alexa Panretinal photocoagulation and intravitreal triamcinolone acetonide for the management of proliferative diabetic retinopathy with macular edema.
Diabetes & Endocrinology

Diabetes & Endocrinology

Journal of Diabetes & Metabolism

Author(s): Zein WM, Noureddin BN, Jurdi FA, Schakal A, Bashshur ZF

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Abstract PURPOSE: To investigate intravitreal triamcinolone acetonide (IVTA) as an adjunctive therapy to panretinal photocoagulation (PRP) in patients with both high-risk proliferative diabetic retinopathy (PDR) and clinically significant macular edema (CSME). METHODS: Thirty-five eyes diagnosed with both high-risk PDR and CSME underwent PRP and a single injection of 4 mg of IVTA (IVTA group). Visual, anatomic, and fluorescein angiographic changes were documented. Any complications resulting from the combined procedure were noted. These data were compared retrospectively to 35 eyes that underwent grid laser treatment to the macula followed 2 weeks later by PRP (laser group). Main outcome measures included change in best-corrected visual acuity, improvement in macular edema (clinical or angiographic), and control of the neovascular disease. RESULTS: Mean follow-up was 9.6 months for the IVTA group and 11.9 months for the laser group. Mean pretreatment best-corrected visual acuity was 20/286 in the IVTA group and 20/282 in the laser group (P = 0.80). After 9 months of follow-up, visual acuity was 20/80 in the IVTA group versus 20/156 in the laser group (P = 0.007). Thirty-four percent of eyes in the IVTA group had final vision of 20/40 or better versus 11\% in the laser group (P = 0.044). At 9 months follow-up, 84\% of IVTA eyes had complete resolution of macular edema versus 46\% of laser eyes (P = 0.002). Three eyes in the IVTA group had recurrence of macular edema after 6 months and required reinjection of IVTA. Elevation in intraocular pressure occurred in eight eyes in the IVTA group and responded to topical therapy. Cataract progression was observed in nine eyes in the IVTA group. CONCLUSIONS: The addition of intravitreal triamcinolone acetonide to PRP in the management of patients with both PDR and CSME seems promising. Further study is needed to assess the effect of this combined treatment.
This article was published in Retina and referenced in Journal of Diabetes & Metabolism

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