Intravitreal bevacizumab and panretinal photocoagulation for proliferative diabetic retinopathy associated with vitreous hemorrhage

Abstract

Purpose: To evaluate the efficacy of intravitreal bevacizumab with panretinal photocoagulation (PRP) in the treatment of proliferate diabetic retinopathy (PDR) with vitreous hemorrhage (VH).

Methods: Forty cases (40 patients) with PDR and persistent VH were prospectively enrolled, with a follow-up period of 12 months or more. Intravitreal bevacizumab injection (1.25 mg) was given, followed by PRP when visualization of peripheral fundus could be obtained. A second injection was administered 4 weeks to 6 weeks after the first injection if no signs of VH decrease were noted. Vitrectomy was performed if VH persisted >12 weeks. The vitreous clear-up time (VCUT) and the rate of vitrectomy were compared with those in a historical control group (40 eyes in 40 patients) who were treated with conventional methods.

Results: Thirty-one eyes had 1 injection and 9 eyes (22.5%) received 2 injections. Vitreous clear-up time in the study and control groups were 11.9 +/- 9.5 weeks and 18.1 +/- 12.7 weeks (P = 0.02), respectively. Rates of required vitrectomy were 10% in the study group and 45% in the control group (P = 0.01).

Conclusion: One or 2 intravitreal injections of 1.25 mg bevacizumab with PRP are associated with rapid regression of VH and may reduce the need for vitrectomy.