Uso de atracúrio para o bloqueio da musculatura extrínseca do bulbo ocular em cães submetidos à anestesia inalatória sob ventilação espontânea

Carregaro, Adriano Bonfim; Gerardi, Patrícia Molina; Mujalli, M.C.L.C.; Martins, Fernanda

doi:10.1590/s0102-09352006000600013

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…In small animals, it may be an alternative to systemic administration of neuromuscular blocking agents for ophthalmic surgery, with no interference on cardiovascular and respiratory functions (CARREGARO et al, 2006;OLIVA et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Selected ophthalmic and physiologic parameters in rabbits (Oryctolagus cuniculus) submitted to retrobulbar block with lidocaine, morphine or ketamine

Schaffer¹,

Silveira²,

Nunes³

et al. 2017

Biosci. J.

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ABSTRACT:The aim of the present study was to evaluate selected ophthalmic and physiologic parameters in rabbits submitted to retrobulbar blockade with lidocaine, morphine or ketamine. Eighteen adult rabbits, seven males and eleven females, New Zealand White breed, weighing 3.9 ± 0.7 kg were randomly assigned to perform the retrobulbar block according to the groups: LID (2% lidocaine without a vasoconstrictor -7 mg kg -1 ); MOR (1% morphine -1 mg kg -1 ) or KET (10% Ketamine -5 mg kg -1 ). Ophthalmic and physiologic parameters were assessed, including lacrimal production using Schirmer tear test (STT), corneal touch threshold (CTT), pupillary diameter, intraocular pressure (IOP), pulse rate (PR), respiratory rate (RR), oxyhemoglobin saturation (SpO 2 ), rectal temperature (RT) and systolic, mean and diastolic blood pressures (SAP, MAP and DAP) and were evaluated every 10 minutes for 70 minutes. All drugs used in the present study promoted central positioning of the eyeball for up to one minute later the retrobulbar administration in all cases. There was a significant increase of STT values in MOR and LID, when compared to baseline, while the CTT values had a significant decrease in all groups. KET kept the IOP values unaltered at the time points and there was a significant decrease of pupillary diameter in MOR. There was no significant change in PR, RR and SpO 2 ; however, LID presented significantly lower values of SAP. MOR had increased values for RT when compared to the other two groups. The established parameters may help in ophthalmic procedures using retrobulbar nerve blocks.

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Section: Introductionmentioning

confidence: 99%

Selected ophthalmic and physiologic parameters in rabbits (Oryctolagus cuniculus) submitted to retrobulbar block with lidocaine, morphine or ketamine

Schaffer¹,

Silveira²,

Nunes³

et al. 2017

Biosci. J.

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“…The choice of low doses of neuromuscular blockers has advantages if a selective paralysis could be achieved, permitting adequate ventilation while the eye is centralized (CARREGARO et al, 2006). This facilitates the performance of intraocular surgeries and diminishes risks to the anesthetized patient.…”

Section: Introductionmentioning

confidence: 99%

“…In a preliminary study (CARREGARO et al, 2006), three doses of atracurium (25, 50 and 75μg kg -1 ) were tested and found to cause eyeball centralization without complete blockade of the intercostal and diaphragmatic muscles. The time of centralization increased with dose, that was 38, 65 and 78min, respectively.…”

Section: Introductionmentioning

confidence: 99%

Cardiopulmonary effects and eyeball centralization with low-dose atracurium in spontaneously breathing, anesthetized dogs

et al. 2010

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

Oliva

Andrade

Bevilacqua

et al. 2010

Arq. Bras. Med. Vet. Zootec.

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RESUMODesenvolveu-se uma técnica de bloqueio peribulbar comparando-a à técnica de anestesia oftálmica com bloqueio neuromuscular parcial em cães submetidos à facectomia extracapsular. Doze cães, de diferentes raças, foram alocados em dois grupos (G1 e G2) e anestesiados com acepromazina (0,05mg/kg, IV) e propofol (5mg/kg, IV) e mantidos com isofluorano sob ventilação espontânea. Os cães do G1 receberam o bloqueio peribulbar com ropivacaína 0,75%, e os do G2 o bloqueio neuromuscular parcial com brometo de pancurônio (0,01mg/kg, IV). Utilizaram-se, como parâmetros comparativos, escores de posicionamento do globo ocular, controle do reflexo oculocardíaco e pressão intraocular (mmHg). Foi possível propor uma técnica eficaz para cães baseando-se na técnica de bloqueio peribulbar posterior realizada no homem. Em ambos os grupos, o globo ocular permaneceu centralizado. Não ocorreram alterações eletrocardiográficas atribuídas ao reflexo oculocardíaco. Houve redução significativa da pressão intraocular em G1 após o bloqueio (10,7±0,6 e 14,7±0,6). Conclui-se que o bloqueio peribulbar proporcionou condições cirúrgicas apropriadas para a realização da facectomia, com a vantagem de promover bloqueio sensitivo do olho.Palavras-chave: cão, bloqueio peribulbar, ropivacaína, brometo de pancurônio, facectomia ABSTRACT A peribulbar block technique was developed and its clinical efficacy was compared with neuromuscular blockade in dogs undergoing cataract surgery. Twelve dogs of different breeds were randomly and equally allocated in two groups. After given acepromazine (0.05mg/kg, IV), anesthesia was induced withpropofol (5mg/kg, IV) and maintained with isoflurane in oxygen during spontaneous breathing. A peribulbar block with 0.75% ropivacaine was performed in G1 dogs while partial neuromuscular blockade with pancuronium (0.01mg/kg IV) was provided in G2 dogs. Globe position scores, oculocardiac reflex, and intra-ocular pressure (mmHg)

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Uso de atracúrio para o bloqueio da musculatura extrínseca do bulbo ocular em cães submetidos à anestesia inalatória sob ventilação espontânea

Cited by 3 publications

References 9 publications

Selected ophthalmic and physiologic parameters in rabbits (Oryctolagus cuniculus) submitted to retrobulbar block with lidocaine, morphine or ketamine

Selected ophthalmic and physiologic parameters in rabbits (Oryctolagus cuniculus) submitted to retrobulbar block with lidocaine, morphine or ketamine

Cardiopulmonary effects and eyeball centralization with low-dose atracurium in spontaneously breathing, anesthetized dogs

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

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