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radio-frequency ablation

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https://www.readbyqxmd.com/read/28513144/rapid-elemental-analysis-of-aerosols-using-atmospheric-glow-discharge-optical-emission-spectroscopy
#1
Lina Zheng, Pramod Kulkarni
A new, low-cost approach based on the application of atmospheric radio frequency glow discharge (rf-GD) optical emission spectroscopy (OES) has been developed for near real-time measurement of multielemental concentration in airborne particulate matter. This method involves deposition of aerosol particles on the tip of a grounded electrode of a coaxial microelectrode system, followed by ablation, atomization and excitation of the particulate matter using the rf-GD. The resulting atomic emissions were recorded using a spectrometer for elemental identification and quantification...
May 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28436636/-iodine-131-joint-radio-frequency-ablation-treatment-for-child-with-hyperthyroidism-goiter-one-case-report
#2
Yonghua Chen, Li Liang, Yanlan Fang, Chunlin Wang, Linfa Li, Tian'an Jiang
A 12-year-old girl presented with a history of cervical mass, and one week of throat discomfort and dyspnea. Five years ago, the patient was diagnosed as Hashimoto's thyroiditis and hyperthyroidism; she received antithyroid drug treatment, but the result was not satisfactory. B-ultrasonic showed that the size of thyroid gland was 8.1 cm×3.2 cm in the left and 8.2 cm×4.8 cm in the right. After iodine 131 combined with radiofrequency ablation (RFA) treatment, throat discomfort and recumbent breathing difficulties disappeared, and B-ultrasonic showed that the size of thyroid reduced to 2...
January 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28324925/non-invasive-imaging-of-ventricular-activation-during-pacing-and-arrhythmia-methods-and-validation
#3
Long Yu, Steven Pogwizd, Bin He
Cardiovascular disease continued to be a leading killer world widely. Each year, about 400,000 cases of sudden cardiac arrest are reported in the U.S. alone. Clinically, radio-frequency ablative procedure has become widely applied in the treatment of ventricular arrhythmia. Non-invasive approaches have been demonstrated to be able to provide important information on the arrhythmogenesis and potentially assist in the clinical practice. In this work, we develop and validate a novel temporal sparse based imaging method, Cardiac Electrical Sparse Imaging (CESI)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28271996/multi-detector-computed-tomography-mdct-findings-of-seven-cases-with-spontaneous-regression-of-hepatocellular-carcinoma
#4
Adel El-Badrawy
PURPOSE: To review Multi-detector CT findings of seven cases with spontaneous regression of hepatocellular carcinomas (HCC). MATERIALS AND METHODS: This retrospective study included 7 patients confirmed with diagnosis of HCC. Triphasic CT scan using multi-detector CT scanner was done for all patients. They were 2 women and 5 men. 1st patient presented with metastatic HCC underwent fine needle aspiration cytology (FNAC) from vertebral metastasis. 2nd patient underwent only one session of trans-arterial chemo-lipidol...
January 2017: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28240755/mechanical-thrombolysis-as-an-adjunct-therapy-to-management-of-portal-vein-thrombosis-following-radio-frequency-ablation
#5
A O Hairol, C A Affirul, A Azlanudin, Z Zamri, J Razman, S Y Choi
Radiofrequency ablation (RFA) has evolved to become the treatment of choice for non-resectable recurrent colorectal liver metastasis. It is however, not without complications. Portal vein thrombosis following RFA is rare but can be fatal to the outcome of the patient. Here, we present a case of a 66-year-old man who developed portal vein thrombosis following RFA. CT scan revealed a left portal vein thrombosis. This case report highlights the challenges and multimodal treatment of portal vein thrombosis following Radiofrequency ablation (RFA) in a cirrhotic patient...
January 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/28226451/non-invasive-imaging-of-ventricular-activation-during-pacing-and-arrhythmia-methods-and-validation
#6
Long Yu, Steven Pogwizd, Bin He, Long Yu, Steven Pogwizd, Bin He, Bin He, Steven Pogwizd, Long Yu
Cardiovascular disease continued to be a leading killer world widely. Each year, about 400,000 cases of sudden cardiac arrest are reported in the U.S. alone. Clinically, radio-frequency ablative procedure has become widely applied in the treatment of ventricular arrhythmia. Non-invasive approaches have been demonstrated to be able to provide important information on the arrhythmogenesis and potentially assist in the clinical practice. In this work, we develop and validate a novel temporal sparse based imaging method, Cardiac Electrical Sparse Imaging (CESI)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28188362/comparing-renal-function-preservation-after-laparoscopic-radio-frequency-ablation-assisted-tumor-enucleation-and-laparoscopic-partial-nephrectomy-for-clinical-t1a-renal-tumor-using-a-3d-parenchyma-measurement-system
#7
Liangsong Zhu, Guangyu Wu, Jiwei Huang, Jianfeng Wang, Ruiyun Zhang, Wen Kong, Wei Xue, Yiran Huang, Yonghui Chen, Jin Zhang
PURPOSE: To compare the renal function preservation between laparoscopic radio frequency ablation assisted tumor enucleation and laparoscopic partial nephrectomy. METHODS: Data were analyzed from 246 patients who underwent laparoscopic radio frequency ablation assisted tumor enucleation and laparoscopic partial nephrectomy for solitary cT1a renal cell carcinoma from January 2013 to July 2015. To reduce the intergroup difference, we used a 1:1 propensity matching analysis...
May 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28171697/endoscopic-ultrasonography-guided-tumor-ablation
#8
REVIEW
Sundeep Lakhtakia, Dong-Wan Seo
Real-time guidance of needle advancement has transformed endoscopic ultrasound (EUS) from a diagnostic to an interventional procedure. EUS-guided fine-needle puncture has application in various interventional procedures (drainage of pseudocyst, biliary intervention, and injection of drugs). Celiac plexus or ganglion neurolysis for pain control is the major current EUS-guided fine-needle injection procedure. Feasibility and safety to accurately position needle devices and/or inject under real-time EUS imaging with precise delivery of interventional agent have expanded the use of EUS to ablate tumors...
May 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28164897/assembling-a-make-shift-light-source-for-a-radio-frequency-device-for-skin-ablation
#9
Karalikkattil T Ashique, Kassim Kolakkadan, Feroze Kaliyadan
No abstract text is available yet for this article.
March 2017: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/28163466/angiolymphoid-hyperplasia-with-oeosinophilia-showing-promising-result-with-intralesional-radio-frequency-ablation-therapy-a-new-cost-effective-and-hassle-free-modality-of-treatment
#10
Chintaginjala Aruna, Senthil Kumar Alagappan, Ramamurthy Damaraju Venkata Satya Bhaskara, Sruthi Kondaveeti
No abstract text is available yet for this article.
October 2016: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/28162726/-472-supraorbital-neuralgia-treatment-with-radio-frequency-ablation
#11
A Dua, J Shepherd, S Bahadur, D Martin
No abstract text is available yet for this article.
April 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28122031/long-term-outcomes-of-radio-frequency-catheter-ablation-on-ventricular-tachycardias-due-to-arrhythmogenic-right-ventricular-cardiomyopathy-a-single-center-experience
#12
Wei Wei, Hongtao Liao, Yumei Xue, Xianhong Fang, Jun Huang, Yang Liu, Hai Deng, Yuanhong Liang, Zili Liao, Fangzhou Liu, Weidong Lin, Xianzhang Zhan, Shulin Wu
AIMS: To summarize our experience of radiofrequency catheter ablation (RFCA) for recurrent drug-refractory ventricular tachycardias (VTs) due to arrhythmogenic right ventricular cardiomyopathy (ARVC) in our center over the past 11 years and its related factors. METHODS AND RESULTS: We reviewed 48 adults (mean age 39.9 ± 12.9 years, range: 14 to 65) who met the present ARVC diagnostic criteria and accepted RFCA for VTs from December 2004 to April 2016. The patients received a total of 70 procedures using two ablation approaches, the endocardial approach in 52 RFCAs, and the combined epicardial and endocardial approach (the combined approach) in 18 RFCAs...
2017: PloS One
https://www.readbyqxmd.com/read/28113236/accurate-physics-based-registration-for-the-outcome-validation-of-minimal-invasive-interventions-and-open-liver-surgeries
#13
Cristina Laura, Klaus Drechsler, Stefan Wesarg, Reto Bale
OBJECTIVE: The purpose of this paper is to present an outcome validation tool for tumor radio frequency ablation and resection. METHODS: Intervention assessment tools require an accurate registration of both pre- and postoperative computed tomographies able to handle big deformations. Therefore, a physics based method is proposed with that purpose. To increase the accuracy both automatically detected internal and surface physical landmarks are incorporated in the registration process...
April 27, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28012210/elimination-of-ventricular-arrhythmia-in-catecholaminergic-polymorphic-ventricular-tachycardia-by-targeting-catecholamine-sensitive-area-a-dominant-subordinate-relationship-between-origin-sites-of-bidirectional-ventricular-premature-contractions
#14
Yasuhiro Shirai, Masahiko Goya, Seiko Ohno, Minoru Horie, Shozaburo Doi, Mitsuaki Isobe, Kenzo Hirao
We report on a patient diagnosed with CPVT who underwent catheter ablation of VPCs induced by epinephrine. VPCs were classified roughly into 3 types. Type 1 and Type 2 VPCs (RBBB configuration and inferior axis) were eliminated by radio frequency applications at the left aortic sinus of Valsalva and the anterolateral papillary muscle (APM), respectively. Although no spontaneous VPCs were seen after the elimination of Type 1 and 2 VPCs, pacing resulting in capture at the APM induced type 3 VPC (RBBB configuration and superior axis) reproducibly...
December 24, 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27994333/comparative-study-of-outcome-of-duplex-ultrasound-guided-catheter-directed-foam-sclerotherapy-and-radio-frequency-ablation-in-the-management-of-great-saphenous-varicose-veins
#15
Manish Kumar Mishra, Rajesh Kumar Soni, Ravindra Singh Mohil, Ajit Sinha
Chronic venous insufficiency of lower limbs is a common problem in adults. We compared the two modalities, namely duplex ultrasound-guided, catheter-directed foam sclerotherapy (UGFS) and radio-frequency ablation (RFA), in the management of great saphenous varicose veins using clinical assessment (Venous Clinical Severity Score, Venous Disability Score) and duplex imaging. Patients presenting with great saphenous vein (GSV) varicosity due to incompetent saphenofemoral junction (SFJ) were selected and randomly assigned in each arm, i...
October 2016: Indian Journal of Surgery
https://www.readbyqxmd.com/read/27981883/varicose-vein-therapy-and-nerve-lesions
#16
Tobias Hirsch
Treating varicose veins using endovenous thermal techniques - especially laser and radio frequency ablation - has emerged as an effective alternative to open surgery with stripping and high ligation. Even though these methods are very gentle and patient-friendly, they are nevertheless accompanied by risks and side effects. Compared to open surgical therapy, the risk of damage to peripheral and motor nerves is reduced; however, it still exists as a result of heat exposure and tumescent anaesthesia. Non-thermal methods that can be applied without tumescent anaesthesia have been introduced to the market...
March 2017: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/27966462/radio-frequency-mediated-local-thermotherapy-for-destruction-of-pancreatic-tumors-using-ni-au-core-shell-nanowires
#17
Xiaoping Hopkins, Waqas Amin Gill, Rosemarie Kringel, Guankui Wang, Jamie Hass, Suresh Acharya, Jungrae Park, In Tak Jeon, Boo Hyun An, Ji Sung Lee, Jong Eun Ryu, Rod Hill, David McIlroy, Young Keun Kim, Daniel S Choi
We present a novel method of radio frequency (RF)-mediated thermotherapy in tumors by remotely heating nickel (Ni)-gold (Au) core-shell nanowires (CSNWs). Ectopic pancreatic tumors were developed in nude mice to evaluate the thermotherapeutic effects on tumor progression. Tumor ablation was produced by RF-mediated thermotherapy via activation of the paramagnetic properties of the Ni-Au CSNWs. Histopathology demonstrated that heat generated by RF irradiation caused significant cellular death with pyknotic nuclei and nuclear fragmentation dispersed throughout the tumors...
January 20, 2017: Nanotechnology
https://www.readbyqxmd.com/read/27932994/comparative-mrna-and-microrna-profiling-during-acute-myocardial-infarction-induced-by-coronary-occlusion-and-ablation-radio-frequency-currents
#18
Eduardo T Santana, Regiane Dos Santos Feliciano, Andrey J Serra, Eduardo Brigidio, Ednei L Antonio, Paulo J F Tucci, Lubov Nathanson, Mariana Morris, José A Silva
The ligation of the left anterior descending coronary artery is the most commonly used experimental model to induce myocardial infarction (MI) in rodents. A high mortality in the acute phase and the heterogeneity of the size of the MI obtained are drawbacks recognized in this model. In an attempt to solve the problem, our group recently developed a new MI experimental model which is based on application of myocardial ablation radio-frequency currents (AB-RF) that yielded MI with homogeneous sizes and significantly reduce acute mortality...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27928789/-surgical-management-of-locally-advanced-digestive-tract-neuroendocrine-neoplasm-with-or-without-liver-metastasis
#19
Xiaosong Wang, Jiangfeng Qiu, Zhiyong Wu
Neuroendocrine tumors in the digestive tract are rare, however their incidences increased obviously for the past few years. The purpose of this paper is to elucidate the surgical management of locally advanced digestive tract neuroendocrine neoplasms(NENs) with or without liver metastasis and to discuss the present classification of gastrointestinal NENs in order to provide reference for clinicians. WHO re-classified the gastroenteropancreatic NENs in 2010, but this classification remains many questions and needs further clinical trials to answer...
November 25, 2016: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
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
#20
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
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