Publicação: Investigation into the use of the Laryngeal Mask Airway in pentobarbital anesthetized dogs
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1999-11-01
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Objective - To investigate the use of the laryngeal mask airway (LMA) in dogs. Study Design - Prospective experimental study. Animals - Eight healthy adult mixed breed dogs weighing from 15 to 20 kg. Methods - The dogs were anesthetized with intravenous pentobarbital. An LMA was introduced after the induction of anesthesia and 1 L/min O2 plus 1 L/min air was delivered using a circle anesthetic system. Respiratory rate, tidal volume, arterial O2 saturation (pulse oximetry), end tidal CO2, inspired fraction of O2, pulse rate, and mean arterial blood pressure were measured after the insertion of the LMA and 30, 60, 90, and 120 minutes afterwards. Results - There were no changes in respiratory rate, tidal volume, arterial O2 saturation, and pulse rate during anesthesia. End tidal CO2 decreased significantly by the end of anesthesia and ventilation appeared satisfactory. Conclusions - An LMA appeared to be an alternative option to maintain the patency of the airway in dogs. Clinical Relevance - This device may allow safe maintenance of an airway in dogs when intubation is difficult or when it interferes with the procedure (eg, cervical myelography). ©Copyright 1999 by The American College of Veterinary Surgeons.
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Veterinary Surgery, v. 28, n. 6, p. 502-505, 1999.
