Complicações neurológicas determinadas pela anestesia subaracnóidea

Ganem, Eliana Marisa; Castiglia, Yara Marcondes Machado; Vianna, Pedro Thadeu Galvão

doi:10.1590/s0034-70942002000400012

Cited by 18 publications

(21 citation statements)

References 65 publications

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“…The absence of the dural sac may be of concern, since the risk of spinal cord injury and consequent neurological injury increases if the anesthesiologist lacks the skill and precision to administer epidural anesthesia (Ganem, 2006). In the case of the night monkey, the fact that it does not have the dural sac, the anesthesiologist may inadvertently access the subarachnoid space (O'Hearn and Wright, 2011).…”

Section: Resultsmentioning

confidence: 99%

Topography of the medullary cone of the feline night monkey: Clinical implications in epidural anesthesia

Silva

Ribeiro

Soares

et al. 2019

Revista Brasileira De Ciência Veterinária

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Feline night monkey (Aotus azarae infulatus) is an arboreal primate that sleeps during the day hidden among branches of trees, leaving its hideout after nightfall. Little is known about the morphology of these animals, which leads to some difficulty in clinical and surgical approaches, as there has been substantial growth in the veterinarian's role in maintaining the health and well-being of wildlife. Thus, we sought to investigate the topography and morphometry of the medullary cone, a small portion of the nervous system of the feline night monkey, which is of paramount importance in approaches for epidural anesthesia. Specimens from five young females were used, each with eight lumbar vertebrae, three sacral vertebrae, and a medullary cone with an average length of 7.5 cm, located between L5 and S3. Based on this finding, we suggest that a probable site for the application of epidural anesthesia is the space between S3 and Cc1.

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Section: Resultsmentioning

confidence: 99%

Topography of the medullary cone of the feline night monkey: Clinical implications in epidural anesthesia

Silva

Ribeiro

Soares

et al. 2019

Revista Brasileira De Ciência Veterinária

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“…Consequently, no dural sac was formed ( Figure 1B). In species that do not present the dural sac as is the case of S. apella, the risk of neurological injury is high if the anesthesiologist does not have the skill and precision to administer epidural anesthesia (Ganem, 2006) in this way, the injury can be caused should the anesthesiologist access the subarachnoid space (O'Hearn and Wright, 2011).…”

Section: Resultsmentioning

confidence: 99%

Skeletopy of the medullary cone in Sapajus apella: Clinical implications in epidural anesthesia

Lopes

Melul

Prado

et al. 2019

Revista Brasileira De Ciência Veterinária

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This work aimed to describe the skeletopy of the medullary cone of the capuchin monkey (Sapajus apella) and to lay morphological foundations to propose a route of administration for epidural anesthesia. We used five females adults S. apella, and dissected them to study their medullary cone. The fixated animals were dissected, a skin incision was made from the dorsal median line, epaxial musculature and vertebral arcs was removed to expose the spinal cord, individualizing the medullary cone and the lumbar intumescence. The base of S. apella medullary cone was located near the L5 vertebra and the apex near S3, the structure was 4.5 cm in average. The evaluated specimens presented five lumbar and four sacral vertebrae. We concluded that the positioning of S. apella medullary cone is caudally than in other species, suggesting that the most appropriate location for epidural anesthetic procedures is the sacrocaudal region.

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“…Sabe-se que há um envolvimento de componentes sensoriais (aferentes) e motores (eferentes) para que seja desencadeada uma resposta frente a um estímulo (Ganem et al 2002). Portanto, com a instalação do bloqueio medular independente da baricidade da solução anestésica empregada, espera-se um bloqueio de uma dessas vias.…”

Section: Resultsunclassified

“…Embora os sinais descritos anteriormente também possam estar associados a uma lesão direta da medula pela agulha, Ganem et al (2002) refere que um trauma direto por uma agulha não causaria sinais tão duradouros. Desta forma, uma possibilidade para esta ocorrência seria o desenvolvimento de uma reação inflamatória atribuída ao trauma pela agulha em associação ao efeito neurotóxico local do anestésico local.…”

Section: Resultsunclassified

Eficácia e efeitos hemodinâmicos da anestesia raquidiana com ropivacaína isobárica, hipobárica ou hiperbárica em cães anestesiados com isofluorano

Abimussi

Floriano²,

Wagatsuma³

et al. 2017

Pesq. Vet. Bras.

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The aim of the study was to assess hemodynamic changes and complications of spinal anesthesia with ropivacaine at different baricities. Six beagle dogs aged four years. The dogs were anesthetized with isoflurane and subjected to the following treatments: G hypo = spinal anesthesia with hypobaric ropivacaine (0.5mL of 0.9% NaCl+0.5mL ropivacaine at 0.75%); G iso = isobaric spinal anesthesia (0.5mL of 0,906% NaCl+0.5mL ropivacaine at 0.75%); G hyper = hyperbaric spinal anesthesia (0.5mL of 10% glucose+0.5mL ropivacaine at 0.75%). After induction to anesthesia and maintenance with isoflurane, animals were positioned in right lateral recumbency for pulmonary artery catheterization through the left jugular vein. Spinal anesthesia was carried out with injection of 1mL of local anesthetic using a 22G Quincke tip needle in the L5-L6 space along 1 minute. Dogs were maintained under inhalation anesthesia for 60 minutes in ventral recumbency. HR, F R , MAP, CO, mPAP and body temperature progressively increased in all groups, whereas PCWP increased only in G HYPO at all time points. The TPRI showed significantly higher values in G ISO at M 1 , M 5 and M 10 compared to the other groups, except for M 5 , during which G ISO differed only from G HYPER . The PVRI increased at M 5 compared to M B in G ISO . Side effects such as unilateral motor deficit, bladder atony, excitation, acute pain and chemosis were observed. The hemodynamic changes were not relevant, although inhalation anesthesia with isoflurane might have influenced the results. The changes observed in the study demonstrate that motor blockade is likely to be obtained with isobaric and hyperbaric ropivacaine, thereby confirming the influence of baricity on the type of nerve fibers on the spinal cord. The isobaric solution results in a mixed blockade (motor and sensory blockade). Hemodynamic changes such as hypotension and bradycardia were not evidenced in this study, although local anesthetics were administered in low volumes and 1 Recebido em 21 de janeiro de 2016.Aceito para publicação em 7 de outubro de 2016.

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Complicações neurológicas determinadas pela anestesia subaracnóidea

Abstract: RESUMO

Cited by 18 publications

References 65 publications

Topography of the medullary cone of the feline night monkey: Clinical implications in epidural anesthesia

Topography of the medullary cone of the feline night monkey: Clinical implications in epidural anesthesia

Skeletopy of the medullary cone in Sapajus apella: Clinical implications in epidural anesthesia

Eficácia e efeitos hemodinâmicos da anestesia raquidiana com ropivacaína isobárica, hipobárica ou hiperbárica em cães anestesiados com isofluorano

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