Antiplatelet Therapy for AIS Patients With Thrombocytopenia

Inclusion Criteria: * Age \> 18 years old * Acute ischemic stroke or transient ischemic attack with onset \< 7 days * The last blood routine test before enrollment indicates platelet count \< 100 x 10\^9 and \> 30 x 10\^9 Exclusion Criteria: * Chronic renal dysfunction (GFR \< 30ml/min) or severe hepatic injury * Indications for anticoagulation therapy, e.g. atrial fibrillation * Myocardial infarction within 6 months before enrollment or received percutaneous coronary intervention in the past * Have or plan to receive CEA or CAS in the following 3 months * Life expectancy less than 1 year * Plan to receive invasive surgery in the following 3 months and have high risk of uncontrollable bleeding * Pregnant or lactating women * Individuals identified by researchers as unsuitable for participation in the study due to other reasons.