PMID- 23394906 OWN - NLM STAT- MEDLINE DCOM- 20130604 LR - 20220317 IS - 1879-1891 (Electronic) IS - 0002-9394 (Print) IS - 0002-9394 (Linking) VI - 155 IP - 5 DP - 2013 May TI - Characterization of microaneurysm closure after focal laser photocoagulation in diabetic macular edema. PG - 905-12 LID - S0002-9394(12)00859-8 [pii] LID - 10.1016/j.ajo.2012.12.005 [doi] AB - PURPOSE: To characterize microaneurysm closure following focal laser photocoagulation in diabetic macular edema (DME) using simultaneous fluorescein angiography (FA) and spectral-domain optical coherence tomography (SD-OCT). DESIGN: Retrospective observational case series. METHODS: Leaking microaneurysms (n = 123) were analyzed in eyes (n = 29) with nonproliferative diabetic retinopathy (NPDR) that underwent navigated focal laser photocoagulation in DME and were followed at 3, 6, and 12 months. Closure of diabetic microaneurysms was characterized in detail following focal laser using SD-OCT. RESULTS: Closure rate of microaneurysms by both FA and SD-OCT was 69.9% (84/123), 79.7% (98/123), and 82.9% (102/123) at 3, 6, and 12 months, respectively. Microaneurysm closure rate increased at 6 and 12 months compared to 3 months (P < .003, P < .001). Over half of closed microaneurysms (45/86, 52.3%) left hyperreflective spots while the remaining half (41/86, 47.7%) disappeared without any hyperreflectivity by SD-OCT at 3 months. Hyperreflective spots decreased at 6 (36/99, 36.4%) and 12 months (17/102, 16.7%) with a concomitant increase in complete loss of reflectivity at 6 (63/99, 63.6%) and 12 months (85/102, 83.3%). Smaller outer and inner diameters and heterogeneous lumen reflectivity were positively associated with microaneurysm closure at 12 months (P < .0001, P < .001, P < .03). CONCLUSIONS: Characterization of microaneurysms following focal laser photocoagulation resulted in hyperreflective spots and complete resolution of all reflectivity using SD-OCT. Smaller microaneurysms and those with heterogeneous lumen were positively associated with microaneurysm closure. These findings provide greater understanding of localized retinal changes following focal laser photocoagulation in DME treatment. CI - Copyright (c) 2013 Elsevier Inc. All rights reserved. FAU - Lee, Su Na AU - Lee SN AD - Department of Ophthalmology, Jacobs Retina Center at Shiley Eye Center, University of California San Diego, La Jolla, CA 92037, USA. FAU - Chhablani, Jay AU - Chhablani J FAU - Chan, Candy K AU - Chan CK FAU - Wang, Haiyan AU - Wang H FAU - Barteselli, Giulio AU - Barteselli G FAU - El-Emam, Sharif AU - El-Emam S FAU - Gomez, Maria L AU - Gomez ML FAU - Kozak, Igor AU - Kozak I FAU - Cheng, Lingyun AU - Cheng L FAU - Freeman, William R AU - Freeman WR LA - eng GR - R01EY020617/EY/NEI NIH HHS/United States GR - R01 EY018589/EY/NEI NIH HHS/United States GR - R01EY018589/EY/NEI NIH HHS/United States GR - R01EY007366/EY/NEI NIH HHS/United States GR - R01 EY007366/EY/NEI NIH HHS/United States GR - R01 EY020617/EY/NEI NIH HHS/United States GR - P30 EY022589/EY/NEI NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20130206 PL - United States TA - Am J Ophthalmol JT - American journal of ophthalmology JID - 0370500 SB - IM MH - Aneurysm/complications/*diagnosis/surgery MH - Diabetic Retinopathy/complications/diagnosis/*surgery MH - Female MH - Fluorescein Angiography MH - Follow-Up Studies MH - Fundus Oculi MH - Humans MH - *Laser Coagulation MH - Macular Edema/diagnosis/etiology/*surgery MH - Male MH - Middle Aged MH - Retina/*pathology MH - *Retinal Artery MH - Retrospective Studies MH - Tomography, Optical Coherence MH - Visual Acuity PMC - PMC3627831 MID - NIHMS443911 EDAT- 2013/02/12 06:00 MHDA- 2013/06/05 06:00 PMCR- 2014/05/01 CRDT- 2013/02/12 06:00 PHST- 2012/08/10 00:00 [received] PHST- 2012/11/30 00:00 [revised] PHST- 2012/12/05 00:00 [accepted] PHST- 2013/02/12 06:00 [entrez] PHST- 2013/02/12 06:00 [pubmed] PHST- 2013/06/05 06:00 [medline] PHST- 2014/05/01 00:00 [pmc-release] AID - S0002-9394(12)00859-8 [pii] AID - 10.1016/j.ajo.2012.12.005 [doi] PST - ppublish SO - Am J Ophthalmol. 2013 May;155(5):905-12. doi: 10.1016/j.ajo.2012.12.005. Epub 2013 Feb 6.