Coexistence of Cerebral and Coronary Atherosclerosis in Acute Ischemic Cerebrovascular Disease Patients Registry

Inclusion Criteria: 1. Diagnosed as ischemic stroke or transient ischemic attack (TIA). 2. Less than 30 days after onset of ischemic stroke or TIA symptoms. 3. Extracranial or intracranial cerebral atherosclerosis confirmed by vascular ultrasound or CT angiograpgy or MR angiograpgy or digital substraction angiography. 4. Coronary atherosclerosis confirmed by CT angiograpgy or MR angiograpgy or digital substraction angiography; or with myocardial ischemia symptoms confirmed using electrocardiogram or echocardiography or cardiac MR; or with a history of percutaneous coronary intervention or coronary artery bypass graft. Exclusion Criteria: 1. With malignant tumors or poor organ functions or hematologic diseases, whose estimated life expectancy is less than 5 years. 2. Patients refuse to participate in the research.