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JCC: 早期肠道超声可以预测严重溃疡性结肠炎住院患者静脉注射皮质类固醇的反应

2022-07-10 xuyihan MedSci原创

肠道超声彩超还可以用于炎症性肠病的病情监测,对于炎症性肠病的患者,定期复查肠道的彩超可以较好地观察是否有肠壁增厚,以及肠道狭窄的情况,比肠镜更方便。

大约25%的溃疡性结肠炎 (UC) 患者在他们的一生中至少会患有一次急性重症溃疡性结肠炎(ASUC)。这种情况需要住院密切监测和静脉内注射(i.v.)皮质类固醇治疗。欧洲克罗恩病和结肠炎组织(ECCO) 和美国胃肠病学协会 (AGA) 指南推荐了一个3-5天后的反应评估的目标治疗方案。如果治疗反应不好,则有必要将治疗改为使用英夫利昔单抗 (IFX) 或环孢素的挽救治疗 (RT)。尽管有严格的监测和药物治疗的进步,ASUC 仍会导致25-30%的短期结肠切除率。因此,一个可靠的早期用于客观反应评估的床旁标记物可以有效筛选可能的无应答者。经腹肠道超声 (IUS) 检测活动性 UC 的诊断准确性已经得到了很好的证实,本项研究的目的是确定静脉注射皮质类固醇48小时内后经腹肠道超声的变化是否可以预测住院重症溃疡性结肠炎患者的治疗结果。

 

 

为此,研究人员进行了一项双盲法观察性多中心研究。在治疗开始前、48±24 小时后和 6±1天后评估UC患者的超声参数。治疗反应在 7 天内通过两种结果测量来确定:1) 部分 Mayo 评分降低,2) 不进行救援治疗。

 

 

研究结果显示在招募的69名患者中,有56名被纳入最终分析,其中有37名对类固醇治疗有响应。研究人员分析了具有最高基线肠壁厚度的结肠段,即所有患者的乙状结肠。在部分 Mayo 评分结果中,响应者和非响应者之间的基线肠壁厚度没有差异。在 48±24 小时,绝对肠壁厚度( 3.1 毫米VS 4.9 毫米;p<0.0001)、绝对减少(-1.9 毫米 VS  -0.2 毫米;p<0.001)方面发现有反应者和无反应者之间存在显着差异。对于确定无应答(曲线下面积 0.85),≤20%的肠壁厚度降低具有84.2%(95%CI 60.4, 96.6%)的敏感性和 78.4%(61.8, 90.2%)的特异性。在多变量分析中,> 20%的肠壁厚度减少具有最高的优势比 (22.6 (4.2, 201.2), p=0.001) 用于确定治疗响应程度。

 

 

本项研究证实重症溃疡性结肠炎住院患者静脉注射皮质类固醇治疗后48±24小时后肠壁厚度的变化可准确识别反应者,并可作为指导加速抢救治疗的早期标志物。

原始出处:

Johan F K F Ilvemark. Et al. Early intestinal ultrasound predicts intravenous corticosteroid response in hospitalized patients with severe ulcerative colitis. Journal of Crohn's and Colitis.2022.

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    2023-04-21 fusion
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    2023-01-25 nymo
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