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JOURNAL ARTICLE
OBSERVATIONAL STUDY
Submacular hemorrhage and grape-like polyp clusters: factors associated with reactivation of the lesion in polypoidal choroidal vasculopathy.
Eye 2017 December
PurposeThe purpose of this study is to investigate the factors associated with reactivation of the lesion during the first year in patients with polypoidal choroidal vasculopathy (PCV) treated with intravitreal ranibizumab.Patients and methodsThis retrospective observational study included 84 eyes diagnosed with PCV and treated with 3-monthly ranibizumab injections. Only those patients who exhibited complete resolution of fluid after initial treatment and were followed up at least 12 months were included. The baseline characteristics of the patients, including their age and sex, location of the polyps, greatest linear dimensions of the lesions, largest polyp diameter, choroidal vascular hyperpermeability, submacular hemorrhages ≥1 disc area in size, presence of grape-like polyp clusters, central foveal thickness, and best-corrected visual acuity were compared between patients with and without reactivation of the lesion.ResultsDuring the 12-month follow-up period, reactivation of the lesion was observed in 60 patients (71.4%). The first reactivation was noted at a mean duration of 3.9±1.7 months after the third ranibizumab injection. Cox regression analysis revealed that the absence of submacular hemorrhages ≥1 disc area (P=0.009), presence of grape-like polyp clusters (P=0.002), and greatest linear dimension of the lesions (P=0.019) were associated with reactivation of the lesion.ConclusionThe absence of submacular hemorrhages, presence of grape-like polyp clusters, and large lesion size at diagnosis were associated with a high risk of reactivation of PCV in patients treated with intravitreal ranibizumab. Patients exhibiting these characteristics may require close monitoring.
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