The heart is gradually increasing in size and cardiac function is correspondingly decreasing. Now the end-diastolic diameter of the left ventricle has exceeded 70 mm, the end-systolic diameter is greater than 50 mm, the ejection fraction is lower than normal, and the aneurysmal dilatation of the ascending aorta reaches more than 50 mm. Although there are no clear symptoms yet, the best treatment option in terms of principle is surgical replacement of the artificial valve or simultaneous aortoplasty. If treated conservatively be sure to review the ultrasound and see your doctor at least once a year. Commonly used drugs for conservative treatment are cardiac diuretics, such as digoxin and dihydrocortisone, and some angiotensin converting enzyme inhibitors can also be used under the guidance of your doctor. It is not recommended that you wait too long. The risk of surgery for further cardiac enlargement or LVEF below 50% is greatly increased.