Ranibizumab in retinal angiomatous proliferation (RAP): influence of RAP stage on visual outcome

Juan Reche-Frutos, Cristina Calvo-Gonzalez, Silvia Pérez-Trigo, Cristina Fernandez-Perez, Juan Donate-Lopez, Julian Garcia-Feijoo
European Journal of Ophthalmology 2011, 21 (6): 783-8

PURPOSE: To evaluate the influence of retinal angiomatous proliferation (RAP) stage on visual and anatomic outcome after ranibizumab (Lucentis®).

METHODS: This was a prospective study on consecutively diagnosed RAP eyes at the Hospital Clínico San Carlos, Madrid. Best-corrected visual acuity (BCVA) and optical coherence tomography (OCT) are performed monthly. Indocyanine green angiography (ICG) and fluorescein angiography (FA) are performed at baseline and every 3 months thereafter. A starting dose of a monthly ranibizumab injection in the first 3 months is followed by retreatment in case of intraretinal edema, subretinal fluid, or pigment epithelium detachment (PED) in OCT, increased leakage in FA, or a hot spot in ICG.

RESULTS: A total of 53 eyes from 49 patients were included. The mean change in BCVA at 12 months was +7.3, +0.83, and -2.1 letters in stages IIA (21 cases), II B (18 cases), and III (14 cases), respectively. After adjusting the change in BCVA according to baseline BCVA, ß coefficient was -6.012 letters (p=0.025) in stage IIB and -9.762 letters (p=0.003) in stage III vs stage IIA. Four cases had a retinal pigment epithelium tear after injection of ranibizumab.

CONCLUSIONS: Patients in stage II without PED have a better visual and anatomic evolution than patients in stage II with PED and stage III.

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