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目的探索血浆D-二聚体对发病24 h内的主动脉夹层的诊断价值。方法 2009年10月至2011年3月抽取发病24 h内的35例主动脉夹层患者静脉血,用免疫过滤胶体金显色反应法检测血浆D-二聚体。结果 D-二聚体检测值范围0.40~15.90μg/ml,平均(4.76±4.05)μg/ml。采用0.5μg/ml作为判定标准,33例升高,有2例<0.5μg/ml,均为B型主动脉夹层,增强CT表现为主动脉壁间血肿。结论 D-二聚体阴性可以作为发病24 h内的主动脉夹层的排除指标。
Objective To explore the diagnostic value of plasma D-dimer in aortic dissection within 24 h after onset. Methods Venous blood was collected from 35 patients with aortic dissection within 24 hours from October 2009 to March 2011, and plasma D-dimer was detected by immunochromatographic colloidal gold color reaction. Results D-dimer detection ranged from 0.40 to 15.90μg / ml with an average of (4.76 ± 4.05) μg / ml. Using 0.5μg / ml as a criterion, 33 cases were elevated, and 2 cases were less than 0.5μg / ml, all of which were type B aortic dissection. CT showed enhanced aortic interplastic hematoma. Conclusion D-dimer negative can be used as an indicator of aortic dissection within 24 hours of onset.