Good Day! Usually we would require a normal INR to check the capacity of the body to stop bleeding. The half-life of clexane
is 4.5 hours but we usually stop clexane 4-5 days prior to surgery. But this is case to case basis depending on the risk of the patient to develop another DVT or any adverse events when stopping Clexane. It would be a combined decision by your Surgeon and Cardiologist so i will suggest getting in touch with them prior to stopping your medication.