射频消融联合TACE治疗肝癌肾上腺转移

目的 探讨射频消融联合TACE治疗肝癌肾上腺转移的可行性、治疗效果及并发症。方法 回顾分析2006年7月—2010年3月,13例在我院行经射频消融联合TACE治疗的肝癌肾上腺转移患者,所有患者均经病理证实,其中2例为胆管细胞癌,10例为肝细胞癌,1例为混合细胞癌,均先行肝及肾上腺病灶的TACE术,其后8~18日行肾上腺肿瘤射频消融术。术后增强CT或MR复查病灶。结果 在治疗过程中患者耐受良好,无严重并发症发生,13例病例中有9例即70%(9/13)的患者病灶完全坏死,2例即15%(2/13)的患者病灶进展。病灶小于5 cm的患者8例中,7例即87%(7/8)的患者病灶完全坏死。并发症情况如下:1例患者发生术中高血压(220/115 mmHg),1例右肾上腺转移瘤的患者临近病灶的肝脏部分被消融,1例出现少量血气胸。结论 射频消融联合TACE治疗肝癌肾上腺转移瘤,是较为有效的治疗方法,安全性及患者的耐受情况良好,明显减少射频消融术后出血,消融范围充分、明确。     

冷循环射频消融治疗肝脏肿瘤42例报告

探讨冷循环射频消融治疗肝脏肿瘤的可行性和有效性。应用冷循环电极射频消融治疗42例肝脏肿瘤60个结节。37例在局麻超声引导下、2例在腹腔镜辅助下和3例在开腹术中行射频消融,射频消融治疗75点次。治疗后通过CT和MR随访,随访时间2～14个月,肿瘤完全低密度灶者占70%(42/60),增强扫描局部病灶有强化(残留或复发)8.3%(5/60)。初步研究结果提示,冷循环射频消融治疗肝脏肿瘤是有效和安全的。     

射频消融治疗肝脏恶性肿瘤的临床价值

目的:探讨射频消融(RFA)治疗肝脏恶性肿瘤的临床疗效及并发症.方法:对259例肝脏恶性肿瘤患者进行RFA治疗.肝细胞肝癌(HCC)223例行270人次的RFA,病灶总数372枚,平均1.4枚,肿瘤平均最大直径2.4±1.3cm,其中临床分期为Ⅰ期的61例;肝转移癌(MLC)36例行44人次的RFA,病灶总数72枚,平均1.6枚,肿瘤平均最大直径2.6±1.6cm.全组病例的治疗通过经皮穿刺和开腹两种途径.治疗原则为消融范围超过瘤周0.5～1.0cm.结果:RFA治疗后1个月行增强CT检查,HCC完全消融率97.3%(362/372),MLC完全消融率98.6%(71/72).随访2～65个月,HCC局部复发率7.8%(29/372),1、3、5年生存率分别为87.7%、55.3%、32.9%,其中61例Ⅰ期HCC患者1、3、5年生存率分别为97.6%、86.1%、47.0%;MLC局部复发率11.1%(8/72).中位生存期16～24个月.HCC患者RFA的严重并发症发生率2.2%(6/270),MLC治疗中出现2例较严重的并发症.结论:RFA对于肝脏恶性肿瘤尤其HCC是一种有效的治疗手段,而且安全、并发症少,具有重要的临床价值.     

CT引导下射频消融治疗中晚期非小细胞肺癌的近期疗效观察

背景与目的 近年来,射频消融术(Radio-Frequency Ablation,RFA)作为一种新的局部治疗手段运用于肺部肿瘤的治疗.取得了很好的临床效果.本文探讨CT引导下射频消融治疗中晚期肺癌的临床价值.方法 对66例中晚期非小细胞肺癌的68个病灶(其中2例病人各治疗2个病灶)在三维重建CT引导下进行射频消融治疗,观察近期疗效.结果 66例病人经CT引导下射频消融,即刻及1个月复查CT提示病灶阴影增大.而64个病灶CT值降低,占94.1%,4个病灶CT值增加,占5.9%.1个月复查SPECT提示T/N降低至正常值以下的患者占82.4%(56/68).治疗后3个月CT扫描显示在68个肿瘤中,没有肿瘤完全消失(CR)者,肿瘤缩小者(PR)73.5%(50/68),肿瘤无变化者(SD)2.9%(2/68),肿瘤增大者(PD)8.8%(6/68),6例增大的病灶进行了第2次消融;3个月复查SPECT提示T/N降低至正常值以下的患者占79.496(54/68).无严重并发症,无围手术期死亡.结论 CT6[导下射频消融治疗中晚期非小细胞肺癌安全可行,近期疗效明显.     

无水酒精注射联合射频消融治疗射频消融困难部位的肝癌

目的:探讨无水酒精注射联合射频消融治疗射频消融困难部位肝癌的疗效.方法:回顾性分析靠近结肠、胆囊、大中血管、膈肌等存在射频困难区肝癌患者31例,在采用射频治疗后残余病灶行无水酒精补充治疗,评价病灶坏死率及术后并发症.结果:31例患者的47个病灶当中共有33个病灶位于射频困难部位,肿瘤完全坏死率为72.7%(24/33).无腹腔内出血,胆囊穿孔,结肠穿孔等严重并发症出现.结论:射频困难部位的肝癌病灶采用射频补充无水酒精注射治疗效果良好,未见严重的射频或酒精注射相关并发症发生,可在肝癌的综合治疗中推广应用.     

CT引导下射频消融治疗非小细胞肺癌

目的探讨CT引导下射频消融治疗非小细胞肺癌的安全性及有效性。方法经病理证实的病灶≥5 cm,KPS评分≥70分的非小细胞肺癌患者35例(42枚病灶),于螺旋CT引导下采用单针多位点叠加射频消融术治疗。术后1、3、6个月复查螺旋CT了解肿瘤变化情况并记录。结果手术成功率100.00%,术后胸部螺旋CT扫描发现,其中3枚病灶达完全缓解,29枚病灶部分缓解,1枚病灶稳定,9枚病灶进展,总有效率为76.19%(32/42)。全组无患者出现支气管胸膜瘘、大出血及死亡等严重并发症。结论 CT引导下射频消融治疗非小细胞肺癌是一种安全有效的方法。     

经皮微波消融治疗鼻咽癌局限肝转移的疗效分析

背景与目的：局限性肝转移瘤由于数目、大小可控,局部微创治疗可以有效提高患者的生存期,微波消融已经成为肝转移瘤的重要治疗手段。该研究旨在探讨经皮肝穿刺微波消融治疗局限性鼻咽癌肝转移瘤的应用价值。方法：收集湖南省肿瘤医院自2011年9月—2014年10月共26例晚期放化疗失败的鼻咽癌肝脏转移患者的临床资料。患者肿瘤病灶数目小于等于3个,直径小于等于5 cm,且无其他远处转移病灶。在B超引导下行经皮肝穿刺微波消融治疗,26例患者共完成43次消融治疗,术后1个月复查肝功能、增强CT或者MRI,在mRECIST标准评价肿瘤治疗疗效。观察患者术后并发症,统计患者无疾病进展时间(progression-free survival,PFS)及总生存期(overall survival,OS)。结果：26例患者共53个病灶,其中完全消融(complete ablation,CA)20例(20/26,77.0%),部分消融(part ablation,PA)3例(3/26,11.5%),整体有效率(CA+PA)为88.5%,无严重并发症出现,26例患者0.5、1和2年生存率分别为96.1%、65.3%和23.0%,PFS为11.4个月,中位生存期(median survival time,MST)为17.8个月,OS为23.7个月。结论：经皮肝穿刺微波消融治疗局限性鼻咽癌肝转移瘤是微创、安全、有效的治疗方法。     

腹腔镜引导定位肝脏肿瘤射频消融治疗的临床观察

目的:探讨腹腔镜直视引导定位下肝癌射频热凝消融治疗(radio-ferquency ablation, RFA)的可行性.方法:在腹腔镜直视引导定位下分别对10例原发性肝癌和多发转移性肝癌进行一次性射频消融治疗.结果:10例患者28个瘤体中直径＜5 cm的20个肿瘤均获得一次性热凝损毁,其中18个瘤体完全缓解CR 90.0%(18/20),2个瘤体部分缓解PR 10.0%(2/20),近期疗效CR+PR为100.0%(20/20),1例术后15个月肝、肺转移复发;8个直径5～9 cm的瘤体近期疗效为CR+PR 100.0%(8/8),CR 50.0%(4/8),PR 50.0%(4/8),1例术后6个月发生肝门部转移及阻塞性黄疸而病情进展死亡,1例术后14个月因肝脏、肺脏广泛转移死亡.术后2周复查AFP、CEA和CA19-9等肿瘤标志均有不同程度的下降或转阴.所有患者均很好地耐受了射频消融治疗,无严重并发症出现.9例患者术后分别行1～4次肝动脉化疗栓塞介入治疗(TACE).1年生存率为85.7%(6/7),2年生存率为50.0%(3/6). 结论:腹腔镜直视引导定位下肝癌射频消融治疗为不能手术的原发性肝癌及多发性肝转移癌提供了一种微创、安全、有效、方便的治疗方法,与TACE结合效果更佳.     

大功率微波与射频消融治疗较大肝癌的近期疗效研究

目的 探讨大功率微波消融(microwave ablation,MWA)与射频消融(radiofrequency ablation,RFA)治疗较大肝癌的近期临床疗效及术后复发转移相关危险因素.方法 对101例未行其他治疗的原发性肝癌患者中45例(病灶数n=60)行大功率MWA治疗(80 ～ 100 W),56例(病灶数n=68)行RFA治疗.肿瘤直径范围为3～8cm,依据肿瘤直径分为两组:肿瘤直径3～ ＜5cm组及肿瘤直径≥5 cm组.消融后1月行超声造影、增强CT或MRI检查.观察治疗后两组患者肿瘤完全坏死率、局部复发率、并发症、生存情况,随访评价两种手术方式疗效并分析肝癌复发转移的相关危险因素.结果 大功率MWA与RFA对于3～ ＜5cm病灶1次完全坏死率分别为82.6％ (38/46)、80.0％ (40/50);2次完全坏死率分别为100.0％ (46/46)、98.0％ (49/50).MWA与RFA对于≥5cm病灶1次完全坏死率分别为64.3％ (9/14)、33.3％ (6/18);2次完全坏死率分别为85.7％ (12/14)、50.0％ (9/18).MWA与RFA组术后2年总复发率分别为40.0％ (18/45)、42.9％(24/56).MWA与RFA组术后1、2年生存率分别为95.6％ (43/45)、86.7％(39/45)及94.6％(53/56)、89.3％(50/56).两组患者并发症差异无统计学意义(P=0.802).单因素分析示术后复发转移与肿瘤个数(P=0.025)、术前AFP值(P=0.031)、乙肝HBV-DNA载量(P =0.035)及肿瘤病灶邻近危险区域(P=0.001)有关.多因素分析提示,乙肝HBV-DNA载量(P=0.023)与肿瘤病灶邻近危险区域(P=0.001)是肝癌消融治疗术后复发转移的独立危险因素.结论 MWA治疗较大肝癌的完全坏死率比RFA高,局部复发率比RFA低.肿瘤个数、术前AFP值、患者HBV-DNA病毒载量以及肿瘤病灶邻近危险区域都是肝癌术后复发转移的危险因素,其中后两者是独立危险因素.     

超声造影与增强CT对肝癌射频消融效果的一致性评价

  目的  对超声造影与增强CT对肝癌射频消融术后评价效果一致性进行分析。  方法  对35例患者共68个肿瘤病灶进行超声或CT引导下射频消融治疗,术后同时定期进行增强CT以及超声造影检查评价射频消融效果,分析超声造影以及增强CT在肿瘤完全消融率、残留率,复发率、准确性以及超声造影与增强CT一致性。  结果  68个病灶中,超声造影评价肿瘤总体完全消融率以及残留率分别为84%及16%,增强CT分别为90%及10%,二者之间比较差异无统计学意义(χ2=0.576 3,P=0.447 8),具有很高的一致性(K=0.882 9,Sk=0.120 4),68个病灶中24个月内共有13个病灶为复发病灶,超声造影对复发病灶检出率为92%(12/ 13),与增强CT 100%(13/13)之间比较差异无统计意义(P>0.05)。以增强CT作为判断RFA后肿瘤残留及复发的金标准,超声造影对68个肿瘤病灶总体诊断准确性为92%(63/68),5个病灶判断不一致。  结论  超声造影在肝癌射频消融效果评价中与增强CT具有很高准确性及一致性,能为肿瘤射频消融术后治疗提供可靠诊断依据。      

超声引导射频消融治疗肝脏恶性肿瘤302例肿瘤残留危险因素分析

背景与目的：射频消融(radiofrequencey ablation,RFA)是治疗原发性肝癌和部分转移性肝癌的有效的方法,本研究探讨肝脏恶性肿瘤RFA治疗后肿瘤残留的危险因素。方法：回顾性分析2010年1月-2013年3月复旦大学附属肿瘤医院收治的302例原发性肝癌和转移性肝癌患者共691个肝内病灶接受RFA治疗的临床资料,采用单因素和多因素Logistic Regression模型分析与RFA治疗后肿瘤残留有关的危险因素。结果：RFA治疗后272例(90.07%)患者的632个(91.46%)病灶完全消融,肿瘤残留率为8.54%。直径≤3 cm的肿瘤残留率为6.30%,3~5 cm为9.57%,>5 cm为28.57%;靠近肝内大血管和胆囊肿瘤残留率分别为17.14%和18.52%;联合其他局部治疗和未联合其他局部治疗的肿瘤残留率分别为7.02%和13.41%。多因素分析显示,肿瘤最大直径>5 cm(P=0.044)、靠近肝内大血管(P=0.039)和未联合其他局部治疗(P=0.001)是RFA治疗后肿瘤残留的独立危险因素。112例患者282个病灶最大直径3~5 cm,RFA治疗后肿瘤残留多因素分析显示,肿瘤靠近肝内大血管(P=0.014)、单针射频(P=0.047)和未联合其他局部治疗(P=0.023)是RFA治疗后肿瘤残留的独立危险因素。结论：超声引导的RFA治疗可以获得满意的消融效果,其中肿瘤靠近肝内大血管、肿瘤最大直径>5 cm和未联合其他局部治疗是肿瘤残留的独立危险因素,对于直径为3~5 cm的肿瘤,除靠近肝内大血管和未联合其他局部治疗外,单针射频也是肿瘤残留的独立危险因素,采用双针或多针治疗可以提高消融效率,降低肿瘤残留。     

Radiofrequency ablation of malignant liver tumors

The majority of patients with primary or metastatic hepatic tumors are not candidates for resection because of tumor size, location near major intrahepatic blood vessels precluding a margin-negative resection, multifocality, or inadequate hepatic function related to coexistent cirrhosis. Radiofrequency ablation (RFA) is an evolving technology being used to treat patients with unresectable primary and metastatic hepatic cancers. RFA produces coagulative necrosis of tumor through local tissue heating. Liver tumors are treated percutaneously, laparoscopically, or during laparotomy using ultrasonography to identify tumors and guide placement of the RFA needle electrode. For tumors smaller than 2.0 cm in diameter, one or two deployments of the monopolar multiple array needle electrode are sufficient to produce complete coagulative necrosis of the tumor. However, with increasing size of the tumor, there is a concomitant increase in the number of deployments of the needle electrode and the overall time necessary to produce complete coagulative necrosis of the tumor. In general, RFA is a safe, well-tolerated, effective treatment for unresectable hepatic malignancies less than 6.0 cm in diameter. Effective treatment of larger tumors awaits the development of more powerful, larger array monopolar and bipolar RFA technologies.     

Radiofrequency ablation of primary and metastatic hepatic malignancies

The majority of patients with primary of metastatic hepatic tumors are not candidates for resection, because of tumor size, location near major intrahepatic blood vessels precluding a margin-negative resection, multifocality, or inadequate hepatic function related to coexistent cirrhosis. Radiofrequency ablation (RFA) is an evolving technology being used to treat patients with unresectable primary and metastatic hepatic cancers. RFA produces coagulative necrosis of the tumor through local tissue heating. Liver tumors are treated percutaneously, laparoscopioally, or during laparotomy, using ultrasonography to identify tumors and to guide placement of the RFA needle electrode. For tumors smaller than 2.0 cm in diameter, one or two deployments of the monopolar multiple-array needle electrode are sufficient to produce complete coagulative necrosis of the tumor. However, with increasing size of the tumor, there is a concomitant increase in the number of deployments of the needle electrode and the overall time necessary to produce complete coagulative necrosis of the tumor. In general, RFA is a safe, well-tolerated, effective treatment for unresectable hepatic malignancies less than 6.0 cm in diameter. Effective treatment of larger tumors awaits the development of more powerful, larger array monopolar and bipolar RFA technologies. Received: January 7, 2002     

经皮射频消融联合瘤内无水酒精注射与单纯射频消融治疗小肝癌的疗效比较

目的比较经皮射频消融联合瘤内无水酒精注射（RFA-PEI）与单纯射频消融（RFA）治疗单发小肝癌的疗效。方法随机应用RFA—PEI和RFA分别治疗小肝癌45例和41例,并按病灶大小分为A组（最大直径≤3．0cm）和B组（最大直径3．1～5．0cm）,以生存率和无局部复发率作为评价指标,比较两种疗法的疗效、结果RFA-PE组和RFA组的6,12,18,24个月生存率分别为88．9％、84．0％、80．6％、73．9％和87．6％、78．3%、73．7％、61.4％（P=0．6181）,无局部复发率分别为95．4％、95．4％、87．8％、73．7％和94．9％、72．7％、68.4％、57.0％（P=0．0393）,其中A组为95．7％、95．7％、79．1％、79．1％和923％、83．2％、81.3％、65．9％（P=0．3679）;B组为95．0％、95．0％、95．0％、72．6％和100．0％、583％、45．4％．45．4％（P=0．0440）结论RFA-PEI治疗肝癌安全有效,操作简单易行,可以提高RFA治疗的疗效, 特别是对于肿瘤直径为3-5cm的病灶,可以减少局部复发率,提高远期生存率。     

Radiofrequency ablation: a minimally invasive technique with multiple applications

PURPOSE: Radiofrequency ablation (RFA) of soft tissue, which has recently been approved by the United States Food and Drug Administration, destroys tumor cells by delivering an electrical current through a 15-gauge needle. This study evaluated RFA for patients with hepatic malignancies considered unresectable because of their distribution, their number, and/or the presence of liver dysfunction. PATIENTS AND METHODS: Between November 1997 and February 1999, 50 patients with 132 unresectable hepatic metastases underwent RFA of tumors from 0.5 to 9 cm in diameter. There were 41 colorectal metastases in 22 patients, 13 hepatomas in seven patients, 37 neuroendocrine metastases in six patients, and 41 noncolorectal metastases in 15 patients. Real-time ultrasonography was used to guide RFA, and lesions were ablated by applying temperatures of approximately 100 degrees C for 8 minutes. Overlapping ablations were used for larger lesions. In patients with multiple lesions, RFA was performed simultaneously with cryosurgery, resection, and/or hepatic arterial infusion. RESULTS: RFA was undertaken percutaneously on an outpatient basis in 13 patients (25 lesions). The remaining patients underwent RFA via laparoscopy (21 patients; 58 lesions) or celiotomy (16 patients; 49 lesions); mean hospital stay was 1 and 5 days, respectively. RFA was the sole therapy in 28 patients and was additional therapy in 22 patients. At a median follow-up of 6 months, 27 patients were free of disease, 17 were alive with disease, and six had died of their disease (three colon, three melanoma). Three patients whose disease recurred at a prior RFA site underwent successful percutaneous RFA. Overall, there was a significant postoperative reduction in levels of carcinoembryonic antigen, alpha-fetoprotein, serotonin, and 5-hydroxyindoleacetic acid. Intraoperative ultrasonography identified unrecognized hepatic lesions in 12 of 37 patients (32%); these lesions were successfully ablated. When performed with cryosurgery, RFA reduced the morbidity of multiple freezes. DISCUSSION: RFA is a safe and effective alternative for the ablation of unresectable hepatic malignancies and when used adjunctively can reduce the morbidity of cryosurgery. Percutaneous and laparoscopic RFA can be performed effectively with less than 24 hours of hospitalization. Intraoperative ultrasonography is essential for accurate staging.     

活体猪肝第一,二肝门区的单极灌注式射频消融的安全性观察

背景与目的:肿瘤在累及肝门区域时,外科切除的难度大,肿瘤易复发.射频消融作为一种成熟的方法在累及肝门区肿瘤治疗中是否具有更大优势.是临床关注的问题.本实验观察单极射频消融时间与消融范围的相关性;对第一和第二肝门区组织消融处理,了解消融对血管及胆管系统的影响及其病理改变.方法:选用健康家猪6只,体重(47.0±2.5)ks/只.常规麻醉,开腹,在每一肝脏实质内共确定3个位点进行射频消融,射频消融基础功率设定为60 W,时间分别为3 min、5 min、10 min.对第二肝门的部位和第一肝门的位置分别进行5 min和10 min射频消融处理,然后关闭腹部伤口,继续饲养7～10天,将猪放血处死,完整取出肝脏.结果:大体标本上不同时间产生的结果为组织消融范围不同,均呈椭圆型.3 min、5 min、10 min消融时间产生坏死区长径分别为(2.7±0.2)cm、(4.6±1.1)cm、(5.8±0.7)cm;在大体标本上第一和第二肝门区消融坏死范围宽径分别为(3.2±1.1)cm、(3.3±0.4)cm,第一肝门区和第二肝门区血管壁、胆管系统未见有明确破坏,病理结果显示血管壁和胆管壁有炎症细胞浸润.第二肝门区消融,病理结果显示:5只邻近血管壁的消融区域完全坏死,1只显示在邻近血管壁正常肝组织中合并有大片状坏死.第一肝门区消融结果,病理分析消融中心部位肝且织完全坏死,4只邻近血管壁的消融区域完全坏死,2只显示在邻近血管壁正常肝组织中合并有大片状坏死.结论:射频消融时间影响消融组织的坏死范围.消融对门静脉、肝动脉、肝门区胆管系统影响较少,在肝门区组织中实行消融是安全的.     

Radio-frequency ablation (RFA) assisted endoscopic hepatectomy for hepatocellular carcinoma

We introduced a new therapeutic approach for hepatocellular carcinoma (HCC); Radio-frequency ablation (RFA) assisted endoscopic hepatectomy (RFA-assisted EH). Seven patients with HCC, smaller than 3 cm and located on the surface of the liver, were entered into this study. RFA on the hepatic cutting line was achieved with a 2 cm Cool-tip needle at a 1-cm interval. RFA power was gradually increased to 100 W in a minute and ablation was stopped once an impedance-out state was attained of RFA power. Hepatic resection was achieved with various items in a coagulative hepatic parenchyma. If necessary, additional RFA could be performed during the hepatectomy. Patients' characteristics were described as follows; average age: 64 years, 5 males and 2 females, liver damage A: 5, B: 2, average tumor size: 27 mm, and average tumor number: 1.3 Two thoracoscopic and 5 laparoscopic approaches were selected. One application of RFA could make an elliptical coagulative area (2 cm x 1 cm). RFA was achieved eleven times on the hepatic cutting line and three times during the hepatectomy. The average operating time and blood loss was 256 minutes and 96 g, respectively. No blood product was needed. The average postoperative hospital stay was 11 days and no operative complication was encountered. All of the patients were well and without recurrence during the observation period (average: 6 months). We positively recommend RFA-assisted EH for HCC due to its perfect radicality and safety.     

CT引导下经皮穿刺射频消融治疗特殊部位肝癌

目的 探讨CT引导下经皮穿刺射频消融（RFA）治疗特殊部位肝癌（直径≤3cm）的疗效及安全性。方法 回顾性分析2008年5月至2012年4月行CT引导下经皮穿刺RFA治疗47例肝癌患者,共消融63个特殊部位（指距离大血管、大胆管或肝外脏器5mm以内）病灶。所有患者术后均行增强CT复查及随访,统计肿瘤完全坏死率、肿瘤局部进展率、肿瘤肝内新生率、生存率及并发症。结果 所有患者均成功接受经皮穿刺RFA治疗。RFA术后1个月特殊部位肝癌完全坏死率为88.89％（56／63）;RFA术后3、6、12个月及1年以上的肿瘤局部进展率分别为4.77％（3／63）、3.17％（2／63）、3.17％（2／63）、1.59％（1／63）,肿瘤肝内新生率分别为15.87％（10／63）、4.76％（3／63）、12.70％（8／63）、3.17％（2／63）。至随访截止时间,47例患者的1、3、5年生存率分别为82.98％（39／47）、63.83％（30／47）、36.17％（17／47）。RFA术后,未出现任何严重并发症,6例（12.77％）出现肝包膜下少量血肿,10例（21.28％）术后发热,经对症处理后症状改善。结论 CT引导下经皮穿刺RFA治疗特殊部位肝癌是安全、有效的方法。     

Radiofrequency ablation of unresectable hepatic malignancies: lessons learned

Radiofrequency ablation (RFA) is increasingly used for the local destruction of unresectable hepatic malignancies. Relative contraindications include tumors in proximity to vital structures that may be injured by RFA and lesions whose size exceeds the ablation capabilities of the probe system employed. Given current technology, we believe that RFA should be cautiously utilized for lesions greater than 5 cm in diameter. Open (celiotomy) and laparoscopic approaches to RFA allow intraoperative ultrasonography, which may demonstrate occult hepatic disease. In addition, RFA performed via celiotomy can be accompanied by resection or cryosurgical ablation, and isolation of the liver from adjacent organs. Percutaneous RFA should be reserved for patients who cannot undergo general anesthesia, those with recurrent or progressive lesions, and those with smaller lesions sufficiently isolated from adjacent organs. Complications may be minimized when these approaches are selectively applied.