Maciel R E, Bittencourt L A, Carvalhal S D, De Paiva C E
Rev Bras Pesqui Med Biol. 1976 Jan-Feb;9(1):7-11.
The authors show the possibility of the establishment of blood flow from the right ventricle to the pulmonary artery during the period of ventricular diastole, through experimental models mimetizing hemodynamic patterns described in the literature for certain cardiopathies. These models consisted of experimental hypodiastoly, associated or not with right ventricle hyposystoly. The detection of the existence or not of blood flow in the several phases of the cardiac cycle, was made recording the variations of the electrical impedance of the blood.
作者通过模拟文献中描述的某些心脏病血流动力学模式的实验模型，展示了在心室舒张期从右心室到肺动脉建立血流的可能性。这些模型包括实验性舒张期缩短，伴或不伴有右心室收缩功能减退。通过记录血液电阻抗的变化，检测心动周期各阶段血流是否存在。
