[Use of loading test to predict intraoperative heart failure in cardiosurgical patients]

The paper deals with the development of a procedure for using loading tests to predict the development of intraoperative heart failure in cardiosurgical patients. A volumetric loading test (limb elevation) was carried out to assess the mechanisms of responsible for the regulation of performance of the heart and the efficiency of its work. Cardiac output, end diastolic volume index, and ejection fraction were recorded and a hemodynamic response was assessed from their changes. Loading tests enabled the authors to identify 3 types of a hemodynamic response to a volumetric load. The incidence of postperfusion heart failure may be predicted depending on the identified type of a hemodynamic response to the volumetric load given at the very beginning of surgery.