Use of electrical stimulation to monitor lumbosacral epidural and intrathecal needle placement in rabbits

Otero, Pablo E.; Portela, Diego A.; Brinkyer, Javier A.; Tarragona, Lisa; Zaccagnini, Andrea S; Fuensalida, Santiago E.; Ceballos, Martin R

doi:10.2460/ajvr.73.8.1137

Cited by 15 publications

(6 citation statements)

References 23 publications

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“…Thus, we considered that drugs injected into the coccygeal spinal canal could be distributed to the epidural space. Our result was opposite to a previous study where injecting the contrast agent via epidural through the lumbosacral junction resulted in its entry into the subarachnoid space of all 7 rabbits [22].…”

Section: Discussioncontrasting

confidence: 99%

Effects of a single-bolus bupivacaine injection into the coccygeal spinal canal of rabbits

Ong

Hidaka

Kaneko

et al. 2020

The Journal of Veterinary Medical Science

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It has been reported that drugs intended for epidural administration through the lumbosacral junction are accidentally administered into the subarachnoid space frequently in rabbits. Therefore, we evaluated the epidural single-bolus injection technique for the administration of bupivacaine into the coccygeal spinal canal of rabbits. After epidural distribution was confirmed by the injection of iohexol into the coccygeal spinal canal, 0.3 ml/kg 0.5% bupivacaine or 0.3 ml/kg normal saline was injected via the same needle. After the first attempt of iohexol injection, although the contrast was found in the epidural space in all rabbits, the additional contrast was also found in blood vessel in 3 rabbits and in muscular layer in 1 rabbit. Subarachnoid distribution was not observed in any of the rabbits. The time taken to regain normal anal reflex, movement of the hind limbs during walking, conscious proprioception of the hind limbs, and pain sensation of the tail and left hind limb, following coccygeal spinal canal injection, were significantly longer in the bupivacaine group than in the normal saline group. These findings indicated that coccygeal epidural injection of bupivacaine in rabbits may provide anesthesia for the hind limbs, perineum, and tail, but inadvertent vascular entry of the epidural drug may occur.

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Section: Discussioncontrasting

confidence: 99%

Effects of a single-bolus bupivacaine injection into the coccygeal spinal canal of rabbits

Ong

Hidaka

Kaneko

et al. 2020

The Journal of Veterinary Medical Science

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“…The NST has been previously used to confirm epidural or intrathecal needle placement in humans (Tsui et al 2005), rabbits (Otero et al 2012), and dogs (Otero et al 2014b). In cats, the existing significant difference between the threshold current for motor response when the needle tip is positioned above (1.76 AE 0.34 mA) and below (0.34 AE 0.07 mA) the interarcuate ligament at lumbosacral epidural space (Otero et al 2014a) defined a NST cut off value of 0.7 mA.…”

Section: Discussionmentioning

confidence: 99%

The use of a nerve stimulation test to confirm sacrococcygeal epidural needle placement in cats

Otero

Verdier

Zaccagnini

et al. 2015

Veterinary Anaesthesia and Analgesia

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“…) and rabbits (Otero et al. ). To the authors’ knowledge, this technique has not been studied in cats.…”

Section: Introductionmentioning

confidence: 99%

Use of electrical nerve stimulation to monitor lumbosacral epidural needle placement in cats

Otero

Zaccagnini

Fuensalida

et al. 2014

Veterinary Anaesthesia and Analgesia

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Use of electrical stimulation to monitor lumbosacral epidural and intrathecal needle placement in rabbits

Abstract: Neurostimulation was a useful technique to determine correct intrathecal needle placement in rabbits but failed to detect the lumbosacral epidural space when the common technique, used in dogs and cats for the lumbosacral epidural approach, was used.

Cited by 15 publications

References 23 publications

Effects of a single-bolus bupivacaine injection into the coccygeal spinal canal of rabbits

Effects of a single-bolus bupivacaine injection into the coccygeal spinal canal of rabbits

The use of a nerve stimulation test to confirm sacrococcygeal epidural needle placement in cats

Use of electrical nerve stimulation to monitor lumbosacral epidural needle placement in cats

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