全球精选文摘 - 视神经脊髓炎的光学相干断层成像所见不同于多发性硬化

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视神经脊髓炎的光学相干断层成像所见不同于多发性硬化

Optical coherence tomography differs in neuromyelitis optica compared with multiple sclerosis

Naismith RT, Tutlam NT, Xu J 2009/12/22 17:19:50

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Neurology, 2009,

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Background:
Neuromyelitis optica (NMO) is associated with destructive inflammatory lesions, resulting in necrosis and axonal injury. Disability from multiple sclerosis (MS) is due to a combination of demyelination and varying axonal involvement. Optical coherence tomography (OCT), by measuring retinal nerve fiber layer (RNFL) as a surrogate of axonal injury, has potential to discriminate between these two conditions.

Methods:
Included were 22 subjects with NMO or NMO spectrum disorders and 47 with MS. Seventeen subjects with NMO and all with MS had a remote history of optic neuritis (ON) in at least one eye, at least 6 months before OCT. Linear mixed modeling was used to compare the two diagnoses for a given level of vision loss, while controlling for age, disease duration, and number of episodes of ON.

Results:
After ON, NMO was associated with a thinner mean RNFL compared to MS. This was found when controlling for visual acuity (56.7 vs 66.6μm, p=0.01) or for contrast sensitivity (61.2 vs 70.3μm, p=0.02). The superior and inferior quadrants were more severely affected in NMO than MS.

Conclusions:
Optic neuritis (ON) within neuromyelitis optica (NMO) is associated with a thinner overall average retinal nerve fiber layer compared to multiple sclerosis, with particular involvement of the superior and inferior quadrants. This suggests that NMO is associated with more widespread axonal injury in the affected optic nerves. Optical coherence tomography can help distinguish the etiology of these two causes of ON, and may be useful as a surrogate marker of axonal involvement in demyelinating disease.

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高血压	慢性阻塞性肺病
脂肪性肝病	糖尿病
卒中	肺癌
冠心病	子宫内膜异位症
结直肠癌	乳腺癌
心力衰竭	心律失常

病例分析 [栏目介绍]

甲状腺功能亢进合并黄疸

王燕燕王曙

上海交通大学附属瑞金医院内分泌科

患者，女，69岁。2009年1月无明显诱因下出现乏力，当时程度较轻，未予以重视。2009年3月患者乏力症状加重，尿色逐渐加深，大便习惯改变，颜色变淡。4月18日入我院感染科治疗，诉轻度头晕、心慌，体重减轻10kg。无肝区疼痛，无发热，无腹痛、腹泻、腹胀、里急后重，无恶性、呕吐等。入院半月前于外院就诊，查肝功能：ALT 601IU/L，AST 785IU/L，TBIL 97.7umol/L，白蛋白 41g/L，甲状腺功能：游离T3 30.6pmol/L，游离T4 51.9pmol/L，心电图示快速房颤。

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