Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Use of endobronchial one-way valves reveals questions on etiology of spontaneous pneumothorax: report of three cases. | Journal of Cardiothoracic Surgery BioMed Central Open Access Case report Use of endobronchial one-way valves reveals questions on etiology of spontaneous pneumothorax report of three cases Wai Cho Yu 1 Yiu Cheong Yeung1 Yiu Chang1 Yuet Ling Tsang2 Kwok Chu Kwong1 Hau Chung Kwok1 and YC Gary Lee3 Address Department of Medicine Geriatrics Princess Margaret Hospital Hong Kong 2Central Endoscopy Unit Princess Margaret Hospital Hong Kong Hong Kong and 3University of Western Australia Lung Institute of Western Australia Sir Charles Gairdner Hospital Perth Australia Email Wai Cho Yu - yuwc@ Yiu Cheong Yeung - yeungyc@ Yiu Chang - changy@ Yuet Ling Tsang - tsangyl@ Kwok Chu Kwong - kwongkc@ Hau Chung Kwok - khc054@ YC Gary Lee - Corresponding author Published 7 November 2009 Received I September 2009 Accepted 7 November 2009 Journal of Cardiothoracic Surgery 2009 4 63 doi 1749-8090-4-63 This article is available from http content 4 1 63 2009 Yu et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract__ Spontaneous pneumothoraces are believed to arise when air from the supplying airway exit via a ruptured visceral pleural bleb into the pleural cavity. Endobronchial one-way valves EBVs allow air exit but not entry from individual segmental airways. Systematic deployment of EBVs was applied to three patients with secondary spontaneous pneumothoraces and persistent airleak. In all cases balloon-catheter occlusion of the upper lobe bronchus stopped the airleak. EBVs applied to individual upper lobe segmental airways failed to terminate the
