JAHA:非血小板血栓素生成的连续测定对心脏手术后长期结局的不同影响

2017-11-09 xiangting MedSci原创

冠脉旁路移植手术后的长期非血小板血栓素生成是5年不良结局包括死亡的一个新危险因素。

可能源自非血小板的全身血栓素生成,不能被标准的阿司匹林疗法抑制,增加了心血管疾病患者动脉血栓和死亡的风险。在RIGOR(降低移植物堵塞率)研究中,冠脉旁路移植术后早期的非血小板血栓素生成比晚期更多,尽管只有后者与移植失败相关,这项研究假设在非血小板血栓素生成和长期临床结局之间存在类似的差异相关性。

对290名RIGOR受试者的5年结局数据进行分析,这些受试者服用阿司匹林抑制血小板血栓素的生成。使用多变量模型来定义尿血栓素代谢物的相对预计值,测量手术后3天与6个月复合终点死亡、心肌梗死血管重建或仅卒中、死亡的11-脱氢血栓素B2(11-dhTXB 2)。手术后3天测量的11-dhTXB2不能独立预测结局。而与较低值比较,术后6个月测量的11-dhTXB2> 450pg/mg肌酐可以预测5年的复合终点(调整后的危险比为1.79; P= 0.02)和死亡(调整危险比,2.90; P = 0.01)。额外的模型显示术后早期的11-dhTXB2与几种炎症标志物相关,而6个月后测量的11-dhTXB2与氧化应激高度相关。

冠脉旁路移植手术后的长期非血小板血栓素生成是5年不良结局包括死亡的一个新危险因素。相反,术后早期的非血小板血栓素生成似乎主要由炎症驱动,并不能独立预测长期临床结局。

原始出处:
Nikolaos Kakouros, Tyler J. Gluckman, John V. Conte, et al. Differential Impact of Serial Measurement of Nonplatelet Thromboxane Generation on Long‐Term Outcome After Cardiac Surgery. JAHA. 02 November 2017. 

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    2017-11-11 zhaohui6731
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