The Effect of Vitrectomy and Arteriovenous Adventitial Sheathotomy for Branch Retinal Vein Occlusion. |
Tae Ho Choi, Young Wook Cho |
Department of Ophthalmology, Daegu Fatima Hospital, Daegu, Korea. ywcho2@kornet.net |
망막분지정맥폐쇄에서 유리체절제술과 동정맥 외막초절개술의 효과 |
최태호 ( Tae Ho Choi ) , 조영욱 ( Young Wook Cho ) |
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Abstract |
PURPOSE We evaluated the effect of vitrectomy and arteriovenous adventitial sheathotomy for branch retinal vein occlusion (BRVO) according to operation timing and obstruction site. METHODS: We performed vitrectomy and arteriovenous adventitial sheathotomy in 14 eyes with BRVO. Patient selection criteria were foveal involvement of macular hemorrhage or macular edema and a best corrected visual acuity (BCVA) of 0.1 or less. We compared 7 eyes with symptom duration of 2 months or less (Group 1) and 7 eyes with symptom duration of more than 2 months (Group 2). We analyzed 7 eyes for which the obstruction site was 1 disc diameter (DD) or less from the disc margin (Group A) and 7 eyes of more than 1 DD (Group B). RESULTS: Seven of 14 eyes (50%) had visual improvement. Six eyes of Group 1 (86%) had visual improvement and Group 1 had better visual improvement than Group 2. There was a statistically significant difference between Groups 1 and 2 (p=0.029). Five eyes of Group A (71%) had visual improvement and Group A had better visual improvement than Group B. There was no statistically significant difference (p=0.286). CONCLUSIONS: In the case of foveal involvement of macular hemorrhage or macular edema and a BCVA of 0.1 or less, vitrectomy and arteriovenous adventitial sheathotomy are effective in early BRVO. |
Key Words:
Arteriovenous adventitial sheathotomy;Branch retinal vein occlusion;Vitrectomy |