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  • Title: Comparison of subretinal versus intravitreal injection of recombinant tissue plasminogen activator with gas for submacular hemorrhage secondary to wet age-related macular degeneration: treatment outcomes and brief literature review.
    Author: Tranos P, Tsiropoulos GN, Koronis S, Vakalis A, Asteriadis S, Stavrakas P.
    Journal: Int Ophthalmol; 2021 Dec; 41(12):4037-4046. PubMed ID: 34331185.
    Abstract:
    PURPOSE: Contradictory evidence exists over the best approach for the management of submacular hemorrhage (SMH). In this study, we compared the outcomes of subretinal versus intravitreal injection of recombinant tissue plasminogen activator (r-tPA) and gas in cases of SMH secondary to age-related macular degeneration (AMD). METHODS: Twenty five eyes with SMH were retrospectively divided in 2 groups. Group A underwent vitrectomy, subretinal r-tPA and gas (Vitrectomy group, n = 14), and group B received intravitreal r-tPA and gas (Pneumatic group, n = 11). SMH displacement and change in subfoveal hemorrhage thickness (SFHT) at 1 month post-op were assessed. Additionally, best corrected visual acuity (BCVA) and central retinal thickness (CRT) at the end of the 12 month follow-up (FU) were analyzed. Clinical and epidemiological prognostic factors were tested. RESULTS: Mean duration of SMH prior intervention was 8.2(± 7.3) days. Baseline BCVA was 1.53 ± 0.73 LogMAR, mean extension of SMH was 4.604 ± 2079 μm and mean CRT pre-treatment was 795 ± 365 μm. SMH displacement at 1 month post-treatment was total in 9/14 versus 6/11 and partial in 4/14 versus 2/11 in Group A and Group B, respectively (Fisher's exact test p = 0.38). SFHT reduced by 404 ± 312 μm in Group A versus 376 ± 405 μm in group B (p = 0.86). BCVA improvement and reduction of CRT were highly significant at the end of FU (p = 0.002 and p < 0.001 respectively) but did not differ between the 2 groups. Only baseline BCVA and preoperative CRT proved to be significant prognostic factors for the final functional outcome (p = 0.013 and p = 0.047 respectively). CONCLUSION: Both treatment options proved equal efficacy in displacing SMH in AMD. A multicenter trial may delineate a desirable algorithm of treatment.
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