Radiology:临门静脉或肝静脉主干的恶性肝肿瘤无法热消融怎么办?

2017-08-18 shaosai MedSci原创

射频消融治疗是一种肝癌微创治疗方法,借助于超声等影像技术引导将射频电极针直接插入肝肿瘤内,通过射频能量使病灶局部组织产生高温,最终使肿瘤凝固坏死和灭活。本研究旨在探究不可逆性电穿孔技术(IRE)在治疗非热消融(射频消融(RFA)或微波消融)的肝癌的效能和安全性,并将结果发表在Radiology上。

射频消融治疗是一种肝癌微创治疗方法,借助于超声等影像技术引导将射频电极针直接插入肝肿瘤内,通过射频能量使病灶局部组织产生高温,最终使肿瘤凝固坏死和灭活。本研究旨在探究不可逆性电穿孔技术(IRE)在治疗非热消融(射频消融(RFA)或微波消融)的肝癌的效能和安全性,并将结果发表在Radiology上。

本研究共前瞻性的纳入了29例共43处原发(n=8)或继发(n=35)的恶性肝肿瘤患者(男性15例,女性14例;平均年龄63±12岁),并行CT引导下IRE。对肝静脉、门静脉旁的所有肿瘤进行定位,由于位置原因这些肿瘤不适于RFA或微波消融。介入治疗后,对患者行CT和MRI扫描检查。平均24月后对患者进行MRI检查随访评估消融效果、肿瘤内复发情况和并发症。利用95%CI来表示胆管狭窄、不完全消融、和肿瘤复发发生率。

共有40/43处肿瘤(93%; 95% CI: 85, 100)消融效果完全,消融边界超过肿瘤边界5-10mm并经介入后CT和MRI证实。在13/40完全消融的肿瘤(33%; 95% CI: 18, 47)中术后2-18月发生了肿瘤内复发。然而,仅有2/13处肿瘤(15%; 95% CI: 0, 35)能够在消融范围内观察到。在另外的11处肿瘤(85%; 95% CI: 65, 100)中,肿瘤沿着穿刺针生长。两例局部复发的肿瘤均为见到复发累及血管。在随访中,所有肿瘤临近血管灌注良好。5/21例肿瘤近门静脉的患者在IRE术后2-6周发生了胆汁淤积。

本研究表明,IRE能有有效避免热库效应及不完全消融和损伤临近大血管。然而,在26%治疗肿瘤中出现了穿刺道的种植,IRE在24%的肿瘤中诱发消融热量累及胆管。

原始出处:

Distelmaier M, Barabasch A, Heil P, et al,Midterm Safety and Efficacy of Irreversible Electroporation of Malignant Liver Tumors Located Close to Major Portal or Hepatic Veins. Radiology. 2017.DOI: 10.1148/radiol.2017161561

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    2017-08-18 shaosai

    好好学习,谢谢分享!

    0

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    2017-08-18 虈亣靌

    讲解的非常好,值得学习

    0

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