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European Radiology:使用机器学习,预测Stanford B型主动脉夹层TEVAR术后的再干预风险

2022-02-14 shaosai MedSci原创

主动脉夹层是一种高度致命性疾病,每年的发病率为每10万人中有2至6人。目前,胸腔内主动脉修复术(TEVAR)是复杂的斯坦福B型主动脉夹层(TBAD)患者的首选疗法。

主动脉夹层是一种高度致命性疾病,每年的发病率为每10万人中有2至6人。目前,胸腔内主动脉修复术(TEVAR)复杂的斯坦福B型主动脉夹层(TBAD)患者的首选疗法。然而,TEVAR后的术后并发症发生率很高。再次介入的发生与术后并发症密切相关,增加了主动脉破裂的风险。

目前,虽然没有制定再介入的标准诊断和治疗指南,但对于TEVAR术后出现严重并发症的患者,进行再介入治疗已成为共识。术前CTA和术后即刻主动脉数字减影血管成像(DSA)的特点对于TEVAR后TBAD患者的治疗策略和随访具有重要意义。

然而,很少有研究将TEVAR前的CTA与TEVAR后的即刻DAS结果结合起来,以分流或预测患者进行再介入的风险。大量的数据需要机器学习来改善和加速心血管疾病的诊断、治疗和预后。这种方法提供了一套强大的工具来解开变量和结果之间的关系,使预测更加准确。

近日,发表在European Radiology杂志的一项研究根据临床、术前CTA和术后DSA的特征,开发并验证预测TBAD的TEVAR术后再次介入的分类模型临床医生成功预测再干预的风险进一步优化高风险患者的监测和治疗提供了可能

本研究共纳入192名接受TEVAR手术的TBAD患者;68人(35.4%)有接受再介入的指征。收集了临床特征、术前和术后CTA的主动脉特征,以及术后立即进行的DSA特征。应用最小绝对收缩和选择算子(LASSO)回归法来确定再次干预的风险因素。八个分类器被用于建模。这些模型在100个训练-验证的随机分片上训练,比例为2:1。通过受试者工作特征曲线来评估其性能。 

确定了七个再干预的预测因素,包括最大假腔直径、在左锁骨下动脉远端约15毫米处测量的主动脉直径、在膈肌水平测量的主动脉直径、在腹腔动脉水平测量的假腔直径、裸金属和覆盖支架的数量、裸金属支架的数量以及假腔的残余灌注。Logistic回归(LR)的性能最高,曲线下面积为0.802。一个为临床使用而建立的列线图显示出良好的校准。将患者分为低风险和高风险亚组的分界值为0.413。Kaplan-Meier曲线显示,高危患者的总生存期明显短于低危患者(均为P < 0.05)。 

 验证队列中分类器的受试者工作特征曲线。

项研究表明,在选择TBAD患者进行TEVAR和制定术后监测策略时,应综合考虑临床特征、CTA的特征和术后即刻DSA的特征。本研究开发并验证了一个用于预测TBAD患者在TEVAR术后再介入概率的列线图。该列线图可将患者分为低风险或高风险亚组,其中高风险患者的OS明显高于低风险患者。

 

原文出处

Yuhao Dong,Lifeng Que,Qianjun Jia,et al.Predicting reintervention after thoracic endovascular aortic repair of Stanford type B aortic dissection using machine learning.DOI:10.1007/s00330-021-07849-2.

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    2022-02-27 ms9000000823984796

    楼主你好,可以分享一下原文吗?谢谢

    0

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    2022-08-26 qindq
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