|Title||Effect of glycosylated hemoglobin on response to ranibizumab therapy in diabetic macular edema: real-world outcomes in 312 patients.|
|Publication Type||Journal Article|
|Year of Publication||2018|
|Authors||Shalchi, Z, Okada, M, Bruynseels, A, Palethorpe, D, Yusuf, A, Hussain, R, Herrspiegel, C, Scazzarriello, A, Habib, A, Amin, R, Rajendram, R|
|Journal||Can J Ophthalmol|
|Date Published||2018 08|
|Keywords||Aged, Angiogenesis Inhibitors, Biomarkers, Diabetic Retinopathy, Female, Follow-Up Studies, Glycated Hemoglobin A, Humans, Intravitreal Injections, Macula Lutea, Macular Edema, Male, Middle Aged, Ranibizumab, Retrospective Studies, Tomography, Optical Coherence, Treatment Outcome, Vascular Endothelial Growth Factor A, Visual Acuity|
OBJECTIVE: To investigate the effect of serum glycosylated hemoglobin (HbA1c) on the outcomes of ranibizumab therapy for diabetic macular edema (DME).DESIGN: Retrospective cohort study.PARTICIPANTS: Patients receiving ranibizumab injections for centre-involving DME in a National Health Service setting.METHODS: The Moorfields OpenEyes database was used to study eyes with DME treated with ranibizumab from October 2013 to November 2015 at the Moorfields City Road, Ealing, Northwick Park, and St George's Hospital sites. Only eyes receiving a minimum of 3 injections and completing 12 months of follow-up were included. If both eyes received treatment, the first eye treated was analyzed. When both eyes received initial treatment simultaneously, random number tables were used to select the eye for analysis. HbA1c was tested at the initiation of ranibizumab treatment. Multivariate regression analysis was used to identify relationships between HbA1c and the outcome measures.OUTCOMES: The primary outcome was change in visual acuity (VA) Early Treatment of Diabetic Retinopathy study (ETDRS) letters. The secondary outcomes were change in central subfield thickness (CSFT) and macular volume (MV), as well as number of injections in year 1.RESULTS: Three hundred and twelve eyes of 312 patients were included in the analysis. HbA1c was not related to change in VA (p = 0.577), change in CSFT (p = 0.099), change in MV (p = 0.082), or number of injections in year 1 (p = 0.859).CONCLUSIONS: HbA1c is not related to functional or anatomical outcomes at 1 year in DME treated with ranibizumab.
|Alternate Journal||Can. J. Ophthalmol.|
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