老年高血压合并颈动脉斑块与血压变异的相关性

目的 探讨老年高血压患者颈动脉斑块的发生与血压变异性（blood pressure variation,BPV）的相关性.方法 入选95例门急诊老年高血压患者,经颈动脉超声检查分为颈动脉斑块组（研究组）和无斑块组（对照组）,对2组患者进行24 h动态血压检测,计算并比较2组全天、白天以及夜间的平均血压、平均脉压、血压变异系数.结果 老年高血压合并颈动脉斑块组的白天收缩压变异系数大于对照组[（0.099 61±0.027 37） vs（0.084 04±0.176 01）,P＜0.01],白天舒张压变异系数大于对照组[（0.11449 ±0.039 42） vs （0.091 88±0.026 77）,P＜0.05].结论 老年高血压合并颈动脉斑块的发生与白天血压变异性有密切的相关性。

Correlation between Carotid Artery Plaque and Blood Pressure Variation in Elderly Patients with Hypertension

Objective To investigate the correlation between carotid plaque and blood pressure variation （BPV） in elderly patients with hypertension. Methods 95 elderly patients with hypertension were divided into plaque group and non-plaque group according to the results of carotid artery ultrasonography. All the patients were measured by ambulatory blood pressure monitoring. The mean blood pressure, mean pulse pressure, blood pressure variation coefficient of two groups were calculated and compared during whole day, daytime and nighttime. Results The systolic blood pressure coefficient of daytime of plaque group was higher than that of non-plaque group （0.09961 ± 0.02737 vs 0.08404 ± 0.17601, P 〈 0.01） . The diastolic blood pressure coefficient of daytime of plaque group was also higher than that of non-plaque group （0.11449 ±0.03942 vs 0.09188±0.02677, P 〈 0.05） Conclusion The occurrence of carotid artery plaque in elderly patients with hypertension is closely correlated to blood pressure coefficient of daytime.