Veterinary anaesthesia and analgesia
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Case Reports
Accidental prehension and suspected transmucosal or oral absorption of fentanyl from a transdermal patch in a dog.
A 100-microg hour(-1) transdermal fentanyl patch was applied to a 29-kg, 6-year-old, intact male mixed breed dog to help manage postoperative pain after total ear canal ablation and lateral bulla osteotomy. Two days later, the dog was found extremely sedated, and the reservoir of the transdermal patch was open. ⋯ The patch was removed, blood was drawn to determine serum fentanyl levels, and the dog recovered without incident. This clinical case documents the potential for neurologic sequelae, and bradycardia when fentanyl patches are used in animals to relieve postoperative pain.
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Randomized Controlled Trial
Differences in need for hemodynamic support in horses anesthetized with sevoflurane as compared to isoflurane.
To study whether hemodynamic function in horses, particularly mean arterial blood pressure (MAP), is better maintained with sevoflurane than isoflurane, thus requiring less pharmacological support. ⋯ Horses under sevoflurane anesthesia may require less pharmacological support in the form of dobutamine than isoflurane-anesthetized horses. This could be due to less suppression of vasomotor tone.
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Randomized Controlled Trial
A comparison of four methods of analgesia in cats following ovariohysterectomy.
To evaluate the effectiveness of preoperative administration of oral carprofen, subcutaneous ketoprofen, and local nerve block with bupivacaine in preventing postoperative pain-associated behavior in cats after ovariohysterectomy. ⋯ Preoperative carprofen and ketoprofen have effects on pain-associated behavior similar to butorphanol in cats undergoing ovariohysterectomy. Cats receiving bupivacaine blocks may require additional analgesics immediately after surgery.
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Randomized Controlled Trial
The effect of nitrous oxide on halothane, isoflurane and sevoflurane requirements in ventilated dogs undergoing ovariohysterectomy.
To examine the effect of 64% nitrous oxide (N2O) on halothane (HAL), isoflurane (ISO) or sevoflurane (SEV) requirements in dogs undergoing ovariohysterectomy. ⋯ N2O reduces HAL, ISO and SEV requirements in dogs undergoing ovariohysterectomy. Cardiovascular stimulation occurred when N2O was used with ISO, less so with SEV and not with HAL
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To determine the minimum alveolar concentration (MAC) of desflurane in llamas and alpacas. ⋯ The MAC of desflurane in llamas and alpacas was in the range of that reported for other species.