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Comparison of unilateral versus bilateral nasal catheters for oxygen administration in dogs
Author(s) -
Dunphy Elizabeth D.,
Mann F. A.,
Dodam John R.,
Branson Keith R.,
WagnerMann Colette C.,
Johnson Paula A.,
Brady Mark A.
Publication year - 2002
Publication title -
journal of veterinary emergency and critical care
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.886
H-Index - 47
eISSN - 1476-4431
pISSN - 1479-3261
DOI - 10.1046/j.1435-6935.2002.t01-1-00049.x
Subject(s) - medicine , anesthesia , catheter , airway , oxygen , oxygen toxicity , nose , oxygen therapy , blood flow , surgery , lung , chemistry , organic chemistry
Objective: To determine the effect of bilateral nasal oxygen supplementation on tracheal airway and arterial blood gas parameters. Design: Original research. Setting: Research Laboratory. Animals: Eight normal dogs. Interventions: None. Measurements: Intra‐tracheal oxygen concentration and arterial oxygen partial pressure at three different oxygen flow rates given through either unilateral or bilateral nasal catheters. Main results: F I O 2 and PaO 2 were significantly increased with higher total oxygen flow rates, but the increase was the same whether the higher flow was delivered through one nasal catheter or divided and administered though two nasal catheters. The use of bilateral nasal catheters allowed a tracheal F I O 2 as high as 0.60 with minimal patient discomfort. Conclusions: The benefit of bilateral nasal catheters for oxygen supplementation is the ability to provide high total oxygen flows with decreased risk of patient discomfort. If the desired oxygen flow can be achieved with a unilateral nasal catheter, then the only benefit of bilateral catheters is increased patient comfort. The use of bilateral nasal oxygen catheters for oxygen supplementation can result in an F I O 2 that is high enough to produce oxygen toxicity with prolonged administration.