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Radiofrequency ablation

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https://www.readbyqxmd.com/read/29351156/liquid-nitrogen-spray-cryotherapy-is-associated-with-less-postprocedural-pain-than-radiofrequency-ablation-in-barrett-s-esophagus-a-multicenter-prospective-study
#1
Sanjeev S Solomon, Shivangi Kothari, George B Smallfield, Sumant Inamdar, Peter Stein, Viviana A Rodriguez, Adam P Sima, Krystle Bittner, Alvin M Zfass, Vivek Kaul, Arvind J Trindade
GOALS AND BACKGROUND: Two common endoscopic therapies for eradication of dysplastic Barrett's esophagus are radiofrequency ablation (RFA) and liquid nitrogen spray cryotherapy (LNC). There is no data comparing postprocedural pain. This study aimed to compare the incidence of postprocedural pain between the 2 ablation modalities. METHODS: This is a multicenter prospective study in which pain intensity scores and the presence of dysphagia were assessed immediately before and after treatment, 48 hours posttreatment and at 3 weeks posttreatment using validated instruments...
January 18, 2018: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29350646/radiofrequency-ablation-of-osteoid-osteoma
#2
Massimo De Filippo, Umberto Russo, Vito Roberto Papapietro, Francesco Ceccarelli, Francesco Pogliacomi, Enrico Vaienti, Claudia Piccolo, Raffaella Capasso, Assunta Sica, Fabrizio Cioce, Mattia Carbone, Federico Bruno, Carlo Masciocchi, Vittorio Miele
Osteoid osteoma is a benign bone neoplasm with a reported incidence of 2-3% among all bone primary tumors. Although it is a small and benign lesion, it is often cause of patient complaint and discomfort. It is generally characterized by a long lasting, unremitting pain that typically exacerbates at night, often leading to sleep deprivation and functional limitation of the skeletal segment involved, with a significant reduction of patient daily life activities and consequent worsening of the overall quality of life...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350539/effectiveness-and-safety-of-ct-guided-percutaneous-radiofrequency-ablation-of-adrenal-metastases
#3
Kang Zhou, Jie Pan, Ning Yang, Hai-Feng Shi, Jian Cao, Yu-Mei Li, Hong-Zhi Zhang, Ke-Fei Wang, Shao-Hui Chen
OBJECTIVE: The imaging-guided percutaneous radiofrequency (RF) ablation of adrenal metastases is a relatively new treatment procedure, compared to the more widespread application of the technique for the treatment of liver and renal cancers, the present study aims to evaluate the safety and efficacy of the computed tomography (CT)-guided percutaneous radiofrequency ablation of adrenal metastases in a cohort of patients. METHODS: Thirty-three patients with 38 adrenal metastases who received percutaneous CT-guided radiofrequency ablation between 2012 to 2015 were retrospectively reviewed...
January 19, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29347855/low-power-bipolar-radiofrequency-ablation-and-vertebral-augmentation-for-the-palliative-treatment-of-spinal-malignancies
#4
Roberto Luigi Cazzato, Julien Garnon, Jean Caudrelier, Pramod Prabhakar Rao, Guillaume Koch, Afshin Gangi
AIM: To investigate the analgesic properties and the safety of low power bipolar radiofrequency ablation (RFA) performed with internally cooled electrodes and vertebral augmentation for the treatment of painful spinal malignancies. MATERIALS AND METHODS: Consent was waived for retrospective study participation. Review of electronic records identified 11 consecutive patients (6 females; 5 males; mean age 61.3 ± 11.6 years) with one-index painful spinal tumour, who were treated between June 2016 and October 2017 with bipolar RFA and vertebral augmentation...
January 18, 2018: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29345381/durable-lesion-formation-while-avoiding-esophageal-injury-during-ablation-of-atrial-fibrillation-lessons-learned-from-late-gadolinium-mr-imaging
#5
Mihail G Chelu, Alan K Morris, Eugene G Kholmovski, Jordan B King, Gagandeep Kaur, Michelle A Silver, Joshua E Cates, Frederick T Han, Nassir F Marrouche
INTRODUCTION: Adequate catheter/atrial tissue contact is critical for lesion formation during radiofrequency (RF) ablation of atrial fibrillation (AF). Late gadolinium enhancement magnetic resonance imaging (LGE-MRI) is a unique tool for the evaluation of lesion formation and detection of acute esophageal injury. METHODS: LGE-MRIs were obtained prior, within 24 hours of, and at 115±62 days after first AF ablation in 36 patients. The Visitag module of CARTO3 was used to collect contact force (CF) and duration from a CF sensing ablation catheter for each registered ablation point...
January 18, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29344133/improved-treatment-of-early-small-hepatocellular-carcinoma-using-sorafenib-in-combination-with-radiofrequency-ablation
#6
Quanyou Gong, Zhaoxia Qin, Fangli Hou
Small hepatocellular carcinoma is an important leading cause of death amongst cancer patients, our study was designed in order to test the hypothesis that radiofrequency ablation (RFA) combined with a chemotherapeutic drug would improve the outcome for patients. Two groups of patients presenting early small hepatocellular carcinoma were treated with either conventional RFA alone (50 individuals in the control group), or with a combination of RFA and oral sorafenib (40 individuals in an observation group). Individual clinical and laboratory evaluations were done during an average follow-up time of 35 months, and all the data recorded was used to compare results of both treatment approaches...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29342992/-radiofrequency-catheter-ablation-of-premature-ventricular-contractions-in-children-under-carto3-system-a-retrospective-study-from-one-single-center
#7
W Ji, J J Wu, Y J Qian, Y W Chen, L J Fu, J Shen, F Li
Objective: To evaluate the clinical effect and summarize the experience of radiofrequency catheter ablation (RFCA) for children suffered from premature ventricular contractions (PVCs). Methods: This retrospective study was conducted by descriptive analysis. A total of 108 cases with frequent PVCs from Shanghai Children's Medical Center were treated with RFCA under the guidance of CARTO3 system from January 2011 to December 2016. The immediate success rate of the procedure, the recurrence rate and the perioperative complications were summarized...
January 2, 2018: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29342492/efficacy-and-safety-of-endoscopic-radiofrequency-ablation-for-unresectable-extrahepatic-cholangiocarcinoma-a-randomized-trial
#8
Jianfeng Yang, Jing Wang, Haibin Zhou, Yifeng Zhou, Yang Wang, Hangbin Jin, Qifeng Lou, Xiaofeng Zhang
BACKGROUND:  Endoscopic placement of biliary stents to relieve jaundice is the main palliative treatment for unresectable extrahepatic cholangiocarcinoma. Endoscopic biliary radiofrequency ablation (RFA) has been reported to prolong stent patency, which may be beneficial in improving patient survival. However, available evidence is still insufficient, as most reported studies are retrospective case series. The aim of this study was to explore the clinical effect and safety of RFA in patients with unresectable extrahepatic cholangiocarcinoma...
January 17, 2018: Endoscopy
https://www.readbyqxmd.com/read/29342456/correlation-between-resection-margin-and-disease-recurrence-with-a-restricted-cubic-spline-model-in-patients-with-resected-hepatocellular-carcinoma
#9
Woohyung Lee, Ho-Seong Han, Soyeon Ahn, Yoo-Seok Yoon, Jai Young Cho, YoungRok Choi
BACKGROUND: The relationship between resection margin (RM) and recurrence of resected hepatocellular carcinoma (HCC) is unclear. METHODS: We reviewed clinical data for 419 patients with HCC. The oncologic outcomes were compared between 2 groups of patients classified according to the inflexion point of the restricted cubic spline plot. RESULTS: The patients were divided according to an RM of <1 cm (n = 233; narrow RM group) or ≥1 cm (n = 186; wide RM group)...
January 17, 2018: Digestive Surgery
https://www.readbyqxmd.com/read/29339752/prognostic-performance-of-ten-liver-function-models-in-patients-with-hepatocellular-carcinoma-undergoing-radiofrequency-ablation
#10
Shu-Yein Ho, Po-Hong Liu, Chia-Yang Hsu, Yi-You Chiou, Chien-Wei Su, Yun-Hsuan Lee, Yi-Hsiang Huang, Fa-Yauh Lee, Ming-Chih Hou, Teh-Ia Huo
Liver functional capacity is a crucial survival determinant for hepatocellular carcinoma (HCC). Noninvasive models were proposed to assess hepatic reserve, but their performance in outcome prediction is unclear. We aimed to investigate 10 currently used liver function models in HCC patients undergoing radiofrequency ablation (RFA). A total 499 HCC patients were prospectively identified. Homogeneity and corrected Akaike information criteria (AICc) were compared. Cox proportional hazards model was used to identify independent survival predictors...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29337089/thermal-field-distributions-of-ablative-experiments-using-cyst-mimicking-phantoms-comparison-of-microwave-and-radiofrequency-ablation
#11
Xiao-Wen Huang, Fang Nie, Zeng-Cheng Wa, Hang-Tong Hu, Qing-Xiu Huang, Huan-Ling Guo, Qiao Zheng, Xiao-Yan Xie, Wei Wang, Ming-De Lu
RATIONALE AND OBJECTIVES: The objective of this study was to explore the thermal field distribution of cystic lesions undergoing microwave ablation (MWA) and radiofrequency ablation (RFA) using in vitro phantoms. MATERIALS AND METHODS: Cyst-mimicking lesions filled with sodium chloride (NaCl) solution in acrylamide phantoms were treated with MWA and RFA in vitro. The radiofrequency electrodes or MWA antennas were implanted in the centers of the artificial cystic lesions...
January 11, 2018: Academic Radiology
https://www.readbyqxmd.com/read/29336937/the-combination-of-stereo-eeg-and-radiofrequency-ablation
#12
Hélène Catenoix, Pierre Bourdillon, Marc Guénot, Jean Isnard
SEEG-guided radiofrequency thermocoagulation (SEEG-guided RFTC), a combination of Stereo-electroencephalography (SEEG) and radiofrequency thermocoagulation (RFTC), has been performed since 2001 in drug resistant epilepsy. The interest of this procedure is to aim at total or partial destruction of the epileptogenic zone, as tailored in each individual patient by the SEEG exploration. These multiple SEEG-guided RFTC lesions of epileptic foci are produced by using a radiofrequency generator connected to the electrode contacts...
January 9, 2018: Epilepsy Research
https://www.readbyqxmd.com/read/29336757/radiofrequency-thermal-ablation-heat-energy-transfer-in-an-ex-vivo-model
#13
Shivani Thakur, Sandi Lavito, Elizabeth Grobner, Mark Grobner
Little work has been done to consider the temperature changes and energy transfer that occur in the tissue outside the vein with ultrasound-guided vein ablation therapy. In this experiment, a Ex-Vivo model of the human calf was used to analyze heat transfer and energy degradation in tissue surrounding the vein during endovascular radiofrequency ablation (RFA). A clinical vein ablation protocol was used to determine the tissue temperature distribution in 10 per cent agar gel. Heat energy from the radiofrequency catheter was measured for 140 seconds at fixed points by four thermometer probes placed equidistant radially at 0...
December 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/29335429/rfa-guardian-comprehensive-simulation-of-radiofrequency-ablation-treatment-of-liver-tumors
#14
Philip Voglreiter, Panchatcharam Mariappan, Mika Pollari, Ronan Flanagan, Roberto Blanco Sequeiros, Rupert Horst Portugaller, Jurgen Fütterer, Dieter Schmalstieg, Marina Kolesnik, Michael Moche
The RFA Guardian is a comprehensive application for high-performance patient-specific simulation of radiofrequency ablation of liver tumors. We address a wide range of usage scenarios. These include pre-interventional planning, sampling of the parameter space for uncertainty estimation, treatment evaluation and, in the worst case, failure analysis. The RFA Guardian is the first of its kind that exhibits sufficient performance for simulating treatment outcomes during the intervention. We achieve this by combining a large number of high-performance image processing, biomechanical simulation and visualization techniques into a generalized technical workflow...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29334130/radiofrequency-ablation-combined-with-multiple-biliary-metal-stent-placement-using-short-type-single-balloon-endoscope-in-patients-with-surgically-altered-anatomy
#15
Tadahisa Inoue, Kiyoaki Ito, Masashi Yoneda
Placement of multiple metal stents (MS) for the management of high-grade malignant hilar biliary obstruction (MHBO) is useful,1,2 and biliary radiofrequency ablation (RFA) has been suggested to improve stent patency.3,4 However, to our knowledge, there are no reports of RFA procedures performed using a single-balloon endoscope (SBE) in patients with surgically altered anatomy. Here, we report a successful case of RFA combined with multiple MS placement using SBE in Roux-en-Y gastrectomy. This article is protected by copyright...
January 15, 2018: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/29333794/ablation-induced-change-in-the-course-of-fascicular-tachycardia
#16
Avishag Laish-Farkash, Avi Sabbag, Michael Glikson, Aharon Glick, Vladimir Khalameizer, Amos Katz, Yoav Michowitz
BACKGROUND: Multiform fascicular tachycardia (FT) was recently described as a ventricular tachycardia (VT) that has a reentrant mechanism using multiple fascicular branches and produces alternate fascicular VT forms. Ablating the respective fascicle may cause a change in the reentrant circuit resulting in a change in morphology. Ablation of the septal fascicle is crucial for successful treatment. OBJECTIVES: To describe four cases of FT in which ablation induced a change in QRS morphologies and aggravated clinical course...
January 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29332348/sorafenib-combined-with-radiofrequency-ablation-as-treatment-for-patients-with-hepatocellular-carcinoma-a-systematic-review-and-meta-analysis
#17
Lin Chen, Xingming Ma, Xin Liu, Xiaomeng Cui
PURPOSE: To evaluate the safety and efficacy of a combination of sorafenib and radiofrequency ablation (RFA) in patients with hepatocellular carcinoma (HCC). METHODS: A systematic literature search was conducted using PubMed, Embase, the Cochrane Library, China National Knowledge Infrastructure (CNKI), China Biology Medicine disc (CBMdisc), WanFang Database, for all years up to January 2017. Pooled analyses of overall survival (OS), tumor- free survival, recurrence rates and adverse events were performed...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29332081/radiosurgical-subthalamic-nucleotomy
#18
Jean Régis, Romain Carron, Tatiana Witjas
Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is the reference technique in Parkinson's disease (PD) at different stages of complications. Some patients cannot afford DBS due to anticoagulation or comorbidities or due to pecuniary reasons. Radiosurgery is a minimally invasive stereotactic technique, with no craniotomy and subsequently no risk of bleeding or infection. Its good safety efficacy profile has been established in the treatment of tremor, and the postoperative care issues are simple with a much shorter hospital stay (mean 48 h)...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29330130/perioperative-electrophysiology-study-in-tetralogy-of-fallot-patients-undergoing-pulmonary-valve-replacement-will-identify-those-at-high-risk-for-subsequent-ventricular-tachycardia
#19
Amneet Sandhu, Emily Ruckdeschel, William H Sauer, Kathryn K Collins, Joseph Kay, Amber Khanna, James Jaggers, David Campbell, Max Mitchell, Duy T Nguyen
BACKGROUND: Ventricular tachyarrhythmias (VAs) are the most common cause of death in patients with repaired Tetralogy of Fallot (TOF), but predicting those at risk remains a challenge. Electrophysiological study (EPS) has been proposed to risk stratify TOF patients. OBJECTIVE: We sought to evaluate a perioperative EPS-guided approach to risk stratify TOF patients undergoing PVR and guide concomitant cryoablation. METHODS: A prospective cohort study of TOF patients undergoing EPS at time of PVR from 2006-present was conducted at 2 centers...
January 9, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29329442/conventional-radiofrequency-thermocoagulation-vs-pulsed-radiofrequency-neuromodulation-of-ganglion-impar-in-chronic-perineal-pain-of-nononcological-origin
#20
Hammad Usmani, G P Dureja, Roshan Andleeb, Nazia Tauheed, Naiyer Asif
Background: Chronic nononcological perineal pain has been effectively managed by ganglion Impar block. Chemical neurolysis, cryoablation, and radiofrequency ablation have been the accepted methods of blockade. Recently, pulsed radiofrequency, a novel variant of conventional radiofrequency, has been used for this purpose. Study Design: This was a prospective, randomized, double-blind study. Setting: Two different interventional pain management centers in India...
January 10, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
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