Document Detail


The effects of extubation with an inflated versus deflated endotracheal tube cuff on endotracheal fluid volume in the dog.
MedLine Citation:
PMID:  21492385     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Objective  The purpose of this study was to investigate the effect of extubation with the endotracheal tube (ETT) cuff inflated versus deflated on endotracheal fluid volume in normal canine cadavers. Study Design  Prospective randomized blinded controlled cadaver study. Animals  Sixteen adult Beagle cadavers weighing 10.7 ± 1.7 kg (mean ± SD) and <2 years of age. Methods  Cadavers were orotracheally intubated in lateral recumbency, and the ETT cuffs were inflated to a closing pressure of 20 cm H(2) O before barium was introduced orad to the cuff. The dogs were randomly assigned to an ETT cuff extubation condition of deflated or unchanged from the original closing pressure. After extubation, lateral thoracic radiographs of the cadavers were obtained and scored by three independent blinded reviewers. Each reviewer ordered all 16 lateral radiographs from most to least intratracheal contrast and also estimated residual intratracheal contrast volume. Results  Dogs extubated with a deflated ETT cuff had a median rank of 13 and dogs extubated with an inflated ETT cuff had a median rank of 4.5 (p < 0.0001). Dogs extubated with a deflated ETT cuff had an estimated intratracheal volume of fluid of 1.8 mL ± 0.7 mL (mean ± SD) and dogs extubated with an inflated ETT cuff had an estimated volume of 0.9 mL ± 0.5 mL (p < 0.0001). Fleiss Kappa for agreement among evaluators was 0.875. Conclusions and clinical relevance  Extubation with the cuff inflated removed more liquid contents from the trachea than extubation with the cuff deflated and may assist in the prevention of pulmonary aspiration when fluid is present in the proximal trachea. The technique did not remove all fluid so the potential for pulmonary damage remains.
Authors:
Amanda Vance; Erik H Hofmeister; Cody Laas; Jamie Williams
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Veterinary anaesthesia and analgesia     Volume:  38     ISSN:  1467-2995     ISO Abbreviation:  Vet Anaesth Analg     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-04-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100956422     Medline TA:  Vet Anaesth Analg     Country:  England    
Other Details:
Languages:  eng     Pagination:  203-7     Citation Subset:  IM    
Copyright Information:
© 2011 The Authors. Veterinary Anaesthesia and Analgesia © 2011 Association of Veterinary Anaesthetists and the American College of Veterinary Anesthesiologists.
Affiliation:
College of Veterinary Medicine, University of Georgia, Athens, GA, USA Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA, USA Department of Anatomy Radiology and Behavior, College of Veterinary Medicine, University of Georgia, Athens, GA, USA.
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