Bittleman D B, Smith R J, Weiler J M
Department of Internal Medicine, University of Iowa, Iowa City, USA.
Chest. 1994 Aug;106(2):615-6. doi: 10.1378/chest.106.2.615.
A 16-year-old female basketball player presented with a 2 1/2-year history of exercise-induced severe dyspnea, stridor, and mild wheezing that did not respond to prophylactic treatment with beta-agonists and cromolyn. Spirometric data at rest were normal, but flow-volume loops during exercise suggested a variable extrathoracic obstruction. Laryngoscopic evaluation while the patient was riding an exercise bicycle demonstrated an abnormal motion of the arytenoid region causing obstruction of the airway during inspiration. The vocal cords moved normally. This patient demonstrates the capacity of supraglottic tissue to obstruct the airway during exercise as a cause for exercise-induced dyspnea and stridor. Patients with this disorder may be misdiagnosed as having exercise-induced asthma.
一名16岁的女性篮球运动员出现运动诱发的严重呼吸困难、喘鸣和轻度哮鸣2年半，使用β受体激动剂和色甘酸钠预防性治疗无效。静息时的肺功能数据正常，但运动期间的流量-容积环提示存在可变的胸外梗阻。患者在骑健身自行车时进行喉镜评估，结果显示杓状软骨区域运动异常，导致吸气时气道梗阻。声带运动正常。该患者表明声门上组织在运动期间可导致气道梗阻，从而引起运动诱发的呼吸困难和喘鸣。患有这种疾病的患者可能会被误诊为运动诱发哮喘。
