tailieunhanh - Báo cáo y học: "Optical Coherence Tomography in ocular toxoplasmosis"

Tuyển tập các báo cáo nghiên cứu khoa học ngành y học tạp chí Medical Sciences dành cho các bạn sinh viên ngành y tham khảo đề tài: Optical Coherence Tomography in ocular toxoplasmosis. | Int. J. Med. Sci. 2009 6 137 International Journal of Medical Sciences 2009 6 3 137-138 Ivyspring International Publisher. All rights reserved Short Communication Optical Coherence Tomography in ocular toxoplasmosis Dominique Monnet Kristel Averous Emmanuelle Delair Antoine P. Brezin Centre Cochin Ambulatoire d Ophtalmologie - Hôpital Cochin Paris France Published Optical Coherence Tomography OCT is now a method of choice to asses conditions such as macular holes diabetic macular edema or central serous chorioretinopathy 1 . OCT measurements of retinal thickness have a good reproducibility as demonstrated in repeated examinations. The main application of OCT in inflammatory eye diseases is for the analysis of cystoid macular edema 2 3 . Ocular toxoplasmosis is the most frequent cause of posterior segment inflammation. 4 . Twenty-five consecutive patients seen in a single referral center between November 2003 and August 2004 were studied. Presumed ocular toxoplasmosis was diagnosed based on the clinical appearance of retinochor-oiditis and a positive serology. Lesions were presumed to be active in the presence of whitish edematous areas. 5 Fluorescein angiography was performed in active cases. Lesions were presumed to be scarred when pigmented and or atrophic. Areas of retinochoroiditis were further analyzed by the Zeiss OCT3 imager Humphrey-Zeiss San Leandro California USA . Two perpendicular scans centered on the lesion were performed. The length of scans was 3 or 6 mm according to the size of the lesion. The vit-reoretinal interface was analyzed and measures of retinal thickness were performed. Fourteen men and 11 women were included. The mean age was years. Fifteen patients 60 had had a previous episode of retinochoroiditis. Active lesions were observed in 16 subjects and scarred lesions in 9 subjects. Active areas appeared as hyper-reflective images which were localized in the retina in 15 cases and in the choroid in 1 case. Partial .

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