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应用超声检查评价高血压患者血管僵硬度与心功能的关系 被引量:5

Preliminary research of relationship between vascular stiffness and heart function in patients with hypertension using ultrasonography
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摘要 目的 应用超声检查、评价高血压患者动脉僵硬度和心功能的关系.方法 分别检测、计算高血压组(167例)与对照组(165例)的心功能和颈动脉血管僵硬度参数,并进行两组间比较.结果 二尖瓣口舒张早期血流速度峰值(E峰)与左心室后壁二尖瓣环舒张早期速度峰值(e峰)比值(E/e)、Tei指数高血压组分别为(10.92±3.14)和(0.58±0.13),对照组分别为(7.70±1.56)和(0.45±0.09),两组差异有统计学意义(均P<0.05);射血分数两组间差异无统计学意义(P>0.05).血管僵硬度参数β、压力应变弹性系数、脉搏波传导速度(PWVβ)和动脉顺应性高血压组分别为(11.0±5.2)、(172.6±83.8)kPa、(7.8±1.6)m/s和(0.6±0.2)mm2/kPa.对照组分别为(7.5±3.0)、(97.1±45.4)kPa、(5.9±1.3)m/s和(0.8±0.3)mm2/kPa,两组差异有统计学意义(均P<0.05).E/e与压力应变弹性系数和PWVβ呈正相关(γ分别为0.316和0.296,P<0.05),Tei指数与压力应变弹性系数、增大指数和PWVβ呈正相关(γ分别为0.278、0.300和0.323,P<0.05或P<0.01);射血分数与血管僵硬度参数无相关性.结论 高血压引起动脉僵硬度增高,心功能障碍;动脉硬化可作为早期心功能障碍预测指标之一. Objective To assess the relationship between arterial stiffness and heart function in patients with hypertension using ultrasonography. Methods A total of 167 patients with hypertension and 165 controls were enrolled, and the parameters of arterial stiffness and heart function were measured and calculated. The results were analyzed and compared. Results The ratio of peak early-diastolic mitral orifice flow velocity and peak early-diastolic mitral annular velocity in left ventricular posterior wall (E/e), and Tei index were significantly higher in hypertension group than in controls(E/e: 10.92±3.14 vs. 7.70 ±1.56, Teiindex: 0.58±0.13 vs. 0.45±0.09, both P<0.05), but there was no significant difference in ejection fraction (EF) between the two groups. In hypertension group, the parameters of arterial stiffness including β value, pressure-strain elastic modulus (Ep), pulse wave velocity (PWVβ) and arterial compliance were 11.0±5.2, (172.6±83.8)kPa, (7.8±1.6) m/s and (0.6±0.2) mm2/ kPa. In control group, the corresponding data were 7.5±3.0, (97.1±45.4) kPa, (5.9±1.3) m/s and (0.8±0.3) mm2/kPa. There were significant differences between the two groups (all P<0.05). The E/e was positively correlated with Ep and PWVβ(γ=0.316 and 0.296, both P<0.05). The Tei index was positively correlated with Ep,augmentation index (AI) and PWVβ(γ=0.278, 0.300 and 0.323, P<0.05-0.01). There was no significant correlation between EF and arterial stiffness. Conclusions The arterial stiffness and damage of heart function can result from hypertension. The arterial stiffness can be one of monitoring indexes for the heart function damage in early time.
出处 《中华老年医学杂志》 CAS CSCD 北大核心 2010年第6期448-451,共4页 Chinese Journal of Geriatrics
关键词 高血压 心脏功能试验 动脉粥样硬化 Hypertension Heart function tests Atherosclerosis
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参考文献12

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