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radio-frequency ablation

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https://www.readbyqxmd.com/read/27909131/mri-appearances-of-atypical-cartilaginous-tumour-grade-i-chondrosarcoma-after-treatment-by-curettage-phenolisation-and-allografting-recommendations-for-follow-up
#1
S H M Verdegaal, C S van Rijswijk, H F C Brouwers, P D S Dijkstra, M A J van de Sande, P C W Hogendoorn, A H M Taminiau
AIMS: The purpose of this retrospective study was to differentiate between the MRI features of normal post-operative change and those of residual or recurrent disease after intralesional treatment of an atypical cartilage tumour (ACT)/grade I chondrosarcoma. PATIENTS AND METHODS: We reviewed the case notes, radiology and histology of 75 patients, who had been treated for an ACT/grade I chondrosarcoma by curettage, phenolisation and bone allografting between 1994 and 2005...
December 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27875060/open-versus-thoracoscopic-rfa-assisted-lung-resection
#2
Anna Poupalou, Michael Kontos, Evangelos Felekouras, Apostolos Papalois, Nikolaos Kavantzas, George Agrogiannis, Fatima Yagoubi, Periklis Tomos
The purpose of this study was to evaluate Radio Frequency Ablation (RFA)-assisted lung parenchymal transection through thoracotomy and thoracoscopy. Twelve domestic pigs underwent RFA-assisted lingulectomy: six through thoracotomy (group A), and six with thoracoscopy (group B). There was no mortality, no bleeding, or air leak intra- or postoperatively in either of the groups, and no conversion to open thoracotomy in group B. Group A had longer operating period and more pleural adhesions. A barotrauma, a skin burn, and a localized infection were observed in this group...
November 22, 2016: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/27846343/temperature-profile-of-ex-vivo-organs-during-radio-frequency-thermal-ablation-by-fiber-bragg-gratings
#3
Giovanna Palumbo, Agostino Iadicicco, Daniele Tosi, Paolo Verze, Nicola Carlomagno, Vincenzo Tammaro, Juliet Ippolito, Stefania Campopiano
No abstract text is available yet for this article.
November 1, 2016: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/27831864/3d-myocardial-elastography-in-vivo
#4
Clement Papadacci, Ethan A Bunting, Elaine Y Wan, Pierre Nauleau, Elisa E Konofagou
Strain evaluation is of major interest in clinical cardiology as it can quantify the cardiac function. Myocardial elastography, a radio-frequency (RF)-based cross-correlation method, has been developed to evaluate the local strain distribution in the heart in vivo. However, inhomogeneities such as RF ablation lesions or infarction require a three-dimensional approach to be measured accurately. In addition, acquisitions at high volume rate are essential to evaluate the cardiac strain in three dimensions. Conventional focused transmit schemes using 2D matrix arrays, trade off sufficient volume rate for beam density or sector size to image rapid moving structure such as the heart, which lowers accuracy and precision in the strain estimation...
November 1, 2016: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/27830452/fabrication-of-self-expandable-niti-thin-film-devices-with-micro-electrode-array-for-bioelectric-sensing-stimulation-and-ablation
#5
Christoph Bechtold, Rodrigo Lima de Miranda, Christoph Chluba, Eckhard Quandt
Self-expandable medical devices provide mechanical functionality at a specific location of the human body and are viable for minimal invasive procedures. Besides radiopaque markers and drug-eluting coatings, next generation self-expandable devices can be equipped with additional functionality, such as conductive and flexible electrodes, which enables chronic recording of bioelectrical signals, stimulating or ablating tissue. This promises new therapeutic options in various medical fields, among them in particular neuromodulation (e...
December 2016: Biomedical Microdevices
https://www.readbyqxmd.com/read/27793949/sorafenib-combined-with-radio-frequency-ablation-compared-with-sorafenib-alone-in-treatment-of-hepatocellular-carcinoma-invading-portal-vein-a-western-randomized-controlled-trial
#6
Antonio Giorgio, Maria Gabriella Merola, Luca Montesarchio, Francesca Merola, Bruno Santoro, Carmine Coppola, Pietro Gatti, Ferdinando Amendola, Antonella DI Sarno, Andrea Calvanese, Paolo Matteucci, Valentina Giorgio
AIM: To compare in a randomized controlled trial (RCT) 3-year survival of cirrhotic patients with hepatocellular carcinoma (HCC) accompanied by portal vein tumor thrombus (PVTT) treated with sorafenib plus percutaneous radiofrequency ablation (RFA) of both intraparenchymal HCC and PVTT (combination Group) or sorafenib alone (sorafenib-alone Group). PATIENTS AND METHODS: Ninety-nine consecutive Child A cirrhotics were randomized to receive RFA of both HCC and main portal vein tumor thrombus (MPVTT) plus sorafenib (n=49) or sorafenib alone (n=50)...
November 2016: Anticancer Research
https://www.readbyqxmd.com/read/27723374/comparison-of-clinical-efficacy-among-endoscopy-assisted-radio-frequency-ablation-extracorporeal-shockwaves-and-eccentric-exercises-in-treatment-of-insertional-achilles-tendinosis
#7
Min Wei, Yujie Liu, Zhongli Li, Zhigang Wang
BACKGROUND: We sought to compare clinical efficacy among endoscopy-assisted radio-frequency ablation under local anesthesia, extracorporeal shockwaves (ESWs), and eccentric exercises in treating insertional Achilles tendinosis. METHODS: In this retrospective study, 78 patients diagnosed as having unilateral insertional Achilles tendinosis were enrolled. These participants underwent endoscopy-assisted radio-frequency ablation, ESWs, and eccentric calf muscle exercises between March 1, 2006, and February 28, 2011...
October 10, 2016: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/27716829/analysis-of-microstructure-of-the-cardiac-conduction-system-based-on-three-dimensional-confocal-microscopy
#8
Daniel Romero, Oscar Camara, Frank Sachse, Rafael Sebastian
The specialised conducting tissues present in the ventricles are responsible for the fast distribution of the electrical impulse from the atrio-ventricular node to regions in the subendocardial myocardium. Characterisation of anatomical features of the specialised conducting tissues in the ventricles is highly challenging, in particular its most distal section, which is connected to the working myocardium via Purkinje-myocardial junctions. The goal of this work is to characterise the architecture of the distal section of the Purkinje network by differentiating Purkinje cells from surrounding tissue, performing a segmentation of Purkinje fibres at cellular scale, and mathematically describing its morphology and interconnections...
2016: PloS One
https://www.readbyqxmd.com/read/27706179/noninvasive-imaging-of-human-atrial-activation-during-atrial-flutter-and-normal-rhythm-from-body-surface-potential-maps
#9
Zhaoye Zhou, Qi Jin, Long Yu, Liqun Wu, Bin He
BACKGROUND: Knowledge of atrial electrophysiological properties is crucial for clinical intervention of atrial arrhythmias and the investigation of the underlying mechanism. This study aims to evaluate the feasibility of a novel noninvasive cardiac electrical imaging technique in imaging bi-atrial activation sequences from body surface potential maps (BSPMs). METHODS: The study includes 7 subjects, with 3 atrial flutter patients, and 4 healthy subjects with normal atrial activations...
2016: PloS One
https://www.readbyqxmd.com/read/27688037/hydrodisplacement-of-sural-nerve-for-safety-and-efficacy-of-endovenous-thermal-ablation-for-small-saphenous-vein-incompetence
#10
Omar Rodriguez-Acevedo, Kristen E Elstner, Kui Martinic, Aaron Zea, Jenny Diaz, Rodrigo T Martins, Fernando Arduini, Alexandra Hodgkinson, Nabeel Ibrahim
BACKGROUND: Endovenous radio frequency ablation for small saphenous vein incompetence by and large appears to be superior and safer than conventional open surgery. Small saphenous vein ablation from approximately mid-calf to the point proximally where the small saphenous vein dives into the popliteal fossa is considered to be safe, as the sural nerve is in most cases separated from this segment of the small saphenous vein by the deep fascia. The outcome of the distal incompetent small saphenous vein remains unclear...
September 29, 2016: Phlebology
https://www.readbyqxmd.com/read/27682030/clinical-anatomy-of-the-cavotricuspid-isthmus-and-terminal-crest
#11
Wiesława Klimek-Piotrowska, Mateusz K Hołda, Mateusz Koziej, Jakub Hołda, Katarzyna Piątek, Kamil Tyrak, Filip Bolechała
The aim of this study was to provide useful information about the cavotricuspid isthmus (CTI) and surrounding areas morphology, which may help to plan CTI radio-frequency ablation. We examined 140 autopsied human hearts from Caucasian individuals of both sexes (29.3% females) with a mean age of 49.1±17.2 years. We macroscopically investigated the lower part of the right atrium, the CTI, the inferior vena cava ostium and the terminal crest. The paraseptal isthmus (18.5±4.0 mm) was significantly shorter than the central isthmus (p<0...
2016: PloS One
https://www.readbyqxmd.com/read/27679246/combining-paracervical-block-with-a-complete-fundal-block-significantly-reduces-patients-perception-of-pain-during-radio-frequency-endometrial-ablation-in-an-office-setting
#12
H Skensved
No abstract text is available yet for this article.
November 2015: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/27635672/treatment-of-symptomatic-neuroendocrine-tumor-syndromes-recent-advances-and-controversies
#13
Tetsuhide Ito, Lingaku Lee, Robert T Jensen
INTRODUCTION: Neuroendocrine tumors(NETs), once thought rare, are increasing in frequency in most countries and receiving increasing-attention. NETs present two-treatment problems. A proportion is aggressive and a proportion has a functional, hormone-excess-state(F-NET) each of which, must be treated. Recently, there have been many advances, well-covered in reviews/consensus papers on imaging-NETs; new, novel anti-tumor treatments and understanding their pathogenesis. However, little attention has been paid to advances in the treatment of the hormone-excess-state...
September 16, 2016: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/27628611/investigation-of-a-correlation-between-thoracic-vertebra-hyperplasia-and-relapse-in-paroxysmal-atrial-fibrillation-patients-following-extended-pulmonary-vein-isolation
#14
Tadashi Hashida, Koichiro Yoshioka, Shigetaka Kanda, Daisuke Fujibayashi, Mari Amino, Yuji Ikari
Pulmonary vein isolation (PVI) with radio-frequency catheter ablation (RFCA) is effective therapy for the patients with paroxysmal atrial fibrillation (pAF). However, it is not easy to predict relapse of pAF. Approximately 70% pAF patients were maintained sinus rhythm for 1 year after PVI in Japan. In this study, all of the cases were underwent chest computed tomography (CT) to check for the morphology and positional relationship of the left atrium. We detected relapse cases that exhibited spur formation in the thoracic vertebrae...
2016: Tokai Journal of Experimental and Clinical Medicine
https://www.readbyqxmd.com/read/27600101/effect-of-thermal-dose-on-heat-shock-protein-expression-after-radio-frequency-ablation-with-and-without-adjuvant-nanoparticle-chemotherapies
#15
Marwan Moussa, S Nahum Goldberg, Gaurav Kumar, Tatyana Levchenko, Vladimir Torchilin, Muneeb Ahmed
PURPOSE: The aim of this study was to evaluate the effect of different radio-frequency ablation (RFA) thermal doses on coagulation and heat shock protein (HSP) response with and without adjuvant nanotherapies. MATERIALS AND METHODS: First, Fischer rats were assigned to nine different thermal doses of hepatic RFA (50-90 °C, 2-20 min, three per group) or no treatment (n = 3). Next, five of these RF thermal doses were combined with liposomal-doxorubicin (Lipo-Dox, 1 mg intravenously) in R3230 breast tumours, or no tumour treatment (five per group)...
December 2016: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/27570500/minimally-invasive-liver-surgery-for-hepatic-colorectal-metastases
#16
Ibrahim Nassour, Patricio M Polanco
Minimally invasive surgery has been cautiously introduced in surgical oncology over the last two decades due to a concern of compromised oncological outcomes. Recently, it has been adopted in liver surgery for colorectal metastases. Colorectal cancer is a major cause of cancer-related death in the USA. In addition, liver metastasis is the most common site of distant disease and its resection improves survival. While open resection was the standard of care, laparoscopic liver surgery has become the standard of care for minor liver resections...
April 2016: Current Colorectal Cancer Reports
https://www.readbyqxmd.com/read/27525037/radio-frequency-ablation-based-studies-on-vx2rabbit-models-for-hcc-treatment
#17
REVIEW
Sabrina Bimonte, Maddalena Leongito, Mauro Piccirillo, Cristina de Angelis, Claudia Pivonello, Vincenza Granata, Francesco Izzo
Hepatocellular carcinoma (HCC) is the fifth most frequent cancer worldwide with high morbidity, mortality and increasing incidence. It is of note that the main curative therapies for HCC are hepatic resection and transplantation although the majority of patients at the time of presentation are not eligible for resection or orthotopic liver transplantation (OLT) due to the underlying cirrhosis. Currently, a variety of loco-regional therapies, including radiofrequency ablation (RFA), percutaneous ethanol injection (PEI), microwave coagulation therapy (MCT), transarterial chemoembolization (TACE) and others, have been developed as alternative treatment options for HCC...
2016: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/27500145/high-intensity-focused-ultrasound-hifu-applied-to-hepato-bilio-pancreatic-and-the-digestive-system-current-state-of-the-art-and-future-perspectives
#18
REVIEW
Michele Diana, Luigi Schiraldi, Yu-Yin Liu, Riccardo Memeo, Didier Mutter, Patrick Pessaux, Jacques Marescaux
BACKGROUND: High intensity focused ultrasound (HIFU) is emerging as a valid minimally-invasive image-guided treatment of malignancies. We aimed to review to current state of the art of HIFU therapy applied to the digestive system and discuss some promising avenues of the technology. METHODS: Pertinent studies were identified through PubMed and Embase search engines using the following keywords, combined in different ways: HIFU, esophagus, stomach, liver, pancreas, gallbladder, colon, rectum, and cancer...
August 2016: Hepatobiliary Surgery and Nutrition
https://www.readbyqxmd.com/read/27487751/cardiac-radiofrequency-ablation-a-clinical-update-for-nurses
#19
Bridget Shoulders, Jillian Mauriello, Tamika Shellman, Corrinne Follett
The field of electrophysiology (EP) has rapidly evolved from a focus on diagnostic procedures to an emphasis on interventions. Many cardiac arrhythmias traditionally treated with antiarrhythmic agents, cardioversion, or cardiac surgery are now routinely cured with cardiac ablation. To optimally manage the care of cardiac ablation patients, it is essential that nurses have an understanding of the EP procedures and related nursing implications. There are extensive evidence-based resources available in the medical literature; however, there are limited publications geared toward nurses caring for cardiac ablation patients...
September 2016: Dimensions of Critical Care Nursing: DCCN
https://www.readbyqxmd.com/read/27471100/interactive-training-system-for-interventional-electrocardiology-procedures
#20
Hugo Talbot, Federico Spadoni, Christian Duriez, Maxime Sermesant, Mark O'Neill, Pierre Jaïs, Stéphane Cotin, Hervé Delingette
Recent progress in cardiac catheterization and devices has allowed the development of new therapies for severe cardiac diseases like arrhythmias and heart failure. The skills required for such interventions are very challenging to learn, and are typically acquired over several years. Virtual reality simulators may reduce this burden by allowing trainees to practice such procedures without risk to patients. In this paper, we propose the first training system dedicated to cardiac electrophysiology, including pacing and ablation procedures...
July 9, 2016: Medical Image Analysis
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