IBD: 肠道超声评估肠道行为可以预测克罗恩病患者对抗TNF治疗的早期反应

2022-01-13 MedSci原创 MedSci原创

克罗恩病是一种消化道的慢性、反复发作和非特异性的透壁性炎症, 病变呈节段性分布, 可累及消化道任何部位,其中以末端回肠最为常见,结肠和肛门病变也较多。

抗肿瘤坏死因子(TNF)-α药物(如英夫利昔单抗)被广泛用于治疗CD患者,特别适用于频繁复发、严重疾病活动期和预后不良的患者。然而,高达40%的患者对抗TNF-α药物没有反应,大约10%的患者有药物不良反应,从而影响治疗。因此,在 "严格控制 "和 "对症下药 "策略的时代,预测和监测抗TNF-α治疗的反应至关重要。有一些研究结果表明C反应蛋白、粪钙卫蛋白、黏膜变化和横断面成像评估的透壁损伤与接受抗肿瘤药物的CD患者的治疗结果有关。内镜检查是评估CD患者在接受抗肿瘤药物治疗3-6个月内疗效的金标准。鉴于在短期随访中频繁进行内窥镜评估因其侵入性而无法实施,因此,临床上需要另一种客观的、容易重复的、但无创的评估方法。

作为CD的一种横断面成像方式,肠道超声已被推荐使用,并已被广泛用于评估CD肠道的变化。以前的研究已经证明,剪切波弹性成像(SWE)是一种可行的、准确的超声弹性成像方式,可对CD患者的肠道纤维化进行无创性量化分析。据报道,纤维化的程度会影响抗肿瘤药物的治疗效果。因此,SWE可能有助于预测抗TNF治疗的早期反应,并可能成为肠道纤维化改善的一个指标。因此,本项研究旨在探究 (a) 通过超声接受抗 TNF 治疗的 CD 患者肠道行为发生的变化;(b) 剪切波弹性成像 (SWE) 在预测对抗 TNF 治疗的早期反应方面的可行性。

 

研究人员将存在回肠或回结肠CD并接受抗TNF治疗的患者纳入本项研究。研究人员对所有患者在基线和第 2、6 和 14 周进行肠道超声检查。使用线性混合模型比较肠壁厚度、肠壁多普勒信号(Limberg 评分)和 SWE 值的变化。主要观察指标是抗 TNF 治疗的早期反应以及基于第 14 周临床和结肠镜检查结果。

 

本研究纳入的 30 例患者中,有 20 例患者在第 14 周对抗 TNF 治疗产生反应。与无反应组相比,反应组的肠壁厚度和 SWE 值呈显着下降趋势(P =0.003)。与基线相比,响应组的肠壁厚度、Limberg 评分和 SWE 值早在第 2 周就显着降低(P <0.001)。无反应组的基线 SWE 值(21.3±8.7 vs. 15.3±4.7 kPa,P=0.022)和肠壁厚度(8.5±2.3 vs. 6.9±1.5 mm,P = 0.027)显着高于有反应组患者。

图:B超展示肠道病变情况

 

本项研究最后证实最早可以在开始抗 TNF 治疗后的第 2 周评估肠道超声行为的变化,可以通过肠道超声和弹性成像来预测抗 TNF 治疗的早期反应。

原始出处:

Yu-Jun Chen. Et al. Longitudinal Bowel Behavior Assessed by Bowel Ultrasound to Predict Early Response to Anti-TNF Therapy in Patients with Crohn's Disease: A Pilot Study. Inflammatory Bowel Diseases.2021.

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    2022-01-11 bnurmamat
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    2022-01-11 snowpeakxu

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克罗恩病:一种消化道的慢性、反复发作和非特异性的透壁性炎症, 病变呈节段性分布, 可累及消化道任何部位,其中以末端回肠最为常见,结肠和肛门病变也较多。

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克罗恩病是一种原因不明的肠道炎症性疾病,在胃肠道的任何部位均可发生,但多发于末端回肠和右半结肠。本病和慢性非特异性溃疡性结肠炎两者统称为炎症性肠病(IBD)。

Dig Dis Sci:术后 3 个月粪便钙卫蛋白水平低可预测克罗恩病的内镜术后长期缓解

谈到克罗恩病 对于没有学过医学的人们可能很难想到它会跟胃肠疾病联系在一起。 它是一种慢性炎性肉芽肿性疾病 多见于末端回肠和邻近结肠。

JCC: CXCR3配体可以作为克罗恩病患者术后复发的生物标志物

炎症性肠病是一种持续或反复发作的疾病,是起始于胃肠道黏膜的炎症。炎症可出现在消化道的任何部分,从口腔到肛门,例如直肠或小肠。

AP&T: 根据NUDT15基因分型的剂量优化策略可减少硫嘌呤治疗克罗恩病期间的白细胞减少症

克罗恩病是一种原因不明的肠道炎症性疾病,在胃肠道的任何部位均可发生,但多发于末端回肠和右半结肠。