Clin Gastroenterol H: 粪钙卫蛋白水平与儿童克罗恩病患者的肠粘膜愈合有关

2018-06-25 MedSci MedSci原创

肠道粘膜愈合是克罗恩病(CD)患者治疗的重要目标。虽然有许多关于粘膜愈合的研究,但在儿童中尚未对透壁愈合(即肠壁)进行研究。本项研究则对儿童CD的肠道粘膜,透壁愈合和钙卫蛋白和C反应蛋白水平之间的关系进行了分析。

背景和目的
肠道粘膜愈合是克罗恩病(CD)患者治疗的重要目标。虽然有许多关于粘膜愈合的研究,但在儿童中尚未对透壁愈合(即肠壁)进行研究。本项研究则对儿童CD的肠道粘膜,透壁愈合和钙卫蛋白和C反应蛋白水平之间的关系进行了分析。

方法
本项研究共纳入151名儿童(平均年龄为14.2±2.4岁),所有患者均接受核磁共振和回结肠镜检查; 并同时测量钙卫蛋白的粪便水平和C-反应蛋白的血清水平。粘膜愈合被定义为简单内镜严重度指数评分低于3,MRE视觉评分低于20mm的定义为透壁愈合。

结果
研究人员发现9名儿童(6%)实现粘膜愈合,38名儿童(25%)实现透壁愈合,21名儿童深度愈合(14%),83名儿童粘膜和透壁的炎症(55%)未能达到愈合标准 。深度愈合的儿童中,钙卫蛋白的中位数水平最低(平均水平为10μg/ g;四分位范围为10-190μg/ g),其次为儿童有透壁或粘膜炎症组,儿童粘膜和透壁炎症组。粪钙卫蛋白水平用于预测粘膜愈合的ROC曲线下面积为0.93(95%CI,0.89-0.98); C反应蛋白水平鉴定了深度愈合的儿童,ROC曲线下面积为0.81(95%CI,0.71-0.9)。 100μg/ g的钙卫蛋白临界值可以用于确定深度愈合,灵敏度为71%,特异性为92%;截断值为300μg/ g可以界定儿童的粘膜是否愈合,灵敏度为80%,特异性为81%。

结论
在这项前瞻性研究中,研究人员发现粪钙卫蛋白300μg/g可以作为粘膜愈合的判断标准,但需要较低的临界值(低于100微克/克)来鉴别深度愈合的儿童。

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    2018-07-15 许安
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    2019-01-14 guoyibin

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