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目的探讨小儿慢性咳嗽的病因及其正确的治疗方法。方法用酶联免疫法（ＥＬＩＳＡ法）测定肺炎支原体ＩｇＭ抗体；用链菌素亲生物素－过氧化酶连接法测定Ｔ细胞亚群；用琼脂扩散法测定血清免疫球蛋白。结合临床对慢性咳嗽进行分析。结果按照儿童哮喘诊断标准和排除引起慢性咳嗽的其它疾病后使用支气管扩张剂治疗有效者，确诊为咳嗽变异性哮喘 ８８例，占观察对象的３２． ８％；检测肺炎支原体 ＩｇＭ抗体，呈阳性或弱阳性及使用大环内酯类抗生素治疗有效者确诊为肺炎支原体感染 １２４例，占４６．３％。按反复呼吸道感染的标准及使用免疫增强剂治疗有效者确诊为反复呼吸道感染３６例，占１３．４％。肺结核７例，占２．６％。肺瘀血６例，占２．２％。其它７例，占２．６％。结论对慢性咳嗽患儿要针对不同的病因进行诊断治疗，以免延误病情。
Objective To investigate the etiology and correct treatment of chronic cough in children. Methods Mycoplasma pneumoniae IgM antibody was detected by enzyme-linked immunosorbent assay (ELISA); T cell subsets were determined by streptavidin-peroxidase ligation; serum immunoglobulins were determined by agar diffusion method. Combined with clinical analysis of chronic cough. Results According to the diagnostic criteria of children with asthma and the exclusion of other diseases caused by chronic cough after the use of bronchodilators effective treatment, diagnosed as cough variant asthma in 88 cases, accounting for 32 subjects. 8%; Mycoplasma pneumoniae IgM antibody detection, positive or weak positive and macrolide antibiotics effective treatment of mycoplasma pneumoniae infection were diagnosed in 124 cases, accounting for 46.3%. According to the standard of repeated respiratory infection and the use of immune enhancer treatment were diagnosed as recurrent respiratory tract infection in 36 cases, accounting for 13.4%. Pulmonary tuberculosis in 7 cases, accounting for 2.6%. 6 cases of pulmonary blood stasis, accounting for 2.2%. The other 7 cases, accounting for 2.6%. Conclusion For children with chronic cough for different causes of diagnosis and treatment, so as not to delay the disease.