• Stacey R Byers, Julie A Cary, and Kelly D Farnsworth.
• Washington State University, College of Veterinary Medicine, Veterinary Clinical Sciences, Pullman, WA 99164-7060, USA. staceyr@vetmed.wsu.edu
• Can Vet J. 2009 Jul 1; 50 (7): 745-9.

AbstractThis study evaluated a retrograde orotracheal intubation technique and compared it to the traditional normograde intubation technique used in llamas. Oral anatomical features, which can impair visualization of the epiglottis and laryngeal structures, and the production of excessive salivary secretions make it difficult to establish an airway under emergency conditions. Normograde intubation involves placing a stylet through the mouth into the trachea and advancing the endotracheal tube over the stylet into the trachea. For retrograde intubation, a nested trochar with cannula is placed into the cervical trachea and a stylet is advanced through the cannula and out the mouth. The endotracheal tube is advanced over the stylet back into the trachea. Our evaluation of both techniques found no statistical difference in time to place the stylet or endotracheal tube; however, fewer attempts were needed to place the tube using the retrograde technique. We found the retrograde technique to be a viable option for intubating llamas.

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