Frequently Asked Questions on Topics for the Entire Family, for your health and well being and more! FAQs - Deep Vein Thrombosis Which doctor takes long term care of patients with Deep vein thrombosis or DVT? Does DVT recur? Is warfarin safe in pregnancy? Which drug is safe during pregnancy? How long should I need anti coagulant therapy? If I have had a mitral or aortic valve surgery how long do I need to take warfarin? What is INR? If there is a subject you think we need in the FAQ section, please contact us and let us know!