Patient: Description of condition (onset, main symptoms, hospital visited, etc.): It has been four and a half months since you operated on me personally on February 28, and I did not see you at the hospital. So on the Internet to consult how to continue to take medication (warfarin). Blood test lnr on June 28 1.537 on June 5 2.05. The outpatient doctor said: can stop taking (warfarin) or reduce the dosage. It is best to listen to your advice. I am taking one (warfarin) and one (aspirin) a day because I have not seen you. Please advise if this is appropriate. Thank you. I am recovering well from the surgery. How to take the medication in the future and when to visit the cardiovascular surgery department of Shanghai Yuanda Cardiothoracic Hospital Chen Xiaozhong