放射線照射MAP血輸血による電解質と血液ガスの変動

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  • Changes in Electrolytes and Blood Gas after Transfusion of Irradiated MAP.

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This study was undertaken to investigate the changes in recipient serum electrolytes and arterial blood gas after irradiated blood transfusion. We measured electrolytes and arterial blood gas before and after the transfusion during elective surgery in 55 patients. The mean blood loss was 1, 477g and the mean transfused blood unit of irradiated MAP was 5.9 units. Potassium concentration increased from 3.8 to 4.2 mEq•l-1. A total of 187 units, which had been stored for 12.3±3.5 days after donation and for 5.1±3.8 days after irradiation, was used. There was a significant correlation between the storage period from the day of irradiation and the potassium concentration of the supernatant (r=0.56, p<0.0001). This study recommends that a safe transfusion rate of irradiated blood should be determined because the high potassium concentration of irradiated blood may lead to lethal complications in case of rapid transfusion.

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