Effects of auriculopalpebral nerve block on ocular parameters in dogs

The objective of this study was to compare the effects of two local anesthetics used on auriculopalpebral block on eyelid akinesia, tear production, intraocular pressure (IOP) and tear break-up time (TBUT) in conscious dogs. A blind, randomized, prospective study was conducted to determine the effec...

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Main Authors: Laura da Costa Luz, Andréia Vitor Couto do Amaral, Jéssica Ribeiro Guimarães, Anne Caroline Assis Silva, Carolina Araújo Neves, Lanay Coímbra Cangussu, Doughlas Regalin
Format: Article
Language:English
Published: Universidade Federal de Uberlândia 2021-12-01
Series:Bioscience Journal
Subjects:
Online Access:https://seer.ufu.br/index.php/biosciencejournal/article/view/54175
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author Laura da Costa Luz
Andréia Vitor Couto do Amaral
Jéssica Ribeiro Guimarães
Anne Caroline Assis Silva
Carolina Araújo Neves
Lanay Coímbra Cangussu
Doughlas Regalin
author_facet Laura da Costa Luz
Andréia Vitor Couto do Amaral
Jéssica Ribeiro Guimarães
Anne Caroline Assis Silva
Carolina Araújo Neves
Lanay Coímbra Cangussu
Doughlas Regalin
author_sort Laura da Costa Luz
collection DOAJ
description The objective of this study was to compare the effects of two local anesthetics used on auriculopalpebral block on eyelid akinesia, tear production, intraocular pressure (IOP) and tear break-up time (TBUT) in conscious dogs. A blind, randomized, prospective study was conducted to determine the effects of auriculopalpebral block using ropivacaine 0.75% and bupivacaine 0.5% in 12 healthy non-brachycephalic dogs (24 eyes). Threat response and eyelid reflex tests, Schirmer tear test (STT), IOP and tear break-up time were conducted before blockage and at 30, 60, 120, 240 and 360 minutes after application. A difference was observed between the values found at 30, 60, 120 and 240 minutes compared to baseline for threat response and eyelid reflex tests in the two groups evaluated, proving eyelid akinesia after blockages. No difference was found for STT, IOP and TBUT between baseline values and post-anesthesia times or between groups. It was possible to conclude that ropivacaine and bupivacaine on auriculopalpebral block in conscious dogs promoted eyelid akinesia for at least 240 minutes, not altering ocular physiological parameters of tear production, intraocular pressure, and tear break-up time after blockages.
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spelling doaj.art-9b74615dd0c343699ee0619afa6a35df2022-12-21T18:46:58ZengUniversidade Federal de UberlândiaBioscience Journal1981-31632021-12-0137e37073e3707310.14393/BJ-v37n0a2021-5417528280Effects of auriculopalpebral nerve block on ocular parameters in dogsLaura da Costa Luz0Andréia Vitor Couto do Amaral1Jéssica Ribeiro Guimarães2Anne Caroline Assis Silva3Carolina Araújo Neves4Lanay Coímbra Cangussu5Doughlas Regalin6Universidade Federal de JataíUniversidade Federal de JataíUniversidade Federal de JataíUniversidade Federal de JataíUniversidade Federal de JataíUniversidade Federal de JataíFederal University of JataíThe objective of this study was to compare the effects of two local anesthetics used on auriculopalpebral block on eyelid akinesia, tear production, intraocular pressure (IOP) and tear break-up time (TBUT) in conscious dogs. A blind, randomized, prospective study was conducted to determine the effects of auriculopalpebral block using ropivacaine 0.75% and bupivacaine 0.5% in 12 healthy non-brachycephalic dogs (24 eyes). Threat response and eyelid reflex tests, Schirmer tear test (STT), IOP and tear break-up time were conducted before blockage and at 30, 60, 120, 240 and 360 minutes after application. A difference was observed between the values found at 30, 60, 120 and 240 minutes compared to baseline for threat response and eyelid reflex tests in the two groups evaluated, proving eyelid akinesia after blockages. No difference was found for STT, IOP and TBUT between baseline values and post-anesthesia times or between groups. It was possible to conclude that ropivacaine and bupivacaine on auriculopalpebral block in conscious dogs promoted eyelid akinesia for at least 240 minutes, not altering ocular physiological parameters of tear production, intraocular pressure, and tear break-up time after blockages.https://seer.ufu.br/index.php/biosciencejournal/article/view/54175bupivacainedoglocorregional anesthesiaropivacaine.
spellingShingle Laura da Costa Luz
Andréia Vitor Couto do Amaral
Jéssica Ribeiro Guimarães
Anne Caroline Assis Silva
Carolina Araújo Neves
Lanay Coímbra Cangussu
Doughlas Regalin
Effects of auriculopalpebral nerve block on ocular parameters in dogs
Bioscience Journal
bupivacaine
dog
locorregional anesthesia
ropivacaine.
title Effects of auriculopalpebral nerve block on ocular parameters in dogs
title_full Effects of auriculopalpebral nerve block on ocular parameters in dogs
title_fullStr Effects of auriculopalpebral nerve block on ocular parameters in dogs
title_full_unstemmed Effects of auriculopalpebral nerve block on ocular parameters in dogs
title_short Effects of auriculopalpebral nerve block on ocular parameters in dogs
title_sort effects of auriculopalpebral nerve block on ocular parameters in dogs
topic bupivacaine
dog
locorregional anesthesia
ropivacaine.
url https://seer.ufu.br/index.php/biosciencejournal/article/view/54175
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