| Popis: |
Coronary artery embolism is an uncommon cause of acute myocardial infarction (AMI), while antiphospholipid syndrome (APS) is one of the rare reasons due to premature AMI. Coronary angiography can diagnose coronary artery embolism, and the positive serum of aPLs may infirm APS. We report a 32 years old man with ST-elevation AMI, without any high-risk factors of coronary artery disease. Coronary thrombosis was founded in the M1 sub-coronary of Left Anterior Descending (LAD), and the coronary artery was recanalized, the artery was not obstructive, Thrombolysis in Myocardial Infarction (TIMI) grade was III. He became shortness after exercise, the echocardiography showed his left ventricular was enlarged and LVEF was decreased. High titers of an anticardiolipin antibody (aCL) IgG of 46U (positive >20.0U), and it was positive at two dosages with an interval greater than 12 weeks. But there was no evidence of any other serum markers suggesting other associated pathologies such as SLE, so the primary APS was diagnosed. We gave him anticoagulation with warfarin and a single antiplatelet with Aspirin, the target INR was 2.5-3.0. Meanwhile, statins and hydroxychloroquine (HCQ) were all prescribed. After 6-months follow-up, his heart failure symptoms were disappeared, the LVDd and LVEF were all normal, the titer was decreased to nearly normal. In clinical background, young AMI without traditional high-risk factors of CAD, we should suspect APS. Therefore, we believed that HCQ may low thrombotic rate, down-trending aPLs titer, and prevent thrombotic recurrences in patients with primary antiphospholipid syndrome. |
