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心踝血管指数和踝肱指数在下肢动脉闭塞介入治疗中的应用价值

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[摘要] 目的 探讨心踝血管指数(Cardio—Ankle Vascular Index,CAVI)和踝肱指数(Ankle—Brachial Index,ABI)在下肢动脉闭塞性病变(lower limbs arterial occlusive disease,LAOD)介入治疗前评估和治疗后疗效评价中的应用价值及指标间的相关性。 方法 2010年1~12月在我院行介入治疗的LAOD患者35例,所有患者均符合《下肢动脉粥样硬化性疾病诊治中国专家建议(2007)》对LAOD的诊断标准,应用血压脉搏测量装置检测CAVI和ABI作为治疗前评估和治疗后疗效的评价及随访的指标。 结果 CAVI和ABI在介入治疗后和治疗前分别为(5.20±2.85)、(6.65±2.78)(P < 0.05);(0.35±0.18)、(0.85±0.13)(P﹤0.05)。介入治疗前CAVI与ABI相关分析显示呈正相关(r = 0.648,P < 0.05),介入治疗后CAVI与ABI无明显相关性。 结论 CAVI和ABI测定在LAOD介入治疗前评估和治疗后疗效评价中有较高的应用价值。

[关键词] 心踝血管指数;踝肱指数;动脉僵硬度;动脉粥样硬化

[中图分类号] R654.3 [文献标识码] B [文章编号] 1673—9701(2012)25—0028—02

The clinical value of cardio—ankle vascular index (CAVI) and ankle brachial index(ABI) in evaluation on therapeutic efficacy to lower limbs arterial occlusive disease

YIN Bo1 HUANG Guangming2 ZHANG Hongxia2 ZHANG Juan1 LIU Weifeng1 ZHANG Hui1 ZHANG Xiuming1 WANG Jun1

1.Department of Cardiology,Zibo City Central Hospital in Shandong Province,Zibo 255036,China;2.Department of Interventional Radiology,Zibo City Central Hospital in Shandong Province,Zibo 255036,China

[Abstract] Objective To explore clinical value of cardio—ankle vascular index (CAVI) and ankle brachial index (ABI) in evaluation on therapeutic efficacy to lower limbs arterial occlusive disease (LAOD). Methods 30 patients of LAOD included in our study. Automatic blood pressure and pulse measurement device were used to measure CAVI and ABI as parameters to reflect therapeutic efficacy with drugs and interventional treatment. Results In cornparison to pre—therapy,CAVI and ABI were higher in post—therapy (5.20±2.85 vs 6.65±2.78,P < 0.05;0.35±0.18 vs 0.85±0.13,P﹤0.05). Relationship analysis results demonstrated that in pre—therapy CAVI closely related to ABI (r = 0.648,P < 0.05) and they had no significantly relationship in post—therapy. Conclusion CAVI and ABI were closely related to the extent of lower extremity obstruction and had high value in evaluation on therapeutic efficacy.

[Key words] Cardio—ankle vascular index;Ankle—Brachial Index;Arterial stiffness;Atherosclerosis

动脉粥样硬化是全身系统性疾病,它不仅发生在冠状动脉、脑部动脉,也常发生在下肢等外周大动脉。下肢动脉闭塞性病变(lower limbs arterial occlusive disease,LAOD)作为冠状动脉粥样硬化性心脏病(coronary heart disease,CHD)的等危症,与心血管事件的发生和死亡密切相关。LAOD患者中严重肢体缺血患者的1年病死率约为25%,截肢者可高达45%[1]。LAOD介入治疗前对病情的准确评估和治疗后疗效的评价与随访极为重要。传统治疗前后评估方法主要通过体表或血管内超声、CT、MRI及数字减影血管造影(DSA)等手段,但存在许多不足之处。因此,用于评估的动脉粥样硬化病变进程的无创技术得到了迅猛发展并成为研究的热点。新一代的检测动脉硬化程度和动脉阻塞的检测设备建立在动脉脉搏谱理论基础上,有助于全面推广动脉疾病的早期检测。心踝血管指数(cardio—ankle vascular index,CAVI)和踝肱指数(ankle—brachial index,ABI)是从不同的角度来评估动脉硬化两个最常用的指数。但是目前的研究主要集中在动脉硬化早期筛查方面,用于LAOD介入治疗前评估和治疗后疗效的评价及随访的报道极少。尤其是综合应用这两个指标进行LAOD疗效评估,国内外未见文献报道。本研究总结我院35例LAOD患者,探讨CAVI和ABI在LAOD治疗前后评价中的价值及指标间的相关性,现报道如下。