RESUMO
PURPOSE: To report on two cases of treatment-refractory juxtapapillary hemagioblastomas that were managed with intra-arterial bevacizumab delivered via the ophthalmic artery. OBSERVATIONS: Case 1 is a 35 year-old man with juxtapapillary hemangioblastoma who continued to have progressive tractional retinal detachment, optic nerve neovascaularization and cystoid macula edema (CME) despite heavy prior treatment with intravitreal anti-vascular endothelial growth factor (VEGF) and steroid intravitreal injections and laser. Case 2 is a 41 year-old woman with juxtapapillary hemangioblastoma who had progressive tractional retinal detachment, CME and visually-threatening intraocular pressure elevation despite treatment with anti-VEGF injection and laser. Both cases were treated with three infusions of intra-arterial bevacizumab delivered via the ophthalmic artery. Both tumors demonstrated measurable decrease in height, stability of their secondary retinal changes and minimal requirement for additional treatment at 30 mos and 26 mos follow-up, respectively for cases 1 and 2. CONCLUSIONS AND IMPORTANCE: These cases suggest that higher-dose, targeted delivery of anti-VEGF to hemangioblastomas via ophthalmic artery injection may be useful in stabilizing the disease and abating the typical progression of secondary retinal pathology, at least in the first two years after treatment.
RESUMO
PURPOSE: To report a case of late failure of a posterior segment placed Ahmed valve in a uveitic eye with a corneal graft and a minimally invasive, ab interno approach in restoring valve function, pressure control, and preservation of vision. DESIGN: Case report. METHODS: A 25 gauge trans-conjunctival 3-port pars plana vitrectomy was performed to inspect and clean the ostium of the Ahmed valve of any vitreous debris. The Ahmed valve was not disturbed externally and conjunctival dissection was not performed. A 27-gauge blunt cannula was introduced through the vitrector site and used to cannulate the tube and flush it with balanced salt solution. A bleb was immediately re-established and all instruments were removed requiring no sutures. RESULTS: Intraocular pressure returned to target levels and a filtration bleb was re-established. Corneal graft clarity was restored with resolution of preoperative microcystic edema. Postoperative inflammation was minimal and vision was restored. CONCLUSIONS: A nonfunctioning tube shunt residing in the vitreous cavity may be revised ab interno without disturbing the shunt placement or the conjunctiva under which it resides to re-establish filtration.