JASN:强化降压引起的早期eGFR下降对心血管结局的影响

2019-07-23 xing.T MedSci原创

尽管强化收缩压降低导致早期eGFR下降更大,但没有证据表明由于强化收缩压降低而导致的eGFR下降减弱了这种干预对心血管事件或全因死亡率的有益作用。

收缩压干预试验(SPRINT)发现强化与标准收缩压控制(目标值分别<120mmHg或<140mmHg)可降低心血管疾病风险较高的患者死亡和主要心血管事件风险。然而,强化干预与eGFR的早期下降有关,并且这种早期下降的临床意义尚不清楚。 

近日,肾脏病领域权威杂志Journal of the American Society of Nephrology上发表一篇研究文章,在对SPRINT的事后分析中,研究人员将eGFR的变化定义为6个月时eGFR与基线相比的百分比变化,并进行了因果调解分析,将随机收缩压干预对SPRINT原发性心血管综合征和全因死亡率的总体影响分为间接影响(由eGFR百分比变化介导)和直接影响(通过除了eGFR百分比变化之外的途径介导)。 

强化降压组4270名参与者中约10.3%的受试者eGFR下降≥20%,而标准组4256名参与者中有4.4%(P<0.001)。在为期6个月的随访后,27849人次每年的随访期间共有591例心血管复合事件。干预对心血管复合事件的总效应、直接效应和间接效应的风险比分别为0.67(95%可信区间[95%CI]为0.56至0.78)、0.68(95%CI为0.57至0.79)以及0.99(95%CI为0.95至1.03)。全因死亡率结果相似。

尽管强化收缩压降低导致早期eGFR下降更大,但没有证据表明由于强化收缩压降低而导致的eGFR下降减弱了这种干预对心血管事件或全因死亡率的有益作用。 

原始出处

Srinivasan Beddhu,et al.Implications of Early Decline in eGFR due to Intensive BP Control for Cardiovascular Outcomes in SPRINT.JASN,2019. https://jasn.asnjournals.org/content/early/2019/07/18/ASN.2018121261

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    2020-03-09 chenhongpeng
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    2019-07-25 liuyiping

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