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European Radiology:在接受NAC的乳腺癌患者中,测量这一影像学指标可预测化疗相关脂肪性肝炎!

2022-08-15 shaosai MedSci原创

对于接受心脏毒性化疗药物(如蒽环类、环磷酰胺和曲妥珠单抗)的BC患者来说,其心血管疾病(CVD)的发病率明显增加。

据统计乳腺癌(BC)在全世界范围内发病率最高的女性癌症。新辅助化疗(NAC)已被确立为大多数BC的标准治疗方法,能够降期、检测药物敏感性和提高保乳治疗的可能性。随着NAC的广泛应用,化疗药物引起的肝脏毒性和心脏毒性得到了临床医生的更多关注。

许多化疗药物引起脂肪性肝炎的能力已变得更加明显,并形成了化疗相关脂肪性肝炎(CASH)。CASH的特点是肝细胞内脂质堆积的典型病理模型,常常伴随着氧化应激和炎症的存在。尽管CASH被认为是可逆的,但在化疗后会持续存在很长时间。因此,识别CASH并在治疗期间加强监测十分必要

对于接受心脏毒性化疗药物(如蒽环类、环磷酰胺和曲妥珠单抗)的BC患者来说,其心血管疾病(CVD)的发病率明显增加。心外膜脂肪组织(EAT)体积的改变与冠状动脉斑块的发展和心肌缺血、冠状动脉钙质增加以及心血管不良事件的发生率增加有关。事实证明,EAT比冠状动脉钙化评分具有更高的预后价值。据我们所知,尚未有报道在BC患者中评估接受NAC后EAT容积的变化模式。

近日,发表在European Radiology杂志的一项研究通过MRI mDIXON-Quant检查对肝脏脂肪含量进行量化以确定CASH的患病率,并通过半自动容积分析软件测量胸部CT的EAT容积以探索BC患者接受NAC后的变化模式,为无创评估肝脏脂肪含量及CASH的进展提供了影像学支持。

本研究从2018年10月到2020年4月对纳入患者进行了回顾,并将其分为乳腺癌非NAC和NAC组。通过定量MRI mDIXON-Quant检查,使用定义的肝脏脂肪质子密度脂肪分数截断值评估化疗相关脂肪性肝炎的患病率。通过半自动体积分析软件对胸部CT的EAT体积进行了量化。在乳腺癌NAC组中使用了Bootstrap分析,以检验肝脏脂肪含量对EAT体积介导作用的意义。 

共纳入662名乳腺癌患者(非NAC组:445人;NAC组:217人)。NAC组的化疗相关脂肪性肝炎的发病率明显高于非NAC组的肝脂肪变性的发病率(42.8% vs. 33.3%,P < 0.001)。662名乳腺癌患者中有561名测量了EAT体积,NAC组明显高于非NAC组(137.26 ± 53.48 mL vs. 125.14 ± 58.77 mL,P = 0.020)。在乳腺癌NAC组中,肝脏脂肪含量对EAT体积的间接影响为2.545(P < 0.001),对该影响的贡献率为69.1%。 


 用于计算通过第一条肝门静脉(a,PDFF=2.41%,2.03%和1.54%,分别)和第二条肝门静脉以下(b,PDFF=1.99%,2.42%和1.28%,分别)的横断面中肝脏PDFF值的样本ROI。PDFF,质子密度脂肪分数;ROI,感兴趣区域

 

本研究发现,在接受NAC的BC患者中,CASH的患病率为42.8%,且EAT体积显著增加。

 

原文出处:

Xiaoxia Wang,Yuchuan Tan,Daihong Liu,et al.Chemotherapy-associated steatohepatitis was concomitant with epicardial adipose tissue volume increasing in breast cancer patients who received neoadjuvant chemotherapy.DOI:10.1007/s00330-022-08581-1.

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    2022-08-21 qjddjq
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天津国际乳腺癌大会

主办单位:中国抗癌协会、天津抗癌协会

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