Background: Tracheal dyskinesia (TD) was recently recognized as a possible mechanism for acute pulmonary edema (Elamin and Firdose, J Bronchol 2004;11:118-21; Khan and Elamin Eur Respir J 2005;26:319). This study was designed to evaluate possible impact of TD on cardiac hemodynamics.
Methods: Patients were prospectively assigned to either study "A" or control "B" groups (TD >50% or <50%, respectively) diagnosed by bronchoscopy or dynamic chest computed tomography.