retinal neovascularization

视网膜新生血管形成
  • 文章类型: Journal Article
    背景:黄斑视网膜裂孔(MRS)和近视黄斑新生血管(mMNV)都是高度近视的潜在致盲并发症。在这个案例报告中,我们强调了玻璃体内抗血管内皮生长因子(抗VEGF)治疗mMNV后MRS的进展,以及对有关该主题的文献的广泛评论。
    方法:一名49岁的女性近期出现了两周的右眼模糊和变形。她双眼高度近视(右眼-20/60与-16D,左眼-20/20与-13D)。裂隙灯检眼镜在双眼中发现正常的眼前段。眼底检查,双眼均观察到病理性近视伴后葡萄肿和乳头周围萎缩的特征。活跃的mMNV,以及视网膜内液体,最小中央凹内部和外部MRS,和沿着下颞区视网膜拱廊的局灶性玻璃体后部牵引,在右眼的光学相干断层扫描(OCT)上检测到。患者接受玻璃体内注射阿柏西普(2mg/0.05ml)。
    结果:两个月和四个月随访时的OCT扫描显示mMNV消退,视网膜前膜拉紧,外MRS逐渐恶化,以及位于中央凹下方的多个中央凹视网膜脱离的发展。在手术后的最后一个月就诊时,对进行性MRS进行了平坦部玻璃体切除术,具有良好的解剖学(已解决的MRS)和功能结果(维持视力为20/60)。
    结论:玻璃体内注射抗VEGF治疗mMNV可引起玻璃体视网膜界面改变,加剧MRS并导致视力下降。MRS的玻璃体切除术可能是几种治疗选择之一。
    BACKGROUND: Macular retinoschisis (MRS) and myopic macular neovascularization (mMNV) are both potentially blinding complications of high myopia. In this case report, we highlight the progression of MRS after intravitreal anti-vascular endothelial growth factor (anti-VEGF) treatment for mMNV, as well as an extensive review of the literature on this topic.
    METHODS: A 49-year-old woman presented with two weeks of recent onset blurring and metamorphopsia in her right eye. She had high myopia in both eyes (right eye - 20/60 with - 16D, left eye - 20/20 with - 13D). Slit-lamp ophthalmoscopy found a normal anterior segment in both eyes. On fundus examination, features of pathological myopia with posterior staphyloma and peripapillary atrophy were observed in both eyes. An active mMNV, as well as intraretinal fluid, minimal perifoveal inner and outer MRS, and focal posterior vitreous traction along the inferotemporal retinal arcade, were detected on optical coherence tomography (OCT) of the right eye. The patient received an intravitreal injection of Aflibercept (2 mg/0.05 ml).
    RESULTS: OCT scans at two- and four-month follow-up visits revealed regressed mMNV with a taut epiretinal membrane, progressive worsening of outer MRS, and the development of multiple perifoveal retinal detachment inferior to the fovea. Pars plana vitrectomy surgery was performed for the progressive MRS with good anatomical (resolved MRS) and functional outcome (maintained visual acuity at 20/60) at the last one-month post-surgery visit.
    CONCLUSIONS: Intravitreal anti-VEGF injections for mMNV can cause vitreoretinal interface changes, exacerbating MRS and causing visual deterioration. Vitrectomy for MRS could be one of several treatment options.
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  • 文章类型: Case Reports
    目的:报告一例罕见且不典型的老年白种人女性患者,该患者发展为脉络膜骨瘤(CO)的可能并发症,为周围多发性息肉状脉络膜血管病变(PCV)。与覆盖病变的视网膜前新生血管膜有关。
    方法:观察性病例报告。
    一名60岁的白种人女性出现右眼视力模糊(RE)。眼底检查发现乳头状上区有一圆形白色黄色钙化深部病变,测量4个圆盘直径,具有定义明确的扇形边距和不规则的表面。B超和眼眶断层扫描证实了脉络膜骨瘤(CO)的诊断。进一步研究与多模态成像,包括infracyamine绿色血管造影,荧光素血管造影,扫频源光学相干断层扫描和血管造影强调了CO周围多个动脉瘤脉络膜扩张的存在,对应于PCV。我们还注意到存在覆盖CO的视网膜前新生血管膜。由于在多模态成像中未检测到活动迹象,因此对患者进行了定期随访。
    结论:我们的病例报告代表了视网膜前新生血管形成之间的异常和非典型关联,PCV和脉络膜骨瘤。虽然在CO的背景下PCV的发展和视网膜前新生血管形成的潜在机制尚不清楚。眼科医生必须认识到这种关联是CO患者突然视力丧失的潜在原因,并考虑适当的诊断和管理策略。
    OBJECTIVE: To report a very rare and atypical case of an elderly Caucasian female patient who developed perilesional multiple polypoidal choroidal vasculopathy (PCV) as a probable complication of choroidal osteoma (CO), associated to preretinal neovascular membrane overlying the lesion.
    METHODS: Observational case report.
    UNASSIGNED: A 60-year-old Caucasian woman presented with blurred vision in her right eye (RE). Fundus examination revealed a round white-yellowish calcified deep lesion in the juxta-papillary superior area, measuring 4 disc-diameters, with well-defined scalloped margins and an irregular surface. B-scan ultrasonography and orbital tomography confirmed the diagnosis of choroidal osteoma (CO). Further investigation with multimodal imaging including infracyanine green angiography, fluorescein angiography, swept source optical coherence tomography and angiography highlighted the presence of multiple aneurysmal choroidal dilations around the CO, corresponding to PCV. We also noted the presence of a preretinal neovascular membrane overlying the CO. The patient was monitored with regular follow-up since no signs of activity were detected on multimodal imaging.
    CONCLUSIONS: Our case report represents an exceptional and atypical association between pre-retinal neovascularization, PCV and choroidal osteoma. While the mechanisms underlying the development of PCV and pre-retinal neovascularization in the setting of CO are not well understood, it is imperative for ophthalmologists to recognize this association as a potential cause of sudden vision loss in patients with CO, and to consider appropriate diagnostic and management strategies.
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  • 文章类型: Case Reports
    We report the findings observed in a young woman with ocular syphilis complicated with retinal and disc neovascularization successfully treated with intravitreal bevacizumab. Fluorescein angiography revealed in both eyes intense hyperfluorescence at the level of the disc, multifocal venous wall staining, multifocal paravenous leakage, multiple peripheral saccular venular dilations, diffuse retinal and macular edema, and retinal and disc neovascularization. There was no evidence of retinal ischemia in both eyes. After antibiotic and corticosteroid treatment, the neovascularization persisted in both eyes. Three consecutive doses of intravitreal bevacizumab were administered, with total regression of the retinal and disc neovascularization. Disc and retinal neovascularization along with nonocclusive retinal vasculitis may be a form of presentation of ocular syphilis. Combination of specific treatment, oral corticosteroids, and intravitreal bevacizumab may be useful for treating this clinical manifestation.
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  • 文章类型: Journal Article
    背景:长链多不饱和脂肪酸(LCPUFA)及其代谢产物与新生血管性眼病密切相关。然而,它们的氧化脂素在视网膜静脉阻塞(RVO)中的临床意义仍不确定.
    目的:本病例对照研究旨在探索RVO中LCPUFA氧化的代谢组学特征,并确定诊断和病理进展的潜在指标。
    方法:采用超高效液相色谱-串联质谱法对44例RVO成人和36例正常对照者血浆中ω-3和ω-6LCPUFA及其氧化脂素水平进行分析。结合主成分和正交投影的单变量分析用于潜在结构判别分析来筛选差异代谢物。主动脉环和脉络膜外植体发芽测定法用于研究5-氧代-二十碳四烯酸(ETE)对离体血管生成的影响。进行小管形成和伤口愈合测定以验证其对人视网膜微血管内皮细胞(HRMEC)功能的影响。
    结果:在患有RVO的成年人中测量到更高的ω-6和更低的ω-3LCPUFA血浆水平。控制(OR:2.34,95CI[1.42,3.86],P<0.001;OR:0.28,95CI[0.15,0.51],P<0.001)。代谢组学分析显示20LCPUFA及其氧化脂素在RVO中失调,包括花生四烯酸增加(ω-6,OR:1.85,95CI[1.18,2.90],P<0.001)及其脂氧合酶产物5-氧代-ETE(OR:11.76,95CI[3.73,37.11],P<0.001),以及降低的二十二碳六烯酸(ω-3,OR:0.13,95CI[0.05,0.33],P<0.001)。有趣的是,5-oxo-ETE在缺血性与非缺血性中枢RVO。外源性5-oxo-ETE减弱主动脉环和脉络膜外植体发芽,并以剂量依赖性方式抑制HRMEC的小管形成和迁移,可能通过抑制血管内皮生长因子信号通路。
    结论:血浆ω-6和ω-3LCPUFA及其氧化脂素水平与RVO相关。ω-6LCPUFA衍生的代谢物5-氧代-ETE是RVO发育和进展的潜在标志物。
    Long-chain polyunsaturated fatty acids (LCPUFAs) and their metabolites are closely related to neovascular eye diseases. However, the clinical significance of their oxylipins in retinal vein occlusion (RVO) remains inconclusive.
    This case-control study aimed to explore metabolomic profiles of LCPUFA oxidation in RVO and to identify potential indicators for diagnosis and pathologic progression.
    The plasma concentrations of ω-3 (n-3) and ω-6 (n-6) LCPUFA and their oxylipins in 44 adults with RVO and 36 normal controls were analyzed using ultraperformance liquid chromatography tandem mass spectrometry. Univariate analysis combined with principal component and orthogonal projections to latent structure discriminant analysis was used to screen differential metabolites. Aortic ring and choroidal explant sprouting assays were used to investigate the effects of 5-oxo-eicosatetraenoic acids (ETE) on angiogenesis ex vivo. Tubule formation and wound healing assays were performed to verify its effects on human retinal microvascular endothelial cell functions.
    Higher ω-6 and lower ω-3 LCPUFA plasma concentrations were measured in the adults with RVO compared with control (odds ratio [OR]: 2.34; 95% confidence interval [CI]: 1.42, 3.86; P < 0.001; OR: 0.28; 95% CI: 0.15, 0.51; P < 0.001). Metabolomic analysis revealed 20 LCPUFA and their oxylipins dysregulated in RVO, including increased arachidonic acid (ω-6, OR: 1.85; 95% CI: 1.18, 2.90; P < 0.001) and its lipoxygenase product 5-oxo-ETE (OR: 11.76; 95% CI: 3.73, 37.11; P < 0.001), as well as decreased docosahexaenoic acid (ω-3, OR: 0.13; 95% CI: 0.05, 0.33; P < 0.001). Interestingly, 5-oxo-ETE was downregulated in ischemic compared with nonischemic central RVO. Exogenous 5-oxo-ETE attenuated aortic ring and choroidal explant sprouting and inhibited tubule formation and migration of human retinal microvascular endothelial cells in a dose-dependent manner, possibly via suppressing the vascular endothelial growth factor signaling pathway.
    The plasma concentrations of ω-6 and ω-3 LCPUFA and their oxylipins were associated with RVO. The ω-6 LCPUFA-derived metabolite 5-oxo-ETE was a potential marker of RVO development and progression.
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  • 文章类型: Case Reports
    这项研究评估了长期结果,包括新生血管并发症,高压氧治疗(HBOT)急性治疗视网膜中央动脉阻塞(CRAO)。
    本文回顾了4例HBOT急性治疗的CRAO。回顾了视觉和结构结果。评估眼部并发症,包括新生血管形成,并确定危险因素。
    两名有非胰岛素依赖型糖尿病(NIDDM)病史的患者在治疗后1个月内出现了早发性眼部新生血管形成,受伤后1年以上的最终视力。一名患有NIDDM的患者和一名没有NIDDM的患者没有发生眼部新血管形成;两者的最终视敏度分别改善至20/400和20/250。
    接受HBOT急性治疗的CRAO患者可能需要更频繁和更早地监测并发症,尤其是糖尿病患者。需要进一步的研究来确定HBOT对CRAO的长期安全性和有效性,尤其是在糖尿病等全身性疾病的背景下。
    UNASSIGNED: This study assesses the long-term outcomes, including neovascular complications, of central retinal artery occlusion (CRAO) treated acutely with hyperbaric oxygen therapy (HBOT).
    UNASSIGNED: Four cases of CRAO treated acutely with HBOT were reviewed. Visual and structural outcomes were reviewed. Ocular complications including neovascularization were assessed and risk factors determined.
    UNASSIGNED: Two patients with a history of non-insulin dependent diabetes mellitus (NIDDM) developed early-onset ocular neovascularization within 1 month following treatment, with final vision of light perception over 1 year after injury. One patient with NIDDM and 1 patient without NIDDM did not develop ocular neovascularization; both had improvement in final visual acuity to 20/400 and 20/250, respectively.
    UNASSIGNED: Patients treated acutely with HBOT for CRAO may require more frequent and earlier monitoring for complications, especially in patients with diabetes. Further research is needed to determine the long-term safety and efficacy of HBOT for CRAO, especially in the setting of systemic disease such as diabetes.
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  • 文章类型: Case Reports
    背景:Eales病是一种影响中周边视网膜的临床综合征,伴有特发性闭塞性血管炎和随后可能的视网膜新生血管形成。该疾病可发展成视觉威胁的并发症。病例介绍:我们报告了一名40岁的白人男性,有可卡因滥用史,左眼视力模糊(LE)。眼底检查显示玻璃体出血,静脉血管的外周鞘,LE的视网膜新生血管区域,和右眼周围闭塞性静脉炎。除了因子VLeiden的杂合突变外,整个血清学面板均为阴性。临床和生化参数提示诊断为Eales病。用地塞米松治疗,每天每公斤1毫克,在4个月内慢慢减少,和外周激光光凝使临床体征和症状消退。结论:此病例显示与可卡因滥用相关的Eales病的罕见表现。可卡因滥用和血栓形成,作为辅因子,可能在这种视网膜病变的发病途径上使视网膜微循环敏感。此外,鉴于这一假设,在这种情况下,建议眼科医生进行全面的眼科和一般病史,以调查药物滥用和凝血障碍。
    Background: Eales disease is a clinical syndrome affecting the mid-peripheral retina with an idiopathic occlusive vasculitis and possible subsequent retinal neovascularization. The disease can develop into visually threatening complications. Case Presentation: We report the case of a 40-year-old Caucasian male with a history of cocaine abuse who presented with blurred vision in the left eye (LE). Fundus examination showed vitreous hemorrhages, peripheral sheathing of venous blood vessels, areas of retinal neovascularization in the LE, and peripheral occlusive phlebitis in the right eye. The full serologic panel was negative except for the heterozygous mutation of factor V Leiden. Clinical and biochemical parameters suggested a diagnosis of Eales disease. Therapy with dexamethasone, 1 mg per kg per day, tapered down slowly over 4 months, and peripheral laser photocoagulation allowed a regression of clinical signs and symptoms. Conclusion: This case shows an uncommon presentation of Eales disease associated with cocaine abuse. Both cocaine abuse and a thrombophilic pattern, as cofactors, might have sensitized the retinal microcirculation on the pathogenetic route to this retinal pathology. Furthermore, in view of this hypothesis, a thorough ocular and general medical history investigating drug abuse and coagulation disorders is recommended for ophthalmologists in such cases.
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  • 文章类型: Letter
    暂无摘要。
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  • 文章类型: Case Reports
    目的:报告一名30岁女性患有Eales病,显示双侧增生组织。使用宽场光学相干断层扫描血管成像(宽场OCTA)评估视网膜血管,与传统仪器相比,它具有更宽的视角。
    方法:病例报告。
    结果:WidefieldOCTA在双眼显示广泛的非灌注区和A-V分流,左眼的血管结构似乎是视网膜新生血管。超宽场荧光血管造影显示早期没有充盈延迟,在双侧眼睛中,从中缘到锯齿缘的巨大非灌注区域,左眼的视网膜新生血管.根据超宽场血管造影的结果,OCTA检查和系统检查,在排除了所有的鉴别疾病之后,最终做出了Eales病的诊断.
    结论:在患有Eales病的患者中,与超宽视野血管造影结果一致的外周非灌注区域和视网膜新生血管通过宽视野OCTA无创证实.WidefieldOCTA可用于检测眼底的外周改变。
    OBJECTIVE: The purpose of this study was to report a 30-year-old woman with Eales disease, showing bilateral proliferative tissue. The retinal vessels were evaluated using widefield optical coherence tomography angiography (widefield OCTA), which has a wider angle of view compared with conventional instruments.
    METHODS: This is a case report.
    RESULTS: Widefield OCTA showed an extensive nonperfusion area and A-V shunt in both eyes and a vascular structure in the left eye that appeared to be retinal neovascularization. Ultra-widefield fluorescein angiography revealed no filling delay in the early phase, a vast nonperfusion area from the midperiphery to the ora serrata in bilateral eyes, and retinal neovascularization in the left eye. Based on the results of ultra-widefield angiography, OCTA examination, and systemic examination, a diagnosis of Eales disease was finally made after all the differential diseases had been excluded.
    CONCLUSIONS: In a patient with Eales disease, the peripheral nonperfusion area and retinal neovascularization that were consistent with the ultra-widefield angiography findings were noninvasively confirmed by widefield OCTA. Widefield OCTA is useful in the detection of peripheral changes of the fundus.
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  • 文章类型: Journal Article
    背景:乳头水肿是特发性颅内高压(IIH)患者的主要眼部表现,尽管也可能发生几种脉络膜视网膜异常并导致视力丧失。本文的目的是描述两种与特发性颅内高压相关的脉络膜视网膜异常:一种是脉络膜褶皱,另一种是息肉状脉络膜血管病变,这种疾病中极其不寻常的眼部并发症。
    方法:案例1:一名47岁女性,既往诊断为特发性颅内高压,接受体重减轻和乙酰唑胺治疗,在接下来的6个月内,视盘水肿逐渐消退。患者随访10年,乳头水肿消失,但脉络膜褶皱保持不变。病例2:一名61岁的女性患者被视为对5年IIH病史的随访检查,该病史表现为乳头水肿。该患者无症状,但眼底镜检查评估显示,在OD上有淡黄色白色的乳头旁视网膜下结节病变。进行了多模态成像研究,患者被诊断为罕见的,最近刚刚描述的IIH和息肉状脉络膜血管病变的关联。
    结论:乳头水肿,RNFL和视网膜神经节细胞丢失是IIH最常见的结构性并发症,但是脉络膜视网膜并发症是重要的发现,应仔细评估此类患者。对此类发生的认识以及适当的临床和多模态成像研究的使用对于其早期发现非常重要。导致适当的治疗和预防进一步的视力丧失。
    BACKGROUND: Papilledema is the main ocular finding in patients with idiopathic intracranial hypertension (IIH) although several chorioretinal abnormalities may also occur and contribute to visual loss. The purpose of this paper is to describe two cases of chorioretinal abnormalities associated with idiopathic intracranial hypertension: one with choroidal folds and another with polypoidal choroidal vasculopathy, an extremely unusual ocular complication in the disease.
    METHODS: Case 1: A 47-year-old woman previous diagnosed with idiopathic intracranial hypertension treated with weight loss and acetazolamide that over the following 6 months had optic disc edema gradually resolved. The patient was follow-up for a period of 10 years and the papilledema disappeared, but choroidal folds remained unchanged. Case 2: A 61-year-old female patient was seen as a follow-up examination of a 5-year history of IIH that presented with papilledema. The patient was asymptomatic but fundoscopy evaluation revealed a yellowish white peripapillary subretinal nodular lesion temporally in OD. Multimodal imaging studies were made, and the patient was diagnosed with a rare and just recent described association of IIH and polypoidal choroidal vasculopathy.
    CONCLUSIONS: Papilledema, RNFL and retinal ganglion cell loss are the most common structural complications of IIH, but chorioretinal complications are important findings and should be carefully evaluated in such patients. Awareness of such occurrence and the use of appropriated clinical and multimodal imaging studies are of great importance for its early detection, leading to proper treatment and prevention of further visual loss.
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  • 文章类型: Review
    目的:本病例报告描述了一个健康的12岁女孩的视网膜中央静脉阻塞(CRVO),该女孩在24岁时出现了视网膜新生血管。据我们所知,这是报告的儿科CRVO事件与新生血管形成之间的最长时间.
    方法:患者有完整的病史,体检,和实验室检查以确定导致血管事件的潜在危险因素。眼底照片,在患者的整个治疗过程中进行光学相干断层扫描和荧光素血管造影。
    结果:家族史为非缴费型,但实验室检测显示亚甲基四氢叶酸还原酶中的同型半胱氨酸水平轻度升高和纯合C677T突变.因此,她开始补充叶酸。迄今为止,患者没有进一步的眼部或全身血栓形成事件。
    结论:出现CRVO的儿科患者应进行全身检查,并需要长期随访以避免并发症,如眼内出血,牵引性视网膜脱离,和新生血管性青光眼。
    OBJECTIVE: This case report describes a central retinal vein occlusion in a healthy 12-year-old girl who developed retinal neovascularization at 24 years of age. To the knowledge of the authors, this is the longest time between a reported pediatric central retinal vein occlusion event and neovascularization.
    METHODS: The patient underwent a full history, physical examination, and laboratory workup to determine potential risk factors contributing to the vascular event. Fundus photographs, optical coherence tomography, and fluorescein angiography were performed throughout the patient\'s treatment course.
    RESULTS: Family history was noncontributory, but laboratory testing revealed a mildly elevated homocysteine level and homozygous C677T mutation in methylenetetrahydrofolate reductase. As a result, she was started on folate supplementation. The patient has had no further ocular or systemic thrombotic events to date.
    CONCLUSIONS: Pediatric patients presenting with central retinal vein occlusion should undergo a systemic workup and require long-term follow-up to avoid complications, such as intraocular hemorrhage, tractional retinal detachments, and neovascular glaucoma.
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