肝脏的射频消融(RFA)

审查5/17/2021

What is radiofrequency ablation (RFA) of the liver?

无线电频率消融((RFA)is a technique that uses high frequency electrical energy that creates heat, delivered through a thin instrument known as aprobe, 摧毁组织。它被使用消灭肿瘤(要么癌症or cancers that have metastasized or spread to the liver) that cannot be removed by traditional手术

无线电频率消融还在许多其他医疗状况中使用。射频消融的其他用途的示例包括:

肝脏的射频消融(RFA)的用途是什么?

射频消融用于治疗肝细胞的肝癌(HCC),当这些肿瘤很小而肝细胞中产生的原发性癌症patient不是外科手术去除的合适候选人或肝移植。射频消融也可用于体内其他地方并已转移(转移)向肝脏的肝肿瘤。

What size tumor is treated by radiofrequency ablation (RFA)?

尚未确定通过消融治疗的肝肿瘤的最大尺寸。但是,射频消融最适合小于5的肿瘤厘米。Larger tumors may require more than one session.

如何准备射频消融(RFA)?

您的doctorwill give you specific instructions on how to prepare for the procedure. You may be advised to stop taking血液稀释剂medications before the procedure and not to drink or eat anything for some hours beforehand. Depending on the type of radiofrequency ablation that is done, and whether or not麻醉是必需的,您可以在手术后返回家中,或者您可以在hospital

What kind of equipment is used for radiofrequency ablation (RFA)?

成像程序类似CT((CT检查扫描,,,,ultrasound,,,,or magnetic resonance imaging (MRI)用于帮助引导探针进入肿瘤区域。该探针的设计就像长针电极,通过该电极通过高频电流。

射频消融(RFA)程序如何工作?

可以通过不同的方式进行射频消融。它可以在开放手术期间进行管理,腹腔镜手术,,,,or percutaneously (through theskin)using imaging studies to guide the placement of the probe.Interventional放射科医生是医生,他们通常通过皮肤进行RFA,而外科医生可能在腹腔镜或开放手术期间进行RFA。

在所有射频消融的情况下,将探针插入肿瘤的中心,而非绝缘电极(如插脚形状)都会从肿瘤中心插入。中央探测肿瘤。产生的局部热量融化组织(在A中process称为凝血坏死)adjacentto the probe. The probe is left in place for about 10 to 15 minutes. For larger tumors it might be necessary to re-position the probe in different areas of the tumor. Imaging studies are done anywhere from a few hours to weeks after the procedure to ensure that the entire tumor tissue has been cauterized.

幻灯片

丙型肝炎,HEP B,HEP A:症状,原因,治疗See Slideshow

What can you expect during radiofrequency ablation (RFA)?

无线电频率消融may be done using local anesthesia or全身麻醉(通常在手术期间进行RFA)。通过在皮肤上插入针头探针,可以完成射线射击擦除射击。在sertion站点麻木。通常,一个在travenous线可用于输送液体和药物。监视设备以测量heart rateand血压are attached to the body.

How long does the procedure last?

每个射频消融通常需要10-30分钟。消融多个区域需要更多的时间。整个过程通常在1-3小时内完成。手术后,患者留在恢复室里,直到完全清醒为止。

射频消融(RFA)疗法的风险和副作用是什么?

射频消融通常是耐受耐受性的,治疗后通常不会引起任何严重的疼痛。出血或在fection治疗后以及低风险受伤to the胆囊or胆汁管道。有时,低级feverand流感- 几天后可能存在类似症状。

Other possible side effects of radiofrequency ablation include

射频消融(RFA)疗法的成功率是多少?

In most studies, radiofrequency ablation is over 85% successful at destroying small liver tumors. Studies also节目通过射频消融去除的一半以上的肿瘤没有recur(回来)。因为治疗通常不会导致严重healthrisks,化学疗法can be resumed (if needed) soon after the procedure. Radiofrequency ablation usually has few complications, and can be repeated if necessary for the same or additional tumors.

健康解决方案来自我们的赞助商

References
Curley,S。A.等。“用于局部肝细胞癌的非外科治疗:射频消融,经皮乙醇注射,热消融和冷冻疗法。”最新。Apr. 14, 2021. .

健康解决方案来自我们的赞助商

Baidu