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Intravitreal injection of recombinant tissue plasminogen activator in submacular hemorrhage: case series
Joana Araújo1, Cristina Sousa1, Pedro Alves Faria1,2
1Ophthalmology Department, S. João Hospital, Porto - Portugal.
Purpose:
To report the safety and efficacy of intravitreal recombinant tissue plasminogen activator (rtPA) with gas for managing submacular hemorrhage.
Methods:
Patients with submacular hemorrhage centered in or close to the fovea underwent hemorrhage displacement with intravitreal injection of rtPA (50 μg/0.05 mL) followed by gas injection (0.3 mL SF6). Anatomic and visual outcomes are described.
Results:
Exudative age-related macular degeneration (AMD) (n = 4) and blunt trauma (n = 2) were the etiologies of submacular hemorrhage in this sample. Intravitreal injection of rtPA decreased the extent of submacular hemorrhage in all eyes, with complete hemorrhage displacement in 2 and partial displacement in 4. Visual acuity remained stable (n = 4) or improved (n = 2) after the procedure. Improvements in anatomic and visual outcomes were less evident in exudative AMD cases, which also had longer hemorrhage duration. Recurrence occurred only in 1 eye. No evident rtPA-associated retinal toxicity was observed.
Conclusions:
Untreated submacular hemorrhage has poor visual prognosis. Our results suggest that rtPA injection is a minimally invasive, simple, inexpensive procedure with few related complications. Cost-benefit of this injection seems acceptable.
