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https://www.readbyqxmd.com/read/28110301/transcranial-measurement-of-cerebral-microembolic-signals-during-left-sided-catheter-ablation-with-the-use-of-different-approaches-the-potential-microembolic-risk-of-a-transseptal-approach
#1
Jin Iwasawa, Shinsuke Miyazaki, Takamitsu Takagi, Hiroshi Taniguchi, Hiroaki Nakamura, Hitoshi Hachiya, Yoshito Iesaka
AIMS: Subclinical brain damage due to microembolization could occur during catheter ablation procedures. We evaluated the microembolic signals (MESs) detected by transcranial Doppler during ablation of supraventricular tachycardias (SVTs) or idiopathic ventricular arrhythmias (VAs) with the use of different approaches. METHODS AND RESULTS: This study included 36 patients (23 men, 49 ± 21 years) who underwent catheter ablation of SVTs (n = 27) or idiopathic VAs (n = 9)...
January 20, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28109894/pregnancy-outcomes-following-direct-uterine-fibroid-thermal-ablation-a-review-of-the-literature
#2
REVIEW
Julia Keltz, Mark Levie, Scott Chudnoff
The objective of this review is to describe the reproductive outcomes of women after radiofrequency volumetric thermal ablation (RFVTA) of fibroids or magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU). This is a literature review of the current case reports of reproductive outcomes following direct fibroid thermal ablation at multiple academic and private centers throughout the world. A literature search was performed using PubMed and Medline. All publications that included data of women who underwent radiofrequency fibroid ablation or magnetic resonance-guided high-intensity focused ultrasound of fibroids and subsequently conceived were included...
January 18, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28109674/single-center-nonrandomized-clinical-trial-to-assess-the-safety-and-efficacy-of-irreversible-electroporation-ire-ablation-of-liver-tumors-in-humans-short-to-mid-term-results
#3
P Frühling, A Nilsson, F Duraj, U Haglund, A Norén
INTRODUCTION: A single-center nonrandomized clinical trial was performed to assess the safety and efficacy of IRE ablation of liver tumors in humans. METHODS: 38 malignant liver tumors on 30 patients were treated with IRE between September 2011 and September 2014. Treatment was with curative intent, and the diagnoses were colorectal cancer with liver metastases (CRLM) (n = 23), hepatocellular carcinoma (HCC) (n = 8) and other metastasis (n = 7). Patients were selected when surgery, radiofrequency ablation (RFA) or microwave ablation (MWA) was not an option, and when they met inclusion criteria (tumor size < 3 cm, 1-2 tumors)...
January 11, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28106147/prediction-of-very-late-arrhythmia-recurrence-after-radiofrequency-catheter-ablation-of-atrial-fibrillation-the-mb-later-clinical-score
#4
Nebojša Mujović, Milan Marinković, Nebojša Marković, Alena Shantsila, Gregory Y H Lip, Tatjana S Potpara
Reliable prediction of very late recurrence of atrial fibrillation (VLRAF) occuring >12 months after catheter ablation (CA) in apparently "cured" patients could optimize long-term follow-up and modify decision-making regarding the discontinuation of oral anticoagulant therapy. In a single-centre cohort of consecutive patients post radiofrequency AFCA, we retrospectively derived a novel score for VLRAF prediction. Of 133 consecutive post AFCA patients (mean age 56.9 ± 11.8 years, 63.9% male, 69.2% with paroxysmal AF) who were arrhythmia-free at 12 months (excluding 3-month "blanking period"), 20 patients expirienced a VLRAF during a 29...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28106018/cardioneuroablation-in-the-treatment-of-neurally-mediated-reflex-syncope-a-review-of-the-current-literature
#5
Tolga Aksu, Tümer Erdem Güler, Serdar Bozyel, Kazım Serhan Özcan, Kıvanç Yalın, Ferit Onur Mutluer
OBJECTIVE: An imbalance between parasympathetic and sympathetic tone is a main cause of neurally mediated reflex syncope (NMRS). These patients may be very symptomatic and the condition may require cardiac pacemaker implantation. Cardioneuroablation (CNA) is a relatively novel technique based on radiofrequency ablation of vagal ganglia that can be used in treatment of NMRS. The aim of this analysis was to compare potential role of CNA in patients with NMRS. METHODS: In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Statement, literature search was conducted using the keywords "cardioneuroablation," "vagal denervation," "reflex syncope," "vagal ablation," and "ganglionic plexi ablation...
December 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28105097/curative-effects-of-rf-combined-with-dsa-guided-ethanol-sclerotherapy-in-venous-malformations
#6
Xing Wang, Jian Meng, Jie Zhang, Ruihan Wu, Jianmin Gu, Cuiling Shao, Kun Han
The aim of the study was to investigate the clinical effect of radiofrequency (RF) ablation combined with digital subtraction angiography (DSA)-guided anhydrous ethanol injection sclerotherapy in the treatment of high-return flow venous malformation (VM). Forty-one patients who were diagnosed as high-return flow VM with clinical and radiographic evidence were divided into the observation group (n=19) and control group (n=22) by random number table. All the patients received DSA-guided anhydrous ethanol injection sclerotherapy while the patients in the observation group were given RF ablation in addition...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28104089/prediction-of-radiofrequency-ablation-lesion-formation-using-a-novel-temperature-sensing-technology-incorporated-in-a-force-sensing-catheter
#7
Guy Rozen, Leon Ptaszek, Israel Zilberman, Kevin Cordaro, E Kevin Heist, Christopher Beeckler, Andres Altmann, Zhang Ying, Zhenjiang Liu, Jeremy N Ruskin, Assaf Govari, Moussa Mansour
BACKGROUND: Real-time radiofrequency (RF) ablation lesion assessment is a major unmet need in cardiac electrophysiology. OBJECTIVE: The purpose of this study was to assess whether improved temperature measurement using a novel thermocoupling (TC) technology combined with information derived from impedance change, contact force (CF) sensing, and catheter orientation allows accurate real-time prediction of ablation lesion formation. METHODS: RF ablation lesions were delivered in the ventricles of 15 swine using a novel externally irrigated-tip catheter containing 6 miniature TC sensors in addition to force sensing technology...
February 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28104073/af-ablation-guided-by-spatiotemporal-electrogram-dispersion%C3%A2-without-pulmonary-vein-isolation-a-wholly-patient-tailored-approach
#8
Julien Seitz, Clément Bars, Guillaume Théodore, Sylvain Beurtheret, Nicolas Lellouche, Michel Bremondy, Ange Ferracci, Jacques Faure, Guillaume Penaranda, Masatoshi Yamazaki, Uma Mahesh R Avula, Laurence Curel, Sabrina Siame, Omer Berenfeld, André Pisapia, Jérôme Kalifa
BACKGROUND: The use of intracardiac electrograms to guide atrial fibrillation (AF) ablation has yielded conflicting results. OBJECTIVES: The authors evaluated the usefulness of spatiotemporal dispersion, a visually recognizable electric footprint of AF drivers, for the ablation of all forms of AF. METHODS: The authors prospectively enrolled 105 patients admitted for AF ablation. AF was sequentially mapped in both atria with a 20-pole PentaRay catheter...
January 24, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28104035/-application-value-of-laparoscopic-radiofrequency-ablation-for-specific-location-hepatocellular-carcinoma
#9
H D Shi, X J Shi, H X Ma, Y R Liang, L Zhou, Y Shi
Objective: To investigate the therapeutic efficacy and safety of laparoscopic radiofrequency ablation (LRFA) for specific-location hepatocellular carcinoma. Methods: To retrospectively analyze 496 patients with specific-location hepatocellular carcinoma treated with LRFA from January 2010 to January 2015 in our hospital. There was a total of 652 hepatic lesions with a mean diameter of (2.8±1.3) cm including 397 cases with single lesion and 99 cases with multiple lesions. The hepatic lesions were adjacent to major hepatic vessels, hepatic hilar region, diaphragmatic dome, gallbladder, or gastrointestinal tract and on the surface of the liver, respectively...
January 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28103953/microwave-ablation-is-as-effective-as-radiofrequency-ablation-for-very-early-stage-hepatocellular-carcinoma
#10
Yun Xu, Qiang Shen, Neng Wang, Pan-Pan Wu, Bin Huang, Ming Kuang, Guo-Jun Qian
BACKGROUND: Percutaneous radiofrequency ablation (RFA) is a first-line treatment for very-early-stage hepatocellular carcinoma (HCC), whereas the efficacy of percutaneous microwave ablation (MWA) for very-early-stage HCC remains unclear. The purpose of this study was to clarify this issue by comparing the safety and efficacy of percutaneous MWA with percutaneous RFA in treating very-early-stage HCC. METHODS: Clinical data of 460 patients who were diagnosed with very-early-stage HCC and treated with percutaneous MWA or RFA between January 2007 and July 2012 at the Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, in Shanghai, China were retrospectively analyzed...
January 19, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28103837/evaluation-of-the-ablation-margin-of-hepatocellular-carcinoma-using-ceus-ct-mr-image-fusion-in-a-phantom-model-and-in-patients
#11
Kai Li, Zhongzhen Su, Erjiao Xu, Qiannan Huang, Qingjing Zeng, Rongqin Zheng
BACKGROUND: To assess the accuracy of contrast-enhanced ultrasound (CEUS)-CT/MR image fusion in evaluating the radiofrequency ablative margin (AM) of hepatocellular carcinoma (HCC) based on a custom-made phantom model and in HCC patients. METHODS: Twenty-four phantoms were randomly divided into a complete ablation group (n = 6) and an incomplete ablation group (n = 18). After radiofrequency ablation (RFA), the AM was evaluated using ultrasound (US)-CT image fusion, and the results were compared with the AM results that were directly measured in a gross specimen...
January 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28101960/effects-of-antegrade-accessory-pathway-conduction-on-qrs-terminal-vector-in-patients-with-pre-excitation-syndrome
#12
Renguang Liu, Q I Chen, Yang Chen, Yingjie Zhang, Zhaolong Xu, Gaopin Wang
BACKGROUND: Ventricle pre-excitation through accessory pathway changes QRS initial vector, and manifests as delta wave on ECG. However, QRS terminal vector can also be affected. METHODS: 158 patients who had single accessory pathway (AP) with antegrade conduction capacity were included and divided into 2 groups according to the ECG with or without delta wave. In 150 patients had delta wave (overt AP group) on ECG, classical pre-excitation syndrome was diagnosed before radiofrequency ablation (RFCA)...
January 19, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28101217/safety-and-effectiveness-of-percutaneous-radiofrequency-ablation-in-early-stage-renal-cell-carcinoma
#13
Hang Liu, Changzhong Gao, Hualong Yu
The purpose of this study was to analyze the safety and effectiveness of percutaneous radiofrequency ablation (RFA) in early stage renal cell carcinoma. A total of 76 patients suffering from early stage renal cell carcinoma were selected and randomly assigned into the observation group (41 cases) or the control group (35 cases). Percutaneous RFA was used in the observation group, while retroperitoneoscopic radical operation of renal cell carcinoma was used in the control group, and the operative effects were compared...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28101203/short-term-effect-analysis-of-radiofrequency-ablation-combined-chemotherapy-on-middle-and-late-period-non-small-cell-lung-cancer
#14
Shuo Yu, Zhen Zhou Wu, Hong Tao Si, Sai Yang, Guang Mao Liu, Xiao Dong Zhao
In this study, we investigated the effect of radiofrequency ablation (RFA) combined chemotherapy on middle and late period non-small cell lung cancer (NSCLC). In total, 85 cases of middle and late period NSCLC patients were selected, and were randomly divided into the RFA combined chemotherapy group, RFA treatment group and chemotherapy group. After treatment, the three groups were followed up for computed tomography (CT) scan, and were analyzed for the effect of RFA combined chemotherapy on middle and late period NSCLC...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28100967/anesthetic-management-in-radiofrequency-catheter-ablation-of-ventricular-tachycardia
#15
REVIEW
Yi Deng, Payam S Naeini, Mehdi Razavi, Charles D Collard, Daniel A Tolpin, James M Anton
Radiofrequency catheter ablation is increasingly being used to treat patients who have ventricular tachycardia, and anesthesiologists frequently manage their perioperative care. This narrative review is intended to familiarize anesthesiologists with preprocedural, intraprocedural, and postprocedural implications of this ablation. Ventricular tachycardia typically arises from structural heart disease, most often from scar tissue after myocardial infarction. Many patients thus affected will benefit from radiofrequency catheter ablation in the electrophysiology laboratory to ablate the foci of arrhythmogenesis...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28099460/impact-of-radiofrequency-ablation-induced-glisson-s-capsule-associated-complications-in-patients-with-hepatocellular-carcinoma
#16
Toru Wakamatsu, Sadahisa Ogasawara, Tetsuhiro Chiba, Masayuki Yokoyama, Masanori Inoue, Naoya Kanogawa, Tomoko Saito, Eiichiro Suzuki, Yoshihiko Ooka, Akinobu Tawada, Osamu Yokosuka
BACKGROUND: Radiofrequency ablation (RFA) is commonly used to locally treat hepatocellular carcinoma (HCC). However, when tumors are close to the Glisson's capsule, RFA may induce injury in this region, complicating therapeutic efforts. We investigated the impact of RFA-induced Glisson's capsule-associated complications on liver function and prognosis of HCC patients. METHODS: We retrospectively reviewed our patient database and found 170 early-stage HCC patients treated via RFA from April 2004 to December 2012...
2017: PloS One
https://www.readbyqxmd.com/read/28099329/evaluation-of-efficacy-of-transcatheter-arterial-chemoembolization-combined-with-computed-tomography-guided-radiofrequency-ablation-for-hepatocellular-carcinoma-using-magnetic-resonance-diffusion-weighted-imaging-and-computed-tomography-perfusion-imaging-a
#17
Guo-Liang Shao, Jia-Ping Zheng, Li-Wen Guo, Yu-Tang Chen, Hui Zeng, Zheng Yao
BACKGROUND: The purpose of this study is to evaluate the efficacy of transcatheter arterial chemoembolization (TACE) combined with computed tomography-guided radiofrequency ablation (CT-RFA) in the treatment of hepatocellular carcinoma (HCC) using magnetic resonance diffusion weighted imaging (MR-DWI) and CT perfusion imaging (CT-PI). METHODS: From January 2008 to January 2014, a total of 522 HCC patients receiving TACE combined with CT-RFA were included in this study...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28097603/comprehensive-preclinical-evaluation-of-a-multi-physics-model-of-liver-tumor-radiofrequency-ablation
#18
Chloé Audigier, Tommaso Mansi, Hervé Delingette, Saikiran Rapaka, Tiziano Passerini, Viorel Mihalef, Marie-Pierre Jolly, Raoul Pop, Michele Diana, Luc Soler, Ali Kamen, Dorin Comaniciu, Nicholas Ayache
PURPOSE: We aim at developing a framework for the validation of a subject-specific multi-physics model of liver tumor radiofrequency ablation (RFA). METHODS: The RFA computation becomes subject specific after several levels of personalization: geometrical and biophysical (hemodynamics, heat transfer and an extended cellular necrosis model). We present a comprehensive experimental setup combining multimodal, pre- and postoperative anatomical and functional images, as well as the interventional monitoring of intra-operative signals: the temperature and delivered power...
January 17, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28096727/new-radiofrequency-device-to-reduce-bleeding-after-core-needle-biopsy-experimental-study-in-a-porcine-liver-model
#19
Sanghyeok Lim, Hyunchul Rhim, Min Woo Lee, Kyoung Doo Song, Tae Wook Kang, Young-Sun Kim, Hyo Keun Lim
OBJECTIVE: To evaluate the in vivo efficiency of the biopsy tract radiofrequency ablation for hemostasis after core biopsy of the liver in a porcine liver model, including situations with bleeding tendency and a larger (16-gauge) core needle. MATERIALS AND METHODS: A preliminary study was performed using one pig to determine optimal ablation parameters. For the main experiment, four pigs were assigned to different groups according to heparinization use and biopsy needle caliber...
January 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28095774/multiple-focal-and-macroreentrant-left-atrial-tachycardias-originating-from-a-spontaneous-scar-at-the-contiguous-aorta-left-atrium-area-in-a-patient-with-hypertrophic-cardiomyopathy-a-case-report
#20
Kyoichiro Yazaki, Yoichi Ajiro, Fumiaki Mori, Masahiro Watanabe, Kei Tsukamoto, Takashi Saito, Keiko Mizobuchi, Kazunori Iwade
BACKGROUND: Spontaneous scar-related left atrial tachycardia (AT) is a rare arrhythmia. We describe a patient with hypertrophic cardiomyopathy (HCM) who developed multiple, both focal and macroreentrant left ATs associated with a spontaneous scar located at the aorta-left atrium (LA) contiguous area. CASE PRESENTATION: A 65-year-old man with HCM complained of palpitations. Twelve-lead electrocardiogram showed narrow QRS tachycardia with 2:1 atrioventricular conduction...
January 17, 2017: BMC Cardiovascular Disorders
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