Two-Year Outcomes of Transcutaneous Non-Image Guided Bleomycin Sclerotherapy in Conjunctival Lymphatic Malformations: A Protocol-Based Management in 16 Eyes.

Abstract

To study the efficacy and the 2-year outcomes of treating conjunctival lymphatic malformations (LM) with protocol-based bleomycin sclerotherapy. A retrospective interventional study of 16 eyes with conjunctival LM treated with bleomycin sclerotherapy between December 2016 and 2019. A clinical resolution was assessed as poor (less than 25% decrease in size), fair (25%-50% decrease in size), good (50%-75% decrease in size), excellent (more than 75% decrease in size), and complete resolution. Mean age at presentation was 18 ± 13.09 (15 years, 3 to 59 years) years. The conjunctival component was classified based on clinical appearance as conjunctival mass (12) and microcystic LM (4). Mean clock hours of involvement were 3.32 ± 5.29 clock hours (4, 2-9 clock hours). An average per session dose of 1.8 ± 0.3 IU (median 2 IU, range 1-2 IU) and a cumulative dose of 3 ± 1.5 IU (3, 1-6 IU) of bleomycin were injected over an average of 1.6 ± 0.7 (median 2, range 1-3) treatment sessions per patient. Excellent response was observed in 11 (69%) cases. A residual lesion requiring surgical debulking was noted in 1 case. Recurrence was noted in 2 (13%) cases one of which was treated with repeat sclerotherapy resulting in complete resolution. Adverse reactions included restricted extraocular motility in extreme gaze in 2 eyes (13%). Sustained tumor resolution was observed over a mean follow-up of 29.24 + 9.45 months (24, 24-38 months). Bleomycin sclerotherapy gives excellent response in conjunctival LMs and is an effective first-line therapy in these cases.