METHOD OF PREOPERATIVE AUTOBLOOD BANKING IN CARDIOSURGICAL PATIENTS Russian patent published in 2012 - IPC A61M16/12 A61M1/36 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, specifically cardiosurgery, and may be used in open heart surgery. For this purpose, 2 days before the surgery the intensity of an anaerobic threshold is determined by inhaling a hypoxic gas mixture during ergospirometry. The breathing process is accompanied with stepped decrease of the oxygen content in the mixture by 2% to achieve oxygen consumption and carbon dioxide release at each stage of stabilisation. If the intensity of the anaerobic threshold is more than 14% of oxygen, a degree of patient's cardiorespiratory adaptation is considered to be low, and autoblood is sampled in the amount of max. 5% of circulating blood. If the intensity of the anaerobic threshold is 10-14% of oxygen, a degree of patient's cardiorespiratory adaptation is considered to be moderate, and autoblood is sampled in the amount of max. 7% of circulating blood. If the intensity of the anaerobic threshold is less than 10% of oxygen, a degree of patient's cardiorespiratory adaptation is considered to be high, and autoblood is sampled in the amount of max. 10% of circulating blood.

EFFECT: method enables the effective complex preparation of the patient for the open heart surgeries, the adequate hemotransfusion therapy ensured by the precise determination of patient's adaptation to hypoxia.

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