Respiratory patterns in anaesthetised dogs during surgery.
The respiratory activity of spontaneously breathing dogs undergoing surgery during halothane/nitrous oxide/oxygen or methoxyflurane/nitrous oxide/oxygen anaesthesia was studied using a spirometer system. Respiratory tidal and minute volumes were directly related to body-weight under methoxyflurane but under halothane anaesthesia only the tidal volumes could be correlated with body-weight. Periodic deep breaths were seen in about one-third of the animals anaesthetised with methoxyflurane but were seldom seen in animals under halothane anaesthesia. Physiological dead-space remained constant for each animal during anaesthesia.
D000769:Anesthesia, Inhalation / Q000662:veterinary*; D000818:Animals; D002245:Carbon Dioxide / Q000097:blood; D004285:Dogs / Q000502:physiology / Q000601:surgery*; D006221:Halothane; D008733:Methoxyflurane; D009609:Nitrous Oxide; D010100:Oxygen / Q000097:blood; D012119:Respiration; D012126:Respiratory Dead Space; D013990:Tidal Volume
D002245:Carbon Dioxide; D008733:Methoxyflurane; D009609:Nitrous Oxide; D010100:Oxygen; D006221:Halothane