• J. Cardiothorac. Vasc. Anesth. · Apr 2001

    Clinical Trial

    The relationship between tracheal width and left bronchial width: Implications for left-sided double-lumen tube selection.

    • J B Brodsky, K Malott, M Angst, B G Fitzmaurice, S P Kee, and L Logan.
    • Department of Anesthesiology, Stanford University School of Medicine, Stanford, CA 94305, USA. Jbrodskyleland.stanford.edu
    • J. Cardiothorac. Vasc. Anesth. 2001 Apr 1;15(2):216-7.

    ObjectiveTo determine if there is a relationship between tracheal width (TW) and left bronchial width (LBW).DesignThree-dimensional chest computed tomography (CT) scans were used to reconstruct major airways for measurement of TW and LBW.SettingStanford University Medical Center, Stanford, California.ParticipantsThirty-one adult patients undergoing chest CT scans.InterventionsCursors were used to directly measure internal diameter from coronal images of the trachea at midclavicular level and the left main bronchus at a level 1 cm below the carina.Measurements And Main ResultsTW and LBW, but not the LBW-to-TW ratio, were significantly larger in men than in women. The LBW-to-TW ratio was consistent for men (0.75 +/- 0.09) and women (0.77 +/- 0.10).ConclusionsLBW is proportional to TW. If LBW cannot be measured directly but TW can, the ratio of LBW to TW can be used to predict LBW. An appropriate-sized left double-lumen tube can then be selected for the patient.Copyright 2001 by W.B. Saunders Company

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