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30b 弘前医学 = Hirosaki Medical Journal >
68巻1号 >

このアイテムは、前月 12 件の閲覧がありました。

このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/10129/6144

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タイトル: What is Happening in The Ards Piglet Lungs: - The Origin of B-Lines on Ultrasonography -
著者: NIshimura, Masayuki
Tsubo, Toshihito
Hirota, Kazuyoshi
著者所属: Department of Anesthesiology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
Intensive Care Unit, Hirosaki University Hospital Hirosaki, Japan
Department of Anesthesiology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
発行日: 5-Oct-2017
出版者: 弘前大学大学院医学研究科・弘前医学会
誌名: 弘前医学
巻: 68
号: 1
開始ページ: 14
終了ページ: 22
ISSN: 0439-1721
キーワード: B-lines
ARDS
TTE
TEE
抄録: B-lines are the important signs of pulmonary edema in acute respiratory distress syndrome (ARDS) detected with ultrasonography. We studied the mechanism of the origin and disappearance of B-lines in ARDS piglets using ultrasonography and microscopy. Methods: ARDS was induced by intratracheal administration of 0.1M Hydrochloric Acid (HCl) in 23 anesthetized, ventilated piglets. The occurrence of B-lines was evaluated using transthoracic echography (TTE) and transesophageal echography (TEE). Changes in B-lines were recorded after a saline infusion into the pleural space, and after pulmonary consolidation developed and reached the pleura. Left lower lobe was excised and lung sections were examined by light microscopy. Results: Following the saline infusion into the pleural space, we observed B-lines fanning out from the visceral pleura. As pulmonary consolidation developed, B-lines disappeared. The structure that B-lines fanned out from was the complex of thickened pleura and sub-pleural interlobular septa surrounded by gas. In the tissue where B-lines disappeared, the thickened sub-pleural interlobular septa were surrounded by cells and liquid. Conclusions: We found that B-lines derive from the complex of thickened pleura and sub-pleural interlobular septa surrounded by gas. B-lines disappeared when the sub-pleural thickened interlobular septa were surrounded by cells and liquid.
URI: http://hdl.handle.net/10129/6144
テキストバージョン: publisher
出現コレクション:68巻1号

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