小儿慢性咳嗽的病因分析

目的 探讨小儿慢性咳嗽的病因，为临床诊断慢性咳嗽提供依据。方法 参加AB Chang推荐的儿童慢性咳嗽诊断流程，对慢性咳嗽的病因进行分类，并针对病因进行特异性治疗。结果 61例慢性咳嗽患儿中，咳嗽变异性哮喘（CVA），占54．1％（33／61），鼻后滴漏综合征（PNDS），占24．6％（15／61），支原体感染，占8．2％（5／61），双病因，占8．2％（5／61），病因未明，占4．9％（3／61），经过针对病因的特异性治疗，有91．6％（15／61）的患者咳嗽症状明显减轻或消失。结论 儿童慢性咳嗽常见病因有咳嗽变异性哮喘、鼻后滴漏综合征、支原体感染，针对病因治疗是取得临床疗效的关键。

Etiological Diagnosis of Chronic Cough in Children

OBJECTIVE To explore the spectrum of causes for chronic cough in children. METHODS 61 children with chronic cough were enrolled in the study. The diagnostic procedure was based on the protocol for diagnosing chronic cough designed by AB Chang and additional cytological assay was evaluated by hypertonic saline aerosol inhalation. The efficacy of specific therapy was etiology was e-valuated. RESULTS The most commoncauses included cough variant asthma(CVA) 54.1%(33/16),postnasal drip syndrome (PNDS) 24.6% (15/61), mycoplasma pneumoniae infection 8.2%(5/61). After active management besed on the etiology, cough improved in 56 patients (91.6%) . CONCLUSIONS The common causes for chronic cough in children included CVA, PNDs and mycopalsama pneumoniae infection. A positive response to the specific therapy is essential to a definite diagnosis.