METHOD FOR PREOPERATIONAL AUTOBLOOD SAMPLING IN CARDIOSURGICAL PATIENTS Russian patent published in 2006 - IPC A61M1/36 A01N1/02 G01N33/49 A61K35/14 A61P41/00 

FIELD: medicine, cardiosurgery.

SUBSTANCE: the present innovation deals with complex procedures for carrying out open-heart operations associated with high blood losses and considerable requirement for blood-substitution therapy. It is necessary to carry out preoperational autoblood sampling in cardiosurgical patients due to a single exfusion of 5-10% volume of patient's circulating blood and its conservation, moreover, 1-2 d before autoblood sampling it is necessary to conduct total hypoxic sample, detect the values of oxygen balance and lactate concentration in blood serum and at its values being SpO₂>85%, SvO₂>60%, O₂EI<30 and the absence of lactate concentration growth at the background of 40-min-long respiration with hypoxic gaseous mixture with 10%-content of oxygen one should consider tolerance to hypoxia to be high and sample autoblood at the quantity of 10% against total volume of circulating blood; at physiological ability of a patient to breathe for 40 min with hypoxic gaseous mixture with 12%-content of oxygen it is possible to consider tolerance to hypoxia to be average and sample autoblood at the quantity being not more than 7% against the volume of circulating blood, and at physiological ability of a patient to breathe with hypoxic gaseous mixture only at the content of oxygen being under 14% tolerance to hypoxia should be stated to be low and, thus, one should sample not more than 5% against the volume of circulating blood. The innovation decreases postoperational complications, increases efficiency of hemotransfusional therapy due to individualized approach for detecting optimal quantity of autoblood sampled.

EFFECT: higher efficiency of sampling.

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