Equine veterinary journal
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Equine veterinary journal · Nov 2011
Randomized Controlled TrialEffects of constant rate infusion of lidocaine and ketamine, with or without morphine, on isoflurane MAC in horses.
Lidocaine and ketamine are administered to horses as a constant rate infusion (CRI) during inhalation anaesthesia to reduce anaesthetic requirements. Morphine decreases the minimum alveolar concentration (MAC) in some domestic animals; when administered as a CRI in horses, morphine does not promote haemodynamic and ventilatory changes and exerts a positive effect on recovery. Isoflurane-sparing effect of lidocaine, ketamine and morphine coadministration has been evaluated in small animals but not in horses. ⋯ Administration of lidocaine and ketamine via CRI decreases isoflurane requirements. Coadministration of morphine does not provide further reduction in anaesthetic requirements and does not impair recovery.
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Equine veterinary journal · Nov 2011
Use of gastric balloon manometry for estimation of intra-abdominal pressure in horses.
Standing laparoscopic procedures, facilitated by abdominal insufflation with carbon dioxide, are being employed to an increasingly greater extent in horses. However, a sustained increase in abdominal pressure may be life-threatening. A practical method for intra-abdominal pressure (IAP) assessment is imperative. Although indirect methods for estimating IAP have been extensively studied in man, little work has been performed in veterinary medicine. ⋯ Our results suggest that the indirect method used in human patients for estimating IAP by P(ga) is not applicable for horses.