Circulation:运动后肌钙蛋白I升高提示未来死亡和心血管事件风险高

2019-09-11 MedSci MedSci原创

心肌肌钙蛋白血浓度高于99个百分位是诊断急性心肌损伤和梗死的关键指标。但肌钙蛋白浓度即使低于99百分位点对于患者和一般人群也具有预测预后不良的价值。在耐力运动后常见肌钙蛋白浓度升高,但其临床意义尚不明确。研究人员对725位受试者(61[54-69]岁)行走30-55km前后心肌肌钙蛋白I的水平进行检测,来研究长距离步行者运动后肌钙蛋白I浓度与临床结果之间的关系。受试者行走了8.3(7.9-9.3)

心肌肌钙蛋白血浓度高于99个百分位是诊断急性心肌损伤和梗死的关键指标。但肌钙蛋白浓度即使低于99百分位点对于患者和一般人群也具有预测预后不良的价值。在耐力运动后常见肌钙蛋白浓度升高,但其临床意义尚不明确。

研究人员对725位受试者(61[54-69]岁)行走30-55km前后心肌肌钙蛋白I的水平进行检测,来研究长距离步行者运动后肌钙蛋白I浓度与临床结果之间的关系。

受试者行走了8.3(7.9-9.3)个小时,最大心率为68±10%。9位(1%)受试者的基础肌钙蛋白I的浓度>0.040 μg/L。行走后,肌钙蛋白I的浓度有所增加(p<0.001),63位(9%)受试者运动后肌钙蛋白浓度> 0.040μg / L。在随访的43[23-77]个月中,62位(9%)受试者出现最终结点:29位死亡、33位发生主要心血管不良事件。与运动后肌钙蛋白I≤0.040μg/L的个体的7%相比,27%的运动后肌钙蛋白I>0.040μg/L的个体出现最终结点。经年龄、性别、心血管风险因素(高血压、高脂血症或糖尿病)、心血管疾病(心肌梗死卒中心衰)以及基础肌钙蛋白I浓度校正后,运动后肌钙蛋白I浓度升高个体的风险比为2.48(95% CI 1.29-4.78)。

运动诱导的肌钙蛋白I升高可独立预测老年的死亡率和心血管事件。运动引起的肌钙蛋白升高可能不是对运动的良性生理反应,而是未来死亡率和心血管事件的早期指标。

原始出处:

Vincent L. Aengevaeren, et al.Exercise-Induced Cardiac Troponin I Increase and Incident Mortality and Cardiovascular Events.Circulation. 2019;140:804–814

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    2019-09-12 146ee405m97暂无昵称

    维持机理是什么………

    0

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    2019-09-12 yjs木玉

    好好好好好好

    0

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    2019-09-12 Dr Z

    学习了

    0

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    2019-09-11 qingfengqishi5

    学习了,学习了

    0

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    2019-09-11 1209e435m98(暂无昵称)

    学习了,谢谢分享

    0

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