Hypertension: 中心收缩压无创评估新算法

2011-09-15 医学论坛网 医学论坛网

 来自奥地利维也纳技术大学的一项研究表明,一种采用基于肱动脉袖带波形记录的新型传递函数样算法,可作为中心动脉收缩压的实用评估方法。研究在2011年9月11日在线发表于《高血压》(Hypertension)杂志。   近期研究证实了中心动脉收缩压的预测价值。但目前中心动脉收缩压的非侵入性测量受到了一定局限,主要表现为对专用设备和训练有素操作者的需求。此外,动态和家庭中心血压的监测仍不能实现。一种新

 来自奥地利维也纳技术大学的一项研究表明,一种采用基于肱动脉袖带波形记录的新型传递函数样算法,可作为中心动脉收缩压的实用评估方法。研究在2011年9月11日在线发表于《高血压》(Hypertension)杂志。

  近期研究证实了中心动脉收缩压的预测价值。但目前中心动脉收缩压的非侵入性测量受到了一定局限,主要表现为对专用设备和训练有素操作者的需求。此外,动态和家庭中心血压的监测仍不能实现。一种新型算法的出现,使传统的自动示波血压监测评估中心收缩压变为可能。

  研究将适于可移动测量的规则示波袖带记录波形/传递函数样方法(ARCSolver算法)所计算的中心收缩压,与同时进行的高保真度侵入性测量,以及与采用有效设备、桡动脉张力测定法和广义传递函数进行非侵入性评估所计算的中心收缩压进行了比较。

  两项比较研究均显示了示波袖带中心收缩压测定与其他测定方法之间良好的一致性。其中,侵入性试验研究共纳入30例患者,示波袖带/ARCSolver算法和侵入性中心动脉压的平均差,采用侵入性肱动脉波形校准为3.0 mmHg(标准差为6.0 mmHg),而采用非侵入性臂动脉波形校准为-3.0 mmHg(标准差为 9.5 mmHg)。采用对照法(桡动脉张力测定/传递函数)和侵入性测量方法比较,所得结果相似。非侵入性试验研究共纳入111例患者,示波袖带 /ARCSolver算法和桡动脉张力测定法/传递函数测定中心动脉压的平均差为−0.5 mmHg(标准差为4.7 mmHg)。

  链接:

  Validation of a Brachial Cuff Based Method for Estimating Central Systolic Blood Pressure

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    2012-05-19 feather89
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    2012-06-07 lisa438
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