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新近研究表明,紫绀性先天性心脏病患者改变他们的心脏指数,血红蛋白浓度和氧合血红蛋白离解曲线对维持全身氧的运输和非紫绀病人相似.如体内贮铁减少影响血红蛋白生成。将对组织氧不利.如患者心脏指数、pH值和体温均正常,而氧合血红蛋白离解曲线右移,说明组织氧的转运出现异常。 29例患儿均经选择性心导管检查,心导管术前测量Hb和MCV.22名插管时抽血测动脉和混合静脉血的氧饱和度。血P50,红血球2、3二磷酸甘油
Recent studies have shown that patients with cyanotic congenital heart disease to change their cardiac index, hemoglobin concentration and oxygenated hemoglobin dissociation curve for the maintenance of systemic oxygen transport and non-cyanosis patients are similar, such as reduced iron deposition in vivo affect hemoglobin production. Will adversely affect tissue oxygen, such as cardiac index, pH and body temperature were normal, and oxygenated hemoglobin dissociation curve shifted to the right, indicating abnormal tissue oxygen transport. Twenty-nine children underwent selective cardiac catheterization. Before cardiac catheterization, the oxygen saturations of blood sampling and mixed venous blood were measured in 22 patients with Hb and MCV. Blood P50, erythrocyte 2,3 diphosphate