J Hypertens:吸烟者和非吸烟者外周动脉疾病的危险因素不同

2018-07-01 xing.T MedSci原创

由此可见,这些发现表明吸烟者和非吸烟者外周动脉疾病的危险因素可能不同,并进一步表明下肢动脉的动脉粥样硬化与吸烟者的局部血流动力学直接相关。

吸烟会增加外周动脉疾病的风险,但其机制尚未明确。近日,高血压领域权威杂志Journal of Hypertension上发表了一篇研究文章,该研究旨在评估吸烟者和非吸烟者血管重塑和硬度指标局部周壁张力(CWT)与腘窝和颈动脉斑块的传统危险因素之间的关系。

研究人员对225名个体(126名吸烟者和126名非吸烟者)进行了临床、实验室、腘窝和颈动脉超声分析。腘窝和颈动脉CWT指标分别在仰卧位和直立位以及仰卧位进行计算。

研究人员发现吸烟者腘窝动脉斑块比非吸烟者更常见(39 vs. 19%; P<0.001)。在吸烟者中,腘窝动脉斑块与传统血管危险因素的差异无关。在倾向得分调整模型中,腘窝动脉CWT指标与吸烟者局部斑块相关,但在不吸烟者中无关。峰值直立性CWT是显示与腘窝动脉斑块最显著相关的指标(β±标准误差=0.91±0.28; P=0.001)。与不吸烟者相比,局部的CWT指标也显示吸烟者腘窝动脉内膜中层厚度比不吸烟者更强。相比之下,有腘窝动脉斑块的不吸烟者更可能年龄较大、患有高血压糖尿病和血脂异常,并且不吸烟者的动脉顺应性降低。最后,在吸烟者中,颈动脉斑块与局部CWT之间并不独立相关。

由此可见,这些发现表明吸烟者和非吸烟者外周动脉疾病的危险因素可能不同,并进一步表明下肢动脉的动脉粥样硬化与吸烟者的局部血流动力学直接相关。

原始出处:

Marques, Edmilson R.et al. Distinct factors are related to lower limb atherosclerosis in smokers and nonsmokers.Journal of Hypertension. 2018. https://journals.lww.com/jhypertension/Abstract/publishahead/Distinct_factors_are_related_to_lower_limb.97429.aspx

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    2019-02-11 feather89
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    2018-07-01 1e0f8808m18(暂无匿称)

    吸烟有害健康.戒烟.

    0

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