Arterial-alveolar carbon dioxide tension difference and alveolar dead space in halothane anaesthetised horses

Equine Veterinary Journal
Y Moens

Abstract

Arterial-alveolar carbon dioxide tension differences (a-A) PCO2 and alveolar dead space were measured during clinical halothane anaesthesia of 110 horses with the help of continuous infra-red carbon dioxide analysis of expiratory gas. Mean (a-A) PCO2 was 1.6 +/- 0.8 kPa. Alveolar dead space expressed as a percentage of alveolar tidal volume had a mean value of 23 +/- 13 per cent. Influence on (a-A) PCO2 and alveolar dead space of the following variables was tested statistically: age, weight, body position, respiration mode and duration of anaesthesia. (a-A) PCO2 was influenced positively by weight (P less than 0.0001) and adoption of dorsal recumbency (P less than 0.01). Alveolar dead space was influenced positively by weight (P less than 0.0005), adoption of dorsal recumbency (P less than 0.01), intermittent positive pressure ventilation (P less than 0.0001) and duration of anaesthesia (P less than 0.05).

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Citations

Sep 1, 1990·Equine Veterinary Journal·P M Taylor
Mar 1, 1995·Equine Veterinary Journal·U Schatzmann
Feb 1, 2000·Veterinary Surgery : VS·L L DonaldsonB A Burton
Mar 19, 2013·The Veterinary Clinics of North America. Equine Practice·Yves Moens
May 10, 2008·Veterinary Anaesthesia and Analgesia·Juliet C Mansel, R Eddie Clutton
Jul 20, 2010·Veterinary Anaesthesia and Analgesia·Miguel Gozalo MarcillaFrank Gasthuys
Sep 19, 2017·Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians·Mads F BertelsenTobias Wang
Feb 6, 2017·Journal of the South African Veterinary Association·Åsa FahlmanGörel Nyman

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