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目的 观察IRVAN综合征的临床特征,探讨其治疗时机的选择.方法 回顾分析5例(10只眼)确诊为IRVAN综合征的患者的资料,并根据其临床特征分为五期.对6只眼采用视网膜激光光凝治疗,4只眼联合应用玻璃体切割术与视网膜激光光凝术治疗,以观察疗效.结果 5例患者10只眼中均有特发性视网膜动脉炎、后极部多发动脉瘤、视神经视网膜炎,周边部有视网膜血管闭锁及大面积毛细血管无灌注区.4只眼出现玻璃体积血,2只眼有视盘新生血管,1只眼黄斑区出现毛细血管无灌注区.其中4只眼处于Ⅱ期,6只眼均处于Ⅲ期.经过治疗后,目前视力≥0.6者4只眼,0.1~0.6者1只眼,≤0.1者5只眼.结论 5例10只眼均具有IRVAN综合征的特点,符合其诊断标准.在Ⅱ期即周边部视网膜无灌注区形成新生血管之前或初期进行激光光凝治疗能稳定眼底病变的进展. 相似文献
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IRVAN 综合征的临床特征和治疗 总被引:3,自引:0,他引:3
目的介绍IRVAN综合征的临床特点并评价激光光凝的治疗效果。方法通过对13例诊断为IRVAN综合征的患者,做眼部检查包括眼前节检查、眼底检查、荧光素眼底血管造影(FFA)、超声波检查、ERG检查等,以确定这些病例的临床特点。行多项实验室检查、经颅多谱勒超声波检查、甲皱襞微循环检查等以探索其病因。对19只患眼进行了激光光凝治疗。1例口服抗痨药物治疗,以观察疗效。结果13例26眼,20~40岁者12例。视力≤0.05者7眼(26.9%),0.06~0.2者1眼(3.9%),≥0.3者18眼(69.2%)。眼前节房水闪辉阳性3眼,虹膜后粘连1眼。能查眼底的20眼中,视盘动脉瘤即视盘根部膨大或呈瘤状18眼(90%),视盘附近动脉干上的动脉瘤16眼(80%),所有病例均有动脉瘤。FFA可见视盘呈强荧光,静脉管壁着染或渗漏荧光。所有病例周边部均有大片无灌注区呈锯齿状强荧光边。19眼激光光凝治疗后,16眼(84.2%)能维持治疗时的视力或稍有改善。平均观察33.3个月(1个月~19年)。长期抗痨治疗无效。多项检查未得出与病因相关的阳性结果。结论13例患者均具有IRVAN综合征的临床特点,符合其诊断标准。激光光凝治疗可延缓甚至稳定眼底病变的进展。病因仍难以查明。 相似文献
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特发性视网膜血管炎、动脉瘤和视神经视网膜炎(IRVAN)综合征是一种稀有但是公认的临床疾病。该综合征主要临床表现为视网膜血管炎、分支动脉动脉瘤、视神经视网膜动脉瘤,患者视力在患病后急剧下降,目前对于该疾病的诊断和临床分期等问题许多临床医生尚不熟悉。IRVAN的治疗上尚无明确的统一的指南,多数文献为个案病例报告,患者预后视力多相差很大。目前该病主要的治疗方案为,全视网膜激光光凝、糖皮质激素口服或眼内注射治疗、抗血管内皮生长因子(VEGF)药物治疗,免疫抑制剂治疗等方法。如何在不同时期,不同病情的患者中选择合理的疗法成为临床医生面临的主要困难。本文总结了近20年国内外所有IRVAN综合征报道的相关文献,以帮助临床医生更好的诊断和治疗IRVAN综合征提供参考。 相似文献
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目的 比较577 nm、532 nm激光全视网膜激光光凝(panretinal photocoagulation,PRP)治疗重度非增生型糖尿病视网膜病变(non-proliferative diabetic retinopathy,NPDR)的临床疗效.方法 前瞻性临床对照研究.纳入重度NPDR患者42例64眼,随机分为577 nm组和532 nm组,采用单点模式行PRP,术前及术后1d、1个月、3个月、6个月检查最佳矫正视力(best corrected visual acuity,BCVA)、眼底、光学相干断层扫描(optical coherence tomography,OCT)、全视野闪光视网膜电图(flash electroretinogram,F-ERG),术后3个月、6个月行眼底荧光血管造影(fundus fluorescein angiography,FFA)检查.结果 577 nm组和532nm组光斑点数分别为(1969.25±278.19)点、(2098.16±289.27)点;激光功率分别为(425.23±50.15) mW、(438.15±38.48)mW;能量密度分别为(7.54±1.54)mW· ms-1 · μm-2、(7.68±3.01)mW·ms-1·μm-2,平均光斑数(=2.68)、平均激光功率(t=1.46)、平均能量密度(t=2.15)的组间差异均无统计学意义(均为P>0.05).两组患者术后1个月、3个月、6个月,组间黄斑中心凹厚度(central macular thickness,CMT)差异均无统计学意义(t=1.98、1.88、1.81,均为P>0.05);两组患者术后1个月、3个月、6个月F-ERG振幅(a波:f=5.94、5.19、6.97;b波:=5.67、4.56、5.12)组间差异均有统计学意义(均为P<0.05).术后6个月两组患者治疗有效率分别为87.5%、46.9%,差异有统计学意义(x2=7.56,P<0.05).结论 577 nm激光比532nm激光治疗重度NPDR有效率更高,视功能损伤程度更小. 相似文献
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全视网膜光凝治疗糖尿病视网膜病变的疗效观察 总被引:4,自引:0,他引:4
目的 对多波长氪激光全视网膜光凝治疗糖尿病视网膜病变 (diabeticretinopathy ,DR)的疗效进行观察并总结研究。方法 选择经FFA检查确诊为增殖前期及增殖期的DR患者 2 0 0例 390眼 ,对不同部位的病变选择不同波长的激光行全视网膜光凝。结果 390眼DR患眼行全视网膜光凝治疗后 ,有效 379眼 ,总有效率 97.18% ,其中增殖前期 190眼 ,有效 189眼 ,有效率 99.4 7% ;增殖期 2 0 0眼 ,有效 190眼 ,有效率 95 .0 0 % (P <0 .0 1)。结论 DR患者早期行全视网膜光凝治疗可有效防止病变的发展 ,增加视力。 相似文献
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特发性视网膜血管炎、动脉瘤、视神经、视网膜炎综合征临床观察 总被引:1,自引:0,他引:1
目的 观察特发性视网膜血管炎、动脉瘤、视神经视网膜炎综合征(IRVAN综合征)的临床特征。 方法 回顾分析3例经全身系统检查、眼底彩色照相以及荧光素眼底血管造影(FFA)等检查确诊的IRVAN综合征患者的临床资料。 结果 3例患者均有特发性视网膜血管炎,而且是视网膜动脉的炎症,视盘及视网膜血管多发性大动脉瘤以及因视盘水肿、视盘周围渗出引起的视神经视网膜炎,2例患者周边部视网膜血管有闭塞区。 结论 IRVAN综合征的临床特征有特发性视网膜血管炎,视网膜和视盘动脉血管管壁上多发性大动脉瘤,以及由于血管炎症和动脉瘤引起的视网膜、视盘渗出、水肿以及由此产生的视神经视网膜炎。(中华眼底病杂志,2007,23:180-183) 相似文献
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目的分析特发性视网膜血管炎的治疗效果。方法对126例(197眼)确诊为特发性视网膜血管炎的患者进行药物、激光或玻璃体手术治疗进行回顾性分析,包括1年内的视力、光学相干断层扫描(OCT)检查、荧光素眼底血管造影(FFA)结果。结果早期药物治疗110眼,其中视力改善者61眼(55.5%),需激光或手术治疗者36眼(32.7%)。激光治疗累计71例(119眼),视力改善者88跟(73.9%)。20眼接受玻璃体手术,视力改善者9眼(45%)。接受激光与玻璃体手术治疗的疗效比较差异有统计学意义(x^2=6.80,P〈0.05)。非玻璃体出血与玻璃体出血者激光治疗后视力改善眼数的差异有统计学意义(x^2=6.53,P〈0.05)。对视力改善者,OCT和FFA均提示黄斑水肿明显改善。结论视网膜激光光凝对特发性视网膜血管炎是重要的治疗手段,不同治疗方法适应证的选择和治疗期间的密切随访对于改善治疗效果至关重要。 相似文献
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J G Santiago S Walia J K Sun J D Cavallerano Z A Haddad L P Aiello P S Silva 《Eye (London, England)》2014,28(3):259-268
Purpose
To determine the influence of diabetes and diabetes type on ocular outcomes following central retinal vein occlusion (CRVO).Methods
Retrospective chart review of all patients evaluated over a 4-year period in a tertiary diabetes eye care center. Ophthalmic findings were recorded including visual acuity and the presence of retinal neovascularization at presentation, after 3–6 months, and at last follow-up.Results
The records of 19 648 patients (13 571 diabetic; 6077 nondiabetic) were reviewed. The prevalence of CRVO in diabetic patients (N=72) and nondiabetic patients (N=27) were 0.5 and 0.4%, respectively. Disc neovascularization (21.3 vs 0.0%, P=0.05) and panretinal photocoagulation (PRP) (48.7 vs 21.4%, P=0.01) were more common in diabetic patients compared with nondiabetic patients. Compared with type 2 diabetic patients, retinal neovascularization (28.6 vs 3.7%, P=0.004) and subsequent PRP (78.6 vs 41.9%, P=0.01) were more likely in type 1 patients. Optic nerve head collateral vessels (CVs) were observed less than half as often (21.4 vs 56.5%, P=0.04) in patients with type 1 diabetes. Presence of optic nerve head CVs at baseline was associated with less likelihood of PRP (14.3 vs 46.1%, P=0.03).Conclusions
In this cohort, the rates of CRVO in diabetic and nondiabetic patients were similar to previously published population-based studies. Following CRVO, diabetic patients had higher rates of disc neovascularization and were more likely to require subsequent PRP than nondiabetic patients. As compared with CRVO patients with type 2 diabetes, patients with type 1 diabetes and CRVO had worse anatomic outcomes with substantially increased risks of retinal neovascularization and PRP; however, final visual acuity outcomes were similar. 相似文献14.
Epidemiology and clinical features of inflammatory retinal vascular occlusions: pooled data from two tertiary‐referral institutions 下载免费PDF全文
Aniruddha Agarwal MD Samendra Karkhur MS Kanika Aggarwal MS Alessandro Invernizzi MD Ramandeep Singh MS Mangat R Dogra MS Vishali Gupta MS Amod Gupta MS Diana V Do MD Quan D Nguyen MD MSc 《Clinical & experimental ophthalmology》2018,46(1):62-74
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靶向视网膜光凝(TRP)即靶向光凝视网膜无灌注区(NPA),这一激光模式可以大幅降低全视网膜光凝(PRP)的并发症风险。超广角荧光素血管造影(UWFFA)可以清晰显示远周边部视网膜NPA,有利于TRP的精确定位与实施。目前,针对增殖性糖尿病视网膜病变(PDR)的TRP治疗方案短期安全性较好,但其长期疗效尚不确切。未来,TRP可能成为部分PDR患者的早期治疗选择,通过推迟PRP以维持视敏度及中心视野。抗血管内皮生长因子(VEGF)药物是目前治疗糖尿病性黄斑水肿(DME)的一线用药,对合并视网膜新生血管(NV)或依从性差的DME患者可考虑联合TRP治疗。缺血指数(ISI)用于量化分析UWFFA视野下的视网膜NPA,未来有望成为重要参考指标,指导临床TRP治疗方案的选择。 相似文献
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Dieter Schmidt 《International ophthalmology》1997,21(2):99-106
Purpose: To treat patients with traction detachment of the central retina by laser in order to avoid vitrectomy. Methods:
Focal treatment of and around the flat detached retinal area with the argon laser. Results: Seven patients were treated for
macular-threatening traction detachment of the retina. The non-rhegmatogenous traction detachment was flat and circumscribed.
Panretinal photocoagulation (PRP) with the argon laser was performed prior to treatment of the traction in three of the cases,
in four it was carried out in addition to PRP. In each of the seven patients partial or complete reattachment and stabilization
for many years was achieved, rendering vitrectomy unnecessary (mean follow-up after therapy: 40.1 months). In no case was
a laser-induced hole produced, and in no patient did the visual acuity decrease. Conclusion: The favourable results following
photocoagulation can be explained by the tight retinal/choroidal scar formation (laserpexy). Laserpexy is only recommended
for eyes with slight initial detachment.
This revised version was published online in September 2006 with corrections to the Cover Date. 相似文献
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The laser Doppler technique was used to measure the pulsatile characteristics of the retinal arterial blood flow in diabetic patients with severe retinopathy immediately before argon laser panretinal photocoagulation (PRP) and again one to two months after PRP. In each measurement the relative variation of the maximum red blood cell velocity, Vmax, in a major branch retinal artery was determined throughout the cardiac cycle. Flow pulsatility was defined as the ratio of Vmax at maximum systole to Vmax at minimum diastole. Following PRP, each eye showed a decrease in flow pulsatility as well as a decrease in retinal arterial and venous diameters. The measurements are consistent with an autoregulatory response of the retinal circulation to increased inner retinal oxygen concentration following PRP. Laser Doppler measurements may be a useful means of assessing the effectiveness of a particular PRP treatment. 相似文献
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目的 观察糖尿病视网膜病变(diabetic retinopathy,DR)患者全视网膜激光光凝(pan-retinal laser photocoagulation,PRP)治疗前后视网膜动、静脉循环时间的改变.方法 经荧光素眼底血管造影(fundus fluorescein angiography,FFA)检查确诊为重度非增殖期及增殖期DR且符合PRP适应证的16例(16眼)患者纳入研究,并行PRP.治疗前、治疗后1~3个月,采用FFA对所有患眼视网膜动、静脉循环时间进行记录,观察视网膜动脉4个分支主干出现显影的时间、完全充盈的时间,视网膜静脉4个分支主干全部出现层流的时间、完全充盈的时间,计算得出视网膜动脉、视网膜毛细血管、视网膜静脉、视网膜动静脉通过时间,对比观察治疗前后患眼不同时段的视网膜通过时间的变化.结果 DR患者PRP治疗前视网膜毛细血管通过时间为(1.58±0.99)s,治疗后为(2.19±1.23)s,差异有统计学意义(P=0.叭1).DR患者PRP治疗前后的视网膜动脉、视网膜静脉、视网膜动静脉通过时间的差异均无统计学意义(均为P >0.05).结论 PRP是DR患者的最重要治疗方式,在PRP治疗后1~3个月视网膜毛细血管通过时间的血流动力学改变最为显著,较PRP治疗前有显著延长. 相似文献
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目的::分析比较单点与多点扫描模式全视网膜激光光凝术(PRP)对非增殖性糖尿病视网膜病变(NPDR)患者的疗效及对视网膜结构和功能的影响。方法::回顾性系列病例研究。选择2019年1月至2020年7月在青岛市市立医院被确诊为重度NPDR后行PRP治疗且随访6个月以上的患者57例(93眼)。其中27例(46眼)行单点扫描... 相似文献