop the coumadin 7 days prior to the surgery means that he will be without coverage for 3-4 days, which can be a problem with a mechanical aortic valve, and would certainly be a problem with a prosthetic mitral valve.