Two-step widefield fundus fluorescein angiography-assisted laser photocoagulation in pediatric retinal vasculopathy: A pilot study

Author:

Peng Jie,Ren Jianing,Zhang Xuerui,Yang Yuan,Zou Yihua,Xiao Haodong,Xu Yu,Zhao Peiquan

Abstract

PurposeTo introduce the procedures of two-step fundus fluorescein angiography (FFA) and evaluate its utility in the management of pediatric retinal vasculopathy.Materials and methodsIn this retrospective study, medical records of 12 patients who received two-step FFA were studied. The two-step FFA consisted of step 1 [low-dose (LD)] FFA at an intravenous dose of 1.5 mg/kg fluorescein, followed by step 2 [reduced dose (RD)] FFA at a dose of 6.2 mg/kg fluorescein. Demographic data, including age, gender, diagnosis, weight, gestational age, birth weight, and weight on the examination day were taken, were collected. The results of two-step FFA and treatment were recorded.ResultsA total of 20 eyes were studied. The top 5 common FFA changes in RD-FFA included peripheral avascular zone (15 eyes), fluorescein leakage (10 eyes), supernumerous vascular branching (10 eyes), neovascularization (NV) (8 eyes), and absence of the foveal avascular zone (6 eyes). LD-FFA was efficient to show all the NV without severe vitreous dye in 8/8 (100.0%) eyes with NV, partial peripheral avascular zone in 11/15 (73.3%) eyes, while RD-FFA always offered more information in all the eyes. Thirteen eyes had laser photocoagulation under the guidance of LD-FFA. In 4 (30.8%) eyes, RD-FFA revealed more lesions and an immediate relaser was performed. Laser photocoagulation was successfully performed in all the 13 eyes in one session without being rearranged. After a median follow-up of 28.1 months, all the eyes were in a stable status.ConclusionStep-one LD-FFA acted as a pre-FFA to show the NV, and step-two RD-FFA acted as a double-check. The modified strategy may be a helpful clinical adjuvant in the laser photocoagulation of pediatric retinal disorders, especially for young ophthalmologists.

Publisher

Frontiers Media SA

Subject

General Medicine

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