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Epidural anesthesia in the lumbosacral decompressive surgery in dogs

The objective of this study was to evaluate the feasibility, effectiveness, advantages and disadvantages of lumbosacral epidural anesthesia with inhalational anesthesia in surgical decompression of the cauda equina, since this surgery has a lengthy and painful recovery from anesthesia. For this, 11 adult dogs which showed clinical signs of cauda equina syndrome were used. After the epidural, anesthesia in six of 11 patients, spinal tap in L7-S1, with bupivacaine 0.5% anesthetic was used. Physiological parameters (heart, vascular, respiratory and body temperature) were measured before, 10 minutes after, and 30 minutes after the epidural, after the laminectomia and 60 minutes and 90 minutes after the epidural, both in the epidural group and the control group. Animals that had ep showed a significant reduction in consumption of inhaled anesthetic and time of extubation. There were no neurological deficits caused by epidural anesthesia compared with the group without epidural anesthesia. It was concluded that the epidural anesthesia technique is effective in lumbosacral decompression surgeries, leading to a lower risk for the anesthetized animal.

cauda equina; anesthesia; analgesia

Universidade Federal de Minas Gerais, Escola de Veterinária Caixa Postal 567, 30123-970 Belo Horizonte MG - Brazil, Tel.: (55 31) 3409-2041, Tel.: (55 31) 3409-2042 - Belo Horizonte - MG - Brazil