traumatic optic neuropathy

  • 文章类型: Journal Article
    引言外伤性视神经病变(TON),以间接TON为更普遍的形式,是严重视觉功能障碍的可怕原因。已知这种情况具有有争议的治疗计划和不良的视觉后遗症;因此,预后体征的评估变得有价值.前瞻性研究评估外伤性视神经损伤后视力恢复的重要预测因子,尤其有助于纵向观察。需要评估临床变量的可能作用。据报道,缺乏视觉诱发电位(VEP)记录是与TON相关的重要发现,具有有价值的预后意义。这也需要探索。因此,该研究试图确定预测因子在患者视觉结果中的作用,重点评估VEP在间接TON的严重程度和预后中的作用。方法对40例间接TON患者进行前瞻性观察研究。眼部,神经眼科,放射学,和神经生理变量,包括闪存VEP,在初次访问时进行了调查,并进行了随访,直到六个月结束。最终视力是研究的主要结果变量。使用配对t检验对初次就诊时正常眼和受影响眼的闪光VEP变量进行比较。计算皮尔逊相关系数以获得初始视力和闪光VEP变量与结果变量的关联。在单变量分析中计算并分析了预测因子的相对风险。统计学显著性定义为p<0.05。结果平均P100潜伏期有统计学意义的变化,获得了在初次就诊时患者的正常和受影响的眼睛之间的N75-P100和P100-N145振幅比较(p<0.0001;配对t检验)。初始视力和闪光VEP变量作为自变量,最终视力作为因变量的Pearson相关系数具有统计学意义(p<0.05)。具有统计学意义的置信区间范围的预测者的相对风险是初始视力差,较大的相对传入瞳孔缺损(RAPD)等级,无序的闪存VEP变量(没有VEP,振幅比降低(>50%),和增加的眼间潜伏期差异),受伤时失去意识,年龄大于40岁,和缺乏改善后48小时的类固醇治疗。结论确定的阴性预后可能有助于确定间接TON患者的治疗方法和预测视力结果。
    Introduction Traumatic optic neuropathy (TON), with indirect TON as its more prevalent form, is a dreadful cause of severe visual dysfunctions. The condition is known to have a contentious treatment plan and poor visual sequelae; hence, the assessment of prognostic signs becomes valuable. Prospective studies evaluating important predictors of visual recovery after traumatic optic nerve injury can particularly be helpful in a longitudinal observation. The possible roles of clinical variables need to be assessed. Absent visual evoked potential (VEP) records as a crucial finding associated with TON has reportedly valuable prognostic significance. This also needs to be explored. Hence, the study sought to determine the role of prognosticators in the visual outcome of the patients, with a focus on evaluating the role of VEPs in the severity and prognosis of indirect TON. Methods A prospective observational study involving 40 patients with indirect TON was conducted. Ocular, neuro-ophthalmological, radiological, and neurophysiological variables, including flash VEP, were investigated at their initial visit and followed up until the end of six months. Final visual acuity was the primary outcome variable studied. Paired t-test was used to perform the comparison between the flash VEP variables for normal and affected eyes at the initial visit. Pearson correlation coefficient was computed for obtaining the association of initial visual acuity and flash VEP variables with the outcome variable. Relative risk was calculated and analysed for the prognosticators in univariate analysis. Statistical significance was defined as p < 0.05. Results Statistically significant variations in mean P100 latency, N75-P100, and P100-N145 amplitudes compared between normal and affected eyes in the patients at the initial visit were obtained (p < 0.0001; paired t-test). Pearson correlation coefficient for initial visual acuity and flash VEP variable as independent variables and final visual acuity as the dependent variable were statistically significant (p < 0.05). The relative risks for prognosticators with a statistically significant range of confidence intervals were poor initial visual acuity, greater relative afferent pupillary defect (RAPD) grades, deranged flash VEP variables (absent VEP, reduction in amplitude ratio (>50%), and increased interocular latency differences), loss of consciousness during injury, age greater than 40 years, and lack of improvement after 48 hours of steroid treatment. Conclusion The identified negative prognosticators may be helpful in deciding the kind of therapeutic approach and predicting the visual outcome in patients with indirect TON.
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  • 文章类型: Journal Article
    未经证实:我们的研究旨在评估静脉内促红细胞生成素(EPO)在间接外伤性视神经病变(TON)患者中的有效性,评估副作用,并比较三组接受不同治疗方案的患者的视功能结果-EPO,类固醇,和观察。
    UNASSIGNED::从2019年8月至2020年3月到神经眼科诊所就诊的间接TON患者被分为三组,每组6名患者。在第1组中,前瞻性招募患者并接受重组人促红细胞生成素,然而,在第2组和第3组中,回顾性招募患者,并接受静脉注射甲基强的松龙,然后口服类固醇和多种维生素,分别。第1组和第2组包括创伤后2周内出现的患者,而第3组包括那些除此之外的人。最佳矫正视力,瞳孔反应,色觉,并测量治疗后的视野。
    未经证实:EPO组的初始视力范围为20/80至无光感知(无PL)。平均初始BCVA(1.82logMAR,标准偏差[SD]=0.847)改善至1.32,SD=0.93logMAR治疗后在第三个月记录(P=0.0375),无明显不良反应。第2组的初始BCVA范围为20/120至无PL。平均初始BCVA(1.95,SD=0.77logMAR)提高到1.45logMAR,治疗后SD=0.97(P=0.0435),但3例患者有类固醇副作用。第3组的初始视力范围为20/40至无PL。平均初始BCVA(1.09logMAR,SD=1.10)恶化到1.19logMAR,治疗后SD=1.06(P=0.0193)。三组之间比较,BCVA的改善并不显著。
    未经批准:促红细胞生成素和类固醇在治疗外伤性视神经病变方面均有效。然而,与类固醇相比,促红细胞生成素的副作用较小或没有副作用。
    Our study aims to evaluate the effectiveness of intravenous erythropoietin (EPO) in patients with indirect traumatic optic neuropathy (TON), assess the side effects, and compare the visual function results among three groups of patients who had received different treatment options - EPO, steroids, and observation.
    : Patients with indirect TON presenting to the neuro-ophthalmology clinic from August 2019 to March 2020, were assigned to three groups, with six patients in each group. In group 1, patients were recruited prospectively and received recombinant human erythropoietin, whereas, in groups 2 and 3, patients were recruited retrospectively and received intravenous methylprednisolone followed by oral steroids and multivitamins, respectively. Groups 1 and 2 included patients presenting within 2 weeks of trauma, whereas group 3 included those presenting beyond that. Best-corrected visual acuity, pupillary reaction, color vision, and visual fields following treatment were measured.
    Initial visual acuity in the EPO group ranged from 20/80 to no perception of light (No PL). The mean initial BCVA (1.82 logMAR, standard deviation [SD] = 0.847) improved to 1.32, SD = 0.93 logMAR after treatment recorded at the third month (P = 0.0375), with no significant adverse effects. The initial BCVA of group 2 ranged from 20/120 to No PL. The mean initial BCVA (1.95, SD = 0.77 logMAR) improved to 1.45 logMAR, SD = 0.97 after treatment (P = 0.0435) but three patients had side effects of steroids. Initial visual acuity in Group 3 ranged from 20/40 to no PL. The mean initial BCVA (1.09 logMAR, SD = 1.10) worsened to 1.19 logMAR, SD = 1.06 after treatment after treatment (P = 0.0193). The improvement in BCVA when compared between the three groups was not significant.
    Both erythropoietin and steroids are effective in the management of traumatic optic neuropathy. However, erythropoietin shows lesser or no side effects when compared to steroids.
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  • 文章类型: Journal Article
    目的:本研究的目的是评估虚拟计划和手术引导夹具的有效性,以改善单侧眶壁骨折的切开复位内固定手术效果,恢复和矫正眶容积(OV)。
    方法:对15例单侧眼眶骨折患者进行眼科和影像学检查。在计算机断层扫描中将轨道分为三个区域以定位缺陷。将骨折编码为FxMxRxLx(F=轨道地板,M=中间墙,L=侧壁,R=轨道屋顶)基于图案和所涉及的特定墙。1毫米的切片被用来制作立体光刻模型,设计定制的手术夹具术中使用作为指导。
    结果:术前和术后眼科参数,OV,与作为参考的对侧正常轨道进行比较。术后眼科参数显示视力方面的显著改善,眼球内陷,反乌托邦,和外伤性视神经病变.OV变化集中在2区和3区。OV显示术后充分恢复。
    结论:手术夹具是改善切开复位内固定手术效果的有效指南。预先计划的术中定位有助于实现充分的解剖复位和固定,充分的OV重建有助于将虚拟手术计划有效转移到桌子上,从而改善了临床表现和功能恢复的手术效果。临床试验注册:印度临床试验注册中心(CTRI)注册号。:CTRI/2019/11/021929。
    OBJECTIVE: The aim of the study was to assess the efficacy of virtual planning and surgical guide jig to improve surgical outcomes of open reduction and internal fixation with restoration and correction of orbital volume (OV) in unilateral orbital wall fractures.
    METHODS: Fifteen patients with unilateral orbital fractures were assessed with ophthalmologic and radiographic parameters. The orbit was divided into three zones on computed tomography to localize defects. Fractures were coded into Fx Mx Rx Lx (F = Orbital Floor, M = Medial Wall, L = Lateral wall, R = Orbital Roof) based on pattern and specific wall involved. 1-mm sections were used to make stereolithographic models, design the custom fabricated surgical jig for intraoperative use as a guide.
    RESULTS: Pre- and postoperative ophthalmological parameters, OV, were compared with the contralateral normal orbit serving as the reference. Postoperative ophthalmological parameters showed significant improvement in terms of visual acuity, enophthalmos, dystopia, and traumatic optic neuropathy. OV changes were concentrated in Zones 2 and 3. OV showed adequate restoration postoperatively.
    CONCLUSIONS: The surgical jig served as an efficient guide to improve surgical outcomes of open reduction internal fixation. Preplanned intraoperative positioning helped achieve adequate anatomical reduction and fixation with an adequate reconstruction of OV aiding the effective transfer of virtual surgical plan on the table with improved surgical outcomes in clinical performance and functional restitution.Clinical trial registration: The Clinical Trials Registry of India (CTRI) Registration No.: CTRI/2019/11/021929.
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  • 文章类型: Case Reports
    The vision loss in the Traumatic Optic Neuropathy is the impact of deformational forces. This occurs due to direct or indirect injuries during trauma to skull. The use of high dose corticosteroids is the primary line of treatment in such injuries still remains a matter of debate. Traumatic Optic Neuropathy is yet an unexplored topic of study in Ayurveda. The Traumatic Optic Neuropathy can be correlated with Abhighatajanya Vataprakopaj Drishtinash. The treatment principles of Vataprakopaj Vyadhi are Snehan (massage), Swedan (sudation), Basti (enema) and Nasya (oleation through nasal route). A 50 year old male patient came to outpatient department suffered from motorcycle accident and had a forehead trauma followed by loss of vision in both eyes after 5 days and diagnosed as Traumatic Optic Neuropathy. An electrophysiological assessment showed absence of waveform in Visual Evoked Potential (VEP). According to Ayurveda patient was diagnosed primarily as Abhighatajanya Vataprakopaj Drishtinash and started to follow the protocol of Vataprakopaj Vyadhi. Patient received Ayurvedic formulations in morning, after meal and at night for 12 months and a course of Yapan Basti (medicated decoction enema) followed by Netratarpan (eye satiation), Nasya and Abhyanga (body and foot massage). Patient showed an improvement in the visual quality from no perception of light to perception of light and rays in right eye in 9 month. Patient had improvement in P100 latencies of right eye in VEP report and subjective improvement in quality of vision to perceive the images and objects. Application of Ayurvedic principles and Panchakarma therapy resulted in improvement of the case. An early management of Traumatic Optic Neuropathy with Ayurvedic treatment can have a significant impact on the clinical/visual outcome in terms of recovery in damaged optic nerve fibers.
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  • 文章类型: Journal Article
    目的:研究闭合性颅脑损伤患者的各种眼部表现,为了找到与神经受累程度的任何关联,并分析必要干预后的治疗结果。
    方法:印度东部三级转诊医院。
    方法:前瞻性观察性研究。
    方法:招募了2017年10月至2019年9月在我们门诊部就诊并从神经外科转诊进行眼科评估的闭合性头部损伤患者。所有符合纳入标准的患者均由经验丰富的眼科医生进行检查。神经外科小组采用格拉斯哥昏迷量表(GCS)对神经系统受累进行分级。记录眼部发现,并要求进行必要的成像。对有神经系统检查结果的患者进行了适当的神经外科咨询。所有眼外伤均按照机构方案进行管理。描述性统计用于分析,p<0.05为统计学上显著的。
    结果:共207例患者(414只眼)纳入研究。平均年龄为33.82岁,男性患者患病率(82.12%)。颅脑损伤最常见的原因是RTA(57.01%),其次是攻击(11.59%)。大多数患者(53.14%)被归类为中度,46.37%的患者为轻度,根据GCS评分,0.48%患有严重的神经系统受累。在70.04%的患者中观察到孤立的眼部表现,而29.95%的患者同时具有神经系统和眼科特征。观察到38.6%的眼附件受累,86%的眼前节受累,33.3%的神经眼科表现,38.6%的患者受累后节段。48.8%的患者在适当的时间内眼部体征得到缓解,完全解决28%,而6.28%的患者没有改善。51.69%的患者最终获得>6/18的最佳矫正视力。GCS评分与一般眼部发现(p=0.02)以及相对传入瞳孔缺损(p=0.003)之间的相关性具有统计学意义。年龄>50岁与神经眼科特征之间的关联未发现有统计学意义(p=0.56)。
    结论:演示时视力不佳,视神经管骨折,眼眶壁多处骨折的存在,开始静脉注射皮质类固醇48小时内视力无改善,是这项研究中视力预后不良的指标。GCS,神经缺陷,和眼部体征对结果的预测有重要贡献。及时治疗和转诊可以很好地解决症状和体征。
    OBJECTIVE: To study the various ocular findings in patients with closed head injuries, to find any association with the degree of neurological involvement, and to analyze the treatment outcome after the necessary intervention.
    METHODS: Tertiary referral hospital in Eastern India.
    METHODS:  Prospective observational study.
    METHODS: Patients with closed head injuries attending our Outpatient department as well as referred from the Neurosurgery department for ophthalmic evaluation between October 2017 and September 2019 were recruited for the study. All patients meeting the inclusion criteria were examined by an experienced ophthalmologist. The Glasgow coma scale (GCS) was applied to grade the neurological involvement by the neurosurgery team. Ocular findings were recorded and necessary imaging was requested. Appropriate neurosurgery consultations were done in patients with neurological findings. All ocular injuries were managed as per institutional protocol. Descriptive statistics were used for analysis with p< 0.05 taken as statistically significant.
    RESULTS: A total of 207 patients (414 eyes) were included in the study. The mean age was 33.82 years, with the prevalence of male patients (82.12%). The most common cause of head injury was RTA (57.01%) followed by assault (11.59%). The majority of patients (53.14%) were classified as having moderate, 46.37% patients with mild, and 0.48% with severe neurological involvement as per GCS scoring. Isolated ocular findings were seen in 70.04% of patients while 29.95% of patients had both neurological and ophthalmic features. Ocular adnexal involvement was observed in 38.6%, anterior segment involvement in 86%, neuro-ophthalmic manifestations in 33.3%, and posterior segment involvement in 38.6% of patients. Ocular signs were resolved over due course of time in 48.8% of patients, completely resolved in 28%, while there was no improvement in 6.28% of patients. The final best-corrected visual acuity of >6/18 was achieved in 51.69% of patients. Statistical significance was observed in the correlation between the GCS scoring and general ocular findings (p= 0.02) as well as a relative afferent pupillary defect (p=0.003). The association between age > 50 years and neuro-ophthalmic features was not found to be statistically significant (p=0.56).
    CONCLUSIONS: Poor visual acuity at presentation, optic canal fractures, the presence of multiple fractures of orbital walls, no improvement in vision within 48 hours of starting intravenous corticosteroids, were indicators of a poor visual prognosis in this study. The GCS, neuro-deficit, and ocular signs contribute significantly to the prediction of outcomes. Prompt treatment and referral can lead to a good resolution of symptoms and signs.
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  • 文章类型: Journal Article
    背景:研究的目的是评估眶壁骨折的相关模式,创伤性视神经病变的诊断参数及其与大剂量类固醇治疗的进展。
    方法:对25例单侧眶壁外伤性骨折患者进行了眼科和影像学评估。所有患者均接受大剂量静脉类固醇治疗,无论就诊时间如何。每隔一天重复进行相同参数的眼科评估,直至2周。
    结果:发现眶外侧壁最常见。视敏度,瞳孔反应性,在早期和晚期演示者中,类固醇治疗后的视野和视觉诱发电位显示出统计学上的显着改善。
    结论:在多个线性眶壁骨折中,创伤性视神经病变的发生率最高,其中眶外侧壁受累的发生率最高。关于基于出现时机的类固醇的选择和开始时机的文献不足以证明跳过类固醇来观察或进行手术干预。在本研究中,无论出现时间如何,类固醇治疗后都有显着改善。作者得出的结论是,应客观地测试视觉诱发电位,并应对所有外伤性视神经病变患者开始大剂量类固醇治疗,以使患者受益最大。
    BACKGROUND: The aim of the study was to evaluate the associated patterns of orbital wall fractures, diagnostic parameters of Traumatic optic neuropathy and its progress with Mega dose steroid therapy.
    METHODS: 25 patients with unilateral orbital wall fractures of traumatic aetiology were evaluated with ophthalmologic and radiographic parameters. All patients were prescribed Mega Dose Intravenous steroids irrespective of the timing of presentation. Ophthalmic assessment was repeated for same parameters every alternate day upto 2 weeks.
    RESULTS: Lateral orbital wall was found to be most commonly involved. Visual acuity, Pupillary Reactivity, Visual Field and Visual Evoked Potential showed statistically significant improvement post steroid therapy in early as well as late presenters.
    CONCLUSIONS: Highest incidence of Traumatic optic neuropathy was noted in multiple linear orbital wall fractures with highest incidence with lateral orbital wall involvement. Literature regarding Choice and timing of initiation of steroids based on timing of presentation is inadequate to justify skipping steroids to observe or undertake surgical intervention. In the present study marked improvement was noted post steroid therapy regardless of timing of presentation. The authors conclude that Visual evoked potential should be objectively tested and Mega dose steroid therapy should be initiated for all patients with Traumatic optic neuropathy for maximum benefit to the patient.
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  • 文章类型: Journal Article
    OBJECTIVE: This study was aimed to investigate the safety and feasibility of umbilical cord-derived mesenchymal stem cell (MSC) transplantation in patients with traumatic optic neuropathy (TON).
    METHODS: This is a single-center, prospective, open-labeled phase 1 study that enrolled 20 patients with TON. Patients consecutively underwent either optic canal decompression combined with MSC local implantation treatment (group 1) or only optic canal decompression (group 2). Patients were evaluated on the first day, seventh day, first month, third month, and sixth month postoperatively. Adverse events, such as fever, urticarial lesions, nasal infection, and death, were recorded at each visit. The primary outcome was changes in best-corrected visual acuity. The secondary outcomes were changes in color vision, relative afferent pupillary defect, and flash visual evoked potential.
    RESULTS: All 20 patients completed the 6-month follow-up. None of them had any systemic or ocular complications. The change in best-corrected visual acuity at follow-up was not significantly different between group 1 and group 2 (p > 0.05); however, group 1 showed better visual outcome than group 2. Both groups showed significant improvements in vision compared with the baseline (p < 0.05); however, there were no statistically significant differences between the groups (p > 0.05). In addition, no adverse events related to local transplantation were observed in the patients.
    CONCLUSIONS: A single, local MSC transplantation in the optic nerve is safe for patients with TON.
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