期刊
AMERICAN JOURNAL OF OPHTHALMOLOGY
卷 156, 期 1, 页码 106-115出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ajo.2013.02.008
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PURPOSE: To compare safety and functional outcomes of vitrectomy with or without preoperative intravitreal bevacizumab (IVB) for proliferative diabetic retinopathy (PDR). DESIGN: A meta-analysis of randomized controlled trials. METHODS: PubMed, Medline, EMBASE, and Cochrane Controlled Trials Register were searched to identify potentially relevant randomized controlled trials. A total of 394 participants with 414 eyes in 8 trials were analyzed using Rev Man 5.1 software. The primary measures included intraoperative bleeding, total surgical time, and early and late recurrent hemorrhage.. RESULTS: Vitrectomy with IVB pretreatment achieved shorter overall surgical time (mean difference = -26.89 minutes, 95% confidence interval [CI] -31.38 to -22.39, P < .00001) and smaller number of endodiathermy applications (mean difference = -3.46, 95% CI -6.43 to -0.49, P = .02) compared to vitrectomy alone. The IVB group was also associated with less intraoperative bleeding (odds ratio [OR] = 0.10; 95% CI 0.02 to 0.46; P = .003) and recurrent vitreous hemorrhage within first month (OR = 0.35; 95% CI 0.21 to 0.58; P < .0001), but the proportion of recurrent vitreous hemorrhage after the first month was comparable between both groups. There were no significant differences in other complication rates between the 2 groups, with the exception of iatrogenic retinal break, which was more likely with the vitrectomy-alone group (OR = 0.27, 95% CI 0.12 to 0.63, P = .003). Results were robust to sensitivity analyses. CONCLUSIONS: Adjuvant intravitreal injection of bevacizumab prior to vitrectomy in PDR patients significantly eased the procedure, diminished intraoperative complications, and reduced early postoperative hemorrhage without increasing the risk of vision-threatening complications. Further trials should determine the optimal interval and dosage for IVB injection. (C) 2013 by Elsevier Inc. All rights reserved.
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