• Department of Pediatrics, The Second Hospital of Lanzhou University, Lanzhou 730030, China;
DONG Xiangyu, Email: dxy0223@163.com
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Objective  To study oxygen carrying capacity of red blood cell in children with congenital left-to-right shunt (CLRS) and discuss its clinical significance.
Methods  A total of 62 children with CLRS were selected as a trial group and 40 healthy children who had accepted clinical physical examination as a control group. ELISA test was applied to determine 2,3 -DPG content of red blood cells. At the same time, pH, PaO2, PaCO2, Hb, P50O2 and relevant outcomes were tested for correlation analysis.
Results  Red blood cell 2,3-DPG (2.76±0.98 μmol/mL) was higher than that of the control group. PaO2, pH, Hb were lower than those of the control group with significant differences. Among the types of CLRS, 2,3 -DPG of ventricular septal defect was the highest and that of patent ductus arteriosus ranked the second, the two of which had a significant difference (P=0.007). As for red blood cell of children with congenital heart diseases, there was linear correlation between 2,3- DPG and PaO2 as [2,3-DPG=12.007 8– (0.154 7×PaO2)], as well as between P50O2 and 2,3 -DPG as [P50O2=26.303 6+ (1.799 2×2,3-DPG)].
Conclusion  Children with congenital left-to-right shunt tend to have low oxygen. Therefore, it is important to detect 2,3-DPG of red blood cell, blood gas analysis, and hemoglobin level change, in order to well understand the mechanism of congenital heart disease as well as to guide clinical practice.

Citation: YANG Yinan,DONG Xiangyu,YU Mu,NI Qian,SHEN Yang,LE Gaozhong. Study on Oxygen Carrying Capacity of Red Blood Cell in Children with Congenital Left-to-Right Shunt. Chinese Journal of Evidence-Based Medicine, 2012, 12(9): 1052-1055. doi: 10.7507/1672-2531.20120164 Copy

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