Abstract

This paper aims to compare the effects of three treatment modalities for a submacular hemorrhage (SMH) secondary to exudative age-related macular degeneration (AMD). Seventy-seven patients with an SMH were divided into three groups: small-sized (optic disc diameter (ODD) ≥ 1 to < 4), medium-sized (ODD ≥ 4 within the temporal arcade) and large-sized (ODD ≥ 4, exceeding the temporal arcade). Patients received anti-vascular endothelial growth factor (anti-VEGF) monotherapy, pneumatic displacement (PD) with anti-VEGF or a vitrectomy with a subretinal tissue plasminogen activator (tPA) and gas tamponade based on the surgeon’s discretion. The functional and anatomical outcomes were evaluated. Among the 77 eyes, 45 eyes had a small-sized, 21 eyes had a medium-sized and 11 eyes had a large-sized SMH. In the small-sized group, all treatment modalities showed a gradual best-corrected visual acuity (BCVA) improvement with high hemorrhagic regression or displacement rates (over 75%). In the medium-sized group, PD and surgery were associated with better BCVA with more displacement than anti-VEGF monotherapy (67% and 83%, respectively, vs. 33%). In the large-sized group, surgery showed a better visual improvement with a higher displacement rate than PD (86% vs. 25%). Our findings demonstrated that visual improvement can be expected through appropriate treatment strategy regardless of the SMH size. In cases with a larger SMH, invasive techniques including PD or surgery were more advantageous than anti-VEGF monotherapy.

Highlights

  • Submacular hemorrhage (SMH) is one of the severe complications in patients with neovascular age-related macular degeneration (AMD)

  • Regarding the AMD lesions, the small-sized group showed a higher percentage of polypoidal choroidal vasculopathy (PCV) (66.7%) than choroidal neovascularization (CNV) (33.3%)

  • A combination of pneumatic displacement (PD) with anti-VEGF and/or an intravitreal tissue plasminogen activator (tPA) injection was applied in all subgroups (26.7% in the small, 42.8% in the medium- and 36.4% in the large-sized groups)

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Summary

Introduction

Submacular hemorrhage (SMH) is one of the severe complications in patients with neovascular age-related macular degeneration (AMD). As it physically separates the neurosensory retina from the retinal pigment epithelium (RPE) layer, the resulting barrier effect interferes with the diffusion of nutrients and metabolites [1]. The shearing of the photoreceptor from enmeshed fibrin and iron toxicity in the retina due to the blood cause photoreceptor death leading to a poor visual prognosis [1,2]. Various treatment modalities for SMH have been developed. Anti-vascular endothelial growth factor (anti-VEGF) drugs affect the underlying choroidal neovascularization (CNV) and treat the SMH [4]. Single or combined modalities have been used to treat the SMH

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