Displacement of submacular hemorrhage secondary to age-related macular degeneration with subretinal injection of air and tissue plasminogen activator

Abstract

Submacular hemorrhage (SMH) can lead to devastating visual loss in patients with age-related macular degeneration. We retrospectively evaluated the surgical outcomes of vitrectomy with subretinal injection of tissue plasminogen activator, bevacizumab, and air in 13 cases. Visual prognosis, anatomical results obtained with optical coherence tomography (OCT), and their correlations were investigated. We analyzed OCT parameters including SMH height, pigment epithelial detachment (PED) height and width, and status of ellipsoid zone (EZ) line. Complete displacement of SMH was achieved in 12 eyes. At 3 months post-surgery, best-corrected visual acuity (BCVA) and SMH height exhibited significant improvements (P < 0.01). In eyes with preoperative SMH height < 300 µm and a detectable EZ line, BCVA was significantly improved at as early as 1 month, whereas the remaining eyes exhibited visual improvements only at 3 months. Postoperative BCVA positively correlated with preoperative BCVA (r = 0.86, P < 0.005), and negatively correlated with SMH size (r = 0.69, P < 0.01) and PED height (r = 0.58, P < 0.05) and width (r = 0.67, P < 0.05). Multivariate analyses confirmed preoperative BCVA as the predominant factor associated with postoperative BCVA (β = 1.093, P < 0.05). In conclusion, significant improvements in BCVA and anatomical findings can be achieved with our reported surgical technique. Preoperative OCT findings may influence the duration required for visual improvements.