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radiofrequency ablations

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https://www.readbyqxmd.com/read/28320045/local-recurrence-after-laparoscopic-radiofrequency-ablation-of-malignant-liver-tumors-results-of-a-contemporary-series
#1
Hideo Takahashi, Muhammet Akyuz, Erol Aksoy, Koray Karabulut, Eren Berber
INTRODUCTION: The aims of this study were to determine the incidence of Local recurrence (LR) in patients at long-term follow-up after laparoscopic RFA (LRFA) and also to determine the risk factors for LR from a contemporary series. METHODS: Patients undergoing LRFA between 2005 and 2014 by a single surgeon were reviewed. Demographic and perioperative data were analyzed from a prospective database. RESULTS: LRFA was performed on 316 patients with 901 lesions...
March 20, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28318819/slow-pathway-radiofrequency-ablation-using-magnetic-navigation-a-description-of-technique-and-retrospective-case-analysis
#2
Abhishek Bhaskaran, Maha Albarri, Neil Ross, Sara Al Raisi, Rahul Samantha, Leonette Roode, Fazlur Nadri, Jeanette Ng, Stuart Thomas, Aravinda Thiagalingam, Pramesh Kovoor
BACKGROUND: The Magnetic Navigation System (MNS) catheter was shown to be stable in the presence of significant cardiac wall motion and delivered more effective lesions compared to manual control. This stability could potentially make AV junctional reentrant tachycardia (AVNRT) ablation safer. The aim of this study is to describe the method of mapping and ablation of AVNRT with MNS and 3-D electro-anatomical mapping system (CARTO, Biosense Webster, Diamond bar, CA, USA) anatomical mapping, with a view to improve the safety of ablation...
February 21, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28316173/-radiofrequency-septal-ablation-a-new-treatment-option-for-patients-with-hypertrophic-obstructive-cardiomyopathy
#3
R Chen, Z X Jiang, Q J Shan
No abstract text is available yet for this article.
March 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28315135/repeat-procedures-using-the-second-generation-cryoballoon-for-recurrence-of-atrial-fibrillation-after-initial-ablation-with-conventional-radiofrequency
#4
Valentina De Regibus, Saverio Iacopino, Juan-Pablo Abugattas, Giacomo Mugnai, Darragh Moran, Erwin Ströker, Hugo-Enrique Coutino, Ken Takarada, Rajin Choudhury, Gaetano Paparella, Vincent Umbrain, Pedro Brugada, Carlo de Asmundis, Gian-Battista Chierchia
PURPOSE: Pulmonary vein isolation is now widely accepted for the treatment of symptomatic atrial fibrillation refractory to antiarrhythmic drugs. However, multiple procedures are often required to significantly reduce atrial fibrillation (AF) recurrence. In the present study, we analyzed the acute results and the midterm clinical outcome of a second-generation cryoballoon ablation (CB-A) performed during repeat procedures for recurrence of AF after an initial procedure performed with conventional radiofrequency (RF)...
March 17, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28314875/safety-of-catheter-ablation-for-atrial-fibrillation-in-patients-with-intracranial-hemorrhage
#5
H Lin, S-N Li, R Bai, S-N Wen, N Liu, D-Y Long, R-H Yu, R-B Tang, C-H Sang, X Du, J-Z Dong, C-S Ma
BACKGROUND: The safety of anticoagulation and radiofrequency catheter ablation (RFCA) in patients with atrial fibrillation (AF) and a history of intracranial hemorrhage (ICH) remains unclear. We investigated the risks and benefits of this approach in AF patients with a history of ICH. PATIENTS AND METHODS: The ICH group included 45 AF patients with a history of ICH who underwent RFCA. Five of these patients were excluded because ICH occurred spontaneously after cerebral infarction...
March 17, 2017: Herz
https://www.readbyqxmd.com/read/28314642/hypotensive-effects-of-renal-denervation-in-spontaneously-hypertensive-rat-based-on-ultrasonic-contrast-imaging
#6
Ke Li, Jinwen Tian, Yuxiao Zhang, Qiao Xue, Caiyi Lu
BACKGROUND: Sympathetic nerves-fire rate is generally enhanced in some types of hypertension models. Renal sympathetic denervation(RSD) by the radiofrequency ablation was used to treat the hypertension has achieved curative effect.HTN-1 and HTN-2 trial reported catheter-based renal denervation may cause substantial and sustained blood-pressure reduction in patients with resistant hypertension. However, recent controlled HTN-3 trial questioned the BP lowering effect of Renal denervation treatment...
February 9, 2017: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
https://www.readbyqxmd.com/read/28314387/twin-pregnancy-complicated-by-esophageal-atresia-duodenal-atresia-gastric-perforation-and-hypoplastic-left-heart-structures-in-one-twin-a-case-report-and-review-of-the-literature
#7
Mohamad K Abou Chaar, Mariana L Meyers, Bethany D Tucker, Henry L Galan, Kenneth W Liechty, Timothy M Crombleholme, Ahmed I Marwan
BACKGROUND: The antenatal diagnosis of a combined esophageal atresia without tracheoesophageal fistula and duodenal atresia with or without gastric perforation is a rare occurrence. These diagnoses are difficult and can be suspected on ultrasound by nonspecific findings including a small stomach and polyhydramnios. Fetal magnetic resonance imaging adds significant anatomical detail and can aid in the diagnosis of these complicated cases. Upon an extensive literature review, there are no reports documenting these combined findings in a twin pregnancy...
March 18, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28306496/use-of-magnetic-resonance-imaging-guided-biopsy-of-a-vertebral-body-mass-to-diagnose-osteosarcoma-in-a-rottweiler
#8
Rebecca A Krimins, Jan Fritz, Larry A Gainsburg, Patrick R Gavin, Elizabeth A Ihms, David L Huso, Dara L Kraitchman
CASE DESCRIPTION A 9-year-old spayed female Rottweiler with hind limb ataxia was examined because of anorexia and an acute onset of hind limb paresis. CLINICAL FINDINGS Neurologic evaluation revealed hind limb ataxia and symmetric paraparesis with bilaterally abnormal hind limb postural reactions including hopping, hemiwalking, hemistanding, and delayed proprioception, which were suggestive of a lesion somewhere in the T3-L3 segment of the spinal cord. Thoracolumbar radiography revealed an abnormal radiopacity suggestive of a mass at T11...
April 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28303613/feasibility-of-liquid-nitrogen-cryotherapy-after-failed-radiofrequency-ablation-for-barrett-s-esophagus
#9
Arvind J Trindade, Sumant Inamdar, Shivangi Kothari, Joshua Berkowitz, Matthew McKinley, Vivek Kaul
OBJECTIVES: Radiofrequency ablation (RFA) for dysplastic Barrett's esophagus (BE) is highly effective. RFA failures are infrequent but can be a challenging cohort to manage. There is limited data on the feasibility of liquid nitrogen cryospray ablation for the complete eradication of dysplasia (CE-D) and/or intestinal metaplasia (CE-IM) after RFA has failed to achieve CE-IM in patients with dysplastic BE. METHODS: This is a retrospective review from two medical centers of prospectively maintained databases looking at patients that underwent liquid nitrogen cryospray ablation for refractory intestinal metaplasia post failed RFA...
March 16, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28303430/management-of-neuroendocrine-tumor-liver-metastases-long-term-outcomes-and-prognostic-factors-from-a-large-prospective-database
#10
Mark Fairweather, Richard Swanson, Jiping Wang, Lauren K Brais, Trevor Dutton, Matthew H Kulke, Thomas E Clancy
BACKGROUND: Liver-directed therapies have been used to treat neuroendocrine liver metastases (NELM) for both symptomatic improvement and tumor growth control. We reviewed our experience with NELM to investigate the outcomes of available treatment modalities and to identify prognostic factors for survival. METHODS: We identified all patients with NELM, who were managed at our institution, from a prospectively collected institutional database. Overall survival (OS) was determined for each treatment modality...
March 16, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28302592/spectral-detector-ct-for-cardiovascular-applications
#11
Prabhakar Rajiah, Suhny Abbara, Sandra Simon Halliburton
Spectral detector computed tomography (SDCT) is a novel technology that uses two layers of detectors to simultaneously collect low and high energy data. Spectral data is used to generate conventional polyenergetic images as well as dedicated spectral images including virtual monoenergetic and material composition (iodine-only, virtual unenhanced, effective atomic number) images. This paper provides an overview of SDCT technology and a description of some spectral image types. The potential utility of SDCT for cardiovascular imaging and the impact of this new technology on radiation and contrast dose are discussed through presentation of initial patient studies performed on a SDCT scanner...
March 17, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28302001/liver-transplantation-for-hepatocellular-carcinoma-beyond-the-milan-criteria
#12
Fulya Gunsar
Hepatocellular carcinoma is the most common primary liver malignancy. Liver transplantation has been a successful therapy for selected patients with hepatocellular carcinoma. Since 1996, Milan criteria have been universally recognized as the guidelines for selecting patients with hepatocellular carcinoma for orthotopic liver transplantation. However, the simple use of tumor size and number has been insufficient to indicate the biologic features of hepatocellular carcinoma and to predict the risk of tumor recurrence...
March 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28301729/atorvastatin-can-ameliorate-left-atrial-stunning-induced-by-radiofrequency-ablation-for-atrial-fibrillation
#13
Ruiqin Xie, Yingtao Yang, Wei Cui, Hongning Yin, Hongmei Zheng, Jidong Zhang, Ling You
The objective of this study was to study the functional changes of left atrium after radiofrequency ablation treatment for atrial fibrillation and the therapeutic effect of Atorvastatin. 58 patients undergoing radiofrequency ablation for atrial fibrillation were randomly divided into non-Atorvastatin group and Atorvastatin group. Patients in Atorvastatin group were treated with Atorvastatin 20mg po per night in addition to the conventional treatment of atrial fibrillation; patients in non-Atorvastatin group received conventional treatment of atrial fibrillation only...
March 16, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28298940/image-guided-thermal-ablation-of-benign-thyroid-nodules
#14
Anna Pisani Mainini, Cristian Monaco, Lorenzo Carlo Pescatori, Chiara De Angelis, Francesco Sardanelli, Luca Maria Sconfienza, Giovanni Mauri
Benign thyroid nodules are a common disease in the general population. Most often, they are completely asymptomatic and discovered occasionally during routine ultrasound examinations, and do not require any treatment. When thyroid nodules become symptomatic, surgical excision is still considered standard treatment. In the last few years, several experiences in the treatment of benign thyroid nodules through image-guided percutaneous thermal ablation have been reported with encouraging results, so that currently, these treatments are often proposed as first-choice options for patients with symptomatic benign thyroid nodules...
March 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28298182/electrocardiogram-his-bundle-potentials-can-be-recorded-noninvasively-beat-by-beat-on-surface-electrocardiogram
#15
Gaopin Wang, Renguang Liu, Qinghua Chang, Zhaolong Xu, Yingjie Zhang, Dianzhu Pan
BACKGROUND: The micro waveform of His bundle potential can't be recorded beat-to-beat on surface electrocardiogram yet. We have found that the micro-wavelets before QRS complex may be related to atrioventricular conduction system potentials. This study is to explore the possibility of His bundle potential can be noninvasively recorded on surface electrocardiogram. METHODS: We randomized 65 patients undergoing radiofrequency catheter ablation of paroxysmal superventricular tachycardia (exclude overt Wolff-Parkinson-White syndrome) to receive "conventional electrocardiogram" and "new electrocardiogram" before the procedure...
March 15, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28298026/prospective-comparison-of-long-term-pain-relief-rates-after-first-time-microvascular-decompression-and-stereotactic-radiosurgery-for-trigeminal-neuralgia
#16
Doris D Wang, Kunal P Raygor, Tene A Cage, Mariann M Ward, Sarah Westcott, Nicholas M Barbaro, Edward F Chang
OBJECTIVE Common surgical treatments for trigeminal neuralgia (TN) include microvascular decompression (MVD), stereotactic radiosurgery (SRS), and radiofrequency ablation (RFA). Although the efficacy of each procedure has been described, few studies have directly compared these treatment modalities on pain control for TN. Using a large prospective longitudinal database, the authors aimed to 1) directly compare long-term pain control rates for first-time surgical treatments for idiopathic TN, and 2) identify predictors of pain control...
February 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28297831/-comparison-of-ablation-of-left-sided-accessory-pathway-by-atrial-septal-and-retrograde-arterial-approach
#17
J G Zhu, Z Y Bao, X Gu
Objective: To compare the advantages and disadvantages of radiofrequency ablation of left-sided accessory pathways by via atrial septal approach with retrograde through aortic approach. Methods: A total of 184 patients of left-side accessory pathways were treated in Taizhou People's Hospital and the Subei People's Hospital from March 2012 to August 2015.A total of 103 cases were treated by aortic retrograde approach as through arterial group, 81 cases were treated by punctured atrial septal to left atrial for mapping and ablation as through atrial septal group...
March 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28297792/-advances-in-basic-and-clinical-research-on-hepatocellular-carcinoma-in-2016
#18
Z Z Dong, X D Zhu, Z Li, Y G Mao, Y L Chai, D F Yao, H C Sun, J Y Zhu, K S Ma
Hepatocellular carcinoma (HCC) is still one of common malignant cancers worldwide, with increasing incidence and mortality rates. Early diagnosis and effective treatment for HCC remain to be explored. This article introduces the research advances in the early specific diagnosis and effective therapies for HCC in 2016, such as molecular markers in the specific diagnosis and targeted therapy for HCC, main therapeutic regimens, robot-assisted liver resection, and no-touch radiofrequency ablation.
February 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28297442/correlation-of-quantitative-dynamic-contrast-enhanced-mri-with-microvascular-density-in-necrotic-partial-necrotic-and-viable-liver-tumors-in-a-rabbit-model
#19
Jungwon Moon, Jae-Hun Kim, Dongil Choi, Jehoon Yang, Min Woo Lee, Yoon-La Choi, Hyunchul Rhim Md
The purpose of this study was to examine the correlation of quantitative dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) with microvessel density (MVD) in necrotic, partial necrotic, and viable tumors using a rabbit VX2 liver tumor model. Nine rabbits were used for this study. The complete necrotic area (CNA), partial necrotic area (PNA), and viable tumor area (VTA) of liver tumors were experimentally induced by radiofrequency ablation (RFA). DCE-MRI data were processed based on the extended Kety model to estimate Ktrans,ve and vp parameters...
September 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28297123/embolization-of-watchman-device-following-a-hybrid-radiofrequency-ablation-of-atrial-fibrillation-and-watchman-implantation-procedure
#20
James Gabriels, Stuart Beldner, Mohammad Khan, Jonah Zeitlin, Ram Jadonath, Apoor Patel
A 24-year-old man with a history of type 1 diabetes mellitus, an ischemic left middle cerebral artery stroke and atrial flutter with a prior ablation was found to have paroxysmal atrial fibrillation (AF) on an implantable loop recorder. He was encouraged to continue anticoagulation with apixaban (CHA2 DS2 -VASc: 3). This article is protected by copyright. All rights reserved.
March 15, 2017: Journal of Cardiovascular Electrophysiology
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