Hypertension. 2014 Aug;64(2):240-6. doi: 10.1161/HYPERTENSIONAHA.114.03304.
Brachial-ankle pulse wave velocity (baPWV) has been proposed as a simple, noninvasive method for estimating arterial stiffness. Although high baPWV was predictive of cardiovascular mortality and morbidity among general population, its predictive value for mortality in patients with acute stroke is unknown. We evaluated the prognostic value of baPWV in 1765 patients who had been admitted for acute ischemic stroke and had completed measurement of baPWV during admission. Primary outcomes were all-cause mortality and vascular mortality (death because of heart diseases, cerebrovascular diseases, or diseases of arteries, arterioles, and capillaries, determined according to the International Classification of Diseases) after stroke. During a mean follow-up period of 3.33±1.57 years, there were 228 all-cause deaths, including 143 vascular deaths. In multivariate Cox hazard regression, patients in the highest tertile of baPWV (>22.63 m/s) were at an increased risk for both all-cause death (adjusted hazard ratio, 1.97; 95% confidence interval, 1.25–3.08) and vascular death (adjusted hazard ratio, 2.39; 95% confidence interval, 1.33–4.29) compared with the lowest tertile (<17.79 m/s). This study suggested that measurement of baPWV during the acute phase of stroke might be useful in identifying patients at a higher risk for mortality.
肱踝脉搏波速度(baPWV)已被提议作为一种简单、无创的方法来评估动脉僵硬度。虽然高 baPWV 与一般人群的心血管死亡率和发病率相关,但它对急性中风患者死亡率的预测价值尚不清楚。我们评估了 1765 名急性缺血性中风患者的 baPWV 预后价值,这些患者在入院期间完成了 baPWV 测量。主要结局是中风后全因死亡率和血管死亡率(由于心脏病、脑血管病或动脉、小动脉和毛细血管疾病导致的死亡,根据国际疾病分类确定)。在平均 3.33±1.57 年的随访期间,共有 228 例全因死亡,包括 143 例血管死亡。在多变量 Cox 风险回归中,baPWV 最高三分位(>22.63 m/s)的患者全因死亡(调整后的危险比,1.97;95%置信区间,1.25–3.08)和血管死亡(调整后的危险比,2.39;95%置信区间,1.33–4.29)的风险均高于最低三分位(<17.79 m/s)。这项研究表明,在中风急性期测量 baPWV 可能有助于识别死亡率较高的患者。