A Prospective Study on Retinopathy of Prematurity in a Teritiary Care Center

Background: Retinopathy of prematurity (ROP) is a vaso-proliferative retinopathy which occurs mostly in premature babies. The pathological change in ROP is peripheral retinal neovascularisation which may regress completely or leave sequelae from mild myopia to bilateral total blindness. International classification of ROP helped in uniform documentation and staging of ROP. In India, the incidence of ROP is between 38 and 51.9 p.c among low-birth-weight infants. Aim & Objectives: To estimate the incidence of ROP among premature and / or low birth weight babies who were born and admitted to neonatal intensive care unit and attending neonatal follow-up clinic.Subjects and Methods:A hospital based, prospective analytical cross-sectional study was conducted in Department of Pediatrics at Shadan Institute of Medical Sciences, Teaching hospital and research center, Hyderabad, Telangana for a period of 6 months from 1st October 2018 to 31st March 2019. Prior to the study initiation, ethical clearance was obtained and written consent was taken from the parents of the respective babies. The study subjects included premature babies (less than or equal to 35 weeks of gestation) or low birth weight babies (less than or equal to 1500 grams). A predesigned, pre-tested, semi-structured proforma was used to collected the data. The data was collected, entered in Microsoft excel-2013 and analyzed using SPSS version-22 (trial). Data was presented in percentages, proportions and figures.Result:The ROP incidence in the study group was reported among 17.1 p.c of the study subjects.Conclusion:Low birth weight and prematurity are important risk factors for ROP.

The Protective Effect of Thiamine Pryophosphate Against Sugar-Induced Retinal Neovascularisation in Rats

The aim of this study was to investigate the effect of thiamine pyrophosphate (TPP), administered via sugar water, on retinal neovascularisation in rats. Animals were assigned to three groups, namely the TPP sugar-water group (TPSWG, n = 12), the control group (CG, n = 12) and the healthy group (HG, n = 12). The TPSWG was injected intraperitoneally with TPP once a day for 6 months. CG and HG rats were given distilled water in the same way. TPSWG and CG rats were left free to access an additional 0.292 mmol /ml of sugar water for 6 months. The fasting blood glucose (FBG) levels of the animals were measured monthly. After 6 months, biochemical, gene expression and histopathologic analyses were carried out in the retinal tissues removed from the animals after they were killed. The measured FBG levels were 6.96 ± 0.09 mmol/ml (p < 0.0001 vs. HG), 6.95 ± 0.06 mmol/ml (p < 0.0001 vs. HG) and 3.94 ± 0.10 mmol/ml in the CG, TPSWG and HG groups, respectively. The malondialdehyde (MDA) levels were found to be 2.82 ± 0.23 (p < 0.0001 vs. HG), 1.40 ± 0.32 (p < 0.0001 vs. HG) and 1.66 ± 0.17 in the CG, TPSWG and HG, respectively. Interleukin 1 beta (IL-1β) gene expression was increased (3.78 ± 0.29, p < 0.0001) and total glutathione (tGSH) was decreased (1.32 ± 0.25, p < 0.0001) in the retinal tissue of CG compared with TPSWG (1.92 ± 0.29 and 3.18 ± 0.46, respectively). Increased vascularisation and oedema were observed in the retinal tissue of CG, while the retinal tissues of TPSWG and HG rats had a normal histopathological appearance. A carbohydrate-rich diet may lead to pathological changes in the retina even in nondiabetics, but this may be overcome by TPP administration.

Severe vaso-occlusive retinopathy associated with systemic lupus erythematosus

Introduction. Systemic lupus erythematosus (SLE) is a systemic idiopathic autoimmune inflammatory disease, with multiple organ involvement. Severe vaso-occlusive retinopathy is a rare, sight threatening lupus-related manifestation of the disease, which is more common in patients with coexisting antiphospholipid syndrome. Case report. We reported a 36-year-old female with severe vaso-occlusive retinopathy that manifested in the absence of antiphospholipid syndrome. In a 4-year follow-up, despite aggressive systemic corticosteroid and immunosuppressive therapy and panretinal laserphotocoagulation treatment, the disease progressed to retinal neovascularisation, neovascular vitreoretinopathy, neovascular glaucoma and, consecutively, severe visual loss. As the final option for preservation of visual function, pars plana vitrectomy with laserphotocoagulation was performed and had good results. Progression of ophthalmological findings indicated the progression of the systemic disease, as well as neurolupus. Conclusion. Severe vaso-occlusive retinopathy occurred as the ophthalmological manifestation of SLE in the absence of antiphospholipid syndrome, but correlated with neurolupus and led to visual deterioration despite the treatment.