Feihl F, Badan M, Depeursinge F, Depeursinge C, Leuenberger P, Pécoud A, Perret C
Institut de physiopathologie clinique, Centre hospitalier universitaire vaudois, Lausanne, Switzerland.
Ann Allergy. 1988 Oct;61(4):263-8.
Respiratory acoustical impedance, a new method to measure airway obstruction during quiet breathing, was compared with plethysmography and spirometry in 19 asthmatics undergoing a bronchial inhalation challenge with an allergen. Respiratory acoustical impedance and plethysmography were both more sensitive than spirometry in detecting bronchoconstriction. Respiratory acoustical impedance is easily measured during quiet breathing, even in uncooperative subjects; forced expirations, which may alter bronchial tone, are avoided. Respiratory acoustical impedance is sensitive and reliable in measuring acute airway obstruction.
呼吸声阻抗是一种在静息呼吸时测量气道阻塞的新方法，在19名接受变应原支气管吸入激发试验的哮喘患者中，将其与体积描记法和肺活量测定法进行了比较。在检测支气管收缩方面，呼吸声阻抗和体积描记法均比肺活量测定法更敏感。呼吸声阻抗在静息呼吸时易于测量，即使是不配合的受试者也能测量；避免了可能改变支气管张力的用力呼气。呼吸声阻抗在测量急性气道阻塞方面敏感且可靠。
