| Retinal Vascular Caliber Changes on OCT after Intravitreal Bevacizumab Injection in Diabetic Macular Edema. |
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Young Jun Kim, Hyoung Eun Kim, Won Kyung Song, Sung Soo Kim |
1Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea. semekim@yuhs.ac
2Department of Ophthalmology, CHA Bundang Medical Center, CHA University, Seongnam, Korea. |
| 당뇨황반부종에서 안내 베바시주맙 치료 후 빛간섭단층촬영을 이용한 망막 혈관 직경의 변화 |
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김영준1⋅김형은1⋅송원경2⋅김성수1 |
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Department of Ophthalmology, Yonsei University College of Medicine1, Seoul, Korea Department of Ophthalmology, CHA Bundang Medical Center, CHA University2, Seongnam, Korea |
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| Abstract |
PURPOSE
To investigate retinal vascular caliber changes with Spectral Domain OCT after intravitreal bevacizumab injection in diabetic macular edema patients. METHODS: Thirty-four eyes of 29 diabetic macular edema patients who were intravitreously injected with bevacizumab (1.25 g/0.05 ml) were studied. Twenty-four fellow eyes of 24 patients with bevacizumab injection were also recruited as a control group. We measured retinal vascular caliber a distance of 0.5-1 disc sizes from the disc margin with Spectral Domain OCT at baseline and 1-month and 3-month follow-up visits. Central macular thicknesses were also measured. RESULTS: Over the 3 months of study, there was a significant reduction of arteriolar caliber compared to baseline (p = 0.024), There was significant reduction of venular caliber at 1 month (p = 0.001) and 3 months (p = 0.000) compared to baseline. Venular caliber reduction at the 3-month follow-up was significantly correlated with central macular thickness (R = 0.487, p = 0.003). CONCLUSIONS: Retinal venular caliber reduction was significant at 1- and 3-month follow-up, and arteriolar caliber reduction was significant at 3-month follow-up compared to baseline. After 3 months of treatment, venular caliber reduction was correlated with reduction of central macular thickness. |
| Key Words:
Central macular thickness;Retinal arteriolar caliber;Retinal venular caliber |
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