Comparison of expiratory CT airway abnormalities before and after tracheoplasty surgery for tracheobronchomalacia.

摘要: OBJECTIVES The purpose of this study is to assess the prevalence and severity expiratory multidetector computer tomography airway abnormalities, including central collapse peripheral air trapping, before after tracheoplasty, a novel surgical treatment for tracheomalacia. MATERIALS AND METHODS Our hospital information system retrospectively identified all patients with bronchoscopically diagnosed tracheobronchomalacia referred imaging pretracheoplasty posttracheoplasty during 41-month period. All underwent standard protocol comprised both at end inspiration dynamic expiration. Two observers simultaneously reviewed images. Maximal tracheal total air-trapping scores were calculated each patient. Statistical analysis was performed using paired t test Wilcoxon signed-ranks test. RESULTS cohort 16 patients, 12 men 4 women, mean age 60 years (range: 41 80). Mean percentage 70%+/-28 compared 36%+/-27 (P<0.0001). Fifteen (94%) sixteen demonstrated trapping posttracheoplasty. Median similar between preoperative (median 6, range: 0 9) postoperative 10) scans (P=0.43). experienced symptomatic improvement surgery. CONCLUSIONS Tracheoplasty associated significant reduction in subjective improvement, but it does not change trapping.