支气管激发试验在咳嗽变异性哮喘中的应用

目的探讨支气管激发试验（BPT）在咳嗽变异性哮喘（CVA）诊断中的应用价值。方法对1525例慢性咳嗽及拟诊CVA患者进行乙酰甲胆碱支气管激发试验,检测其气道高反应性。结果 1525例患者中BPT阳性795例,阳性率52.1%,阳性病例中CVA735例（92.5%）,其余60例阳性病例中45例为感染后咳嗽,12例为轻度COPD,3例为支气管结核。结论 CVA为慢性咳嗽患者气道高反应性的主要病因。对不明原因的慢性咳嗽患者进行BPT,有助于早期明确诊断并给予正确及时治疗。

Application of bronchial provocation test on cough variant asthma

Objective To discuss the valuation of bronchial provocative test(BPT) on the diagnosis of cough variant asthma(CVA).Methods 525 patients were put to do the BPT using methacholine,who were chronic coughing or suspected CVA.Results 795 patients were positive.The positive rate was 52.1%.there were 735 patients diagnosed CVA(92.5%),45 patients diagnosed cough after infection,12 patients diagnosed mild chronic obstructive pulmonary diseases(COPD) and 3 patients diagnosed bronchial tuberculosis in these cases.Conclusion CVA was the main cause of the airway hyperreactivity(AHR) in the chronic cough patients.BPT was helpful to diagnose earlier and treat better for the chronic cough patients.