Preliminary analysis of qualitative changes in suspended red blood cells under different low-pressure and hypoxic conditions / 中国输血杂志

ABSTRACT

【Objective】 To evaluate the quality of suspended red blood cells (SRBC) under low-pressure and hypoxic conditions, in order to lay a theoretical foundation for airline delivery, air drop and storage of SRBC on plateau. 【Methods】 The low-pressure and hypoxic conditions (0.026 MPa and 0.047 MPa) were simulated by a pressure control device. SRBC were divided into 3 groups (5 bags/group, 1.5 U/bag). Each group was stored in 0.026 MPa environment at 2℃-6℃ for 24 hours (named 0.026 MPa), in 0.047MPa environment at 2℃-6℃ for 7 days (named 0.047 MPa), and in a blood storage refrigerator at 4℃ (named the control), respectively. The storage cell characteristics were examined on day 2, 9, 14, 28 and 35. 【Results】 We found that HCT, MCV, K+, Na+, FHb, hemolytic ratio, 2, 3-DPG and rheological properties in group 0.026 MPa and 0.047 MPa were not significant different compared with that in control (P>0.05). The consumptions of Glu in group 0.026 MPa and 0.047 MPa were significantly higher (P<0.05), and a transient increase in LAC concentration of group 0.026 MPa and 0.047MPa were observed, compared to the control. 【Conclusion】 The conditions of low-pressure and hypoxia have no significant effect on the quality of suspended red blood cells.