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Radiofrequency lesioning

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https://www.readbyqxmd.com/read/28934795/comparisons-of-lesion-volumes-and-shapes-produced-by-a-radiofrequency-system-with-a-cooled-a-protruding-or-a-monopolar-probe
#1
David L Cedeno, Alejandro Vallejo, Courtney A Kelley, Dana M Tilley, Nitesh Kumar
BACKGROUND: Radiofrequency (RF) ablation for denervation has been utilized for decades in chronic pain management. This relies on the proper targeting of the affected nerve which may be obtained by creating an ablation lesion with a shape and volume that optimizes targeting. Various systems designed to improve lesion size are available. These include cooling the active tip (cooled-RF) and protruding the RF electrode outside the active tip (PERF). OBJECTIVES: This study compares lesion volumes of 3 commercially available RF systems: cooled-RF, "V" shaped active cannula and protruding electrode (18 g and 20 g), and monopolar RF (MRF; 16 g, 18 g, and 20 g)...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28932570/the-technique-of-endoscopic-airway-tumor-treatment
#2
REVIEW
Simone Scarlata, Lello Fuso, Gabriele Lucantoni, Francesco Varone, Daniele Magnini, Raffaele Antonelli Incalzi, Gianni Galluccio
More than half of primary lung cancers are not resectable at diagnosis and 40% of deaths may be secondary to loco-regional disease. Many of these patients suffer from symptoms related to airways obstruction. Indications for therapeutic endoscopic treatment are palliation of dyspnea and other obstructive symptoms in advanced cancerous lesions and cure of early lung cancer. Bronchoscopic management is also indicated for all those patients suffering from benign or minimally invasive neoplasm who are not suitable for surgery due to their clinical conditions...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28926900/-the-combination-of-percutaneous-iohexol-ethanol-injection-with-radiofrequency-ablation-for-the-treatment-of-primary-liver-cancer-in-high-risk-locations
#3
W Sun, X Y Ding, J L Chen, W D Li, X Y Wang, X D Guo, Y J Shen, S S Sun
Objective: To investigate the safety and efficacy of radiofrequency ablation (RFA) with percutaneous iohexol-ethanol injection (PIEI), compared with RFA plus transcatheter arterial chemoembolization (TACE) for patients with primary liver cancer(PLC)in high-risk locations. Methods: From January 2012 to December 2014, 54 patients with PLC in high-risk locations were enrolled. They were divided into Group A (RFA combined with PIEI) and Group B (RFA plus TACE). The efficacy and adverse events were assessed. Results: 54 patients had 74 lesions in high-risk locations...
September 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28926630/efficacy-of-pentavalent-antimoniate-intralesional-infiltration-therapy-for-cutaneous-leishmaniasis-a-systematic-review
#4
Nayara Castelano Brito, Ana Rabello, Gláucia Fernandes Cota
BACKGROUND: The mainstays of cutaneous leishmaniasis (CL) treatment, in several world regions, are pentavalent antimony (Sbv) compounds administered parenterally, despite their recognized toxicity, which requires frequent laboratory monitoring and complicates their use in areas with scarce infrastructure. As result of these drawbacks, the WHO Expert Committee on leishmaniasis has expanded the recommendations for the use of local therapies, including Sbv intralesional infiltration (IL-Sbv), as CL therapy alternatives even in the New World...
2017: PloS One
https://www.readbyqxmd.com/read/28922117/magnetic-resonance-mediated-radiofrequency-ablation
#5
Yik-Kiong Hue, Alexander R Guimaraes, Ouri Cohen, Erez Nevo, Abraham Roth, Jerome L Ackerman, Jerome L Ackerman
OBJECTIVE: To introduce magnetic resonance mediated radiofrequency ablation (MR-RFA), in which the MRI scanner uniquely serves both diagnostic and therapeutic roles. In MR-RFA scanner-induced RF heating is channeled to the ablation site via a Larmor frequency RF pickup device and needle system, and controlled via the pulse sequence. METHODS: MR-RFA was evaluated with simulation of electric and magnetic fields to predict the increase in local specific-absorption-rate (SAR)...
September 18, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28921386/midterm-outcomes-of-two-staged-hybrid-ablation-of-persistent-and-long-standing-persistent-atrial-fibrillation-using-the-versapolar-epicardial-surgical-device-and-subsequent-catheter-ablation
#6
Petr Budera, Pavel Osmancik, Dalibor Herman, Jana Zdarska, David Talavera, Anna Mala, Radka Prochazkova, Zbynek Straka
PURPOSE: Hybrid ablation of atrial fibrillation (AF) is a promising treatment strategy for patients with non-paroxysmal AF, although, data regarding mid-term outcomes are limited. METHODS: Patients with persistent or long-standing persistent AF were enrolled. Initially, a thoracoscopic, right-sided, epicardial ablation was performed, with a goal of creating a box lesion on the posterior wall of the left atrium; a novel versapolar radiofrequency (RF) catheter was used...
September 18, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28918560/margin-free-excision-of-small-solid-breast-carcinomas-using-the-intact-breast-lesion-excision-system-%C3%A2-is-it-feasible
#7
Ioannis K Papapanagiotou, Dimitra Koulocheri, Vasileios Kalles, Paraskevi Liakou, Nikolaos V Michalopoulos, Wasim Al-Harethee, Georgia Georgiou, Maria Matiatou, Afroditi Nonni, Anastasia Pazaiti, Georgios E Theodoropoulos, Evangelos Menenakos, Georgios C Zografos
BACKGROUND: The Breast Lesion Excision System(®) (BLES(®)) is a stereotactic vacuum-assisted breast biopsy device that utilizes radiofrequency in order to excise non-palpable mammographic lesions for pathologic diagnosis. The purpose of this study was to evaluate the efficacy of BLES(®) in performing complete, margin-free excisions of small solid carcinomas. METHODS: Our retrospective study of prospectively enrolled patients included 50 cases of non-palpable, BIRADS ≥ 4, solid by means of mammography and sonography, lesions...
September 16, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28901312/magnetic-resonance-imaging-evaluation-after-radiofrequency-ablation-for-malignant-lung-tumors
#8
Jin Chen, Zheng-Yu Lin, Zhi-Bin Wu, Zhong-Wu Chen, Yi-Ping Chen
OBJECTIVE: The objective of this study was to investigate magnetic resonance imaging (MRI) assessment of the therapeutic response in small lung malignancies (<3 cm) immediately after radiofrequency ablation (RFA). MATERIALS AND METHODS: This is a retrospective analysis of MRI performance in 24 cases of small lung tumors (16 primary, 8 metastatic; 20 patients) immediately, post-RFA, and at follow-up. Variables measured included maximum diameters of tumors on pre-RFA MRI, central areas of low signal intensity (SI) on post-RFA T2-weighted images (T2WIs), and central areas of high SI on post-RFA T1WIs...
2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28888381/long-term-observation-of-ct-guided-radiofrequency-ablation-of-lung-neoplasm-in-476-consecutive-patients-by-a-thoracic-surgical-service-a-single-institutional-experience
#9
Bing-Yang Huang, Jun-Jun Zhou, Zhi-Qi Yu, Xiao-Yong Song, Yi Lin, Xin-Min Li, Lu Li
RATIONALE AND OBJECTIVES: The aim of the study was to evaluate the overall survival (OS) rate, progression survival rate, and local control rate over 10 years of medically inoperable patients with lung cancer undergoing computed tomography (CT)-guided radiofrequency ablation (RFA). MATERIALS AND METHODS: Between September 2004 to March 2016, 668 neoplasms were treated in 476 medically inoperable patients (294 men, 60 women; median age 74 years; range 29-84) who underwent CT-guided RFA...
September 6, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28887076/microstructural-mechanisms-of-analgesia-in-percutaneous-cervical-cordotomy-revealed-by-diffusion-tensor-imaging
#10
Stephen S Gebarski, Srinivas Chiravuri, Bradley R Foerster, Parag G Patil
The purpose of this study is to demonstrate the potential of diffusion tensor imaging (DTI) to reveal structural mechanisms underlying spinal ablative procedures, including percutaneous radiofrequency cordotomy (PRFC). PRFC is a surgical procedure that produces analgesia through focal ablation of the lateral spinothalamic tract (STT), thereby interrupting the flow of pain information from the periphery to the brain. To date, studies regarding mechanisms of analgesia after PRFC have been limited to postmortem cadaveric dissection and histology...
September 5, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28885212/comparison-of-computed-tomography-ct-and-contrast-enhanced-ultrasound-ceus-for-the-quantitative-evaluation-of-an-ablation-defect-following-radiofrequency-ablation-of%C3%A2-malignant-liver-lesions
#11
K Brünn, L Beyer, M Haimerl, B Pregler, C Stroszczynski, E M Jung, P Wiggermann
OBJECTIVE: To compare contrast-enhanced computed tomography (CT) and contrast-enhanced ultrasound (CEUS) for the quantitative evaluation of an ablation defect following radiofrequency ablation of malignant liver lesions in a prospective study. MATERIALS AND METHODS: 22 radiofrequency ablations of malignant liver tumors were performed. The ablation defects were then measured and evaluated by two independent examiners via contrast-enhanced computed tomography (CT) and contrast-enhanced ultrasound (CEUS) using a 1-5 MHz multifrequency convex ultrasound transducer (LOGIQ E9, GE) with respect to the short-axis diameter, the long-axis diameter, and the area...
September 4, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28883235/a-patient-with-hepatocellular-carcinoma-with-isolated-right-atrial-metastases
#12
Hiroaki Takaya, Hideto Kawaratani, Kenichiro Seki, Yasushi Okura, Mitsuteru Kitade, Tadashi Namisaki, Masayoshi Sawai, Yasuhiko Sawada, Takuya Kubo, Akira Mitoro, Junichi Yamao, Hitoshi Yoshiji
Hepatocellular carcinoma (HCC) with isolated right atrial metastasis is extremely rare; most cases are considered inoperable. We herein report the case of a 74-year-old man with HCC with isolated right atrial metastases without hepatic vein invasion; the right atrial lesion was resected because of the risk of heart failure and sudden death. Postoperatively, he underwent transcatheter arterial chemoembolization and radiofrequency ablation for intrahepatic HCC. He recovered completely, with a long-term survival of 36 months...
September 6, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28882353/neurophysiological-monitoring-in-radiofrequency-ablation-of-spinal-osteoid-osteoma-with-a-progressive-time-and-temperature-protocol-in-children
#13
Mariano A Nöel, Martin J Segura, Sergio Sierre, Ida A Francheri Wilson, Carlos A Tello, Eduardo Galaretto, Rodrigo G Remondino, María E Talarico, Ernesto S Bersusky, Lucas Piantoni
STUDY DESIGN: Retrospective. Level IV Evidence. OBJECTIVE: To assess the utility of intraoperative neurophysiological monitoring (IONM) to detect and eventually prevent impending neurovascular damage during computed tomography (CT)-guided radiofrequency ablation (RFA) of spinal osteoid osteoma (OO) in children. SUMMARY AND BACKGROUND DATA: To our knowledge, this is the first case series of spinal OO in pediatric patients treated at a single center employing IONM during RFA...
September 2017: Spine Deformity
https://www.readbyqxmd.com/read/28881719/combined-ct-guided-radiofrequency-ablation-with-systemic-chemotherapy-improves-the-survival-for-nasopharyngeal-carcinoma-with-oligometastasis-in-liver-propensity-score-matching-analysis
#14
Wang Li, Yutong Bai, Ming Wu, Lujun Shen, Feng Shi, Xuqi Sun, Caijin Lin, Boyang Chang, Changchuan Pan, Zhiwen Li, Peihong Wu
The aim of this study was to retrospectively compare the treatment efficacy of systemic chemotherapy combined with sequential CT-guided radiofrequency ablation (Chemo-RFA) to chemotherapy alone (Chemo-only) in the management of nasopharyngeal carcinoma (NPC) with liver metastasis. Between 2003 and 2011, 328 NPC patients diagnosed with liver metastasis at Sun Yat-sen University Cancer Center were enrolled. One-to-one matched pairs between Chemo-RFA group with the Chemo-only group were generated using propensity score matching...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28873239/interventional-radiology-in-bone-metastases
#15
REVIEW
J Chiras, E Shotar, E Cormier, F Clarençon
Interventional radiology plays a significant role in the treatment of bone metastases by various techniques, percutaneous or endovascular. Vertebroplasty is the most well-studied technique for stabilisation of spine metastases as it induces satisfactory stabilisation of the vertebra and offers clear improvement of the quality of life. Due to the success of this technique cementoplasty of other bones, mainly pelvic girdle, has been largely developed. The development of reinforced cementoplasty allows treatment of pre-fractural osteolysis of some long bones...
September 5, 2017: European Journal of Cancer Care
https://www.readbyqxmd.com/read/28871077/treatment-of-hepatic-hydatid-cyst-in-a-7-year-old-boy-using-a-new-type-of-radiofrequency-ablation-electrode
#16
Evanthia Botsa, Ioanna Thanou, Ioannis Nikas, Loukas Thanos
BACKGROUND Radiofrequency ablation has been established as a treatment method for malignancies and some particular cystic lesions, especially in adults. Experience with radiofrequency ablation in the treatment of hydatid cysts, especially in children, is limited. CASE REPORT Although echinococcosis is rare, especially in children, we describe a 7-year-old boy with lung and liver cystic echinococcosis. Diagnosis was established by clinical history and imaging findings and confirmed by positive antiechinococcal antibodies...
September 5, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28870046/-the-chinese-consensus-for-screening-diagnosis-and-management-of-barrett-s-esophagus-and-early-adenocarcinoma-2017-wanning
#17
(no author information available yet)
Patients with Barrett's esophagus (BE)/columnar lined esophagus (CLE) and adenocarcinoma are increasing, in whom 0.61% BE/CLE would develop to adenocarcinoma. The prognosis of esophageal cancer is related to the tumor stage at diagnosis. To standardize the screening, diagnosis and therapy of BE and adenocarcinoma in China, 31 digestive diseases and digestive endoscopy experts and digestive histologists drafted the consensus on the basis of clinical experience and references. The consensus defined BE as a complication of gastroesophageal reflux disease...
September 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28861631/unenhanced-magnetic-resonance-imaging-immediately-after-radiofrequency-ablation-of-liver-malignancy-preliminary-results
#18
Mirko D'Onofrio, Nicolò Cardobi, Andrea Ruzzenente, Simone Conci, Valentina Ciaravino, Alfredo Guglielmi, Roberto Pozzi Mucelli
PURPOSE: To assess the accuracy of unenhanced magnetic resonance imaging (MRI) immediately after the percutaneous ultrasound-guided radiofrequency ablation (RFA) of liver malignancy in predicting treatment efficacy at CT follow-up. MATERIALS AND METHODS: Percutaneous ablation was prospectively performed in 23 liver malignancies (20 hepatocarcinomas and 3 metastases). After the procedure in the same day all patients were studied with unenhanced MRI. The best sequence to detect the coagulative necrosis was visually established...
August 31, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28859571/exploring-the-brain-through-posterior-hypothalamus-surgery-for-aggressive-behavior
#19
Michele Rizzi, Andrea Trezza, Giuseppe Messina, Alessandro De Benedictis, Angelo Franzini, Carlo Efisio Marras
Neurological surgery offers an opportunity to study brain functions, through either resection or implanted neuromodulation devices. Pathological aggressive behavior in patients with intellectual disability is a frequent condition that is difficult to treat using either supportive care or pharmacological therapy. The bulk of the laboratory studies performed throughout the 19th century enabled the formulation of hypotheses on brain circuits involved in the generation of emotions. Aggressive behavior was also studied extensively...
September 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28859566/history-of-psychosurgery-at-sainte-anne-hospital-paris-france-through-translational-interactions-between-psychiatrists-and-neurosurgeons
#20
Marc Zanello, Johan Pallud, Nicolas Baup, Sophie Peeters, Baris Turak, Marie Odile Krebs, Catherine Oppenheim, Raphael Gaillard, Bertrand Devaux
Sainte-Anne Hospital is the largest psychiatric hospital in Paris. Its long and fascinating history began in the 18th century. In 1952, it was at Sainte-Anne Hospital that Jean Delay and Pierre Deniker used the first neuroleptic, chlorpromazine, to cure psychiatric patients, putting an end to the expansion of psychosurgery. The Department of Neuro-psychosurgery was created in 1941. The works of successive heads of the Neurosurgery Department at Sainte-Anne Hospital summarized the history of psychosurgery in France...
September 2017: Neurosurgical Focus
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