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对慢性重症贫血(Hb<50g/l)患儿采取慢速输注压积红细胞以防因循环负荷过重导致心力衰竭已被普遍接受。文献主张反复少量输注压积红细胞,即:3ml/kg,3～4小时输完,每8小时一次,或3～5ml/kg,3小时内输完。间隔几小时后再输注,可确保心血管系统的稳定性。该方法使患儿总的输血间期及住院日期延长。作者应用新的输血疗法:2ml/kg/h持续输注压积红细胞直至达到预期红细胞容量,克服了上述方法之不足,对其安全性及临床效果进行了观察和评价。
In chronic severe anemia (Hb <50g / l) children take slow infusion of red blood cells in order to prevent overloading due to circulatory overload heart failure has been generally accepted. Literature advocated repeated infusions of small amounts of red blood cells transfusions, namely: 3ml / kg, 3 to 4 hours lost, once every 8 hours, or 3 ~ 5ml / kg, 3 hours lost. A few hours after the infusion, to ensure the stability of the cardiovascular system. This method allows the total blood transfusion and hospitalization date extension. The authors apply a new transfusion therapy: continuous infusion of 2ml / kg / h red blood cells until the expected erythrocyte volume, overcome the lack of these methods, its safety and clinical effects were observed and evaluated.