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Diagnostic accuracy of MRI and ultrasound in chronic immune-mediated neuropathies.

MRI和超声对慢性免疫介导的神经病变的诊断准确性。

  • 影响因子:3.85
  • DOI:10.1212/WNL.0000000000008697
  • 作者列表:"Oudeman J","Eftimov F","Strijkers GJ","Schneiders JJ","Roosendaal SD","Engbersen MP","Froeling M","Goedee HS","van Doorn PA","Caan MWA","van Schaik IN","Maas M","Nederveen AJ","de Visser M","Verhamme C
  • 发表时间:2020-01-07
Abstract

OBJECTIVE:To assess and compare the diagnostic performance of qualitative and (semi-)quantitative MRI and ultrasound for distinguishing chronic inflammatory demyelinating polyneuropathy (CIDP) and multifocal motor neuropathy (MMN) from segmental spinal muscular atrophy (sSMA). METHODS:Patients with CIDP (n = 13), MMN (n = 10), or sSMA (n = 12) and healthy volunteers (n = 30) were included. MRI of the brachial plexus, using short tau inversion recovery (STIR), nerve-specific T2-weighted (magnetic resonance neurography [MRN]), and diffusion tensor imaging (DTI) sequences, was evaluated. Furthermore, with ultrasound, cross-sectional areas of the nerves were evaluated. Three radiologists blinded for diagnosis qualitatively scored hypertrophy and increased signal intensity (STIR and MRN), and intraobserver and interobserver agreement was assessed. For the (semi-)quantitative modalities, group differences and receiver operator characteristics were calculated. RESULTS:Hypertrophy and increased signal intensity were found in all groups including healthy controls. Intraobserver and interobserver agreements varied considerably (intraclass correlation coefficients 0.00-0.811 and 0.101-0.491, respectively). DTI showed significant differences (p < 0.05) among CIDP, MMN, sSMA, and controls for fractional anisotropy, axial diffusivity, and radial diffusivity in the brachial plexus. Ultrasound showed significant differences in cross-sectional area (p < 0.05) among CIDP, MMN, and sSMA in upper arm and brachial plexus. For distinguishing immune-mediated neuropathies (CIDP and MMN) from sSMA, ultrasound yielded the highest area under the curve (0.870). CONCLUSION:Qualitative assessment of hypertrophy and signal hyperintensity on STIR or MRN is of limited value. DTI measures may discriminate among CIDP, MMN, and sSMA. Currently, ultrasound may be the most appropriate diagnostic imaging aid in the clinical setting.

摘要

目的: 评估和比较定性和半定量MRI与超声对慢性炎症性脱髓鞘性多发性神经病 (CIDP) 和多灶性运动神经病 (MMN) 的诊断价值。来自节段性脊肌萎缩 (sSMA)。 方法: 纳入CIDP患者 (n = 13) 、MMN (n = 10) 或sSMA患者 (n = 12) 和健康志愿者 (n = 30)。使用短tau反转恢复 (STIR) 、神经特异性T2-weighted (磁共振神经成像 [MRN]) 和弥散张量成像 (DTI) 序列评价臂丛神经的MRI。此外,用超声评价神经的横截面积。3 名诊断盲的放射科医生对肥大和信号强度增加 (STIR和MRN) 进行定性评分,并评估观察者内和观察者间的一致性。对于 (半) 定量模式,计算组差异和接受者操作者特征。 结果: 包括健康对照组在内的所有组均有肥大和信号强度增加。观察者内和观察者间一致性差异很大 (组内相关系数分别为 0.00-0.811 和 0.101-0.491)。DTI显示CIDP、MMN、sSMA和对照组之间臂丛神经的各向异性分数、轴向扩散系数和径向扩散系数有显著差异 (p <0.05)。超声显示上臂和臂丛CIDP、MMN和sSMA的横截面积差异有统计学意义 (p <0.05)。为了区分免疫介导的神经病变 (CIDP和MMN) 和sSMA,超声产生的曲线下面积最高 (0.870)。 结论: STIR或MRN上肥大和信号高信号的定性评估价值有限。DTI测量可区分CIDP、MMN和sSMA。目前,超声可能是临床环境中最合适的诊断成像辅助工具。

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影响因子:1.52
发表时间:2020-04-02
DOI:10.1080/09273948.2019.1597896
作者列表:["Apivatthakakul A","Kunavisarut P","Rothova A","Pathanapitoon K"]

METHODS::Purpose: To report on ocular Vogt-Koyanagi-Harada (VKH)-like syndrome under vemurafenib treatment for metastatic melanoma.Design: A case report.Method: Description of clinical and imaging manifestations including fundus photography, fluorescein, and indocyanine green angiography.Results: A 46-year-old Thai female was diagnosed with metastatic melanoma of the skin and had been treated with multiple surgical excisions, radiotherapy, and vemurafenib (initial dose 480 mg orally twice daily, subsequently increased to maximum dose of 960 mg twice daily). After 6 months of vemurafenib use, she complained of bilateral redness and photophobia and was diagnosed with bilateral anterior uveitis, which was topically treated. Two weeks later, her visual acuity (VA) sharply deteriorated to 20/80 and counting fingers. Ocular examination at that stage stronly resembled acute VKH disease. She exhibited intraocular inflammation, and her fundus examination revealed bilateral optic disc swelling and serous retinal detachment. Fluorescein angiogram showed disc leakage and multiple pinpoint hyperfluorescence leakage spots and indocyanine green demonstrated multiple hypofluorescent spots. Oral prednisolone 30 mg/day was commenced while vemurafenib medication was ceased. Three weeks later, her vision improved, and serous retinal detachment subsided. However, her cutaneous melanoma recurred.Conclusions: Vemurafenib, a potential adjunct treatment for metastatic melanoma, was complicated by the development of panuveitis, papillitis, and multiple serous detachments. These ocular symptoms were similar to the presentation of acute VKH syndrome.

翻译标题与摘要 下载文献
影响因子:2.19
发表时间:2020-01-01
DOI:10.1111/dmcn.14268
作者列表:["Crow YJ","Shetty J","Livingston JH"]

METHODS::Comprehensive reviews of the clinical characteristics and pathogenesis of Aicardi-Goutières syndrome (AGS), particularly its contextualization within a putative type I interferonopathy framework, already exist. However, recent reports of attempts at treatment suggest that an assessment of the field from a therapeutic perspective is warranted at this time. Here, we briefly summarize the neurological phenotypes associated with mutations in the seven genes so far associated with AGS, rehearse current knowledge of the pathology as it relates to possible treatment approaches, critically appraise the potential utility of therapies, and discuss the challenges in assessing clinical efficacy. WHAT THIS PAPER ADDS: Progress in understanding AGS disease pathogenesis has led to the first attempts at targeted treatment. Further rational therapies are expected to become available in the short- to medium-term.

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翻译标题与摘要 下载文献
影响因子:1.52
发表时间:2020-04-02
DOI:10.1080/09273948.2019.1603312
作者列表:["Takayama K","Obata H","Takeuchi M"]

METHODS::Purpose: To report the efficacy of adalimumab in a case of chronic Vogt-Koyanagi-Harada (VKH) disease refractory to conventional corticosteroids and immunosuppressive therapy and complicated by central serous chorioretinopathy (CSC).Case report: A 66-year-old woman diagnosed with VKH was treated with intravenous corticosteroids followed by oral corticosteroids and cyclosporine. However, systemic corticosteroids could not be tapered because of recurrent ocular inflammation and systemic complications (diabetes mellitus, moon face, bone weakness), while CSC appeared in both eyes. A diagnosis of chronic VKH resistant to medications complicated by corticosteroid-induced CSC was made. Systemic corticosteroids and cyclosporine were tapered and adalimumab initiated. Bilateral ocular inflammation and CSC were gradually reduced and visual acuity improved without any adverse effect. Twelve months after starting adalimumab monotherapy, no signs of active VKH and CSC were present.Conclusions: Adalimumab is one of the effective therapeutic options for refractory VKH disease complicated with corticosteroid-induced adverse effects.

神经系统自身免疫性疾病方向

神经系统自身免疫性疾病是以自身免疫细胞、免疫分子等攻击神经系统为主要致病机制的自身免疫性疾病。在免疫反应中,作用于神经系统自身抗原的致病抗体统称为神经系统自身抗体。

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