Doletskiĭ A S, Timoshchenko O A
Anesteziol Reanimatol. 1993 Nov-Dec(6):35-8.
A postural volume-load test (PVLT) is an informative technique for the evaluation of the function and identification of latent disturbances of cardiovascular work which are difficult to diagnose using conventional techniques. It is a noninvasive procedure, analogous in its results to a more complex infusion volume-load test. In PVLT cardiac pump function is mainly assessed, as the basic test criterion is the direction of stroke volume changes. If cardiac pump function is intact, one can predict the response to the volume load and optimal conditions for infusion therapy are created. Negative, as well as weakly expressed positive reaction or its absence during PVLT indicate the presence of heart failure or the danger of its onset and require the use of drugs with positive inotropic effect (sympathomimetics, glycosides). In patients with heart failure PVLT makes it possible to control the efficacy of the therapy conducted. Test simplicity and sufficient informative value makes advisable its use in all critical patients of intensive care units, as well as in patients who are to be exposed to surgery threatened with great blood loss.
体位容量负荷试验（PVLT）是一种用于评估心血管功能及识别心血管工作潜在紊乱的有益技术，而这些紊乱使用传统技术难以诊断。它是一种非侵入性检查，其结果类似于更复杂的输液容量负荷试验。在PVLT中，主要评估心脏泵功能，因为基本测试标准是每搏输出量变化的方向。如果心脏泵功能完好，就可以预测对容量负荷的反应，并为输液治疗创造最佳条件。PVLT期间出现阴性反应、弱阳性反应或无反应，表明存在心力衰竭或有发生心力衰竭的危险，需要使用具有正性肌力作用的药物（拟交感神经药、强心苷）。对于心力衰竭患者，PVLT能够控制所进行治疗的疗效。该试验操作简单且信息价值充分，因此建议在重症监护病房的所有危重症患者以及面临大出血风险的手术患者中使用。
