本文鉴于左至右分流型先天性心脏病易患感染性疾病,尤其易患呼吸道感染的特点,观察了其部分免疫学指标,发现58例非青紫型先心病人中大部分病人血清IgA 减低,与对照组相比有显著性差异。本文推测,左至右分流型先心病人肺部感染机会增加,是否与肺部长期充血致SIgA 分泌减少或活性减低有关,尚须进一步探讨。 This article in view of left to right shunt congenital heart disease susceptible to infectious diseases, especially susceptible to the characteristics of respiratory infections observed some of its immunological indicators and found that 58 cases of non-cyanotic congenital heart disease in most patients serum IgA decreased, Compared with the control group, there are significant differences. This article speculates that left to right shunt congenital lung disease increased chances of patients with long-term lung congestion caused by decreased SIgA secretion or decreased activity, the need for further study.