Anestesia peribulbar com ropivacaína como alternativa ao bloqueio neuromuscular para facectomia em cães

Oliva, Valéria Nobre Leal de Souza; Andrade, Alexandre Lima de; Bevilacqua, Lilian; Matsubara, Lídia Mitsuko; Perri, Sílvia Helena Venturoli

doi:10.1590/s0102-09352010000300013

Cited by 7 publications

(17 citation statements)

References 16 publications

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“…The literature mentions that the use of retrobulbar block in cataract surgery may, in addition to its known analgesic and anesthetic purposes (KANEMAKI et al, 2000, SMITH et al, 2004OLIVA et al, 2010), promote discreet proptosis of the bulb, improving stability and increasing the exposure of the cornea (HAZRA et al, 2008;OLIVA et al, 2010). In this study, the anesthetic volume used proved sufficient to provide anesthesia and analgesia as well as good exposure of the eye bulb, and it performed similarly in all treatments.…”

Section: Discussionsupporting

confidence: 56%

“…In contrast, Mota et al (2009) and Oliva et al (2010), who performed the peribulbar block with 0.5% and 0.75% ropivacaine in cats and dogs, respectively, did not observed this symptom. Because ropivacaine is considered to be devoid of toxicity (AKERMAN;HELLBERG;TROSSVIK, 1988;LEW;VLOKA;HADŽIC, 2001;TORRES, 2006) even when used for ocular topical anesthesia (MARTINI et al, 2002), we assume that the symptoms observed may be related to the use of drugs of the same origin that differ from those used by Mota et al (2009) and Oliva et al (2010).…”

Section: Discussionmentioning

confidence: 80%

“…The centralization of the eye and maintenance of intraocular pressure are all essential in intraocular surgery (SMITH et al, 2004;HAZRA et al, 2008;OLIVA et al, 2010) and thus have motivated the search for feasible and safe anesthetic techniques for this purpose. Among these techniques, ocular regional blocks are often used in humans, but the procedure is still restricted in small animal veterinary medicine (OLIVA; ANDRADE; GABAS, 2003;ACCOLA et al, 2006;KLAUMANN et al, 2008;OLIVA et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…Among these techniques, ocular regional blocks are often used in humans, but the procedure is still restricted in small animal veterinary medicine (OLIVA; ANDRADE; GABAS, 2003;ACCOLA et al, 2006;KLAUMANN et al, 2008;OLIVA et al, 2010). Accola et al (2006) studied three techniques of regional eye anesthesia, including peribulbar and retrobulbar, which motivated additional research (KANEMAKI et al, 2000, SMITH et al, 2004HAZRA et al, 2008;KLAUMANN et al, 2008;OLIVA et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…Among the various techniques of anesthesia, regional blocks in dogs represent a viable alternative adjuvant for anesthesia in eye surgery (KANEMAKI et al, 2000;GABAS, 2003;ACCOLA et al, 2006;OLIVA et al, 2010). Accola et al (2006) studied two techniques of retrobulbar block and one of peribulbar block in dogs and concluded that the inferior temporal technique was superior to the other techniques evaluated.…”

Section: Introductionmentioning

confidence: 99%

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Ocular effects of retrobulbar block with different local anesthetics in healthy dogs

et al. 2014

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The objective of this study was to evaluate the ocular effects, the feasibility and the quality of retrobulbar block using the inferior temporal technique with different local anesthetics applied with the Tuohy epidural needle in dogs. Eight dogs were included in the experiment and each one was studied four times, with interval of 15 days between the treatments: Lido -2% lidocaine, Ropi -0.75% ropivacaine, Bupi -0.5% racemic bupivacaine and Levo -0.75% levobupivacaine. Except for the ropivacaine, all of the local anesthetics contained epinephrine at 1:200.000. The blocks were performed in the right eyes immediately after anesthetic induction, and the left eyes were not blocked and were used as controls. The intraocular pressure, tear production and corneal sensitivity were evaluated before any procedure (T0), 30 min after premedication (TMPA), 30 min after anesthetic induction (T30), after recovery from anesthesia (TREC), every 60 min up to 360 min and 12 and 24 h after the block. The pupil diameter was evaluated at the same time points, excepted at T0. The maximum pupillary dilatation was observed in Lido group at T120 followed by Ropi at TREC, and Bupi and Levo at T30. All of the anesthetics maintained eye pressure within acceptable levels for normal dogs and significantly reduced tear production. Tear production returned earliest in group Lido, followed by Bupi, Ropi and Levo. The corneal sensitivity returned earliest in group Lido, followed by Ropi, Bupi and Levo. The retrobulbar block using the temporal inferior technique proved to be feasible and safe, although lubrication of the ocular surface is suggested. Key words: Bupivacaine, dogs, levobupivacaine, lidocaine, ropivacaine ResumoO objetivo deste estudo foi avaliar os efeitos oculares, a exequibilidade e qualidade do bloqueio retrobulbar pela técnica inferior temporal, em cães, com diferentes anestésicos locais empregando-se agulha epidural de Tuohy. Oito cães foram incluídos no experimento e cada um foi estudado quatro vezes, com intervalo de 15 dias entre os tratamentos: Lido -lidocaína a 2%; Ropi -ropivacaína a 0,5%, Bupi -bupivacaína racêmica a 0,5% e Levo -levobupivacaína a 0,75%. Com exceção da ropivacaína, todos os anestésicos continham epinefrina 1:200.000. Os bloqueios foram realizados nos olhos direitos dos animais imediatamente após a indução anestésica, e os olhos esquerdos, não bloqueados, foram utilizados como controle. Avaliou-se a pressão intraocular, a produção lacrimal e a sensibilidade corneal antes de qualquer procedimento (T0), 30 min após a medicação pré-anestésica (TMPA), 30 min após a indução anestésica (T30), após a recuperação da anestesia (TREC), a cada 60 min até 360 min e 12 e 24 h após o bloqueio. O diâmetro pupilar foi avaliado nos mesmos momentos, exceto no T0. A máxima dilatação pupilar foi observada no grupo Lido seguida pelos grupos Ropi, Bupi e Levo. Todos os anestésicos mantiveram a pressão ocular dentro dos níveis normais para cães e reduziram significativamente a produção lacrimal. A produção lacrimal reto...

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Section: Discussionsupporting

confidence: 56%

Section: Discussionmentioning

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ocular effects of retrobulbar block with different local anesthetics in healthy dogs

et al. 2014

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Analgesic effects of a retrobulbar block with 0.75% ropivacaine in dogs undergoing enucleation

Scott

Vallone

Olson

et al. 2021

Veterinary Anaesthesia and Analgesia

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A morphometric study of the canine skull and periorbita and its implications for regional ocular anesthesia

Klaumann

Moreno

Montiani‐Ferreira

2017

Veterinary Ophthalmology

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Objective A hypothetical relationship between canine cranial length and the length of the periorbita could be used for intraconal anesthetic volume estimation. Study subjects Forty-one canine cadaver heads and one macerated dog skull. Procedures Inion and nasion points were recognized in the macerated skull and used as landmarks for cranial length measure. Thirty cadavers classified as dolichocephalic, mesaticephalic and brachycephalic were distributed in three study groups. Anatomic references of the skull shapes were recognized and parameters measured: body weight (BW), cranial length (L cr ) and length of the periorbita (L po ). Results were compared and statistical analyses were performed to find correlations between BW and the skull parameters. Contrast medium was injected in another 11 cadavers with a total volume calculated based on L cr (10 cadavers) or BW (one cadaver) and then submitted to computerized tomography examination to compare techniques, estimate the capacity of the intraconal space of the periorbita and to illustrate practical implications. Results There is a positive correlation between BW and L po (P < 0.001) as well as between L cr and L po (P < 0.0001). Linear regression of the variable BW predicts only 71% of the variable L po (r 2 = 0.71), whereas the variable L cr predicts 88% (r 2 = 0.88)Conclusions This study demonstrated a mathematical relation between L cr and L po . A method for calculating anesthetic solution volumes based on canine morphometric features is presented. The formula 0.1 mL/cm L cr to calculate total intraconal anesthetic volume is suggested.

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Anestesia peribulbar com ropivacaína como alternativa ao bloqueio neuromuscular para facectomia em cães

Cited by 7 publications

References 16 publications

Ocular effects of retrobulbar block with different local anesthetics in healthy dogs

Ocular effects of retrobulbar block with different local anesthetics in healthy dogs

Analgesic effects of a retrobulbar block with 0.75% ropivacaine in dogs undergoing enucleation

A morphometric study of the canine skull and periorbita and its implications for regional ocular anesthesia

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