577 nm激光光凝联合玻璃体内注射康柏西普治疗糖尿病性黄斑水肿的效果观察

目的　探讨577 nm激光光凝联合玻璃体内注射康柏西普治疗糖尿病性黄斑水肿的效果。方法　选取2016年1月至2017年3月在我院治疗的糖尿病性黄斑水肿患者81例81眼，根据患者最终选取的治疗方案分为观察组43例43眼和对照组38例38眼，观察组给予577 nm激光光凝联合玻璃体内注射康柏西普治疗，对照组仅给予577 nm激光光凝，观察两组治疗前后最佳矫正视力（best corrected visual acuity，BCVA）和黄斑中心凹厚度（central fovea of macula thickness，CMT），分析观察组BCVA和CMT变化值与初始因素的相关性。结果　随治疗时间延长，观察组和对照组BCVA、CMT相应改善（均为P＜0.05）；观察组治疗后1个月、3个月和6个月BCVA分别为0.37±0.09、0.44±0.10和0.52±0.13，均明显高于对照组（均为P＜0.05）；观察组治疗后1个月、3个月和6个月CMT分别为（351.03±41.43）μm、（270.32±40.03）μm和（220.01±32.91）μm，均明显低于对照组（均为P＜0.05）；BCVA变化值与糖尿病性黄斑水肿病程、治疗前BCVA呈负相关（r=-0.422、-0.410，均为P＜0.05）；CMT变化值与糖尿病性黄斑水肿病程、治疗前CMT呈负相关（r=-0.430、-0.415，均为P＜0.05）。结论　577 nm激光光凝联合玻璃体内注射康柏西普治疗糖尿病性黄斑水肿效果较好，其效果与患者基线BCVA、糖尿病性黄斑水肿病程有一定相关性。     

康柏西普治疗老年性黄斑变性的研究现状

老年性黄斑变性( AMD)已经成为发达国家老年人致盲的主要原因之一。随着AMD患者的逐年增加,这也成为眼科防盲研究中重要的课题之一。其病因并不完全清楚,但许多研究表明血管内皮生长因子( VEGF)在其发病中起了重要作用。随着抗VEGF药物的研发与应用,目前已有多种药物应用于该病,本文主要介绍康柏西普在老年性黄斑变性中的应用。     

羟苯磺酸钙联合康柏西普治疗糖尿病性黄斑水肿的疗效和安全性

目的　探讨羟苯磺酸钙联合康柏西普治疗糖尿病性黄斑水肿（diabetic macular edema,DME）的临床疗效和安全性。方法　选取DME患者86例104眼,随机分为康柏西普眼用注射液(conbercept ophthalmic injection,COI)组（43例50眼）和联合组（43例54眼）。COI组给予患者玻璃体内注射COI治疗,联合组在COI组基础上给予患者羟苯磺酸钙胶囊治疗。治疗3个月后,比较两组患者房水血管内皮生长因子（VEGF）、基质细胞衍生因子1（stromal cell derived factor-1,SDF-1）含量以及黄斑中央视网膜厚度（CMT）、最佳矫正视力（BCVA）、并发症发生情况。结果　治疗3个月后,联合组和COI组患者房水VEGF、SDF-1含量均明显低于治疗前,联合组均低于COI组,差异均有统计学意义（均为P<0.05）。治疗1个月、3个月后,联合组和COI组CMT均低于治疗前,且联合组CMT均低于COI组,差异均有统计学意义（均为P<0.05）。治疗1个月、3个月后,联合组和COI组BCVA均明显高于治疗前,联合组BCVA均高于COI组,差异均有统计学意义（均为P<0.05）。治疗中和治疗后,COI组和联合组分别出现眼压升高3眼和2眼,结膜充血各2眼,玻璃体积血各1眼;两组并发症发生率比较,差异无统计学意义（P>0.05）。结论　羟苯磺酸钙联合康柏西普可有效降低DME患者房水VEGF、SDF-1水平,降低CMT,提高BCVA,且安全性好。     

Comprehensive evaluation of intravitreal conbercept versus half-dose photodynamic therapy for chronic central serous chorioretinopathy

AIM: To compare the safety and efficacy of conbercept intravitreal injection and half-dose photodynamic therapy (PDT) in treating chronic central serous chorioretinopathy (CSC). METHODS: This study was retrospective. Thirty-seven patients (37 eyes) with chronic CSC received conbercept injections while 57 patients (57 eyes) were treated with half-dose PDT. All subjects were followed in 6mo. Outcome measures included change in best-corrected visual acuity (BCVA), central macular thickness (CMT), subfoveal choroidal thickness (SFCT), and resolution of subretinal fluid (SRF). RESULTS: There was no adverse event observed in either treatment group. At the 6-month follow-up, 26 eyes (70.3%) in the conbercept group and 54 eyes (94.7%) in the half-dose PDT group (P<0.05) reached full resolution of SRF. The mean logarithm of the minimum angle of resolution (logMAR) BCVA significantly improved (P<0.001) in both treatment groups with better outcome at early phase in the half-dose PDT group (2wk, 1, and 2mo, P<0.05). All subjects experienced significant CMT improvement (P<0.001) with no statistical difference between the two groups (P>0.05). The SFCT also improved in all subjects (P<0.001) with better outcome in the half-dose PDT group (P<0.05). CONCLUSION: Both intravitreal conbercept and half-dose PDT are safe to use in treating chronic CSC. By 6mo, both treatment groups are efficacious in improving BCVA, reducing CMT and SFCT, and resolving SRF in eyes with chronic CSC. Half-dose PDT may show better outcome at initial phase of treatment in chronic CSC. Longer follow-up period is necessary to study for long-term effect and safety.     

玻璃体腔注射康柏西普治疗BRVO继发黄斑水肿的临床疗效观察

目的：研究玻璃体腔注射康柏西普治疗视网膜分支静脉阻塞(BRVO)继发黄斑水肿(ME)的临床疗效。

方法：回顾性分析。选取2016-03/2018-05经本院诊治的BRVO继发ME患者86例86眼,根据治疗方式不同分对照组患者43例43眼给予玻璃体腔注射雷珠单抗治疗,研究组患者43例43眼给予玻璃体腔注射康柏西普治疗。随访6mo,比较两组患者治疗前、治疗后1、3、6mo的黄斑中心区厚度(CMT)和最佳矫正视力(BCVA),记录随访期间两组患者的注射次数及并发症发生情况。

结果：治疗后1、3、6mo时,研究组患者LogMAR BCVA(0.57±0.29、0.42±0.21、0.38±0.12)和CMT(343.56±46.23、316.68±38.25、283.56±29.47μm)与对照组(LogMAR BCVA：0.58±0.30、0.43±0.23、0.40±0.13; CMT：345.47±46.53、317.83±38.46、284.34±29.56μm)比较无差异(P>0.05); 研究组患者平均注射次数(2.25±1.16次)明显低于对照组\〖(4.37±1.58)次,P<0.05\〗; 治疗期间两组患者均未出现持续性高眼压、眼内炎、视网膜脱落、玻璃体出血等并发症。

结论：玻璃体腔注射康柏西普治疗BRVO继发ME的疗效显著,安全性好,可明显减少注射次数。     

小剂量康柏西普治疗早产儿视网膜病变的应用价值

目的观察小剂量康柏西普治疗早产儿视网膜病变的应用价值。方法选取2019年1月至2020年1月郑州大学附属儿童医院收治的80例视网膜病变(ROP)患儿[包括急进型后部ROP (AP-ROP)、阈值期ROP及阈值前Ⅰ型ROP,诊断均符合抗血管内皮生长因子(VEGF)治疗指征],根据治疗方法不同分为对照组38例,小剂量组42例,对照组使用0.25 mg/0.025 mL康柏西普治疗,小剂量组使用0.15 mg/0.015 mL剂量康柏西普治疗。记录两组治疗总有效率和屈光不正发生率;比较治疗前后眼压;记录两组不良反应发生率。结果两组临床治疗总有效率、屈光不正发生率差异均无统计学意义(P>0.05);治疗前两组眼压比较差异无统计学意义(P>0.05),治疗后对照组眼压高于小剂量组(P<0.05);两组不良反应发生率差异无统计学意义(P>0.05)。结论小剂量康柏西普治疗早产儿视网膜病变的效果安全可靠,值得临床推广使用。     

3种视网膜新生血管抑制药治疗湿性AMD的临床对比研究

目的:比较3种视网膜新生血管抑制药治疗湿性老年黄斑变性(AMD)的临床疗效,探讨其临床应用价值。方法:按照随机数字法将2013年8月-2016年10月某院收治的114例(114眼)湿性AMD患者分为A、B、C 3组,每组38例。A组患者静脉输注维替泊芬结合光动力疗法,B组与C组患者分别玻璃体内腔注射雷珠单抗与康柏西普,均每月给药1次,治疗3个月,随访3个月。比较治疗前及治疗后1个月、3个月、6个月3组患者的裸眼视力、黄斑中心视网膜厚度、脉络膜新生血管(CNV)渗漏面积以及并发症发生情况。结果:治疗前,3组患者的裸眼视力、黄斑中心视网膜厚度及CNV渗漏面积比较差异无显著性(P>0.05),治疗后,3组患者的裸眼视力均显著提高、黄斑中心视网膜厚度及CNV渗漏面积均显著减小(P<0.05)。A组在治疗后1、3个月的裸眼视力显著低于B与C组、黄斑中心视网膜厚度及CNV渗漏面积显著大于B与C组(P<0.05),C组在治疗后1个月的裸眼视力显著低于B组、黄斑中心视网膜厚度及CNV渗漏面积显著大于B组(P<0.05);治疗后6个月,3组患者的裸眼视力、黄斑中心视网膜厚度及CNV渗漏面积比较差异无显著性(P>0.05);3组患者并发症的发生率差异无显著性(P>0.05)。结论:在湿性AMD的临床治疗中,雷珠单抗的前期效果明显,但3种药物的后期效果相当。     

Comparison of efficacy of conbercept, aflibercept, and ranibizumab ophthalmic injection in the treatment of macular edema caused by retinal vein occlusion: a Meta-analysis

AIM: To evaluate and compare the anatomical and functional outcomes and negative effects of the three anti-vascular endothelial growth factor (VEGF) drugs in the treatment of macular edema (ME) due to retinal vein occlusion (RVO) based on the evidence pooled from current clinical trials and observational studies. METHODS: A systematic literature search was conducted on nine online databases from inception until April 30, 2022. The main endpoints were best corrected visual acuity (BCVA), central macular thickness (CMT), and adverse events (AEs). Cumulative Meta-analysis was conducted to synthesize the outcomes of the drugs. The retrieved data were analyzed using Stata software (version 12.0). RESULTS: A total of 20 studies comprising 1674 eyes met the inclusion criteria to the Meta-analysis. It was observed that conbercept and aflibercept had better visual acuity effects compared with ranibizumab at 1mo [weight mean difference (WMD)=-0.03, P=0.001; WMD=-0.05, P=0.019], but the effects were not different from that of ranibizumab at 6mo. Moreover, there was not statistically significant difference in the proportion of patients gaining ≥15 letters at 12-24mo between aflibercept and ranibizumab [odds ratio (OR)=1.16, P=0.427]. Conbercept had higher mean CMT change effects at 1mo (WMD= -14.43, P=0.014) and 6mo (WMD=-35.63, P≤0.001) compared with ranibizumab. Meanwhile, the mean CMT change effects at 1mo (WMD=-10.14, P=0.170), 6mo (WMD=-26.98, P=0.140) and 12-24mo (WMD=-12.34, P=0.071) were comparable among the groups. Similarly, AEs were not significantly different among the treatments (OR=0.75, P=0.305; OR=1.04, P=0.89). The stability of effect size of mean BCVA and CMT improved with the increase in sample size. Aflibercept and conbercept required fewer injections compared with ranibizumab. CONCLUSION: This is the first study to evaluate the efficacy and AEs of intravitreal administration of conbercept, ranibizumab, and aflibercept in the treatment of RVO-ME. Intravitreal aflibercept or conbercept results in better mean change in vision and CMT reduction compared with ranibizumab. Conbercept can be considered to be a promising and innovative drug with good anti-VEGF effects.     

Efficacy of conbercept after switching from bevacizumab/ranibizumab in eyes of macular edema secondary to central retinal vein occlusion

AIM: To explore the efficacy of conbercept after switching from bevacizumab/ranibizumab in eyes of central retinal vein occlusion (CRVO) through optical coherence tomography angiography (OCTA). METHODS: Patients with prior treatment of a minimum of three consecutive intravitreal injections of either bevacizumab or ranibizumab, followed by injection of conbercept, were recruited. The minimal follow-up period after switching was 12mo. Central retinal thickness (CRT), best-corrected visual acuity (BCVA), the interval of injections was reviewed. Perfusion density (PD) and vascular length density (VLD) of superficial and deep capillary plexus were acquired from OCTA images before and after switching. RESULTS: Twenty-four eyes were included. CRT significantly decreased from 460.71±153.23 μm (before switching) to 283.92±38.27 μm at the end of follow-up (P<0.001). However, BCVA gained to some extent (from 0.98±0.33 to 0.76±0.42 logMAR) but the difference was not significant (P=0.070). After switching to conbercept the injection interval extended from 5.2±2.3wk to 8.3±3.9wk (P=0.012). At the end of follow-up, PD of deep retinal layer decreased significantly compared with before switching (from 34.62%±5.27% to 33.26%±5.82%, P=0.016), similar result was found in VLD of deep retinal layer but not in PD or VLD in superficial layer. CONCLUSION: In cases of refractory macular edema secondary to CRVO, switching to conbercept improves macular thickness and extends interval of injection. Retinal microvasculature cannot improve with treatment of conbercept.     

Clinical research of EX-PRESS drainage device and modified trabeculectomy combined with intravitreal conbercept treatment for neovascular glaucoma

AIM:To evaluate the efficacy and safety of modified trabeculectomy(experimental group) and implantation of EX-PRESS drainage device(control group),combined with intravitreal conbercept injection for neovascular glaucoma(NVG).METHODS:Totally 30 patients with NVG were selected from June 2014 to June 2017,and randomly divided into experimental group and control group.All patients were underwent intravitreal conbercept(0.5 mg/0.05 mL) treatment before surgery.Modified trabeculectomy was performed in MT group,while EX-PRESS drainage device implantation was performed in EX group.The success rates,best corrected visual acuity(BCVA),intraocular pressure(IOP),filtering bleb and complications were observed and compared.RESULTS:The differences of success rate,BCVA and filtering bleb were not statistically significant 12mo after the surgery(P>0.05),however,the difference of IOP at 1d,1wk,1,3,and 6mo after surgery was statistically significant(F_time=390.64,P_time<0.0001) between two groups.The interactions between two groups in the given time showed no significant difference(F_{intergroup×time}=0.181,P_{intergroup×time}=0.57),and also there was no significant difference in IOP between the two groups(F=3.16,P=0.09).The results of pairwise comparison at each time point showed no significant difference in IOP between 1d and 1wk,3 and 6,3mo and 12mo after surgery(P>0.05),while the results at other time point indicate statistical differences(P<0.05).CONCLUSION:The modified trabeculectomy and the implantation of EX-PRESS drainage device have clinical application value in reducing IOP and postoperative complications of refractory NVG.