DANIEL ARAUJO FERRAZ
Projetos de Pesquisa
Unidades Organizacionais
LIM/33 - Laboratório de Oftalmologia, Hospital das Clínicas, Faculdade de Medicina
6 resultados
Resultados de Busca
Agora exibindo 1 - 6 de 6
conferenceObject Infra-red photography retinal abnormalities and inner nuclear layer microcystic retinal degeneration in eyes with band atrophy of the optic nerve(2014) MONTEIRO, Mario L. R.; SOUSA, Rafael Miranda Miranda; FERRAZ, Daniel Araujo; RAJAGOPALAN, Nithya; SADIQ, Mohammad Ali; SEPAH, Yasir; Quan Dong Nguyen; TAKAHASHI, Walter Y.- Use of intravitreal bevacizumab or triamcinolone acetonide as a preoperative adjunct to vitrectomy for vitreous haemorrhage in diabetics(2013) FERRAZ, Daniel Araujo; MORITA, Celso; PRETI, Rony Carlos; NASCIMENTO, Vinicius Paganini; MAIA JUNIOR, Otacilio Oliveira; BARROS, Andre Carvalho de; TAKAHASHI, Beatriz Sayuri; TAKAHASHI, Walter YukihikoPurpose: To evaluate the effect of preoperative intravitreal bevacizumab (IVB) or triamcinolone (IVT) on the rate of early postvitrectomy hemorrhage in proliferative diabetic retinopathy (PDR). Methods: Eligible eyes were assigned randomly to 1 of 3 groups: the IVB group received 1.25 mg bevacizumab, the IVT group received 4,0mg triamcinolone and the control group underwent a sham procedure. The primary outcome measure was the incidence of early postvitrectomy hemorrhage. Secondary outcome measures included changes in visual acuity (BCVA) and adverse events. Results: Twenty and seven eyes, 9 in each group were randomized. The incidence of vitreous hemorrhage was lower in the IVB group (p=0.18). Postoperative vitreous hemorrhage at 1 month also was less in the IVB group compared with the control group (p >= 0.05). The rate of bleeding immediately after surgery was higher in IVT group with 4 (44.4%) cases. The overall mean visual acuity was 1.72 +/- 0.37 logMAR preoperatively and 1.32 +/- 0.73 logMAR in 6 months after surgery. Accessing visual acuity by group evidenced that the IVB group had initial mean logMAR VA of 1.87 and 1.57 logMAR VA at the six months (p = 0.84). In IVT group, initial mean VA was 1.75 logMAR and 0.96 logMAR VA at six months (p <= 0.001). And in control group, the initial mean VA was 1.85 logMAR and 1.57 logMAR VA at six months (p= 0.34). Conclusion: Intravitreal injection of bevacizumab 1 week before vitrectomy seems to reduce the incidence of early postvitrectomy hemorrhage in diabetic patients. There was a better visual acuity outcome in the triamcinolone group.
- Ultra-high resolution optical coherence tomography analysis of bull's eye maculopathy in chloroquine users(2014) MORITA, Celso; FERRAZ, Daniel Araujo; IGAMI, Thais Zamudio; TAKAHASHI, Beatriz Sayuri; ARANTES, Tiago Faria e; TAKAHASHI, Walter YukihikoPurpose: Register and compare anatomical changes, structural and quantitative found in optical coherence tomography Stratus and Topcon 3D in chronic users of chloroquine. Methods: Five patients were diagnosed with toxic ""bull's eye"" maculopathy was submitted to macular optical coherence tomography examination (Stratus and Topcon 3D). Results: Both tools demonstrated an increase reflectivity of choriocapillaris unit just foveal retinal pigment epithelium atrophy. However, Topcon 3D provided to all patients better description of the line corresponding to the transition between inner and outer segments of photoreceptors. Using the possibility of assembling threedimensional images and subtraction selective retinal layers, we found a lesion with a target that reflects the greater thickness of retinal pigment epithelium in central and parafoveal region that is matched to preserve macular photoreceptors. Conclusion: it was observed better resolution and faster image capture by Topcon 3D than Stratus OCT, that provided more detailed analysis of the line corresponding to transition between outer and inner segment of photoreceptors in macular region. With Topcon 3D, it was possible to evaluate soundly the thickness of retinal pigment epithelium in central and parafoveal region that caused an increase reflectivity of choriocapillaris creating a image with a target unpublished before.
conferenceObject Contrast sensitivity evaluation in high-risk treatment-naive proliferative diabetic retinopathy treated with panretinal photocoagulation with and without intravitreal Ranibizumab.(2014) FERRAZ, Daniel Araujo; VASQUEZ, Lisa; MOTTA, Augusto; PRETI, Rony C.; SOPHIE, Raafay; BITTENCOURT, Millena Gomes; MONTEIRO, Mario L. R.; TAKAHASHI, Walter Y.conferenceObject Short-Term Effects of Intravitreal Bevacizumab in Contrast Sensitivity of Patients with Diabetic Macular Edema and Optimizing Glycemic Control(2018) MOTTA, Augusto; BONANOMI, Maria Teresa B. C.; FERRAZ, Daniel Araujo; PRETI, Rony Carlos; SOPHIE, Raafay; MEDINA, Flavio Mac Cord; ABALEM, Maria Fernanda; QUEIROZ, Marcia; PIMENTEL, Sergio Luis G.; TAKAHASHI, Walter Yukihiko; DAMICO, Francisco Max- Idiopathic polypoidal choroidal vasculopathy masquerading as choroidal tumors: one year follow-up of a peripheral lesion(2015) PRETI, Rony Carlos; MONTEIRO, Mario Luiz Ribeiro; MORITA, Celso; HELAL JUNIOR, John; ZACHARIAS, Leandro Cabral; FERRAZ, Daniel Araujo; PELAYES, David E.; TAKAHASHI, Walter YukihikoThis case report describes peripheral idiopathic polypoidal choroidal vasculopathy (IPCV) with a collection of small aneurysmal dilations that masqueraded as choroidal tumors in an elderly patient. A 68-year-old African American woman was referred to us with a suspected diagnosis of asymptomatic vascular choroidal tumor and choroidal capillary hemangioma, affecting the temporal peripheral fundus. Upon examination, optical coherence tomography (OCT) revealed two large hemorrhagic pigment epithelium detachments (PED), and indocyanine green angiography (ICG) confirmed the diagnosis of IPCV. One year later, there was reduction in the hemorrhagic pigment epithelium detachments and the lesion took on a different appearance, resembling a choroidal osteoma. No treatment was necessary despite the presence of multiple polyps. IPCV is a rare condition that can resemble other choroidal diseases depending on the stage of presentation. OCT is the best tool to determine the characteristics of the lesions, and indocyanine green angiography should be used to confirm the diagnosis. Not all cases require treatment.