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목적 : To analyze differences in ultra-widefield fluorescein angiographic findings between patients with recurrent post-vitrectomy diabetic vitreous hemorrhage (PVDVH) and patients with non-post-vitrectomy diabetic vitreous hemorrhage (NPVDVH).
방법 : 44-eyes were included in this retrospective cross-sectional study. Patients were categorized as PVDVH when vitreous hemorrhage recurred after diabetic vitrectomy. Age-matched control diabetic patients, in whom vitreous hemorrhage did not recur, were assigned to the NPVDVH group. Baseline characteristics such as BCVA, follow-up duration, and HbA1C levels were compared between groups. And peripheral angiographic findings such as peripheral neovascularization, non-perfusion, and late peripheral vascular leakage were analyzed by ultra-widefield fluorescein angiography (UWFFA)
결과 : A total of 44 eyes were included this study: 20 with PVDVH and 24 with NPVDVH. Preoperative BCVA, postoperative BCVA, follow-up duration and HbA1C levels were not different between the two groups. The rate of peripheral neovascularization was significantly different between groups (PVDVH; 40.0%, NPVDVH; 8.3%, p =0.027). The rate of peripheral non-perfusion was significantly greater in PVDVH eyes than in NPVDVH eyes (80.0% vs. 37.5%, p =0.005). In addition, the rate of late peripheral vascular leakage was also significantly greater in PVDVH eyes than in NPVDVH eyes (90.0% vs. 29.2%, p < 0.001).
결론 : Compared with diabetic vitrectomized eyes that did not recurred vitreous hemorrhage, PVDVH eyes had a higher rate of peripheral neovascularization, peripheral non-perfusion, and late peripheral vascular leakage. Therefore, it is important to assess peripheral retinal vessels by UWFFA after diabetic vitrectomy. Furthermore, in cases of peripheral neovascularization, peripheral non-perfusion, and late peripheral vascular leakage, additional treatment may be necessary to prevent PVDVH.
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