Lima GV, Colas CMG

Language: Spanish
References: 12
Page: 142-145
PDF size: 82.55 Kb.

ABSTRACT

Background. Diabetic macular edema is treated with focal photocoagulation; in some patients, edema increases after photocoagulation. We identified whether central foveal thickness before treatment was different between eyes whose edema increased after photocoagulation and those where edema did not increase. Methods. Optical coherence tomograms performed on the day of photocoagulation and three weeks after in patients with edema were reviewed. Patients whose edema did not increase were assigned to group 1 and patients whose edema increased were assigned to group 2. Central foveal thickness before treatment was compared among groups (Mann-Whitney’s U). Results. 50 eyes (mean age 63.3), 37 of females (64%), 26 of patients with arterial hypertension (52%), 18 with proliferative retinopathy. Mean central foveal thickness in group 1 (n = 31) before photocoagulation was 251.7 µm and 201.9 µm after it; mean central foveal thickness in group 2 (n = 19) was 170.7 µm before photocoagulation (p = 0.001) and 219.6 µm after it. Baseline variables comparison only showed a difference in the proliferative retinopathy rate (42 vs. 26.3%). Discussion. Against the expected result, central foveal thickness before photocoagulation was greater in patients without edema increase; central foveal thickness after photocoagulation and macular volumes were not statistically different among groups. Although there was a statistical difference, it would be sensible to look for other factors that might take part in edema increase after photocoagulation.

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