影响增殖性糖尿病视网膜病变玻璃体切除术后视力改善的因素

摘要

目的:分析影响增殖性糖尿病视网膜病变(PDR)玻璃体切除术后视力改善的因素.方法:回顾性分析.收集2014-01/2014-12在马来西亚吉打州,亚罗士打Sultanah Bahiyah医院收治的PDR行玻璃体切除术病例资料,包括1y内患者统计,基线视力(VA)和LogMAR术后最佳矫正视力.使用IBM SPSS Statistics Version 22.0进行数据分析.结果:共103例患者.平均年龄51.2y.在多变量分析中,每个0 logMAR基线VA的1 logMAR术前正偏差与0.859 logMAR的术后改善相关(P<0.001).同样,术前附着的黄斑与玻璃体切除术后的logMAR视力改善相关(b=0.374,P=0.003).无虹膜新血管和无术后并发症与玻璃体切除术后改善的logMAR视力相关,分别为1.126(P=0.001)和0.377(P=0.005).无长效眼内填充与玻璃体切除术后logMAR视力改善相关,为0.302(P=0.010).结论:玻璃体切除术后与视力改善的相关因素是:术前视力较差,黄斑附着,无虹膜新生血管,无术后并发症和未使用长效眼内填充物.了解视力改善的因素将有助于玻璃体视网膜手术的决策.%AIM: To identify factors predicting visual improvement post vitrectomy for sequelae of proliferative diabetic retinopathy (PDR).METHODS: This was a retrospective analysis of pars plana vitrectomy indicated for sequelae of PDR from Jan.to Dec.2014 in Hospital Sultanah Bahiyah,Alor Star,Kedah,Malaysia.Data collected included patient demographics,baseline visual acuity (VA) and post-operative logMAR best corrected VA at 1y.Data analysis was performed with IBM SPSS Statistics Version 22.0.RESULTS: A total of 103 patients were included.The mean age was 51.2y.On multivariable analysis,each pre-operative positive deviation of 1 logMAR from a baseline VA of 0 logMAR was associated with a post-operative improvement of 0.859 logMAR (P<0.001).Likewise,an attached macula pre-operatively was associated with a 0.374 (P=0.003) logMAR improvement post vitrectomy.Absence of iris neovascularisation and absence of post-operative complications were associated with a post vitrectomy improvement in logMAR by 1.126 (P=0.001) and 0.377 (P=0.005) respectively.Absence of long-acting intraocular tamponade was associated with a 0.302 (P=0.010) improvement of logMAR post vitrectomy.CONCLUSION: Factors associated with visual improvement after vitrectomy are poor pre-operative VA,an attached macula,absence of iris neovascularisation,absence of post-operative complications and abstaining from use of long-acting intraocular tamponade.A thorough understanding of the factors predicting visual improvement will facilitate decision-making in vitreoretinal surgery.