RESUMO
PURPOSE: To investigate the hemostatic effects of SF6 gas in preventing postoperative vitreous hemorrhage in diabetic vitrectomy. METHODS: A prospective, randomized study of 33 diabetic eyes with vitreous hemorrhage, treated by vitrectomy. In 17 of our cases SF6 20% was injected into the eye at the end of the operation, while in 16 cases BSS remained in the vitreous cavity. RESULTS: The incidence of vitreous hemorrhage recurrence was 17.6% for the SF6 group and 12.5% for the BSS group (statistically not significant). Progression of lens opacities was observed in 23.5% of the SF6 group, and in 18.8% of the BSS group (statistically not significant, with a higher incidence in the SF6 group). CONCLUSIONS: SF6 gas did not show hemostatic effects in the cases studied. Furthermore, it may have contributed to cataract progression. Therefore we suggest that the use of SF6 is not recommended as a treatment modality in preventing new vitreous hemorrhage after diabetic vitrectomy.
Assuntos
Retinopatia Diabética/cirurgia , Técnicas Hemostáticas , Hexafluoreto de Enxofre/uso terapêutico , Vitrectomia , Hemorragia Vítrea/prevenção & controle , Adulto , Idoso , Idoso de 80 Anos ou mais , Catarata/fisiopatologia , Retinopatia Diabética/sangue , Feminino , Hemostasia , Humanos , Pressão Intraocular , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Recidiva , Hexafluoreto de Enxofre/efeitos adversos , Acuidade Visual , Corpo Vítreo/efeitos dos fármacos , Hemorragia Vítrea/sangueRESUMO
PURPOSE: To evaluate the presence and the evolution of cyst formation in optic disc pit maculopathy. METHODS: In this prospective study, 18 cases with optic disc pit maculopathy were studied. Five of them showed cyst formation in the fovea at the initial examination. The fundus findings were documented with slit-lamp biomicroscopy, indirect ophthalmoscopy, and stereoscopic photography of the posterior pole. All 5 patients were treated with a macular scleral buckle procedure. RESULTS: The presence of cysts in the elevated macula depends on the grade of the disease. Cyst formation can develop not only in the later stage of the disease but also quite early. In all 5 patients cyst formation gradually decreased and finally disappeared after the surgical procedure. CONCLUSIONS: Cyst formation is an entity which accompanies the macular detachment associated with optic disc pit. The development of the cysts has been noticed after the establishment of the schisis-like separation and before or in conjunction with the formation of a lamellar macular hole which usually accompanies the optic disc pit maculopathy.
Assuntos
Cistos/patologia , Macula Lutea/patologia , Disco Óptico/anormalidades , Doenças do Nervo Óptico/patologia , Adolescente , Adulto , Cistos/cirurgia , Diagnóstico Diferencial , Feminino , Humanos , Macula Lutea/cirurgia , Masculino , Doenças do Nervo Óptico/congênito , Doenças do Nervo Óptico/cirurgia , Estudos Prospectivos , Recurvamento da Esclera , Acuidade VisualRESUMO
PURPOSE: To describe a case of retinal perivasculitis in an immunocompetent patient with systemic herpes simplex infection. METHODS: Polymerase chain reaction amplifications were performed for aqueous and blood samples using primers specific for the following members of the herpesvirus family: cytomegalovirus, Epstein-Barr virus, herpes simplex virus (types 1 and 2), and varicella-zoster virus. The patient was placed on intravenous acyclovir and systemic corticosteroids. RESULTS: A positive polymerase chain reaction signal was found only for herpes simplex virus type 1. Vision in the left eye improved from light perception to 20/25, and signs of retinal perivasculitis resolved. CONCLUSION: The use of molecular diagnostic modalities in clinical practice may aid in determining infectious etiologies in patients with atypical clinical manifestations.
