无糖尿病史者糖化血红蛋白高也有预测价值!阜外医院冠脉介入研究

2020-03-03 循环L 中国循环杂志

阜外医院高立建、王欢欢等研究表明,在接受 PCI 的无糖尿病病史的冠心病患者中,入院糖化血红蛋白(HbA1c)水平是 2 年主要不良心血管事件(MACE)发生的独立预测因子。研究者指出,在行 PCI 的无糖尿病病史患者中,常规应用 HbA1c 来识别有事件风险的患者具有重要价值。研究2 年随访结果显示,HbA1c 5.7%~6.4% 组和 HbA1c ≥ 6.5%组的 MACE 发生率显着高于 H

阜外医院高立建、王欢欢等研究表明,在接受 PCI 的无糖尿病病史的冠心病患者中,入院糖化血红蛋白(HbA1c)水平是 2 年主要不良心血管事件(MACE)发生的独立预测因子。

研究者指出,在行 PCI 的无糖尿病病史患者中,常规应用 HbA1c 来识别有事件风险的患者具有重要价值。

研究2 年随访结果显示,HbA1c 5.7%~6.4% 组和 HbA1c ≥ 6.5%组的 MACE 发生率显着高于 HbA1c<5.7% 组,其中以再次血运重建风险增高最为显着。HbA1c 升高是 MACE的独立危险因素;

研究者推测,其可能的机制如下:

(1)胰岛素抵抗和高血糖均可导致内皮功能紊乱,影响血管舒张和血小板功能,促进泡沫细胞及支架内新生动脉粥样硬化的形成与发展;

(2)高血糖诱导细胞因子与炎症因子的表达,诱导促进再狭窄的生长因子的生成、平滑肌细胞增殖和细胞外基质产生,最终导致内膜增生和再狭窄;

(3)在血管成形术引起的动脉损伤部位,特别是在再狭窄病变中,糖代谢异

常患者的内膜增生更严重。

这项研究共纳入了6944例行PCI的无糖尿病病史的冠心病患者。其中,HbA1c<5.7%的患者有1 302 例;HbA1c 5.7%~6.4%者 4 344 例;HbA1c ≥ 6.5% 者1 298 例。

来源:王欢欢,贾斯达,刘越,等.入院糖化血红蛋白水平对行经皮冠状动脉介入治疗的无糖尿病病史患者远期预后的影响. 2020,35: 142-148.

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