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Radiofrequency ablation

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https://www.readbyqxmd.com/read/28936542/efficacy-of-percutaneous-radiofrequency-ablation-may-vary-with-clear-cell-renal-cell-cancer-histologic-subtype
#1
Timothy McClure, Allan Pantuck, James Sayer, Steven Raman
PURPOSE: The purpose of the study is to determine if clear cell renal cell cancer (RCC) subtype predicts efficacy in percutaneous radiofrequency (RF) ablation of RCC. METHODS AND MATERIALS: Patients who underwent percutaneous RF ablation for histologically proven RCC subtypes were retrospectively reviewed. Group comparisons were done using univariate and multivariate logistic regression analysis to determine factors impacting primary, secondary, and total technique effectiveness...
September 21, 2017: Abdominal Radiology
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
#2
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
#3
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/28931194/intracapsular-tonsillectomy-for-keratosis-pharyngeous-a-pilot-study-of-postoperative-recovery-and-surgical-efficacy
#4
Philip A Gaudreau, Eric M Gessler
Our objective was to perform a pilot study comparing intracapsular radiofrequency ablation tonsillectomy with subcapsular tonsillectomy in adult patients with keratosis pharyngeous. Patients diagnosed with keratosis pharyngeous between December 2010 and February 2013 were randomized to undergo either intracapsular or subcapsular tonsillectomy using radiofrequency ablation. Postoperative pain scores and amount of pain medication taken were recorded for 2 weeks. A 6-month follow-up questionnaire was used to assess efficacy of the procedure...
September 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28929532/the-impact-of-left-ventricular-deformation-and-dyssynchrony-on-improvement-of-left-ventricular-ejection-fraction-following-radiofrequency-catheter-ablation-in-wolff-parkinson-white-syndrome-a-comprehensive-study-by-speckle-tracking-echocardiography
#5
Tomoo Nagai, Akira Hamabe, Junko Arakawa, Hirotsugu Tabata, Toshihiko Nishioka
PURPOSE: The purpose of this study was to evaluate left ventricular (LV) deformation and LV dyssynchrony in patients with Wolff-Parkinson-White (WPW) syndrome and to identify the factors that affect the efficacy of radiofrequency catheter ablation (RFCA). METHODS: Thirty patients (26 men, mean age 40 ± 12 years) with WPW syndrome were prospectively recruited for this study. They underwent 2-dimensional transthoracic echocardiography with speckle tracking analysis before RFCA and again within 48 hours after RFCA...
September 19, 2017: Echocardiography
https://www.readbyqxmd.com/read/28928914/reducing-radiation-exposure-in-an-electrophysiology-lab-with-introduction-of-newer-fluoroscopic-technology
#6
Munish Sharma, Koroush Khalighi
The use of fluoroscopic devices exposes patients and operators to harmful effects of ionizing radiation in an electrophysiology (EP) lab. We sought to know if the newer fluoroscopic technology (Allura Clarity) installed in a hybrid EP helps to reduce prescribed radiation dose. We performed radiation dose analysis of 90 patients who underwent various procedures in the EP lab at a community teaching hospital after the introduction of newer fluoroscopic technology in June of 2016. Watchman device insertion, radiofrequency ablation procedures, permanent pacemaker (PPM)/implantable cardioverter defibrillator (ICD) placement and battery changes were included in the study to compare radiation exposure during different procedures performed commonly in an EP lab...
June 7, 2017: Clinics and Practice
https://www.readbyqxmd.com/read/28927960/a-comparison-between-multipolar-mapping-and-conventional-mapping-of-atrial-tachycardias-in-the-context-of-atrial-fibrillation-ablation
#7
Sok-Sithikun Bun, Tahar Delassi, Decebal Gabriel Latcu, Mohammed El Jamili, Anis Ayari, Abdelkarim Errahmouni, Benjamin Berte, Nadir Saoudi
BACKGROUND: Activation mapping can be challenging and time-consuming in patients with multiple atrial tachycardias (ATs). AIMS: To compare multielectrode mapping using a dedicated mapping catheter - PentaRay (Biosense Webster Inc.) - and the conventional technique for mapping ATs in the context of atrial fibrillation (AF) ablation. METHODS: All procedures where PentaRay mapping of AT were used - after or during persistent AF ablation - were analysed...
September 15, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28927701/an-epileptologist-s-view-seizure-related-outcomes-after-radiofrequency-ablation-for-mesial-temporal-lobe-epilepsy
#8
REVIEW
Zdeněk Vojtěch, Michaela Stará
In this article, we provide an overview of the reasons for the introduction of less invasive treatment modalities in the management of intractable mesial temporal lobe epilepsy (mTLE). We summarize our published research on stereotactic amygdalohippocampectomy (SAHE) and recalculate our data for the patients' last visit. In our previous work, we found that patients achieved long-term seizure-free outcomes in 70.5%. Re-analysis of results in a subgroup of patient who were diagnosed and followed-up at Epilepsy Center, Na Homolce Hospital, Prague, indicate that these outcomes are durable...
September 12, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28927661/local-control-and-survival-after-image-guided-percutaneous-ablation-of%C3%A2-adrenal%C3%A2-metastases
#9
Nathan E Frenk, Dania Daye, Kemal Tuncali, Ronald S Arellano, Paul B Shyn, Stuart G Silverman, Florian J Fintelmann, Raul N Uppot
PURPOSE: To evaluate local control and survival after image-guided ablation of adrenal gland metastases. MATERIALS AND METHODS: Image-guided ablations of adrenal metastases measuring < 5 cm performed at 2 academic medical centers between July 2002 and June 2016 were analyzed. There were 51 procedures performed on 46 tumors (mean diameter 2.8 cm ± 1.1; range, 0.7-4.9 cm) in 38 patients (mean age 66 y; range, 41-80 y) with renal cell carcinoma (n = 17 patients; 45%), non-small cell lung cancer (n = 10 patients; 26%), and other primary malignancies (n = 11 patients; 29%)...
September 16, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28927066/utility-of-percutaneous-radiofrequency-ablation-alone-or-combined-with-transarterial-chemoembolization-for-early-hepatocellular-carcinoma
#10
Tsutomu Tamai, Akihiko Oshige, Kazuaki Tabu, Eriko Tabu, Syo Ijyuin, Haruka Sakae, Hiroka Onishi, Kaori Muromachi, Akiko Saisyoji, Kohei Oda, Kotaro Kumagai, Seiichi Mawatari, Akihiro Moriuchi, Kazuhiro Sakurai, Tsuyoshi Hori, Akio Ido
Percutaneous radiofrequency ablation (RFA) combined with transarterial chemoembolization (TACE) is an effective, standard therapy against small hepatocellular carcinoma (HCC). However, there is debate regarding the effectiveness of RFA combined with TACE (RFA/TACE) compared with RFA alone. These two approaches were compared for the treatment of early HCC. The present study examined 83 HCC tumors in 83 patients treated with RFA between April 2007 and August 2014 at three medical institutions. All HCCs were single hypervascular tumors, with a median diameter of 16 mm (range, 6-30 mm)...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927051/predisposing-factors-for-hepatocellular-carcinoma-recurrence-following-initial-remission-after-transcatheter-arterial-chemoembolization
#11
Akitoshi Douhara, Tadashi Namisaki, Kei Moriya, Mitsuteru Kitade, Kosuke Kaji, Hideto Kawaratani, Kosuke Takeda, Yasushi Okura, Hiroaki Takaya, Ryuichi Noguchi, Norihisa Nishimura, Kenichiro Seki, Shinya Sato, Yasuhiko Sawada, Junichi Yamao, Akira Mitoro, Masakazu Uejima, Tsuyoshi Mashitani, Naotaka Shimozato, Soichiro Saikawa, Keisuke Nakanishi, Masanori Furukawa, Takuya Kubo, Hitoshi Yoshiji
Hepatocellular carcinoma (HCC) is prone to recurrence following curative treatment. The purpose of the present study was to identify the predisposing factors of HCC recurrence following complete remission achieved by transarterial chemoembolization (TACE). A retrospective cohort study of 70 consecutive patients with HCC who underwent TACE as the initial treatment was conducted. The patients were divided into two groups according to their 1-year disease-free survival (DFS) status; the early recurrence group (ER group; n=32), with HCC recurring within 1 year of initial TACE; and the non-early recurrence group (NER group; n=38), who did not experience recurrence within 1 year...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927032/clinical-study-of-radiofrequency-ablation-combined-with-tace-in-the-treatment-of-breast-cancer-with-liver-metastasis
#12
Haijun Wang, Bin Liu, Houlong Long, Fengfeng Zhang, Silei Wang, Feng Li
We studied the clinical effects of percutaneous radiofrequency ablation (RFCA) combined with trans-catheter arterial chemoembolization (TACE) in the treatment of breast cancer with liver metastasis. Eighty-eight patients with a diagnosis of breast cancer with liver metastasis for the first time and patients with liver metastasis after radical mastectomy were consecutively selected. The subjects were divided according to the different treatment methods. They were divided either into the control group of 50 cases or the observation group of 38 cases...
September 2017: Oncology Letters
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
#13
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/28925907/atrial-fibrillation-ablation-increases-inflammation-chemokine-modulation-suppresses-activation-of-leukocytes-isolated-after-ablation
#14
Alexandra Lucas, Mohammad Al-Ani, Sriram Ambadapadi, Jordan R Yaron, Donghang Zheng, Adisson Fortunel, Maia Doroton-Guevara, Liying Liu, Sufi Morshed, Jay Fricker, William Miles, Matthew McKillop
AIMS: Atrial fibrillation (AF) ablation is associated with increased circulating markers of inflammation. Innate immune, or inflammation, pathways up-regulate mononuclear cell responses and may increase risk for recurrent arrhythmia. Chemokines and serine protease coagulation pathways both activate innate immune responses. Here, we measured inflammatory markers in peripheral blood samples from patients after cryoballoon and/or radiofrequency pulmonary vein isolation and assessed the capacity for inhibition of chemokine and serine protease pathways to block cell activation...
September 18, 2017: Cardiovascular & Hematological Disorders Drug Targets
https://www.readbyqxmd.com/read/28924943/iodized-oil-transarterial-chemoembolization-and-radiofrequency-ablation-for-small-periportal-hepatocellular-carcinoma-comparison-with-nonperiportal-hepatocellular-carcinoma
#15
Sang Yub Lee, Dongho Hyun, Sung Ki Cho, Sung Wook Shin, Sin-Ho Jung, Sang Ah Chi
PURPOSE: This study aims to evaluate the treatment outcomes of iodized oil transarterial chemoembolization (TACE) and subsequent radiofrequency ablation (RFA) for small (≤3 cm) periportal hepatocellular carcinoma (HCC) compared with nonperiportal HCC. METHODS: Twenty-three patients [periportal group (PG); mean age, 59.8 years; 22 men, 1 woman] with periportal HCC (in contact with the portal vein >3 mm in diameter) and 279 patients [nonperiportal group (NPG); mean age, 59...
September 18, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28924561/cooled-radiofrequency-ablation-of-genicular-nerves-for-knee-osteoarthritis-pain-a-letter-to-editor
#16
Menno E Sluijter, Alexandre Teixeira
No abstract text is available yet for this article.
June 2017: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/28924077/perforation-of-the-left-atrial-appendage-caused-by-inadvertent-deployment-of-a-soft-j-tipped-guidewire-during-radiofrequency-hot-balloon-ablation
#17
Hiro Yamasaki, Fumi Yamagami, Takeshi Machino, Kenji Kuroki, Yukio Sekiguchi, Kazutaka Aonuma, Akihiko Nogami
No abstract text is available yet for this article.
September 16, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28922117/magnetic-resonance-mediated-radiofrequency-ablation
#18
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/28921408/catheter-ablation-for-af-improves-global-thrombotic-profile-and-enhances-fibrinolysis
#19
Maria Niespialowska-Steuden, Vias Markides, Mohamed Farag, David Jones, Wajid Hussain, Tom Wong, Diana A Gorog
Patients with atrial fibrillation (AF) are at increased risk of thrombotic events despite oral anticoagulation (OAC). Radiofrequency catheter ablation (RFCA) can restore and maintain sinus rhythm (SR) in patients with AF. To assess whether RFCA improves thrombotic status. 80 patients (71% male, 64 ± 12y) with recently diagnosed AF, on OAC and scheduled to undergo RFCA or DC cardioversion (DCCV) were recruited. Thrombotic status was assessed using the point-of-care global thrombosis test (GTT), before, and 4-6 weeks after DCCV and 3 months after RFCA...
September 18, 2017: Journal of Thrombosis and Thrombolysis
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
#20
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
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