oclusão artério-venosa da retina após bloqueio retrobulbar: relato de dois casos combined central retinal vein and artery occlusion after retrobulbar anesthesia: report of two cases

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ID: 232234
2005
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Abstract
São descritos dois casos de oclusão artério-venosa da retina após cirurgia intra-ocular. As duas pacientes foram submetidas à anestesia peribulbar. Devido à sensação dolorosa e à mobilidade ocular foi necessário a realização de bloqueio retrobulbar. Ao final da cirurgia, ambas receberam injeção subconjuntival de gentamicina associada à dexametasona. No primeiro dia pós-cirúrgico as pacientes apresentaram arreflexia pupilar e acuidade visual de percepção luminosa, sendo referidas para nosso serviço. A confirmação do diagnóstico de oclusão vascular retiniana mista foi feito por meio do exame de retinografia fluorescente. As pacientes não manifestaram, em nenhum momento, alterações neurológicas, porém a perda visual foi grave e permanente. Por meio da descrição cirúrgica, da história clínica e dos achados oftalmoscópicos e angiográficos discutem-se as possíveis causas desta grave lesão vascular retiniana, dando ênfase à presumida injeção de anestésico na bainha do nervo óptico durante o bloqueio retrobulbar. Ao mesmo tempo, abordam-se medidas preventivas para evitar tal complicação.
Two cases of combined central retinal artery and vein occlusion after intraocular surgery are described. Both patients were submitted to peribulbar anesthesia. Due to the painful sensation and ocular mobility retrobulbar anesthesia was necessary. At the end of the surgery both patients received a subconjunctival injection of gentamicin associated with dexamethasone. On the very first day after the surgery the two patients showed pupillary areflexia and visual acuity of luminous perception when they were referred to our service. The confirmation of the diagnosis of combined vascular occlusion of the retina was obtained by fluorescein angiography test. The two patients never showed, any neurological alteration. However visual loss was severe and permanent. By means of surgical description, clinical history, fundus photography and fluorescein angiography we are able to discuss the possible causes of this severe retinal vascular injury emphasizing the presumed anesthesic injection that was given into the optical nerve during retrobulbar anesthesia. At the same time we discuss preventive measures to avoid such problem.
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Authors ;Rogil José de Almeida Torres;Andréa Luchini;Wilma Weis;Paulo Roberto Frecceiro;Marcelo Casella
Journal introducing innodb cluster: learning the mysql high availability stack
Year 2005
DOI
10.1590/S0004-27492005000200020
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492005000200020
Keywords
nerve block visual acuity anesthesia local case reportophthalmology bloqueio nervoso

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