1. Improve the lifestyle, avoid strenuous exercise, emotional fluctuations and other triggering factors. 2. It is recommended to take warfarin orally for three months. During the medication period, patients should check the INR (PT international standard ratio) and maintain the INR between 2.0 and 2.5. After discharge from the hospital, the INR should be measured every other day after taking the medication, and the dosage of the medication should be adjusted under the guidance of the outpatient doctor after close outpatient review. Pay attention to bleeding signs such as gum bleeding, subcutaneous bruises, red urine, etc. If there is any abnormality, please consult the doctor in time. Follow up in our outpatient clinic three months after taking the medicine to decide whether to stop using it. 3.Regular monitoring of blood pressure, heart rate, outpatient regular review of blood lipids, blood glucose, liver and kidney function, electrolytes, blood routine, etc., appropriate adjustment of drugs. 4.Take the medication on time and come to the hospital for review one month, three months and six months after the operation. 5.Take ketorolac for three months, and pay attention to recheck electrocardiogram, liver and kidney function, thyroid function and chest X-ray. 6.If there is any discomfort, please consult the doctor immediately.