摘要目的:观察手术完毕玻璃体腔注射康柏西普辅助微创玻璃体切割手术（PPV）治疗增生型糖尿病视网膜病变（PDR）合并玻璃体积血（VH）的有效性和安全性。方法:前瞻性临床研究。2017年10月至2018年3月于天津医科大学眼科医院检查确诊的PDR合并VH患者50例50只眼纳入研究。采用国际标准视力表行BCVA检查，统计时换算为logMAR视力。依据随机表随机分组原则将患眼分为手术完毕注药组（注药组）和对照组，均为25例25只眼。所有患眼后极部未见增生性改变和牵引性视网膜脱离。两组患者年龄比较，差异有统计学意义（ t=－24.697， P=0.030 ）；性别构成比（ χ2=0.330 ）、糖尿病病程（ t=－1.144）、logMAR BCVA （ t=－0.148 ）、晶状体状态（ χ2=0.397 ）、是否行全视网膜激光光凝（PRP）眼数（ χ2=1.333）比较，差异均无统计学意义（ P=0.564、0.258、0.883、0.529、0.248 ）。所有患眼均接受27G PPV治疗。注药组患眼于手术完毕时玻璃体腔注射10 mg/ml康柏西普0.05 ml（含康柏西普0.5 mg ）。手术后1周，1、3、6个月采用手术前相同设备和方法行相关检查，观察BCVA、VH复发情况、眼压、黄斑中心凹视网膜厚度（CRT）以及手术后并发症发生和病情进展情况。 结果:手术后1周，1、3、6个月，注药组、对照组患眼logMAR BCVA比较，差异均有统计学意义（ t=－4.980、－4.840、－4.892、－5.439， P<0.001 ）。手术后3、6个月，注药组患眼VH复发率均低于对照组，差异无统计学意义（ χ2=3.030、4.153， P=0.192、0.103 ）。手术后1周，1、3、6个月，注药组患眼CRT均低于对照组，差异有统计学意义（ t=－2.622、－2.638、－3.613、－3.037 ， P=0.012、0.010、0.001、0.004、0.005 ）。手术后所有患眼均未发生脉络膜脱离、增生性玻璃体视网膜病变、视网膜脱离、虹膜红变及新生血管性青光眼等并发症。 结论:手术完毕玻璃体腔注射康柏西普辅助治疗PDR可有效降低PPV后VH复发，改善BCVA；安全性较好。

abstractsObjective:To observe the efficacy and safety of intravitreal injection of conbercept in the treatment of proliferatived diabetic retinophathy (PDR) complicated with vitreous hemorrhage by minimally invasive vitreoretinal surgery.Methods:Prospective clinical study. A total of 50 patients with PDR complicated with vitreous hemorrhage clinically diagnosed in Tianjin Medical University Eye Hospital who needed vitrectomy were recruited in this study. According to the principle of informed consent, the patients were divided into two groups: postoperative injection group and the control group. Twenty-five eyes of 25 patients in each group were examined before operation. No significant proliferative changes in the posterior pole and traction retinal detachment were observed. There was significant difference of age between two groups ( t=-24.697, P=0.030), but no significant difference of sex ( χ2=0.330, P=0.564), duration of diabetes ( t=-1.144, P=0.258), logMAR BCVA ( t=-0.148, P=0.883), lens state ( χ2=0.397, P=0.529), panretinal laser photocoagulation ( χ2=1.333, P=0.248). The postoperative injection group was treated with intravitreous injection of 0.05 ml conbercept (10 mg/ml) immediately after 27G minimally invasive vitrectomy. The other treatment and follow-up were the same as those in the postoperative injection group except for conbercept injection. All patients underwent routine slit-lamp examination, indirect ophthalmoscope and B-ultrasound examination before operation. The main outcome measure included the time of operation, the incidence rate of iatrogenic retinal holes and silicone oil filling. The recurrence of vitreous hemorrhage, BCVA, intraocular pressure, central retinal thickness (CRT), postoperative complications and progression were recorded 1 week, 1 month, 3 months and 6 months after operation. Results:At 1 week and 1, 3, 6 months after operation, there was significant difference of logMAR BCVA between the two groups ( t=-4.980, -4.840, -4.892, -5.439; P<0.001). At 3 and 6 months after operation, the recurrence of vitreous hemorrhage in the postoperative injection group was lower than that in the control group, but there was no statistical difference between two groups ( χ2=3.030, 4.153; P=0.192, 0.103). At 1 week and 1, 3, 6 months after operation, the CRT in the postoperative injection group was lower than that in the control group, the difference was significant ( t=-2.622, -2.638, -3.613, -3.037; P=0.012, 0.010, 0.001, 0.004, 0.005). There was no complications such as choroid detachment, proliferative vitreoretinopathy, retinal detachment, iris redness and neovascular glaucoma in all the eyes after operation. Conclusions:Intravitreal injection of conbercept in the treatment of PDR after operation is safe and effective. It can reduce the recurrence of vitreous hemorrhage after vitrectomy, improve the BCVA.