METHOD FOR DETERMINING AMOUNT OF BIOLOGICAL FLUID LOSS IN UROLOGICAL LAPAROSCOPIC OPERATIONS

摘要

FIELD: medicine.;SUBSTANCE: invention relates to medicine, namely to urology, and can be used to determine biological fluid loss in urological laparoscopic operations. The method includes supplying blood into the operating cavity during crossing or damaging arterial, venous and capillary blood vessels, as well as urine on a background of crossed urinary tracts, determining the volume of a mixture of biological fluids mixed with saline introduced into the operating cavity at each stage of the operation. The mixture of biological fluids with saline is evacuated from the operating cavity and collected in a vacuum aspirator container. With a total volume of the mixture of biological fluids with saline of more than one liter at each stage of the operation and with increased volume of the resulting mixture exceeding one liter at subsequent stages of the operation, the volume of blood loss is calculated by the mass of hemoglobin by the formula; ,;where V_bl is the volume of blood (l), V_mix is the volume of the fluid mixture (l), Hb_mix is the hemoglobin of the mixture (g/l), Hb_bl is the hemoglobin of the blood (g/l). The volume of urine loss is determined relative to creatinine by the formula; ,;where V_u is the volume of urine (l), Cr_mix is the creatinine of the mixture (mcmol/l), V_mix is the volume of the fluid mixture (l), Cr_bl is the creatinine of the blood (mcmol/L), V_bl is the volume of blood (l), Cr_u is the creatinine of the urine (mcmol/l). At the volume of the collected mixture of less than one liter, the volume of blood and urine loss is determined at the end of the operation.;EFFECT: use of the invention allows correctly planning and timely adjusting the procedure for performing infusion-transfusion therapy by accurately determining the volume of blood loss and urine entering the operating field.;1 cl, 1 ex