咳嗽变异性哮喘简称ＣＶＡ，又称隐匿型哮喘或过敏性咳嗽，是哮喘的一种潜在形式。因临床以持续或反复咳嗽为主要表现，无喘息及肺部哮鸣音，常被误诊为支气管炎或反复呼吸道感染。现就本院确诊的４２例报告如下。１　临床资料１．１　年龄与性别：本组病例均来自门诊，男２? Cough variant asthma referred to as CVA, also known as occult asthma or allergic cough, is a potential form of asthma. Due to clinical continuous or repeated cough as the main performance, no wheezing and lung wheeze, often misdiagnosed as bronchitis or recurrent respiratory tract infections. The hospital is diagnosed 42 cases are as follows. 1 Clinical data 1.1 Age and gender: The patients were from the clinic, male 2?