Veterinary anaesthesia and analgesia
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To determine the effects of dobutamine and phenylephrine on intra- and postoperative survival in horses undergoing emergency abdominal surgery. ⋯ Our study supports previous work, suggesting that pre-existing cardiovascular status is an important prognostic determinant in equine colic cases. It provides no evidence that dobutamine or phenylephrine administration is associated with survival.
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Randomized Controlled Trial
Comparison of isoflurane and sevoflurane for short-term anesthesia in piglets.
To compare isoflurane (ISO) and sevoflurane (SEVO) short-term anesthesia in piglets during castration. ⋯ Isoflurane and SEVO, delivered in a novel inhaler, provided economical, safe, rapid anesthetic induction and maintenance. Optimal conditions were provided for castration and recoveries were brief and smooth. Statistically significant differences in times would be of minor clinical importance. The cost of anesthesia was much less with ISO than with SEVO.
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To determine the anatomic landmarks for performing paravertebral forelimb block in the dog. ⋯ The landmarks allow reliable placement of a solution at the nerves comprising the brachial plexus, allowing anesthesia of the entire forelimb in the dog.
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To determine the minimum alveolar concentration (MAC) of isoflurane during the infusion of ketamine. ⋯ The MAC of isoflurane was significantly decreased by an infusion of ketamine and this was accompanied by an increase in heart rate and blood pressure. Because of the prolonged recovery in our cats, further work needs to be performed before using this in patients.
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To assess the effects of a single intravenous dose of butorphanol (0.1 mg kg(-1)) on the nociceptive withdrawal reflex (NWR) using threshold, suprathreshold and repeated subthreshold electrical stimuli in conscious horses. ⋯ Butorphanol has minimal effect on sharp immediate Adelta-mediated pain but may alter spinal processing and decrease the delayed sensations of pain.