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。     

规范化射频消融治疗肝脏肿瘤

目的 探讨规范化射频消融治疗肝脏肿瘤的疗效、适应证、并发症和治疗规范.方法 严格按照术前评估、术中完全损毁和术后即时评价的规范化操作程序,对421例肝脏肿瘤患者进行冷循环射频消融治疗,共634处病灶,行射频消融1121次.结果 全组421例患者无术中死亡.全部634处病灶中有514处完全消融,占81.1%.其中最大径＜3 cm病灶的完全消融率为91.4%(382/418),3～5 cm病灶为78.9%(97/123),>5 cm病灶为37.6%(35/93).术后有147例(34.9%)出现一过性发热,136例(32.3%)出现腹痛,38例(9.0%)出现恶心,12例(2.9%)出现胸腔积液,2例(0.5%)出现肝脓肿,1例(0.2%)出现胆漏.结论 规范化射频消融治疗肝脏肿瘤效果确切,无严重并发症发生.     

经皮射频消融治疗胆囊旁肝肿瘤

[目的]探讨冷循环超能射频肿瘤治疗系统经皮治疗胆囊旁肝肿瘤的可行性和有效性。[方法]在超声引导下,采用冷循环电极对11例胆囊旁肝肿瘤病人15个肿瘤结节进行经皮射频消融治疗。[结果]11例病人中,9例术后出现腹痛,持续时间2~17天(7.5±4.2天);5例术后发热,体温≥38.5℃;2例术后白细胞>10.0×109/L,2例术后AFP和1例术后CEA降至正常范围。术后CT或超声证实,9例病人肿瘤完全毁损,其中3例病人在随访期间局部复发。[结论]冷循环超能射频肿瘤治疗系统治疗胆囊旁肿瘤是安全和有效的。     

彩超引导下经皮水冷循环微波热凝固治疗肝脏恶性肿瘤的疗效分析

为了探讨彩超引导下经皮水冷循环微波热凝固治疗肝脏恶性肿瘤手术(PMCT)的临床疗效,对53例原发性及转移性中小肝癌患者(共87个病灶)彩超引导下行PMCT,根据肿瘤大小和患者的耐受情况选择不同微波功率和作用时间,治疗后15 d用彩超造影复查评估短期疗效,并观察1年和2年生存率。微波治疗后彩超造影显示,61个治疗区内部各期均无异常增强区,提示肿瘤完全灭活,一次消融率为70.1%(61/87),其他26个治疗区〔29.9%(26/87)〕边缘局部或内部有早期结节状增强,判断有肿瘤残存。随访2年,3例失访,1年和2年生存率分别为79.2%(42/53)和49.1%(26/53)。PMCT术治疗原发性或转移性中小肝癌疗效好,创伤小,快速、简便,可重复,是一种有效的治疗方法。     

冷循环射频消融治疗恶性肿瘤的临床研究

目的探讨冷循环射频消融治疗恶性肿瘤的疗效。方法对60例原发性肝癌、肝转移癌、肺癌等恶性肿瘤进行射频治疗,术后定期复查彩超、CT、MIR和肿瘤标志物等,观察治疗效果。结果60例病人治疗后达到CR27例(45.0%),PR25例(41.7%),总有效率(CR PR)为86.7%,半年生存率100%,无严重并发症发生。结论射频消融对多种实体恶性肿瘤是一种安全的微创治疗技术,为晚期肿瘤综合治疗的一种有效方法。     

射频消融治疗26例第二肝门区肝癌

[目的]探讨第二肝门区肝癌射频消融的治疗结局。[方法]2006年1月～2008年1月26例第二肝门区肝癌患者的32个肿瘤接受了35次超声引导下经皮穿刺射频消融。[结果]26例患者初次射频消融第二肝门区肿瘤30个,22例患者的25个肿瘤完全消融,完全消融率84.6%。<3cm、3～4cm和>4cm的肿瘤完全消融率分别为91.3%、66.7%和0,差异有显著性(P=0.027)。26例中的9例因局部肿瘤残留、复发、新生等原因接受多次射频消融,26例患者共接受35次射频消融,32个肿瘤中完全消融29个,总体完全消融率90.6%(29/32)。无射频相关死亡发生,2例发生明显胸水,1例发生胆脂瘤并发肝内感染,3例发生局部复发。全组5例死亡,总体存活率80.8%。1年总体生存率86.7%,1年无复发生存率为71.4%。[结论]在熟知第二肝门区解剖特征、射频消融操作水平较好的情况下,射频消融治疗第二肝门区肝癌疗效确切、安全可靠。     

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.     

螺旋CT对原发性小肝癌射频消融术后的随访价值

目的探讨螺旋CT对原发性小肝癌射频消融术后的随访价值。方法选取2011年8月至2012年4月间上海中医药大学附属第七人民医院收治的行超声引导下经皮穿刺射频消融治疗的96例肝脏恶性肿瘤患者,包括69例原发性小肝癌和27例转移性小肝癌,定期进行螺旋CT双期增强扫描检查和MRI检查,观察射频消融的效果及肿瘤复发的情况。结果射频消融术后1个月螺旋CT复查,肿瘤完全坏死者64例(66.7%)肿瘤残留者18例(18.8%)。2例因故未作螺旋CT复查。射频消融术后3个月螺旋CT复查肝内肿瘤复发者12例(12.5%),其中6例为原位复发(6.3%)。与同期MRI检查结果比较,差异无统计学意义(P>0.05)。结论螺旋CT能对原发性小肝癌患者射频消融术治疗后的病灶变化进行监测和评价,在患者术后随访评价中具有重要的临床价值。     

微波消融治疗肝脏恶性肿瘤的临床价值

  目的  探讨微波消融(MWA)治疗肝脏恶性肿瘤的临床疗效及并发症分析。  方法  208例肝脏恶性肿瘤患者接受了241例次的MWA。肝细胞肝癌(HCC)171例行198例次的MWA, 肿瘤总数301个, 平均1.5个, 肿瘤平均最大直径(2.9±1.3)em, 其中57例接受了肝切除联合MWA; 肝转移癌(MLC)37例行43例次的MWA, 肿瘤总数67个, 平均1.6个, 肿瘤平均最大直径(2.6±1.5)cm。全组病例的治疗通过经皮和开腹两种途径, 治疗后定期进行影像学和肿瘤标志物检查。  结果  MWA 1个月后行增强CT检查, HCC 301个肿瘤中285个完全消融, 完全消融率为94.7%(285/301), MLC 67个肿瘤中62个完全消融, 完全消融率为92.5%(62/67)。随访3~43个月, HCC局部复发率为8.4%(24/285), 1、2、3年生存率分别为89.0%、74.2%、53.6%, 其中肝切除联合MWA治疗的患者1、2、3年生存率分别为81.3%、66.4%、46.7%;MLC局部复发率为9.7%(6/62), 中位生存期17~23个月。HCC患者MWA的严重并发症发生率为2.5%(5/198), MLC患者的治疗未出现严重并发症。  结论  MWA治疗肝脏恶性肿瘤创伤小, 安全有效, 具有重要的临床价值。      

超声引导经皮射频消融膈下肝肿瘤的安全性研究及疗效观察

  目的   探究超声引导下经皮射频消融对膈下肝肿瘤疗效及安全性。   方法   射频治疗79例共138个肝肿瘤,其中膈下肿瘤组76个,非膈下肿瘤组62个。比较两组并发症、完全消融、局部肿瘤复发发生率。   结果   两组完全消融率分别为92.1%（70/ 76）、98.4%（61/62）,两组比较差异无统计学意义（χ2=2.49,P=0.12）。随访局部肿瘤复发两组分别19.7%（15/76）、6.5%（4/62）,差异有统计学意义（χ2=5.08,P=0.02）;无瘤生存期分别为膈下肿瘤组（21.0±1.4）个月、非膈下肿瘤组（24.7±1.7）个月,差异有统计学意义（χ2=3.84,P=0.05）。10例患者发生并发症,胸水并发症发生率存在差异（χ2=4.52,P=0.034）,无射频治疗相关死亡,无针道转移发生,消融技术成功率为100%。   结论   射频消融是一种安全有效的微创治疗技术。肿瘤位置影响消融效果,膈下肿瘤较肝中央处肿瘤易发生消融区域肿瘤复发,术中麻醉医生的协作有利于消融的顺利完成。      

Radiofrequency ablation for hepatocellular carcinoma and liver metastases

We evaluated the efficacy of radiofrequency ablation (RFA) therapy for 29 patients with 36 hepatocellular carcinoma (HCC) nodules and 16 patients with 38 metastatic hepatic nodules. The mean tumor size was 26.4 mm. The primary lesions of patients with metastatic liver tumors were 9 colon cancer, 2 rectal cancer, 2 breast cancer, 2 gastric cancer, and 1 esophageal cancer. All nodules were treated using a Cool-tip RFA system. US-guided RFA was performed for 44 nodules, CT-guided RFA for 24 nodules, and intra-operative US-guided RFA for 6 nodules. In a mean observation period of 13.5 months, the mean complete ablation rate and the mean distant recurrence rate were 83.3% and 30.6% for HCC and 65.8% and 31.6% for metastatic nodules, respectively. The mean complete ablation rate of HCC was significantly higher than that of metastatic nodules (p < 0.05). The mean complete ablation rates of both HCC and metastatic hepatic nodules 3 cm or smaller in diameter were significantly higher than those of both tumors larger than 3 cm in diameter (p < 0.05). The mean distant recurrence rate of HCC in patients who have multiple nodules was 62.5% and it was significantly higher than that in patients who have a single nodule (28.6%) (p < 0.05). The mean complete ablation rate of metastatic nodules by intra-operative US guided RFA was 100% and it was statistically higher than that by other image guided RFA (p < 0.05).     

大肝癌患者行 TACE 序贯射频消融的疗效及复发因素

目的：探讨经导管肝动脉化疗栓塞（TACE）联合序贯射频消融术（RFA）治疗大肝癌患者的疗效及复发因素。方法：选取我院2013年1月－2015年1月肿瘤外科中晚期原发性大肝癌患者110例并分为肝动脉化疗栓塞组（TACE 组）与肝动脉化疗栓塞联合序贯经皮射频消融术组（TACE ＋RFA 组）各55例,TACE 组患者行一次或多次单一肝动脉化疗治疗;TACE ＋RFA 组在肝动脉化疗治疗结束后1～2周再行序贯经皮射频消融术治疗。结果：TACE 组与 TACE ＋RFA 组总有效率分别为63．64％（35／55）、94．54％（52／55）。TACE ＋RFA 组1年生存率为72．7％（40／55）,2年生存率为20．0％（11／55）,而 TACE 组分别为56．36％（31／55）、7．27％（4／55）。Log －rank 检验结果显示肿瘤数量、分期、血清甲胎蛋白水平等为大肝癌患者预后的因素,与患者预后有一定关系。结论：经导管肝动脉化疗栓塞（TACE）联合经皮射频消融术（RFA）治疗原发性中晚期大肝癌可以有效提高患者生存率,延长患者的生存期。肿瘤数量、直径、分期等是影响患者复发的危险因素。     

Higher Efficiency of Percutaneous Microwave (MWA) Than Radiofrequency Ablation (RFA) in Achieving Complete Response in Cirrhotic Patients with Early Hepatocellular Carcinoma

Background: Contrasting data are available in the literature regarding the superiority of percutaneous microwave ablation (MWA) or radiofrequency ablation (RFA) in very early or early (BCLA 0 or A) hepatocellular carcinoma (HCC). Aims: The primary outcome was to compare the efficacy of RFA and MWA in achieving complete response in cirrhotic patients with early and very early HCC. The secondary outcomes were to evaluate the overall survival and the recurrence rate. Methods: A retrospective, observational, single-center study was performed. Inclusion criteria were liver cirrhosis, new diagnosis of a single node of HCC measuring a maximum of 50 mm or up to three nodules with diameter up to 35 mm, treatment with RFA or MWA. Radiological response was evaluated with multiphasic contrast-enhanced Computed Tomography or Magnetic Resonance Imaging at 5–7 weeks after thermal ablation. Complete response was defined when no vital tissue was detected after treatment. Results: Overall, 251 HCC patients were included in this study; 81 patients were treated with MWA and 170 with RFA. The complete response rate was similar in MWA and RFA groups (out of 331 nodules, 87.5% (91/104) were treated with MWA and 84.2% (186/221) were treated with RFA, p = 0.504). Interestingly, a subanalysis demonstrated that for 21–35 mm nodules, the probability to achieve a complete response using MWA was almost 5 times higher than for RFA (OR = 4.88, 95% CI 1.37–17.31, p = 0.014). Moreover, recurrence rate in 21–35 mm nodules was higher with RFA with respect to MWA (31.9% versus 13.5%, p = 0.019). Overall survival was 80.4% (45/56) when treated with MWA and 62.2% (56/90) when treated with RFA (p = 0.027). No significant difference was observed between MWA and RFA treatment in the 15–20 mm nodules group. Conclusion: This study showed that MWA is more efficient than RFA in achieving complete response in HCC nodules with 21 to 35 mm diameter.     

射频消融在治疗肝癌合并肝动脉-门静脉分流中的应用价值

目的评价射频消融(RFA)对肝癌合并肝动脉-门静脉分流(APS)的治疗价值。方法对34例肝癌合并APS患者,针对APS和肿瘤行射频消融治疗,2周后行肝增强CT或MRI扫描并行TACE治疗。比较肿瘤消融、坏死效果及APS分流道封闭情况。结果射频消融术后15例中央型APS完全消失4例,分流减少8例,3例无明显变化;10例肝段型APS,有3例术后APS消失,5例好转,2例无变化;周围型9例,术后消失5例,好转4例。38个消融病灶中,完全坏死11个病灶,14个病灶坏死面积超过50%,坏死50%以下有8个病灶,4个病灶RFA术后强化面积无变化,1个病灶进展。术后随访3～12月,3、6、9、12月累计生存率分别为100%、94.1％、82.4％、73.5％。结论射频消融联合TACE是治疗肝癌合并肝动脉-门静脉分流的安全有效的方法。     

Hepatocellular carcinoma abutting large vessels: comparison of four percutaneous ablation systems

Purpose: To compare overall local tumour progression (OLTP), defined as the failure of primary ablation or local tumour progression, with single applicator monopolar radiofrequency ablation (RFA), microwave ablation (MWA), cluster-RFA and multi-bipolar radiofrequency (mbpRFA) in the treatment of hepatocellular carcinoma (HCC)?≤?5?cm abutting large vessels (≥3?mm).

Materials and methods: This multicenter, retrospective, per-nodule study was performed from 2007 to 2015. The study was approved by the ethics review board, and informed consent was waived. A total of 160/914 HCC nodules treated by thermal ablation and abutting large vessels (40 per treatment group) treated by monopolar RFA, MWA, cluster-RFA or mbpRFA were matched for tumour size, alpha-feto-protein level and vessel size. OLTP rates were compared by the log-rank test and the multivariate Cox model after matching.

Results: No differences were observed in tumour size, vessel size or alpha-feto-protein levels among the three groups (p?=?1). The cumulative 4-year OLTP rates following monopolar RFA, cluster-RFA, multi-bipolar RFA and MWA were 50.5%, 16.3%, 16.3% and 44.2%, respectively (p?=?0.036). On multivariate Cox regression, vessel size ≥10?mm, monopolar RFA and MWA were independent risk factors of OLTP compared to cluster-RFA or mbpRFA.

Conclusion: Multi-applicator RFA provides better local tumour control in HCC abutting large vessels than single-applicator techniques (monopolar RFA or MWA).     

射频消融治疗329例肺部恶性肿瘤临床安全及疗效的研究

背景与目的射频消融(radiofrequency ablation,RFA)是近年来用于无法手术的肺部恶性肿瘤及肺转移瘤治疗的替代方案。本研究旨在评估肺射频消融术的安全性和临床疗效。方法本研究回顾性分析1999年10月-2006年7月在第四军医大学唐都医院胸腔外科进行肺部恶性肿瘤射频消融术的患者329例(其中肺部原发肿瘤237例,转移瘤92例),对其进行射频治疗后的并发症、局部进展以及1年、2年和5年总生存期的临床资料进行了研究及评价分析。结果行射频手术的患者术后出现的并发症包括:气胸63例(19.1%),咯血14例(死亡1例,4.2%),血胸10例(3.0%),肺炎15例(4.5%)和心包填塞3例(死亡1例,0.9%),术后30天内的死亡率为0.6%,针道肿瘤种植的患者6例(1.8%)。中位无进展时间为21.6个月。1年、2年和5年总生存率分别为68.2%、35.3%和20.1%。共有78例(23.7%)患者出现后期肿瘤局部进展。肺部肿瘤原位局部进展的患者的肿瘤包块直径大多>4cm;在肿瘤局部进展方面,肿瘤<3cm的患者与直径介于3cm-4cm的肿瘤患者相比没有明显差异,这两组患者与直径>4cm的肿瘤患者间...     

人工胸腔积液超声引导经皮射频消融治疗膈顶部肝癌

目的：经皮超声引导射频消融是治疗肝脏肿瘤的一种有效的微创方法。但当肿瘤位于肝膈顶部时,由于肺脏气体的干扰肿瘤难以显示,治疗受到了限制。本文将评估射频结合人工胸腔积液治疗肝膈顶部肿瘤的安全性与可行性,并初步探讨其临床应用价值。方法：15例原发性肝细胞肝癌患者,男性12例,女性3例,肿瘤均位于肝膈顶部。采用超声引导下冷循环射频结合人工胸腔积液的方法对肿瘤进行治疗。术后1月对所有治疗患者均进行增强CT或磁共振检查。结果：所有病例均安全完成射频治疗,未发生手术相关的并发症。随访时间2-18个月,11例患者存活。结论：人工胸腔积液结合经皮射频消融术可能是治疗肝脏膈顶部肿瘤一种安全可行的方法,值得进一步研究。     

Radiofrequency ablation for recurred renal cell carcinoma in the solitary kidney due to von Hippel-Lindau disease--indication and tip on how to prevent the thermal injury of the adjacent organs

A 48-year-old female with the von Hippel-Lindau disease had the recurred renal cell carcinomas (RCCs) in the left remnant kidney after the right nephrectomy and partial resection of the left kidney due to the multiple RCCs. We performed radiofrequency ablation (RFA) under CT guidance for the treatment of that recurred tumor. As the tumors were adjacent to the descending colon, we injected the carbon dioxide gas (a dissection technique) during a radiofrequency ablation (RFA) procedure to displace the descending colon from the tumors. As a result, we were able to successfully achieve RFA for the recurred tumors without any complications including the intestinal thermal injury such as wall thickening or perforation. The patient survives well 5 months after RFA without the local recurrence. RFA in the solitary kidney is safe and effective treatment to preserve the remaining renal function, and the dissection technique using with carbon dioxide gas is also useful to avoid the thermal injury of the adjacent organs.     

Histologic evaluation of radiofrequency ablation in renal cancer.

AIM: To report on the histologic evaluation of renal tumors after intraoperative radiofrequency ablation (RFA) performed immediately before surgical nephrectomy. MATERIALS AND METHODS: Ten patients with renal tumors were studied. All tumors were confirmed to be renal cell carcinoma before radio frequency ablation treatment. All specimens were stained with hematoxylin and eosin and nicotinamide adenine dinucleotide (NADH). RESULTS: Mean tumor size was 29 mm (range 14 to 48 mm). Of the 10 tumors 5 were completely devitalized with a treatment margin ranged from 1 to 20mm. One tumor needed two treatment sessions. No complication related to radiofrequency treatment was recorded. CONCLUSIONS: Our data indicate that RFA can completely destroy renal tumors. However, in our study, complete tumor cell death was obtained only in 50% of cases. More studies are needed to ensure that is technique is an effective and reproducible treatment.