Modification of a Nonrebreathing Circuit Adapter to Prevent Barotrauma in Anesthetized Patients |
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| Authors: | R M MCMURPHY DVM Diplomate ACVA D S HODGSON DVM Diplomate ACVA P H CRIBB BSC MRCVS Diplomate ACVA |
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| Institution: | Department of Clinical Sciences, Kansas State University, College of Veterinary Medicine, Manhattan, KS;Department of Anesthesiology, Radiology, and Surgery, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada. |
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| Abstract: | Barotrauma, pneumothorax, and pneumomediastinum occurred in two anesthetized cats in which the waste gas outlet of a nonrebreathing circuit was occluded. To prevent any similar cases of barotrauma, we have modified our nonrebreathing circuit adapters by inserting a 15 cm H2O PEEP valve into the gas pathway of the nonrebreathing circuit adapter. This PEEP valve prevents the circuit and airway pressures from exceeding 15 cm H2O if the pop-off valve of the nonrebreathing circuit adapter is inadvertently left closed. |
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