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目的：观察黄芪注射液对小儿反复呼吸道感染红细胞免疫指标的影响。方法：对体检的健康儿童６０例（对照组）进行红细胞Ｃ３ｂ受体花环试验、淋巴细胞绝对值测定和植物血凝素（ＰＨＡ）皮肤试验。６０例呼吸道反复感染患儿（治疗组）除常规治疗外，并给予黄芪注射液静滴，于治疗前后分别进行上述检验。结果：治疗组治疗后总有效率达９８．３％。治疗后免疫功能３项指标均明显优于治疗前（Ｐ均＜０．０１）；治疗组治疗后免疫功能３项指标与健康对照组比较均无显著性差异（Ｐ均＞０．０５）。结论：在西药抗生素及抗病毒治疗基础上，加用黄芪注射液具有增强免疫功能的作用，是治疗小儿反复呼吸道感染及免疫功能低下的一种新途径。
Objective: To observe the effect of astragalus injection on erythrocyte immune index in children with recurrent respiratory tract infection. Methods: 60 healthy volunteers (control group) were tested for C3b receptor rosette of erythrocytes, lymphocyte absolute value and phytohemagglutinin (PHA) skin test. 60 cases of children with recurrent respiratory tract infection (treatment group) in addition to conventional treatment, and intravenous infusion of Astragalus, before and after treatment were tested. Results: The total effective rate of the treatment group after treatment was 98.3%. After treatment, the three indexes of immune function were significantly better than those before treatment (P <0.01). There was no significant difference in immune function between the three groups after treatment (P> 0.05). Conclusion: Based on the antibiotics and antiviral therapy of western medicine, astragalus injection can enhance the immune function and is a new way to treat recurrent respiratory tract infection and immunocompromise in children.