儿童慢性咳嗽是临床常见的症状,多见于呼吸道疾病,以慢性咳嗽为主要症状的咳嗽变异性哮喘(CVA)较少见,咳嗽变异性哮喘又称为过敏性哮喘、隐匿性哮喘、咳嗽性哮喘。它是以慢性咳嗽为唯一表现的特殊类型的哮喘,由于咳嗽变异性哮喘表现特殊,常被忽视或误诊为反复上呼吸道感染、慢 Children with chronic cough are common clinical symptoms, more common in respiratory diseases, chronic cough as the main symptoms of cough variant asthma (CVA) is rare, cough variant asthma, also known as allergic asthma, occult asthma, cough asthma . It is the only type of asthma characterized by chronic cough. It is often neglected or misdiagnosed as recurrent upper respiratory tract infections due to the unusual appearance of cough variant asthma