NEJM:降压治疗未能明显降低中度危险人群的心血管事件发生率

2016-04-04 MedSci MedSci原创

降压治疗可降低收缩压≥160mmHg的高风险人群的心血管事件风险,但其作用在中度危险人群和稍低血压人群的作用尚不清楚。

降压治疗可降低收缩压≥160mmHg的高风险人群的心血管事件风险,但其作用在中度危险人群和稍低血压人群的作用尚不清楚。

在一个2x2阶梯对照试验中,我们将12705名无心血管疾病的中度危险人群随机分配到坎地沙坦16mg/天+氢氯噻嗪12.5mg/天或安慰剂组。一级复合终点是由心血管原因导致的死亡,非致死性心梗,非致死性卒中,二级复合终点是另加上血管重建,心塞和心脏骤停恢复。中位随访时间5.6年。

受试者的平均血压基线138.1/81.9 mm Hg;积极治疗组比安慰剂组血压降低了6.0/3.0 mm Hg。积极治疗组一级复合终点出现在260名受试者(4.1%) 中,安慰剂组279名 (4.4%) (风险比, 0.93; 95% [CI], 0.79 to 1.10; P=0.40);二级复合终点分别出现在 312 人(4.9%)和328人(5.2%), (风险比, 0.95; 95% CI, 0.81 to 1.11; P=0.51)。在预先设定的基于假设的三组中的收缩压最高一组中(收缩压>143.5 mm Hg),接受积极治疗后与安慰剂相比显著降低了一级和二级复合终点的发生率;在中间亚组和较低亚组中的效果相当(P=0.02 and P=0.009)。

结论:无心血管疾病的中度危险人群使用坎地沙坦16mg/天+氢氯噻嗪12.5mg/天与安慰剂组相比,未明显降低主要心血管事件的发生率。

原始出处:

Eva M. Lonn, M.D., Jackie Bosch, Ph.D., Patricio López-Jaramillo, et al,
Blood-Pressure Lowering in Intermediate-Risk Persons without Cardiovascular Disease,April 2, 2016DOI: 10.1056/NEJMoa1600175


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