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主动脉夹层患者血清MMP-9浓度动态变化及其临床意义

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摘要 目的 初步探讨主动脉夹层(AD)患者血清基质金属蛋白酶9(MMP-9)浓度的动态变化情况及其在早期诊断和预后判断中的作用.方法 选择AD患者40例,其中10例行经股动脉插管腔内隔离术.所有AD患者均在确诊后即刻(确诊时间1~3h)和第6、12、24、72小时共5次采肘静脉血2ml,采用酶联免疫吸附法测定血清MMP-9浓度,同时检测40例健康体检者作对照.结果 AD患者血清MMP-9浓度[(62.58±11.86) ng/ml]明显高于健康体检者[(29.24±6.32)ng/ml](t=6.243,P=0.003),发病3h以内便可检测到较高浓度的MMP-9,6~12 h血清MMP-9浓度达到最高,24h后趋于平稳,到第3天时AD组血清MMP-9[(45.03±12.60)ng/ml]仍高于对照组(t=4.132,P=0.007).根据Stanford分型,将40例AD患者分为A型主动脉夹层组(A型组)和B型主动脉夹层组(B型组),结果两组在发病1~3h、6h、24h及72 h血清MMP-9浓度比较差异无统计学意义(P>0.05),但在12 h时A型组血清MMP-9浓度[(88.45±10.82) ng/ml]高于B型组[(72.55±8.37)ng/ml](t=3.511,P =0.042).经股动脉插管腔内隔离术前血清MMP-9浓度[(68.71±8.92) ng/ml]明显高于术后[(30.19 ±5.58)ng/ml](t=7.734,P=0.001),行手术治疗后患者血清MMP-9浓度迅速下降,术后24 h降至对照组水平.结论 AD患者发病后血清MMP-9浓度迅速升高,提示MMP-9与AD发病密切相关,动态监测血清MMP-9有望成为AD早期诊断和预后判断的重要方法.
出处 《中国医师杂志》 CAS 2014年第5期667-669,共3页 Journal of Chinese Physician
基金 广州市医药卫生科技项目(20131A011032)
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