[Rheography of extracorporeal circulation: verification of method and calibration of the monitor]. / Reografiia iskusstvennogo krovoobrashcheniia: proverka metoda i kalibrovka monitora.

Cardiopulmonary bypass as a reference flow model for impedance cardiography monitoring is described in 34 children during open-heart surgery. Such an approach not only proved the accuracy and precision of impedance cardiac output measurement, but also gave a possibility to make intra-operative calibration of any cardiac output monitor which maintains its accuracy during the post-bypass period.

[Thermodilution and rheography: the coincidence and reproducibility of results]. / Termodiliutsiia i reografiia: sovpadenie i vosproizvodimost' rezul'tatov.

A comparison of the pulmonary artery thermodilution and tetrapolar impedance cardiography of cardiac output measurements based on 312 dual determinations has shown a good general coincidence, but better reproducibility of the impedance cardiography data and more evident character of the errors and artifacts. The authors' analysis of the mechanisms and causes of such phenomena is based both on their own conclusions and on a wide spectrum of the data of previous investigations.

[Rheographic monitoring of intraoperative hemodynamics]. / Reograficheskii monitoring intraoperatsionnoi gemodinamiki.

The authors summed up the experiences with using noninvasive monitoring of hemodynamics during 420 operations. The method was based on computed procession in the real time of the integral rheogram of the body. The advantages, shortcomings and technological details of the method were analyzed.