Hello and welcome to HCM
are anti-coagulant drugs, the only difference is the half life of drug. warfarin has long half life so it has to be stopped 4-5 days prior to surgery. That's why you have shifted to Clexane which is lower molecular heparin
and has short half life. It has to be stopped one day prior to surgery. As your have advised by your surgeon.
This all procedure has to be performed because thin blood (due to anticoagulant
) bleeds a lot and almost impossible to stop during surgery. It can be danger to patient life. Surgery has to be performed in normal conditions. Further if you have any related queries than please consult your surgeon.
Best Wishes and have a successful surgery.