阜外医院邱洪等研究称,炎症和心功能差与支架血栓形成有关

2020-02-13 xunhuan 中国循环杂志

经皮冠脉介入治疗的出现使冠心病的治疗发生了革命性变化,然而,部分患者的临床获益会因支架内血栓形成和支架内再狭窄等并发症而削弱。据报道,支架置入1 年时支架内血栓形成的发生率在2%以下,以每年0.2%~0.4%的速率递增,支架内再狭窄的发生率约为5%~10%。阜外医院邱洪、郑剑峰等人发现,中性粒细胞/淋巴细胞比值较高、N末端B型利钠肽原(NT-proBNP)>300 pg/ml 与晚期/极晚期

经皮冠脉介入治疗的出现使冠心病的治疗发生了革命性变化,然而,部分患者的临床获益会因支架内血栓形成和支架内再狭窄等并发症而削弱。

据报道,支架置入1 年时支架内血栓形成的发生率在2%以下,以每年0.2%~0.4%的速率递增,支架内再狭窄的发生率约为5%~10%。

阜外医院邱洪、郑剑峰等人发现,中性粒细胞/淋巴细胞比值较高、N末端B型利钠肽原(NT-proBNP)>300 pg/ml 与晚期/极晚期支架内血栓形成发生独立相关。

中性粒细胞/淋巴细胞比值较高、N末端B型利钠肽原(NT-proBNP)>300 pg/ml的患者晚期/极晚期支架内血栓形成的风险分别增加31%(OR=1.31)和14.5倍(OR=15.5)。

研究者指出,晚期/极晚期支架内血栓形成患者的中性粒细胞/淋巴细胞比值升高,可能与支架节段内炎症活动水平升高和机体在急性冠状动脉综合征中的高凝状态有关,这也与发生不良事件的自然进展的动脉粥样硬化疾病状态相似。

NT-proBNP已被证实是诊断筛查心力衰竭或心脏收缩功能异常患者的非常有用的手段。由于炎症和急性应激等因素的作用,晚期/极晚期支架内血栓形成患者中,NTproBNP升高可能与这类患者随后可能出现的心功能异常息息相关。

该研究还显示,与支架内再狭窄患者相比,支架内血栓形成患者以ST段抬高型心肌梗死为主,陈旧性心肌梗死患者和有停服抗血小板药物病史的患者比例更高,介入治疗次数更多,住院时间更长。

该研究连续入选367 例患者,包括经冠脉造影证实的70例明确/可能的晚期/极晚期支架内血栓形成患者和297 例支架内再狭窄患者。所有患者均在阜外医院接受罪犯病变支架置入手术且再次入院接受相应靶病变的治疗。

来源:郑剑峰,田原,王勇,等. 晚期/ 极晚期支架内血栓与支架内再狭窄患者的临床特征及相关因素分析. 中国循环杂志, 2019, 34: 968-973.

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