Eye Abnormalities

眼睛异常
  • 文章类型: Journal Article
    目的:描述法国普通人群中儿童和胎儿的眼部异常(OAs),为了估计它们的患病率,并调查产前药物暴露与子宫内或儿童早期OA发生之间的可能关联。
    方法:我们使用EFEMERIS队列进行了病例对照研究,包含在Haute-Garonne注册的怀孕及其结局的数据库。我们收集了终止妊娠时胎儿或出生时儿童的OA描述以及9个月和2岁儿童的眼科检查结果。
    结果:总体OAs的患病率为2.13%,其中0.04%为先天性眼部畸形(COM)。共选择2,968例病例和136,619例对照进行分析。两组在产前暴露于消化道和代谢药物方面存在显着差异,心血管系统,和呼吸系统。多因素分析显示,母亲在怀孕期间和怀孕前1个月暴露于镁的孩子患OA的风险增加(OR=1.24;95%CI,1.11-1.38)。
    结论:法国首个关于OA的药物流行病学研究表明,OA可能与接触常用药物有关。鉴于COM的稀有性,较大,国际研究是有必要的。
    OBJECTIVE: To describe ocular anomalies (OAs) in children and fetuses in a French general population, to estimate their prevalence, and to investigate a possible association between prenatal medication exposure and the occurrence of OA in utero or in early childhood.
    METHODS: We conducted a case-control study using the EFEMERIS cohort, a database containing pregnancies registered in Haute-Garonne and their outcomes. We collected OA descriptions of fetuses at the time of pregnancy termination or of children at birth and the results of eye examinations of children at 9 months and 2 years of age.
    RESULTS: The prevalence of overall OAs was 2.13%, of which 0.04% were congenital ocular malformations (COMs). A total of 2,968 cases and 136,619 controls were selected for analysis. There was a significant difference between the two groups with regard to prenatal exposure to medications for the digestive tract and metabolism, the cardiovascular system, and the respiratory system. Multivariable analysis revealed an increased risk of OA in children of mothers exposed to magnesium during and 1 month before pregnancy (OR = 1.24; 95% CI, 1.11-1.38).
    CONCLUSIONS: This first pharmaco-epidemiological study on OA in France suggests that OA may be associated with exposure to commonly used medications. Given the rarity of COM, larger, international studies are warranted.
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  • 文章类型: Journal Article
    背景:综合征性纤毛病是一组以广泛的临床和遗传重叠为特征的先天性疾病,包括肥胖,视觉问题,骨骼异常,智力迟钝,和肾脏疾病。这些疾病中病理生理学的标志是纤毛功能或形成缺陷。许多不同的基因与这些疾病的发病机理有关,但一些患者仍不清楚他们的基因型。
    方法:本研究的目的是确定综合征性纤毛病患者的遗传原因。在台湾南部的一个单一诊断医疗中心招募了怀疑或符合任何类型的综合征性纤毛病临床诊断标准的患者。全外显子组测序(WES)用于鉴定其基因型并阐明台湾综合征性纤毛病患者的突变谱。在患者登记时收集临床信息。
    结果:共有14例分子诊断为综合征型纤毛病。在这些案例中,10人患有Bardet-Biedl综合征(BBS),包括8例BBS2患者和2例BBS7患者。此外,两例被诊断为Alström综合征,一个患有14型口腔-面部-数字综合征,另一个患有10型Joubert综合征。总共鉴定了4种新的变体。一个反复发生的剪接位点突变,BBS2:c.534+1G>T,存在于所有8名BBS2患者中,暗示了创始人的影响。一名具有纯合子c.534+1G>T突变的BBS2患者携带第三个纤毛等位基因,TTC21B:c.264_267dupTAGA,无义突变导致过早终止密码子和蛋白质截短。
    结论:全外显子组测序(WES)有助于识别纤毛病患者的分子致病变异,以及特定人群的遗传热点突变。应将其视为以多种基因和多种临床表现为特征的异质性疾病的一线基因检测。
    BACKGROUND: Syndromic ciliopathies are a group of congenital disorders characterized by broad clinical and genetic overlap, including obesity, visual problems, skeletal anomalies, mental retardation, and renal diseases. The hallmark of the pathophysiology among these disorders is defective ciliary functions or formation. Many different genes have been implicated in the pathogenesis of these diseases, but some patients still remain unclear about their genotypes.
    METHODS: The aim of this study was to identify the genetic causes in patients with syndromic ciliopathy. Patients suspected of or meeting clinical diagnostic criteria for any type of syndromic ciliopathy were recruited at a single diagnostic medical center in Southern Taiwan. Whole exome sequencing (WES) was employed to identify their genotypes and elucidate the mutation spectrum in Taiwanese patients with syndromic ciliopathy. Clinical information was collected at the time of patient enrollment.
    RESULTS: A total of 14 cases were molecularly diagnosed with syndromic ciliopathy. Among these cases, 10 had Bardet-Biedl syndrome (BBS), comprising eight BBS2 patients and two BBS7 patients. Additionally, two cases were diagnosed with Alström syndrome, one with Oral-facial-digital syndrome type 14, and another with Joubert syndrome type 10. A total of 4 novel variants were identified. A recurrent splice site mutation, BBS2: c.534 + 1G > T, was present in all eight BBS2 patients, suggesting a founder effect. One BBS2 patient with homozygous c.534 + 1G > T mutations carried a third ciliopathic allele, TTC21B: c.264_267dupTAGA, a nonsense mutation resulting in a premature stop codon and protein truncation.
    CONCLUSIONS: Whole exome sequencing (WES) assists in identifying molecular pathogenic variants in ciliopathic patients, as well as the genetic hotspot mutations in specific populations. It should be considered as the first-line genetic testing for heterogeneous disorders characterized by the involvement of multiple genes and diverse clinical manifestations.
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  • 文章类型: Observational Study
    背景:结构特征对先天性角膜混浊(CCO)的手术预后有影响。CCO的结构分类系统,然而,缺乏。根据超声生物显微镜(UBM)在婴儿和幼儿CCO发现的数据,这项研究提出了一个前段结构严重程度的分类系统。
    方法:医疗记录,我们回顾了2018年12月至2022年6月在大学第三医院诊断为CCO的婴幼儿的术前UBM图像和裂隙灯照片.根据UBM图像中观察到的眼前节结构特征,眼睛分类如下:U1,仅角膜不透明;U2,中央前粘连;U3,周围前粘连合并闭角;U4,无虹膜或晶状体异常。根据先前的研究,在裂隙灯照片中观察到的不透明外观和角膜血管形成密度被分配等级。还记录了血管形成的程度。分析了相应的眼内异常分类和眼表病变的严重程度。
    结果:在81只眼睛(65例患者)中,41(50.6%)为右眼,40只(49.4%)为左眼。检查时的中位年龄为6.91个月(n=81、1.00、34.00)。81只眼睛中有2只(2.5%)被归类为U1,20只(24.7%)被归类为U2,22只(27.2%)被归类为U3a,11(13.6%)为U3b,26(32.1%)为U4。双侧CCO眼有更严重的UBM分类(P=0.019),更严重的发育不全(P=0.012)和更大的闭角(P=0.009)。UBM分类更严重的眼睛具有更高的不透明度等级(P=0.003)和血管化等级(P=0.014)以及更大的血管化程度(P=0.001)。发育不全的眼睛有更高的雾霾等级(P=0.012)和更严重的血管形成(密度P=0.003;程度P=0.008),而角闭合范围与雾度(P=0.013)和血管化程度(P=0.003)有关。
    结论:这种基于UBM和裂隙灯摄影结果的CCO婴幼儿眼睛分类方法能够真实反映眼表和眼前节的异常程度,并与眼表异常的严重程度相关。该方法可能为CCO眼角膜移植术的外科手术设计和预后确定提供有意义的指导。
    BACKGROUND: The structural features have an impact on the surgical prognosis for congenital corneal opacity (CCO). The structural classification system of CCO, however, is lacking. Based on data from ultrasound biomicroscopy (UBM) findings in infants and toddlers with CCO, this research proposed a classification system for the anterior segment structure severity.
    METHODS: Medical records, preoperative UBM images and slit-lamp photographs of infants and toddlers diagnosed with CCO at University Third Hospital between December 2018 and June 2022 were reviewed. According to the anterior segment structural features observed in UBM images, eyes were classified as follows: U1, opaque cornea only; U2, central anterior synechia; U3, peripheral anterior synechia combined with angle closure; and U4, aniridia or lens anomaly. The opacity appearance and corneal vascularization density observed in slit-lamp photographs were assigned grades according to previous studies. The extent of vascularization was also recorded. The corresponding intraocular anomaly classifications and ocular surface lesion severity were analysed.
    RESULTS: Among 81 eyes (65 patients), 41 (50.6%) were right eyes, and 40 (49.4%) were left eyes. The median age at examination was 6.91 months (n = 81, 1.00, 34.00). Two (2.5%) of the 81 eyes were classified as U1, 20 (24.7%) as U2, 22 (27.2%) as U3a, 11 (13.6%) as U3b and 26 (32.1%) as U4. Bilateral CCO eyes had more severe UBM classifications (P = 0.019), more severe dysgenesis (P = 0.012) and a larger angle closure (P = 0.009). Eyes with more severe UBM classifications had higher opacity grades (P = 0.003) and vascularization grades (P = 0.014) and a larger vascularization extent (P = 0.001). Eyes with dysgenesis had higher haze grades (P = 0.012) and more severe vascularization (P = 0.003 for density; P = 0.008 for extent), while the angle closure range was related to haze grade (P = 0.013) and vascularization extent (P = 0.003).
    CONCLUSIONS: This classification method based on UBM and slit-lamp photography findings in the eyes of CCO infants and toddlers can truly reflect the degree of abnormality of the ocular surface and anterior segment and is correlated with the severity of ocular surface anomalies. This method might provide meaningful guidance for surgical procedure design and prognostic determinations for keratoplasty in CCO eyes.
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  • 文章类型: Multicenter Study
    目的:为了表征PHACE综合征的长期结局研究设计:多中心研究,对年龄≥10岁的明确PHACE综合征个体进行横断面访谈和图表回顾。图表中的数据是跨多个与PHACE相关的主题收集的。图表中没有的数据是直接从患者那里收集的。利克特量表用于评估具体发现的影响。患者报告的结果测量信息系统(PROMIS)量表用于评估生活质量领域。
    结果:共有104/153(68%)个接触者参与研究,年龄中位数为14岁(范围为10-77岁)。婴儿血管瘤(IH)残留占94.1%。大约一半的人接受了残留IH的激光治疗,大多数参与者(89.5%)对外观感到满意或非常满意。常见的神经认知表现包括头痛/偏头痛(72.1%),参与者报告的学习差异(45.1%),以及个性化教育计划的需求(39.4%)。脑血管动脉病变占91.3%,在有随访影像学报告的20/68(29.4%)患者中发现了进展。其中,6/68(8.8%)发生烟雾血管病变或进行性狭窄闭塞,导致威利斯圆水平或以上的孤立循环。尽管脑血管动脉病很普遍,缺血性卒中患者的比例较低(2/104;1.9%).PROMIS全球健康评分低于人口标准值至少1个标准差。
    结论:PHACE综合征与长期,轻度至重度疾病,包括IH残留,头痛,学习差异,和进行性动脉病变.初级和专业后续护理对于PHACE患者进入成年期至关重要。
    OBJECTIVE: To characterize long-term outcomes of PHACE syndrome.
    METHODS: Multicenter study with cross-sectional interviews and chart review of individuals with definite PHACE syndrome ≥10 years of age. Data from charts were collected across multiple PHACE-related topics. Data not available in charts were collected from patients directly. Likert scales were used to assess the impact of specific findings. Patient-Reported Outcomes Measurement Information System (PROMIS) scales were used to assess quality of life domains.
    RESULTS: A total of 104/153 (68%) individuals contacted participated in the study at a median of 14 years of age (range 10-77 years). There were infantile hemangioma (IH) residua in 94.1%. Approximately one-half had received laser treatment for residual IH, and the majority (89.5%) of participants were satisfied or very satisfied with the appearance. Neurocognitive manifestations were common including headaches/migraines (72.1%), participant-reported learning differences (45.1%), and need for individualized education plans (39.4%). Cerebrovascular arteriopathy was present in 91.3%, with progression identified in 20/68 (29.4%) of those with available follow-up imaging reports. Among these, 6/68 (8.8%) developed moyamoya vasculopathy or progressive stenoocclusion, leading to isolated circulation at or above the level of the circle of Willis. Despite the prevalence of cerebrovascular arteriopathy, the proportion of those with ischemic stroke was low (2/104; 1.9%). PROMIS global health scores were lower than population norms by at least 1 SD.
    CONCLUSIONS: PHACE syndrome is associated with long-term, mild to severe morbidities including IH residua, headaches, learning differences, and progressive arteriopathy. Primary and specialty follow-up care is critical for PHACE patients into adulthood.
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  • 文章类型: Observational Study
    目的:先天性鼻泪管阻塞(CNLDO)是婴儿溢泪的最常见原因。在大多数情况下,通常在第1年结束时通过保守的管理完全解决。许多研究已经证实在生命的第一年期间症状的自发消退的高频率(80%-90%)。本研究的目的是确定泪囊按摩治疗CNLDO的有效性。
    方法:这项研究是在东亚一家三级医院进行的,历时5年。每1个月后接受泪囊按摩治疗并被诊断为CNLDO的婴儿。CNLDO的分辨率是通过对泪液的改善和荧光素染料消失试验来判断的。
    结果:经过保守管理,740例(86.75%)患儿经连续泪囊按摩3个月后完全恢复。一百零五名(12.31%)婴儿即使在12个月时也没有通过囊按摩恢复,在这种情况下进行探测。6例患者需要重复探查(0.07%)。两名患者没有康复,并进行了dacrocystorhinostic吻合术。约70.6%的婴儿在6个月内康复。早期的介绍年龄,发病率越低。
    结论:婴儿中CNLDO的发病率约为6%-20%。一些研究显示在生命的第一年内自发消退。在这项研究中,CNLDO囊按摩的症状缓解成功率为86.75%。在CNLDO中,保守管理应该是直到12个月大的一线治疗。
    OBJECTIVE: Congenital nasolacrimal duct obstruction (CNLDO) is the most common cause of epiphora in infants. It usually resolves completely by the end of 1st year with conservative management in most cases. Many studies have confirmed high frequency (80%-90%) of spontaneous resolution of symptoms during the 1st year of life. The aim of this study is to determine the effectiveness of the lacrimal sac massage in the treatment of CNLDO.
    METHODS: The study was done in a tertiary care hospital in eastern Asia over 5 years. Each infant presenting with epiphora and diagnosed as CNLDO was treated with lacrimal sac massage and reviewed after every 1 month. The resolution of CNLDO was judged by the improvement of epiphora and from the fluorescein dye disappearance test.
    RESULTS: Following conservative management, 740 (86.75%) infants recovered completely after 3 months of continuous lacrimal sac massvage. One hundred and five (12.31%) infants did not recover with sac massage even at 12 months, in which cases probing was done. Repeat probing was needed in six patients (0.07%). Two patients did not recover, and a dacrocystorhinostomy was carried out. About 70.6% of infants recovered within 6 months of age. Earlier the age of presentation, the lesser the morbidity.
    CONCLUSIONS: The incidence of CNLDO is about 6%-20% among infants. Several studies showed spontaneous resolution within 1st year of life. In this study, the success rate of resolution of symptoms in CNLDO with sac massage is 86.75%. Conservative management should be the first line of treatment till 12 months of age in CNLDO.
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  • 文章类型: Journal Article
    背景:婴儿血管瘤(IHs)可以是PHACE(后颅窝异常,血管瘤,动脉异常,心脏异常,眼睛异常)节段性时的综合征,广泛的,并位于面部或颈部。初步评估是成文的,众所周知的,但没有对这些患者进行随访的建议。这项研究的目的是评估不同相关异常的长期患病率。
    方法:有面部或颈部大段IH病史的患者。2011年至2016年间诊断的病例纳入研究.每个病人都接受了眼科检查,牙科,ENT(耳朵,鼻子,和喉咙),皮肤病学,神经儿科,和纳入时的放射评估。前瞻性评估了8例患者,其中5例患有PHACE综合征。
    结果:经过平均8.5年的随访,三名患者表现为口腔粘膜的血管瘤样,两个有听力损失,还有两个有耳镜异常。没有患者出现眼科异常。3例神经系统检查改变。在四分之三的患者中,大脑磁共振成像随访没有变化,并且在1例患者中发现了小脑部的萎缩。其中五名患者发现神经发育障碍,五名患者观察到学习困难。S1位置似乎与神经发育障碍和小脑畸形的高风险有关。虽然S3位置与更多进行性并发症相关,包括神经血管,心血管,和ENT异常。
    结论:我们的研究报告了面部或颈部大段IH患者的晚期并发症,无论是否与PHACE综合征相关,并提出了一种优化长期跟踪的算法。
    BACKGROUND: Infantile hemangiomas (IHs) can be part of PHACE (posterior fossa anomalies, hemangioma, arterial anomalies, cardiac anomalies, eye anomalies) syndrome when they are segmental, extensive, and located on the face or neck. The initial assessment is codified and well known, but there are no recommendations for the follow-up of these patients. The aim of this study was to assess the long-term prevalence of different associated abnormalities.
    METHODS: Patients with a history of large segmental IHs of the face or neck. diagnosed between 2011 and 2016 were included in the study. Each patient underwent an ophthalmological, dental, ENT (ear, nose, and throat), dermatological, neuro-pediatric, and radiological assessment at inclusion. Eight patients including five with PHACE syndrome were prospectively evaluated.
    RESULTS: After a mean follow-up of 8.5 years, three patients presented with an angiomatous aspect of the oral mucosa, two with hearing loss, and two with otoscopic abnormalities. No patients developed ophthalmological abnormalities. The neurological examination was altered in three cases. Brain magnetic resonance imaging follow-up was unchanged in three out four patients and revealed atrophy of the cerebellar vermis in 1 patient. Neurodevelopmental disorders were found in five of the patients and learning difficulties were observed in five patients. The S1 location appears to be associated with a higher risk of neurodevelopmental disorders and cerebellar malformations, while the S3 location was associated with more progressive complications, including neurovascular, cardiovascular, and ENT abnormalities.
    CONCLUSIONS: Our study reported late complications in patients with a large segmental IH of the face or neck, whether associated with PHACE syndrome or not, and we proposed an algorithm to optimize the long-term follow-up.
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  • 文章类型: Observational Study
    背景:术语先天性眼运动性失用症(COMA),由Cogan于1952年创造,指定无能力启动自愿的眼球运动,执行快速的视线转移,所谓的扫视。虽然被一些作者认为是一个恶学实体,越来越多的证据表明,COMA仅仅是一种具有病因异质性的神经系统症状.2016年,我们报告了一项观察性研究,纳入21例确诊患有COMA的患者。对这21名受试者的神经影像学特征进行彻底的重新评估后,发现其中11名受试者中存在先前未识别的磨牙征(MTS),从而导致Joubert综合征(JBTS)的诊断重新分配。另外两名患者的特定MRI特征表明Poretti-Boltshauser综合征(PTBHS)和肾小管病。在八个病人中,没有获得更精确的诊断.我们进行了该队列研究,旨在澄清每位患者COMA的明确遗传基础。
    结果:使用候选基因方法,分子遗传小组或外显子组测序,我们检测到21例COMA患者中17例的致病分子遗传变异.在这11名受试者中,有9名因神经影像学新发现的MTS而被诊断为JBTS,我们在已知与JBTS相关的五个不同基因中发现了致病突变,包括KIAA0586,NPHP1,CC2D2A,MKS1和TMEM67。在两个没有MTSMRI的个体中,在NPHP1和KIAA0586中检测到致病变异,分别诊断为JBTS4型和23型。三名患者在SUFU中携带杂合截断变体,代表新鉴定的JBTS形式的第一个描述。通过检测LAMA1和TUBA1A的致病变异证实了PTBHS和肾小管病的临床诊断,分别。一名MRI正常的患者,ATM的双等位基因致病变异表明变异共济失调毛细血管扩张症。外显子组测序未能揭示其余四名受试者的致病遗传变异,其中两个在MRI上有清晰的MTS。
    结论:我们的研究结果表明,在COMA中存在明显的病因异质性,在我们的队列中检测到81%(17/21)的致病突变,9个不同的基因受到影响,主要与JBTS相关的基因。我们提供了COMA的诊断算法。
    The term congenital ocular motor apraxia (COMA), coined by Cogan in 1952, designates the incapacity to initiate voluntary eye movements performing rapid gaze shift, so called saccades. While regarded as a nosological entity by some authors, there is growing evidence that COMA designates merely a neurological symptom with etiologic heterogeneity. In 2016, we reported an observational study in a cohort of 21 patients diagnosed as having COMA. Thorough re-evaluation of the neuroimaging features of these 21 subjects revealed a previously not recognized molar tooth sign (MTS) in 11 of them, thus leading to a diagnostic reassignment as Joubert syndrome (JBTS). Specific MRI features in two further individuals indicated a Poretti-Boltshauser syndrome (PTBHS) and a tubulinopathy. In eight patients, a more precise diagnosis was not achieved. We pursued this cohort aiming at clarification of the definite genetic basis of COMA in each patient.
    Using a candidate gene approach, molecular genetic panels or exome sequencing, we detected causative molecular genetic variants in 17 of 21 patients with COMA. In nine of those 11 subjects diagnosed with JBTS due to newly recognized MTS on neuroimaging, we found pathogenic mutations in five different genes known to be associated with JBTS, including KIAA0586, NPHP1, CC2D2A, MKS1, and TMEM67. In two individuals without MTS on MRI, pathogenic variants were detected in NPHP1 and KIAA0586, arriving at a diagnosis of JBTS type 4 and 23, respectively. Three patients carried heterozygous truncating variants in SUFU, representing the first description of a newly identified forme fruste of JBTS. The clinical diagnoses of PTBHS and tubulinopathy were confirmed by detection of causative variants in LAMA1 and TUBA1A, respectively. In one patient with normal MRI, biallelic pathogenic variants in ATM indicated variant ataxia telangiectasia. Exome sequencing failed to reveal causative genetic variants in the remaining four subjects, two of them with clear MTS on MRI.
    Our findings indicate marked etiologic heterogeneity in COMA with detection of causative mutations in 81% (17/21) in our cohort and nine different genes being affected, mostly genes associated with JBTS. We provide a diagnostic algorithm for COMA.
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  • 文章类型: Randomized Controlled Trial
    目的:本研究旨在评估激光周边虹膜切开术(LPI)预防14年后原发性房角闭合可疑(PACS)患者的疗效,并确定从PACS转换为原发性房角闭合(PAC)的危险因素。
    方法:中山角封闭预防研究的扩展随访。
    方法:八百八十九名50至70岁的中国患者患有双侧PACS。
    方法:每位患者随机选择1只眼睛接受LPI,用未经处理的眼睛作为对照。因为青光眼的风险很低,急性闭角型(AAC)很少发生,尽管在6年访视后报告了LPI的显著获益,但随访时间延长至14年.
    方法:PAC的发生率,包括外周前粘连的复合终点,眼内压(IOP)>24mmHg,或AAC。
    结果:在14年间,390只LPI治疗的眼睛和388只对照眼睛失去随访。共有33只LPI治疗的眼和105只对照眼达到主要终点(P<0.01)。在他们体内,1只LPI处理的眼睛和5只对照眼睛进展到AAC。在2只LPI治疗的眼睛和4只对照眼睛中发现了原发性闭角型青光眼。进展为PAC的风险比为0.31(95%置信区间,与对照眼相比,LPI治疗的眼睛为0.21-0.46)。在14年的访问中,LPI治疗的眼睛显示更严重的核性白内障,更高的IOP,和更大的角宽度和角膜缘前房深度(LACD)比对照眼。更高的IOP,较浅的LACD,和较大的中央前房深度(CACD)与对照眼终点发展风险增加相关.在治疗组中,眼压较高的眼睛,较浅的LACD,暗室易感刺激试验(DRPPT)后IOP升高或更低,更有可能在LPI后显示PAC。
    结论:尽管LPI后PAC发生率减少了三分之二,在14年以上的社区PACS人群中,累积进展风险相对较低.除了IOP,DRPPT后IOP升高,CACD,和LACD,需要更多的危险因素来实现PAC发生的精确预测和指导临床实践。
    背景:作者对本文讨论的任何材料都没有专有或商业利益。
    This study aimed to evaluate the efficacy of laser peripheral iridotomy (LPI) prophylaxis for patients with primary angle-closure suspect (PACS) after 14 years and to identify risk factors for the conversion from PACS to primary angle closure (PAC).
    Extended follow-up of the Zhongshan Angle-Closure Prevention Study.
    Eight hundred eighty-nine Chinese patients 50 to 70 years of age with bilateral PACS.
    Each patient received LPI in 1 randomly selected eye, with the fellow untreated eye serving as a control. Because the risk of glaucoma was low and acute angle closure (AAC) occurred only rarely, the follow-up was extended to 14 years despite substantial benefits of LPI reported after the 6-year visit.
    Incidence of PAC, a composite end point including peripheral anterior synechiae, intraocular pressure (IOP) of > 24 mmHg, or AAC.
    During the 14 years, 390 LPI-treated eyes and 388 control eyes were lost to follow-up. A total of 33 LPI-treated eyes and 105 control eyes reached primary end points (P < 0.01). Within them, 1 LPI-treated eye and 5 control eyes progressed to AAC. Primary angle-closure glaucoma was found in 2 LPI-treated eyes and 4 control eyes. The hazard ratio for progression to PAC was 0.31 (95% confidence interval, 0.21-0.46) in LPI-treated eyes compared with control eyes. At the 14-year visit, LPI-treated eyes showed more severe nuclear cataract, higher IOP, and larger angle width and limbal anterior chamber depth (LACD) than control eyes. Higher IOP, shallower LACD, and greater central anterior chamber depth (CACD) were associated with an increased risk of end points developing in control eyes. In the treated group, eyes with higher IOP, shallower LACD, or less IOP elevation after the darkroom prone provocative test (DRPPT) were more likely to demonstrate PAC after LPI.
    Despite a two-third decrease in PAC occurrence after LPI, the cumulative risk of progression was relatively low in the community-based PACS population over 14 years. Apart from IOP, IOP elevation after DRPPT, CACD, and LACD, more risk factors are needed to achieve precise prediction of PAC occurrence and to guide clinical practice.
    The author(s) have no proprietary or commercial interest in any materials discussed in this article.
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  • 文章类型: Journal Article
    Joubert综合征(JS)是一种常染色体隐性遗传病,主要影响小脑和脑干的形态发生。迄今为止,在JS中已经鉴定出至少39个基因的突变;所有这些基因编码蛋白都参与了初级纤毛和中心粒的生物发生。最近使用携带缺失或突变的JS相关基因的小鼠模型进行的研究显示小脑发育不全,神经发生减少;然而,在体内发育过程中研究特定的神经元行为仍然具有挑战性。这里,我们描述了一种体内小脑电穿孔技术,可用于将携带GFP和/或shRNA的质粒递送到主要的小脑细胞类型中,颗粒神经元,从它们的祖先状态到它们以时空特定的方式成熟。通过将该方法与小脑免疫染色和EdU掺入相结合,这些方法能够研究颗粒神经元祖细胞中JS相关基因的细胞自主效应,包括异位神经元的发病机制和神经元分化的缺陷。这种方法为理解JS相关基因在体内小脑发育过程中的多方面作用提供了信息。
    Joubert syndrome (JS) is an autosomal recessive ciliopathy that mainly affects the morphogenesis of the cerebellum and brain stem. To date, mutations in at least 39 genes have been identified in JS; all these gene-encoding proteins are involved in the biogenesis of the primary cilium and centrioles. Recent studies using the mouse model carrying deleted or mutated JS-related genes exhibited cerebellar hypoplasia with a reduction in neurogenesis; however, investigating specific neuronal behaviors during their development in vivo remains challenging. Here, we describe an in vivo cerebellar electroporation technique that can be used to deliver plasmids carrying GFP and/or shRNAs into the major cerebellar cell type, granule neurons, from their progenitor state to their maturation in a spatiotemporal-specific manner. By combining this method with cerebellar immunostaining and EdU incorporation, these approaches enable the investigation of the cell-autonomous effect of JS-related genes in granule neuron progenitors, including the pathogenesis of ectopic neurons and the defects in neuronal differentiation. This approach provides information toward understanding the multifaceted roles of JS-related genes during cerebellar development in vivo.
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  • 文章类型: Journal Article
    目的:评估急诊医师对机器人获取的视网膜光学相干断层扫描图像的诊断性能,以检测急诊科患者的后眼异常。
    方法:2020年11月至2021年10月到杜克大学医院急诊科就诊的成年患者出现急性视觉变化,头痛,本试验研究纳入了接受眼科咨询的局灶性神经功能缺损或局灶性神经功能缺损.急诊医生提供标准的临床护理,包括直接检眼镜,在他们的自由裁量权。这些患者的视网膜光学相干断层扫描图像是用机器人获得的,半自主光学相干层析成像系统。我们比较了急诊医生对光学相干断层扫描图像异常的检测与参考标准,结合眼科咨询诊断和视网膜专家光学相干断层扫描审查。
    结果:9名急诊医师回顾了38例患者72眼的光学相干断层扫描图像。根据参考标准,33只(46%)眼正常,16人(22%)至少有1例紧急/紧急异常,其余23例(32%)有至少1例非紧急异常.急诊医生光学相干断层扫描的解释有69%(95%置信区间[CI],49%至89%)对任何异常的敏感度,对紧急/紧急异常的100%(95%CI,79%至100%)敏感性,对非紧急异常的敏感性为48%(95%CI,28%至68%),总体特异性为64%(95%CI,44%至84%)。相比之下,提供标准临床护理的急诊医师在直接检眼镜检查中未发现任何异常.
    结论:机器人,半自主光学相干断层扫描可对具有广泛后眼部异常的急诊科患者进行眼部成像。此外,急诊提供者光学相干断层扫描对任何异常的解释比直接检眼镜更敏感,紧急/紧急异常,和非紧急异常在这项试点研究中,小样本的患者和急诊医生。
    To evaluate the diagnostic performance of emergency physicians\' interpretation of robotically acquired retinal optical coherence tomography images for detecting posterior eye abnormalities in patients seen in the emergency department (ED).
    Adult patients presenting to Duke University Hospital emergency department from November 2020 through October 2021 with acute visual changes, headache, or focal neurologic deficit(s) who received an ophthalmology consultation were enrolled in this pilot study. Emergency physicians provided standard clinical care, including direct ophthalmoscopy, at their discretion. Retinal optical coherence tomography images of these patients were obtained with a robotic, semi-autonomous optical coherence tomography system. We compared the detection of abnormalities in optical coherence tomography images by emergency physicians with a reference standard, a combination of ophthalmology consultation diagnosis and retina specialist optical coherence tomography review.
    Nine emergency physicians reviewed the optical coherence tomography images of 72 eyes from 38 patients. Based on the reference standard, 33 (46%) eyes were normal, 16 (22%) had at least 1 urgent/emergency abnormality, and the remaining 23 (32%) had at least 1 nonurgent abnormality. Emergency physicians\' optical coherence tomography interpretation had 69% (95% confidence interval [CI], 49% to 89%) sensitivity for any abnormality, 100% (95% CI, 79% to 100%) sensitivity for urgent/emergency abnormalities, 48% (95% CI, 28% to 68%) sensitivity for nonurgent abnormalities, and 64% (95% CI, 44% to 84%) overall specificity. In contrast, emergency physicians providing standard clinical care did not detect any abnormality with direct ophthalmoscopy.
    Robotic, semi-autonomous optical coherence tomography enabled ocular imaging of emergency department patients with a broad range of posterior eye abnormalities. In addition, emergency provider optical coherence tomography interpretation was more sensitive than direct ophthalmoscopy for any abnormalities, urgent/emergency abnormalities, and nonurgent abnormalities in this pilot study with a small sample of patients and emergency physicians.
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