Thyroid:Graves眼病患者使用前列腺素F2-α滴眼液(比马前列素)

2021-09-23 从医路漫漫 MedSci原创

先前的体外研究表明,PGF2α抑制了小鼠细胞系和非活动期Graves眼病(GO)患者的眼眶成纤维细胞的增殖和脂肪生成。

背景:先前的体外研究表明,PGF2α抑制了小鼠细胞系和非活动期Graves眼病(GO)患者的眼眶成纤维细胞的增殖和脂肪生成。本研究的目的是确定前列腺素F2α类似物比马前列素是否能有效降低该人群的眼眶突出。

方法:在一个三级医疗学术中心进行随机对照、双盲交叉试验。入选的患者长期处于非活动性GO状态,但有持续性眼球突出(至少有一只眼>20 mm)。考虑到15%的脱落率,将31名患者(26名女性)随机分组,以确定2.0 mm的治疗效果(p=0.05,双侧配对t检验,幂0.88)。知情同意后,参与者随机接受比马前列素或安慰剂治疗三个月,之后他们接受了为期两个月的随访,然后切换到相反的治疗。主要结果是在3个月的治疗期间记录双眼眼球突出度的变化。

结果:基线眼球突出度平均值为23.6(20.0~30.5)mm,平均年龄55岁(28~74岁)。GO持续时间的中位数为7.6(IQR 3.6~12.3)年。大多数人仍患有复视(61.3%),双眼受累(61.3%)。调整了基线、周期和结转的多水平模型发现,比马前列素导致眼球突出度变化-0.17 mm(降低)(95%CI-0.67to+0.32),p=0.490。眼压下降-2.7mmHg(95%可信区间-4.0至-1.4,p=0.0070)。1例在治疗过程中出现眶周脂肪萎缩(PAP),停药后消失。通过摄影图像对突眼进行独立分析(所有受试者)和对单眼进行亚组分析(n=12)没有显示出任何明显的益处。

图1 安慰剂和比马前列素的凸度测量平均变化的点图,以毫米为单位。测量的平均变化是通过从随后的治疗中减去测量的基线来计算。因此,负值表1:研究人群的基线人口统计数据。

数据以均值(标准差或范围)表示,除非另有说明或百分比(患者数量/总数)表示治疗有所改善。++表示平均值,--表示标准差。配对t检验p值=0.8455。

图2 以眼球突出度(LC)为参照点,从外侧眼角(LC)或鼻桥(NB)到角膜顶点(CA)的标准视角放大200%后进行眼球突出度测量。从LC绘制一条水平线,并垂直于与CA相交的水平线绘制一条垂直线。

然后在屏幕上测量LC到CA测量的距离(从LC到交叉截面点的左右虚线箭头)(图A)。以LC作为参照点,对NB到CA的测量进行类似的测量(图B)。

图3 临床凸眼仪对外眼角至角膜顶点测量的散点图与拟合值(蓝线)显示Spearman值为0.609,p<0.0001。

图4 临床突出眼计对鼻桥和角膜尖端测量的散点图与拟合值(蓝线)显示Spearman -0.396和p<0.0001呈负相关。

图5 下眼睑眶周脂肪萎缩1例。应用比马前列素3个月后,双眼眼压下降3mmHg,右眼眼球突出计下降2mm,左眼下降1mm。然后在2个月的随访后恢复到基线水平。

A:基线,B:比马前列素3个月疗程后双侧下睑脂肪萎缩(红色箭头),C:洗脱期后2个月,D:安慰剂组3个月。E、结束试访。

结论:在非活动性GO中,比马前列素治疗3个月以上并不能改善眼球突出。

原文出处

 Draman MS,  Morris DS,  Evans S,et al,Prostaglandin F2-Alpha Eye Drops (Bimatoprost) in Graves' Orbitopathy: A Randomized Controlled Double-Masked Crossover Trial (BIMA Trial).Thyroid 2019 04;29(4)

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    2022-06-28 xsm928
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    2021-09-24 pps20023