RESUMO
We report the trans-operative approach and short-term outcome of a patient who suffered a traumatic avulsion of the cilioretinal artery branch during the surgical management of a cilioretinal arterial branch occlusion (CRABO) with intraocular embolectomy. A patient with acute CRABO underwent a pars plana vitrectomy with in situ embolectomy. The blocked artery was incised using 25 gauge vertical scissors, and embolus manipulation was done using microsurgical forceps. During embolus extraction, the occluded cilioretinal artery and its branch were inadvertently avulsed and torn with subsequent intense bleeding. Laser and endodiathermy were used for acute hemostasis. The maneuvers created an unintended retinochoroidal anastomosis. Visual field improvement was noted 3 months after the surgery. In the event of a complicated surgical embolectomy with the avulsion of the artery, the formation of a retinochoroidal anastomosis and reperfusion of the occluded may occur along with the improvement of visual fields in some cases.
Assuntos
Corpo Ciliar/lesões , Embolectomia/efeitos adversos , Oclusão da Artéria Retiniana/etiologia , Artéria Retiniana/lesões , Idoso , Humanos , MasculinoRESUMO
Relatamos o caso de um paciente com hematúria franca, sem causa evidente, que ao exame ocular apresentava comunicaçäo arteriovenosa retiniana no olho direito. Os autores discutem a associaçäo do envolvimento retiniano com lesöes semelhantes em outros órgäos
Assuntos
Humanos , Masculino , Adulto , Hematúria , Artéria Retiniana/lesõesRESUMO
Pudemos examinar paciente de 63, negro, do sexo masculino com macroaneurisma da artéria cílio-retiniana em OD. Ele relatava ser portador de hipertensäo arterial e tinha severo comprometimento da vascularizaçäo retiniana com cruzamentos arterio-venosos patológicos e arteríolas em fio de cobre. Desde que os macroaneurismas retinianos foram descritos em 1973 encontramos apenas 2 casos na literatura. Existem várias hipóteses para a raridade do macroaneurisma neste local. Possivelmente o acometimento da artéria cílio-retiniana seja devido a um comprometimento vascular severo generalizado com grave repercussäo na vascularizaçäo retiniana
Assuntos
Humanos , Masculino , Idoso , Aneurisma/patologia , Artéria Retiniana/lesõesRESUMO
Four patients had central retinal artery occlusions after retrobulbar anaesthesia with lidocaine HCl was administered before photocoagulation. One of these four had two separate episodes of closure. Only one had permanent visual loss and none had evidence of retrobulbar hemorrhage. Each patient had a severe hematologic or vascular disorder. We think that direct trauma to the central retinal artery behind the globe, the pharmacologic or compressive effects of the injected solution,or both caused the occlusions in these patients. (AU)