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将与动脉脉波测定装置相连的袖带,缠绕于上臂,借助袖带充气给袖带部位的动脉加压。当袖带内压从收缩压水平缓缓下降时,可以记录到一系列逐渐变化着的动脉脉波,与以前在动物动脉外直接描记到的脉波群相似。用“脉波分析法”可以获得袖带部位的收缩压和舒张压值。与柯氏音法比较,在105次体力负荷前后的12名健康人测定中,收缩压与舒张压的相关系数分别为0.98和0.97。分析“0 波”,尚可获得容积变化的信息,并能测得同时发生的压力变化值。进而可将此两值代入动脉顺应指数(I_C)式。20名正常人87次测定的I_C值,远高于20名高血压患者 78次测定的结果(P<0.001)。I_C值的降低与眼底动脉硬化的程度有关。此方法具有简易、无创伤的优点。
The cuff attached to the arterial pulse wave measuring device is wound around the upper arm and inflated to the cuff by the cuff to pressurize the artery. As the cuff pressure gradually decreases from the systolic pressure level, a series of gradually varying arterial pulses can be recorded, similar to those previously recorded directly outside the animal’s arteries. With “pulse wave analysis” can be obtained at the cuff site systolic and diastolic blood pressure values. Compared with Korotkoff’s sound method, the correlation coefficient of systolic blood pressure and diastolic blood pressure were 0.98 and 0.97 respectively in 12 healthy volunteers before and after 105 times of physical load. Analysis of “0 wave” is still available volume changes in the information, and can measure the value of pressure changes occur simultaneously. Then these two values can be substituted into the arterial compliance index (I_C) type. The I_C values of 87 normal subjects were significantly higher than those of 20 hypertensive subjects (P <0.001). The decrease of I_C is related to the degree of fundus atherosclerosis. This method has the advantages of simplicity, non-invasive.