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Impact of endoscopic ultrasound-guided radiofrequency ablation in managing pancreatic malignancy
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作者 Cosmas Rinaldi Adithya Lesmana 《World Journal of Gastrointestinal Surgery》 SCIE 2023年第2期163-168,共6页
Pancreatic malignancy is still the most lethal gastrointestinal malignancy.It has a very poor prognosis with low survival rate.Surgery is still the main treatment option for pancreatic malignancy.Most patients already... Pancreatic malignancy is still the most lethal gastrointestinal malignancy.It has a very poor prognosis with low survival rate.Surgery is still the main treatment option for pancreatic malignancy.Most patients already have locally advanced and even late stage disease due to non-specific abdominal symptoms.Even though some cases are still suitable for surgical treatment,due to its aggressiveness adjuvant chemotherapy is becoming the standard treatment for controlling the disease.Radiofrequency ablation(RFA)is a thermal therapy that has been used as one of the standard treatments for liver malignancy.It can also be performed intraoperatively.There are several reports on percutaneous RFA treatment for pancreatic malignancy using transabdominal ultrasound and guided by computed tomography scan.However,due to its anatomical location and the risk of high radiation exposure,these methods seem to be very limited.Endoscopic ultrasound(EUS)has been widely used for pancreatic abnormality evaluation due to its ability to detect more accurately,especially small pancreatic lesions,compared to other imaging modalities.By the EUS approach,it is easier to achieve good visualization of tumor ablation and necrosis as the echoendoscope position is closer to the tumor area.Based on studies and a recent meta-analysis,EUS-guided RFA is a promising treatment approach for most pancreatic malignancy cases,but most studies only collected data from a small sample size.Larger studies are needed before clinical recommendations can be made. 展开更多
关键词 Endoscopic ultrasound radio frequency ablation PERCUTANEOUS SURGERY Pancreatic malignancy
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Hemodynamic changes in hepatic cancer before and after cluster electrode radio-frequency ablation 被引量:1
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作者 Shu-Rong Luo Yun-You Duan +1 位作者 Bo-Shan Zhao Li-Jun Yuan From the Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi’an 710038, China 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2002年第2期215-218,共4页
Objective: To evaluate the hemodynamic changes of hepatic artery (HA), portal vein (PV) and tumors in hepatic cancer patients treated by cluster electrode radio-frequency ablation with the aid of color Doppler flow im... Objective: To evaluate the hemodynamic changes of hepatic artery (HA), portal vein (PV) and tumors in hepatic cancer patients treated by cluster electrode radio-frequency ablation with the aid of color Doppler flow imaging (CDFI). Methods: The hemodynamic changes of HA, PV and 42 tumors in 30 cases of hepatic cancer were investi- gated by CDFI one week before and after cluster e- lectrode radio-frequency ablation. Results: One week after radio-frequency ablation, the velocity of HA decreased (P<0.05), but the dia- meter and velocity of PV unchanged. Before radio- frequency ablation, blood signals were observed in 35 cancer nodes (83.0 % of all 42 nodes). After radio- frequency ablation, blood signals were reduced in 15 nodes and disappeared in 14 nodes. Early investiga- tion implied that the decrease of blood supply was parallel with the reduction of node size. However, the outcome in case of huge nodes with double blood supply was not as promising as those small nodes. Conclusion: CDFI is useful to assess blood supply in ablation of hepatic cancer by using cluster electrode radio-frequency therapy. 展开更多
关键词 CDFI hepatic cancer radio-frequency ablation HEMODYNAMIC
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Radiofrequency ablation as a treatment for hilar cholangiocarcinoma 被引量:7
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作者 Wei-Jun Fan Pei-Hong Wu +6 位作者 Liang Zhang Jin-Hua Huang Fu-Jun Zhang Yang-Kui Gu Ming Zhao Xiang-Long Huang Chang-Yu Guo 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第28期4540-4545,共6页
AIM: To explore the role of radio-frequency ablation (RFA) as a treatment for hilar cholangiocarcinoma. METHODS: Eleven patients with obstructive cholestasis underwent Computed Tomography (CT) examination, occupying l... AIM: To explore the role of radio-frequency ablation (RFA) as a treatment for hilar cholangiocarcinoma. METHODS: Eleven patients with obstructive cholestasis underwent Computed Tomography (CT) examination, occupying lesions were observed in the hepatic hilar region in each patient. All lesions were confirmed as cholangioadenocarcinoma by biopsy and were classified as type or by percutaneous transhepatic cholangiography. Patients were treated with multiple electrodes RFA combined with other adjuvant therapy. The survival rate, change of CT attenuation coefficient of the tumor and tumor size were studied in these patients after RFA. RESULTS: In a follow-up CT scan one month after RFA, a size reduction of about 30% was observed in six masses, and two masses were reduced by about 20% in size, three of the eleven masses remained unchanged. In a follow-up CT scan 6 mo after RFA, all the masses were reduced in size (overall 35%), in which the most significant size reduction was 60%. The survival follow-up among these eleven cases was 18 mo in average. Ongoing follow-up showed that the longest survival case was 30 mo and the shortest case was 10 mo. CONCLUSION: RFA is a microinvasive and effective treatment for hilar cholangiocarcinoma. 展开更多
关键词 烧灼技术 无线电频率 胆管癌 X线技术
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A case of splenic abscess after radiofrequency ablation 被引量:6
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作者 Dimitris Zacharoulis Emmanuel Katsogridakis Constantinos Hatzitheofilou 《World Journal of Gastroenterology》 SCIE CAS CSCD 2006年第26期4256-4258,共3页
Radiofrequency 脱离(RFA ) 是首先为 unresectable 肝肿瘤的矫形疗法使用的一种创新技术。它不管多么的治疗学的指示,被扩展了并且现在包括许多其他的机关和疾病。有关于在怒气的 RFA 的使用的技术细节和复杂并发症的数据的少量。我... Radiofrequency 脱离(RFA ) 是首先为 unresectable 肝肿瘤的矫形疗法使用的一种创新技术。它不管多么的治疗学的指示,被扩展了并且现在包括许多其他的机关和疾病。有关于在怒气的 RFA 的使用的技术细节和复杂并发症的数据的少量。我们为脾的棘球蚴病用射频脱离报导部分脾切除术的一个案例,由脓肿形成复杂。 展开更多
关键词 脾脓肿 射频消融 治疗 临床
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Scattered and rapid intrahepatic recurrences after radio frequency ablation for hepatocellular carcinoma 被引量:7
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作者 Kazuhiro Kotoh Munechika Enjoji +4 位作者 Eiichirou Arimura Shusuke Morizono Motoyuki Kohjima Hironori Sakai Makoto Nakamuta 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第43期6828-6832,共5页
AIM: To evaluate a series of patients with hepatocellular carcinoma (HCC) treated with several different protocols and devices.METHODS: We treated 138 patients [chronic hepatitis/liver cirrhosis (Child-Pugh A/B/C), 3/... AIM: To evaluate a series of patients with hepatocellular carcinoma (HCC) treated with several different protocols and devices.METHODS: We treated 138 patients [chronic hepatitis/liver cirrhosis (Child-Pugh A/B/C), 3/135 (107/25/3)]with two different devices and protocols: cool-tip needle [initial ablation at 60 W (standard method) (n=37)or at 40 W (modified method) (n = 28)] or; ablation with a LeVeen needle using a standard single-step, full expansion (single-step) method (n = 39) or a multi-step,incremental expansion (multi-step) method.RESULTS: Eleven patients experienced rapid and scattered recurrences 1 to 7 mo after the ablation. Nine patients were treated by the cool-tip original protocol (60 W) (9/37=24%) and the other two by the LeVeen single-step method (2/39=5%). The location of the recurrence was surrounding and limited to the site of ablation segment in three cases, and spread over one lobule or both lobules in the other eight cases. There was no recurrence in the patients treated with the modified cool-tip modified method (40 W) or the LeVeen multi-step method.CONCLUSION: There is a risk of rapid and scattered recurrence after RFA, especially when the standard cooltip procedure is used. Because such recurrence would worsen the prognosis, we recommend that modified protocols for the cool-tip and LeVeen needle methods should be used in clinical practice. 展开更多
关键词 肝内循环 放射治疗 肝细胞癌 照射频率
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Therapeutic effects of radio frequency ablation in lung tumor treatment
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作者 康世均 罗荣城 +5 位作者 廖旺军 王传彬 罗宇玲 张鸣江 吴湖柄 张雪林 《Journal of Medical Colleges of PLA(China)》 CAS 2001年第3期208-210,共3页
Objective:To assessthetherapeuticeffectsof radiofrequencyablation(RFA)inthetreatmentof patientswith unresectablemalignantlung tumors.Methods:Twentypatientswithprimaryor metastaticmalignantlungtumorsreceived RFAtreatme... Objective:To assessthetherapeuticeffectsof radiofrequencyablation(RFA)inthetreatmentof patientswith unresectablemalignantlung tumors.Methods:Twentypatientswithprimaryor metastaticmalignantlungtumorsreceived RFAtreatment,andimaginganalysiswithCT,X-rayandpositionemissiontomograghy(PET)was performed1weekbe-foreand1to2weeksaftertreatment.Results and Conclusion:Postoperativefeveroccurredin6patientsandpneuma-tothoraxduringtheRFAprocedureswasfoundin5patients.PETdemonstratedthattumorssmallerthan3.5cm indiame-ter,whichis thegeneralcoverageof theRFAsystemwe adopted,dissipatedafterRFA,andtheproportionof the largertu-morswithinRFAcoveragewasdestroyed,whiletherestoutsideremainedintact.PETis currentlythemostreliabletech-niqueto observetheshort-termtherapeuticeffectsof RFAon tumorsincomparisonwithotherimagingapproaches. 展开更多
关键词 radio frequency ablation POSITIVE EMISSION tomograghy neoplasm LUNG
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Fabrication and properties of high performance YBa_2Cu_3O_(7-δ) radio frequency SQUIDs with step-edge Josephson junctions 被引量:1
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作者 刘政豪 魏玉科 +3 位作者 王达 张琛 马平 王越 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第9期419-422,共4页
We describe the fabrication of high performance YBa2Cu3O7-δ (YBCO) radio frequency (RF) superconducting quantum interference devices (SQUIDs), which were prepared on 5 mm×5 mm LaAlO3 (LAO) substrates by ... We describe the fabrication of high performance YBa2Cu3O7-δ (YBCO) radio frequency (RF) superconducting quantum interference devices (SQUIDs), which were prepared on 5 mm×5 mm LaAlO3 (LAO) substrates by employing stepedge junctions (SEJs) and in flip-chip configuration with 12 mm×12 mm resonators. The step in the substrate was produced by Ar ion etching with step angles ranging from 47° to 61°, which is steep enough to ensure the formation of grain boundaries (GBs) at the step edges. The YBCO film was deposited using the pulsed laser deposition (PLD) technique with a film thickness half of the height of the substrate step. The inductance of the SQUID washer was designed to be about 157 pH. Under these circumstances, high performance YBCO RF SQUIDs were successfully fabricated with a typical flux-voltage transfer ratio of 83 mV/φ0, a white flux noise of 29 μφ0/√Hz, and the magnetic field sensitivity as high as 80 fT/√Hz. These devices have been applied in magnetocardiography and geological surveys. 展开更多
关键词 superconducting quantum interference device (SQUID) YBa2Cu3O7-δ (YBCO) step-edge junction radio frequency
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Radiological findings in non-surgical recurrent hepatocellular carcinoma:From locoregional treatments to immunotherapy
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作者 Davide Ippolito Cesare Maino +5 位作者 Marco Gatti Paolo Marra Riccardo Faletti Francesco Cortese Riccardo Inchingolo Sandro Sironi 《World Journal of Gastroenterology》 SCIE CAS 2023年第11期1669-1684,共16页
Since hepatocellular carcinoma(HCC)represents an important cause of mortality and morbidity all over the world.Currently,it is fundamental not only to achieve a curative treatment but also to manage in the best way an... Since hepatocellular carcinoma(HCC)represents an important cause of mortality and morbidity all over the world.Currently,it is fundamental not only to achieve a curative treatment but also to manage in the best way any possible recurrence.Even if the latest update of the Barcelona Clinic Liver Cancer guidelines for HCC treatment has introduced new locoregional techniques and confirmed others as well-established clinical practices,there is still no consensus about the treatment of recurrent HCC(RHCC).Locoregional treatments and medical therapy represent two of the most widely accepted approaches for disease control,especially in the advanced stage of liver disease.Different medical treatments are now approved,and others are under investigation.On this basis,radiology plays a central role in the diagnosis of RHCC and the assessment of response to locoregional treatments and medical therapy for RHCC.This review summarized the actual clinical practice by underlining the importance of the radiological approach both in the diagnosis and treatment of RHCC. 展开更多
关键词 Carcinoma HEPATOCELLULAR Liver ablation CATHETER radio frequency ablation ablation techniques Medication therapy management RECIST
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Successful initial ablation therapy contributes to survival in patients with hepatocellular carcinoma 被引量:8
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作者 Manabu Morimoto Kazushi Numata +7 位作者 Kazuya Sugimori Kazuhito Shirato Atsushi Kokawa Hiroyuki Oka Kingo Hirasawa Ryonho Koh Hiromi Nihommatsu Katsuaki Tanaka 《World Journal of Gastroenterology》 SCIE CAS CSCD 2007年第7期1003-1009,共7页
AIM: To evaluate the outcome predictors of percu- taneous ablation therapy in patients with unresectable hepatocellular carcinoma (HCC), especially to identify whether the initial treatment response contributes to the... AIM: To evaluate the outcome predictors of percu- taneous ablation therapy in patients with unresectable hepatocellular carcinoma (HCC), especially to identify whether the initial treatment response contributes to the survival of the patients. METHODS: The study cohort included 153 patients with single (102) and two or three (51) HCC nodules 5 cm or less in maximum diameter. As an initial treatment, 110 patients received radiofrequency ablation and 43 patients received percutaneous ethanol injection. RESULTS: The Kaplan-Meier estimates of overall 3- and 5-year survival rates were 75% and 59%, respectively. The log-rank test revealed statistically significant differences in the overall survivals according to Child- Pugh class (P = 0.0275), tumor size (P = 0.0130), serum albumin level (P = 0.0060), serum protein induced by vitamin K absence or antagonist Ⅱ level (P = 0.0486), and initial treatment response (P = 0.0130). The independent predictors of survival were serum albumin level (risk ratio, 3.216; 95% CI, 1.407-7.353; P = 0.0056) and initial treatment response (risk ratio, 2.474; 95% CI, 1.076-5.692; P = 0.0330) based on the Cox proportional hazards regression models. The patients had a serum albumin level 3.5 g/dL and the 3- and 5-year survival rates of 86% and 82%. CONCLUSION: In HCC patients treated with percutaneous ablation therapy, serum albumin level and initial treatment response are the independent outcome predictors. 展开更多
关键词 消融治疗 肝细胞癌 治疗 病理机制
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射频消融针热损伤区域研究和分析
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作者 余厉阳 陈瑶英 +2 位作者 陶家炜 饶鑫 杨勇 《中国生物医学工程学报》 CAS CSCD 北大核心 2024年第2期252-256,共5页
针对射频消融针消融过程中热损伤区域控制偏离预期以及肿瘤消融不彻底的问题,利用COMSOL仿真软件,研究不同属性的电极材料、冷却循环水、电极结构射频消融针对组织消融效果的影响。研究结果表明,高电导率和热导率材料的消融针,升温更快... 针对射频消融针消融过程中热损伤区域控制偏离预期以及肿瘤消融不彻底的问题,利用COMSOL仿真软件,研究不同属性的电极材料、冷却循环水、电极结构射频消融针对组织消融效果的影响。研究结果表明,高电导率和热导率材料的消融针,升温更快,可以更加有效的加热组织;靠近针尖的位置,温升由焦耳热决定,而远离针尖位置处的温升,主要由热传导决定;消融针中的冷却循环水,不会改变焦耳热和热传导,但会控制消融针表面温度,降低表面组织吸附量,让组织温升更均匀,从而扩大消融区域;多级针和单极针比,相当于有多个单极针加热源;多个加热源形成的消融区域随时间增大,在组织中相互重叠,可以形成更接近肿瘤形状的消融区域;消融针的弯曲程度趋近180°时,会导致消融区域横向直径增加。 展开更多
关键词 射频消融 电极材料 水冷循环针 多级针
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基于心脏超声构建心房颤动射频消融术后复发的预测模型
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作者 王丹 刘璐 +2 位作者 柳仕博 魏云 李威震 《河南医学研究》 CAS 2024年第16期2942-2946,共5页
目的基于心脏超声构建心房颤动射频消融术后复发的预测模型,评价其临床效果。方法选取2021年7月至2023年7月郑州大学第一附属医院收治的306例接受心房颤动射频消融术患者为研究对象,根据术后6个月内复发情况分为复发组、未复发组。比较... 目的基于心脏超声构建心房颤动射频消融术后复发的预测模型,评价其临床效果。方法选取2021年7月至2023年7月郑州大学第一附属医院收治的306例接受心房颤动射频消融术患者为研究对象,根据术后6个月内复发情况分为复发组、未复发组。比较两组临床资料及心脏超声定量参数,分析术后复发的影响因素,构建术后复发的预测模型,并进行评价与验证。结果306例患者术后6个月内复发89例,复发率为29.08%;复发组高血压、阻塞性睡眠呼吸暂停低通气综合征(OSAHS)、慢性心力衰竭患者占比高于未复发组,病程长于未复发组,左房前后径、右房横径、肺动脉收缩压、经二尖瓣左室舒张早期血流速度/组织多普勒成像舒张早期二尖瓣环运动速度(E/e’)高于未复发组(P<0.05)。高血压、OSAHS、慢性心力衰竭、病程、左房前后径、E/e’均是术后复发的相关影响因素(P<0.05);构建预测模型,该模型的C-index为0.899,评价与验证结果显示该模型具有较高预测价值及明显临床正向净收益。结论左房前后径、慢性心力衰竭、病程、E/e’、高血压、OSAHS是心房颤动射频消融术后复发的独立影响因素,基于上述因素构建随机森林预测模型具有较好预测效能及临床正向净收益,可为临床早期预测术后复发情况提供参考,并对后续临床决策具有一定指导意义。 展开更多
关键词 心脏超声 定量参数 临床资料 心房颤动 射频消融术 复发 预测模型
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Intraperitoneal hemorrhage during and after percutaneous radiofrequency ablation of hepatic tumors: reasons and management 被引量:10
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作者 CHEN Min-hua DAI Ying +5 位作者 YAN Kun YANG Wei GAO Wen WU Wei LIAO Sheng-ri HAO Chun-yi 《Chinese Medical Journal》 SCIE CAS CSCD 2005年第20期1682-1687,共6页
Background Introperitoneal hemorrhage is one of the most common complications of radiofrequency (RF) ablation of hepatic tumors. This study was designed to investigate the reason and management of intraperitoneal he... Background Introperitoneal hemorrhage is one of the most common complications of radiofrequency (RF) ablation of hepatic tumors. This study was designed to investigate the reason and management of intraperitoneal hemorrhage occurred during or after percutaneous RF ablation of hepatic tumors.Methods Three hundred and flfty-six patients with hepatic tumors have been treated at 592 procedures of ultrasound guided RF ablation. Intraperitoneal hemorrhage occurred in 5 patients (0. 8% ). The reasons and management of intraperitoneal hemorrhage in these 5 cases were retrospectively analyzed.Results Two patients with liver metastasis and one hepatocellular carcinoma (HCC) patient suffered from hemorrhage during the RF treatment. Two patients with recurrent HCC after surgery developed hemorrhage 20 minutes or 4 hours after RF treatment. One case of hemorrhage was due to the inappropriate electrode positioning induced liver laceration while treating a 1 cm liver metastasis near the liver capsule. One was due to the injury of a small vessel by the RF needle in another liver metastasis patient. Three cases were due to tumor rupture with two cases induced by cough or position change after treating large protruding HCC lesions. Four (80%) of the 5 cases of hemorrhage were rapidly identified by ultrasound. The causes and sites of bleeding during the RF treatment in three cases were confirmed through ultrasound, which were successfully treated using RF coagulation to achieve hemostasis of the bleeding site. Two patients with post-ablation hemorrhage recovered in one hour and 24 hours, respectively after given blood transfusion and other conservative measures. No surgical intervention was required. Two patients died of wide spread metastasis 23-36 months afterwards and the other three patients have lived for 18-25 months to date.Conclusions It is important to perform close monitoring during and after RF ablation in order to identify intraperitoneal hemorrhage in time. RF ablation of the bleeding sites was a simple and effective management when the bleeding site could be confirmed by ultrasound. The hemorrhage due to the rupture of large and protruding liver tumors could be serious and should be considered as contraindication for RF treatment. 展开更多
关键词 liver neoplasm radio frequency ablation COMPLICATION intraperitoneal hemorrhage ULTRASOUND
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MR动态增强扫描减影技术评估肝癌肝动脉栓塞化疗和射频消融术疗效价值研究
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作者 王博生 李立超 邱立燕 《影像技术》 CAS 2024年第3期11-15,24,共6页
目的:探讨MR动态增强扫描减影技术评估肝癌肝动脉栓塞化疗(TACE)和射频消融术(RFA)疗效价值。方法:选取2020年12月-2023年11月于我院进行治疗的40例肝癌患者,依据治疗方式的不同分为观察组与对照组,每组各20例。对照组患者和观察组患者... 目的:探讨MR动态增强扫描减影技术评估肝癌肝动脉栓塞化疗(TACE)和射频消融术(RFA)疗效价值。方法:选取2020年12月-2023年11月于我院进行治疗的40例肝癌患者,依据治疗方式的不同分为观察组与对照组,每组各20例。对照组患者和观察组患者均进行MR检查,对照组患者行TACE治疗方法,观察组患者行RFA治疗方法,对比两组患者的临床疗效、不良反应发生情况、肿瘤灭活率、肝功能以及AFP水平。结果:观察组的总有效率为100.00%,对照组的总有效率为75.00%,经过对比,有显著性差异(P<0.05);对照组不良反应发生率为30.00%,观察组不良反应发生率为5.00%,经过对比,有显著性差异(P<0.05);观察组的肿瘤灭活率为92.86%,对照组的肿瘤灭活率为78.95%,经过对比,有显著性差异(P<0.05);治疗之后,两组患者的ALT和AST均高于治疗之前,观察组显而易见低于对照组,AFP水平低于治疗之前,并且观察组显而易见低于对照组,有显著性差异(P<0.05)。结论:对使用MR动态增强扫描减影技术来进行评估的肝癌患者运用RFA进行治疗,能够显著提高患者的临床治疗效果、降低不良反应发生率、提高肿瘤灭活的几率,以及能够明显改善患者肝功能和提高患者的生活质量与水平,值得在临床进行推广。 展开更多
关键词 MR动态增强扫描减影技术 肝癌 肝动脉栓塞化疗 射频消融术
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细节护理对肺癌CT介入射频消融术患者呼吸动力学、肺功能的影响
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作者 温慧敏 刘启仓 《卫生职业教育》 2024年第4期127-131,共5页
探讨细节护理对肺癌CT介入射频消融术患者呼吸动力学、肺功能的影响。实践证明,对肺癌CT介入射频消融术患者进行细节护理,护理效果理想,不仅有效改善了患者呼吸动力学和肺功能,同时改善了患者生活质量,降低了并发症发生率,提高了患者治... 探讨细节护理对肺癌CT介入射频消融术患者呼吸动力学、肺功能的影响。实践证明,对肺癌CT介入射频消融术患者进行细节护理,护理效果理想,不仅有效改善了患者呼吸动力学和肺功能,同时改善了患者生活质量,降低了并发症发生率,提高了患者治疗安全性。 展开更多
关键词 细节护理 肺癌 CT介入射频消融术 呼吸动力学 肺功能
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Recent Advances in Radio Frequency Ablation Techniques of Atrial Fibrillation
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作者 曾宝玉 白景峰 《Journal of Shanghai Jiaotong university(Science)》 EI 2014年第6期702-705,共4页
Multiple wavelet hypothesis and fibrillatory conduction are believed to be atrial fibrillation's pathogenesis. Radio frequency ablation(RFA) technique, a therapy for atrial fibrillation(AF), applies radio frequenc... Multiple wavelet hypothesis and fibrillatory conduction are believed to be atrial fibrillation's pathogenesis. Radio frequency ablation(RFA) technique, a therapy for atrial fibrillation(AF), applies radio frequency(RF) energy to targeted tissue to make it transmural. Research on AF ablation has already been conducted in China. Currently, there are single-electrode and dual-electrode ablation electrodes. It is discovered that the latter can reduce the treatment time and maintain the ablation shape of the tissue. Clinical application has shown that it has become the first-line treatment option for part of indications patients with AF. 展开更多
关键词 atrial fibrillation(AF) PATHOGENESIS ELECTRODE radio frequency ablation(RFA)
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超声造影对肝癌射频消融后继发性肝动脉-门静脉瘘的诊断价值 被引量:13
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作者 陈志辉 陈方红 +4 位作者 纪建松 齐信王 汤贞彦 林巧妹 周宁 《医学影像学杂志》 2019年第2期252-256,共5页
目的探讨肝细胞肝癌(HCC)射频消融(RFA)治疗后继发性肝动脉-门静脉瘘(APF)的超声造影(CEUS)灌注特征,并与异位复发HCC超声造影灌注特征进行比较。方法回顾性分析2010年01月~2016年10月我院就诊HCC患者RFA治疗后经数字减影血管造影(DSA... 目的探讨肝细胞肝癌(HCC)射频消融(RFA)治疗后继发性肝动脉-门静脉瘘(APF)的超声造影(CEUS)灌注特征,并与异位复发HCC超声造影灌注特征进行比较。方法回顾性分析2010年01月~2016年10月我院就诊HCC患者RFA治疗后经数字减影血管造影(DSA)确诊为继发性APF29例(共31个病灶),作为APF组;选取同时期经手术病理或临床确诊为异位复发HCC患者30例(共34个病灶),作为HCC组。比较两组患者CEUS灌注特征,包括动脉期增强形态,各时期增强水平。两组动脉期增强形态、各时期增强水平的比较采用Fisher精确检验。结果 APF组CEUS表现为动脉期楔形增强27个病灶(87.1%);HCC组CEUS表现为动脉期球形增强30个病灶(88.2%);两组患者CEUS在动脉期增强形态方面比较,差异具有统计学意义(P<0.05)。APF组门静脉期等增强28个病灶(90.3%),延迟期等增强25个病灶(80.6%);HCC组门静脉期低增强21个病灶(61.8%),延迟期低增强28个病灶(82.4%);两组比较差异均有统计学意义(P值均<0.05)。APF组动脉期高增强27个病灶(87.1%);HCC组动脉期高增强33个病灶(97.1%);两组比较差异无统计学意义(P>0.05)。结论 HCC患者RFA治疗后继发性APF的CEUS具有特征性表现,认识这一点有助于与异位复发HCC鉴别。 展开更多
关键词 射频消融 肝动脉-门静脉瘘 肝细胞肝癌 复发 数字减影血管造影 超声造影
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Role of diabetes mellitus on the recurrence rate of hepatocellular carcinomas after radiofrequency ablation in chronic hepatitis C patients
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作者 Abd Allah Ahmed El-Sawy Mohamed Abd El-Raouf Tawfik 《Hepatoma Research》 2015年第1期24-29,共6页
Aim:The aim was to assess the impact of hyperglycemia on the recurrence of hepatocellular carcinoma(HCC)as well as evaluate survival after curative ablation by radiofrequency.Methods:This study,which was conducted ret... Aim:The aim was to assess the impact of hyperglycemia on the recurrence of hepatocellular carcinoma(HCC)as well as evaluate survival after curative ablation by radiofrequency.Methods:This study,which was conducted retrospectively on 107 chronic hepatitis C(CHC)patients with 159 HCCs,was presented to the Hepatology Unit of Internal Medicine Department at Tanta University Hospitals.All lesions were curatively treated by radiofrequency ablation(RFA)and the surveillance of HCC recurrence was evaluated radiologically every 3 months for periods between 6 and 36 months.Of 107 subjects,70 were males and 37 were females,with mean age 50.4±9.4 years.All patients were divided according to their glycemic state into the following three groups:Group I,which included 37 type 2 diabetic patients,with adequate maintenance of blood glucose,has 52 HCCs;Group II,which included 25 type 2 diabetic patients with inadequate maintenance of blood glucose,has 43 HCCs;and Group III,which included 45 euglycemic non-diabetic patients,has 64 HCCs.Results:Our results showed that,there was signifi cant increase in recurrence rate in diabetic patients with inadequate maintenance of blood glucose(Group II)compared to those in Group I and Group III(P<0.0001).Interestingly,there was no signifi cant difference concerning HCC recurrence between diabetic patients with adequate maintenance of blood glucose(Group I)and non-diabetic euglycemic patients(Group III).Our results also identifi ed that,inadequate maintenance of blood glucose in diabetic patients was also a signifi cant predictor of poor survival.Conclusion:Inadequate maintenance of blood glucose in diabetic patients is a signifi cant risk factor for recurrence of HCC and for poor survival after curative RFA therapy in CHC patients. 展开更多
关键词 Hepatocellular carcinoma HYPERGLYCEMIA radio frequency ablation RECURRENCE SURVIVAL
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心房颤动病人射频消融术后“空白期”疾病感知与疾病进展恐惧的相关性研究
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作者 谷佳芸 丁云美 +2 位作者 卢晓虹 魏丽丽 崔岩 《全科护理》 2024年第7期1333-1337,共5页
目的:调查心房颤动病人射频消融术后“空白期”疾病感知及疾病进展恐惧现状,并探讨两者相关性。方法:采用便利抽样法于2022年4月-12月选取青岛市某三级甲等医院263例心房颤动病人作为调查对象,采用一般资料调查表、疾病进展恐惧简化量表... 目的:调查心房颤动病人射频消融术后“空白期”疾病感知及疾病进展恐惧现状,并探讨两者相关性。方法:采用便利抽样法于2022年4月-12月选取青岛市某三级甲等医院263例心房颤动病人作为调查对象,采用一般资料调查表、疾病进展恐惧简化量表(FoP-Q-SF)和简易疾病感知问卷(BIPQ)进行调查。结果:调查对象疾病进展恐惧总分为(30.71±8.81)分,疾病感知总分为(45.38±10.52)分,疾病感知与疾病进展恐惧呈正相关(r=0.423,P<0.01)。多元线性回归分析结果显示,年龄、婚姻状况、家庭人均月收入、合并症数、疾病感知是疾病进展恐惧的影响因素(P<0.05)。结论:心房颤动病人射频消融术后“空白期”的疾病感知水平越高,疾病进展恐惧程度越严重,医务工作者应多关注其疾病感知水平,并采取科学有效的方法减少负性疾病感知,从而减轻恐惧心理。 展开更多
关键词 心房颤动 射频消融术 空白期 疾病进展恐惧 护理
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射频治疗原发性肝癌前后可溶性白细胞介素-2受体和肿瘤坏死因子的变化 被引量:5
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作者 鲍恩武 马庆久 +1 位作者 赖大年 杜锡林 《肝胆外科杂志》 2003年第4期278-279,299,共3页
目的 研究原发性肝癌患者集束电极射频治疗前后血清可溶性白细胞介素 - 2受体 (SIL - 2 R)和肿瘤坏死因子(TNF)水平的变化及其临床意义。方法 采用 EL ISA双抗体夹心法 ,检测 4 2例原发性肝癌 (HCC)患者集束电极射频治疗前后血清 SIL ... 目的 研究原发性肝癌患者集束电极射频治疗前后血清可溶性白细胞介素 - 2受体 (SIL - 2 R)和肿瘤坏死因子(TNF)水平的变化及其临床意义。方法 采用 EL ISA双抗体夹心法 ,检测 4 2例原发性肝癌 (HCC)患者集束电极射频治疗前后血清 SIL - 2 R和 TNF的表达水平的改变 ,并与健康对照组比较 ;分析 SIL - 2 R和 TNF与 AFP的相关性。结果 治疗前 HCC患者血清 SIL - 2 R和 TNF水平明显高于对照组 (P<0 .0 1) ;集束电极射频治疗后 1周 ,血清 SIL - 2 R和 TNF水平无明显变化(P>0 .0 5 ) ;治疗后 2周 ,血清 SIL - 2 R和 TNF水平降低 ,与治疗前比较差异有显著性 (P<0 .0 1) ,但仍高于对照组 (P<0 .0 1) ;血清 SIL - 2 R/ TNF水平与 AFP水平不相关。结论 原发性肝癌患者集束电极射频治疗后血清中 SIL - 2 R和 TNF水平下降 ,机体免疫功能增强 ;并可作为早期诊断、病情判断。 展开更多
关键词 原发性肝癌 射频疗法 肿瘤坏死因子 可溶性白细胞介素-2受体
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心房颤动病人射频消融术后早期体位干预及下床活动的效果研究
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作者 赵彩艳 曾令霞 +3 位作者 强华 刘盈盈 李玲汝 刘辉 《全科护理》 2024年第5期929-932,共4页
目的:探讨术后早期体位干预与下床活动对行射频消融术的心房颤动病人舒适度及并发症的影响。方法:将2022年12月—2023年6月心内科收治的100例行射频消融术的心房颤动病人作为研究对象,采用抽签法分为试验组、对照组,每组50例。对照组按... 目的:探讨术后早期体位干预与下床活动对行射频消融术的心房颤动病人舒适度及并发症的影响。方法:将2022年12月—2023年6月心内科收治的100例行射频消融术的心房颤动病人作为研究对象,采用抽签法分为试验组、对照组,每组50例。对照组按常规护理方法,术肢制动6 h,卧床至术后12 h方可下床活动;试验组在此基础上增加早期体位干预并在术后8 h下床活动。比较两组病人术后舒适度及并发症发生率。结果:试验组较对照组术后舒适度评分提高(F=11.923,P=0.01),术后腰背疼痛程度减轻(Z=-3.455,P<0.001),术后尿潴留发生率降低(χ^(2)=4.332,P=0.037),术后肢体麻木发生率降低(χ^(2)=7.162,P=0.007),术后焦虑评分降低(F=9.174,P=0.003);两组病人穿刺部位出血和血肿的发生率比较差异无统计学意义(P>0.05)。结论:术后早期体位干预及下床活动能降低心房颤动病人射频消融术后由于制动和卧床引起的躯体不适的发生率,减轻病人焦虑,提高术后病人的舒适度,且不会增加穿刺部位出血、血肿发生率。 展开更多
关键词 心房颤动 射频消融术 活动时机 体位干预 舒适度
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