Bartolo M, Antignani P L, Di Folca A, Pittorino L
G Ital Cardiol. 1982;12(5):384-7.
Measurement of venous pressure by means of the Doppler method applied to the posterior tibial vein and to the internal and external saphenous veins is subject to error which depends on the observer's technique. We have therefore sought to ascertain whether and how differences in measurement techniques could affect the results of venous pressure determination in 50 subjects. We have observed that: --Measured pressure are higher when the duration of the test is prolonged, probably because the cuff remains inflated too long. --Of several consecutive determinations, the first and second yield generally higher values, that decrease and remain stable thereafter through the 5th measurement, following the initial loss of venous tone. --Venous pressure is lower as the measurement site is moved more proximally, as predicted by the expected pressure gradient along the venous circulation; the decrease could also be affected by local changes of vein compliance.
通过多普勒方法测量胫后静脉以及大隐静脉和小隐静脉的静脉压容易出现误差，这种误差取决于观察者的技术。因此，我们试图确定测量技术的差异是否以及如何影响50名受试者的静脉压测定结果。我们观察到：——当测试持续时间延长时，测量的压力会更高，这可能是因为袖带充气时间过长。——在连续几次测定中，第一次和第二次测定通常会得出较高的值，在最初静脉张力丧失后，这些值会下降，并在第5次测量之前保持稳定。——正如沿静脉循环的预期压力梯度所预测的那样，随着测量部位向近端移动，静脉压会降低；这种降低也可能受到静脉顺应性局部变化的影响。
