虽然哮喘是一种常见病,但当症状不典型和肺活量正常时,则不易诊断.这种“非典型哮喘”病人主诉,可能仅有咳嗽而无哮鸣,常规物理检查,肺部无异常发现。根据病史,物理检查和常规肺活量计诊断比较困难.有些权威人士提出,绝大多数哮喘,即使无症状,也易听到用力呼气时的哮鸣音,不过,许多正常人用这种方法也可听到。因此,有必要重新评价用力呼气时听到的哮鸣音对非典型哮喘的诊断价值。作者选择了临床上可疑哮喘但肺活量正常或接近正常的46例患者。在采集病史前,均拍摄前后位 X 线胸片.测定每个体位的第1次正常潮气量,然后做用力呼气。训练病人用力吸气与呼气。哮鸣音的定义是在肺野或气管连续听到音乐性质的声音。对每例病人 Although asthma is a common disease, it is difficult to diagnose when the symptoms are not typical and the vital capacity is normal. This “atypical asthma” patient may complain of cough without wheezing, routine physical examinations, no abnormal lung findings . According to medical history, physical examination and routine spirometry more difficult to diagnose.People authority suggested that the vast majority of asthma, even if asymptomatic, but also easy to hear forced exhaled wheeze, but many normal people also use this method Can hear Therefore, it is necessary to re-evaluate the diagnostic value of wheeze heard during forced expiration on atypical asthma. The authors selected 46 patients with clinically suspicious asthma but normal or nearly normal vital capacity. Prior to the acquisition of the patient’s history, radiographs were taken before and after radiographs, and the first normal tidal volume was measured for each position and exhaled vigorously. Train the patient to breathe and exhale hard. Wheeze is defined as the continuous sound of musical nature heard in the lung field or trachea. For each patient