期刊
JOURNAL OF THORACIC IMAGING
卷 22, 期 4, 页码 335-340出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/RTI.0b013e3180cab6cf
关键词
air-leak syndrome; high-resolution computed tomography; pulmonary complications; hematopoietic stem cell transplantation; pulmonary diseases
Objectives: The purpose of this study was to determine the incidence and the high-resolution computed tomography findings of air-leak syndromes in a large group of hematopoietic stem cell (HSC) transplant recipients with proved chronic graft versus host disease (cGVHD). Materials and Methods: High-resolution computed tomography scans of 9. allogeneic HSC transplant recipients (8 men, I woman; 19 to 45 years of age; median 28 y), with a proven diagnosis of cGVHD-related bronchiolitis obliterans syndrome (130S) were reviewed for the presence, appearance, and distribution of abnormalities. Results: Nine patients with cGVHD developed 10 episodes of spontaneous air-leak syndromes secondary to cGVHD-related BOS during the study period analyzed; for a 2-year estimated cumulative incidence of 2.1% (95% confidence interval 0.2% to 3.8%) its prevalence was 5.7% (95%CI: 2.6% to 10.5%). All cases were allogeneic HSC transplant recipients with cGVHD who acquired new respiratory symptoms and/or radiologic abnormalities. Pneumomediastinum and pneumothorax were present in 6 patients. Subcutaneous emphysema was identified in 3 patients and pulmonary interstitial emphysema in 2 patients. A combination of different air-leak syndromes was observed in 6 patients. Conclusion: Air-leak syndromes represent an uncommon late complication in HSC transplant recipients with cGVHD-related BOS.
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