Does the Presence of a Tracheal Bronchus Affect the Margin of Safety of Double-Lumen Tube Placement?

Autor: Wynnie W. M. Lam, S. K. Ng, Anthony M-H Ho, Tom Wai Kin Lee, David C. Chung, Freda O. Lam, Manoj K. Karmakar
Rok vydání: 2004
Předmět:
Zdroj: Anesthesia & Analgesia. 99:293-295
ISSN: 0003-2999
DOI: 10.1213/01.ane.0000118106.09944.e7
Popis: During double-lumen tube (DLT) placement, the anesthesiologist must be mindful of the margin of safety. We determined how this margin is affected by the presence of a tracheal bronchus by elucidating the mathematical relationship between some relevant physical dimensions of the trachea, bronchi, and DLT. Our results suggest that a tracheal bronchus only rarely affects the intrinsic margin of safety of DLT placement. When the tracheal bronchus is located much higher than its most frequently seen location (within 2 cm from the carina), however, there is increased risk that it could be blocked by the tracheal cuff of a left-sided DLT.
Databáze: OpenAIRE