نتایج جستجو برای: radiofrequency

تعداد نتایج: 18535  

2015
Yi-He Chen Hui Lin Cheng-Long Xie Xiao-Ting Zhang Yi-Gang Li

We perform this meta-analysis to compare the efficacy and safety of cryoablation versus radiofrequency ablation for patients with cavotricuspid valve isthmus dependent atrial flutter. By searching EMBASE, MEDLINE, PubMed and Cochrane electronic databases from March 1986 to September 2014, 7 randomized clinical trials were included. Acute (risk ratio[RR]: 0.93; P = 0.14) and long-term (RR: 0.94;...

2013
Matthew David VanderHoek Hieu T Hoang Brandon Goff

Occipital neuralgia is a condition manifested by chronic occipital headaches and is thought to be caused by irritation or trauma to the greater occipital nerve (GON). Treatment for occipital neuralgia includes medications, nerve blocks, and pulsed radiofrequency ablation (PRFA). Landmark-guided GON blocks are the mainstay in both the diagnosis and treatment of occipital neuralgia. Ultrasound is...

Journal: :Epidemiology 2001
A Stang G Anastassiou W Ahrens K Bromen N Bornfeld K H Jöckel

There are few epidemiologic studies dealing with electromagnetic radiation and uveal melanoma. The majority of these studies are exploratory and are based on job and industry titles only. We conducted a hospital-based and population-based case-control study of uveal melanoma and occupational exposures to different sources of electromagnetic radiation, including radiofrequency radiation. We then...

Journal: :Physics in medicine and biology 2007
M J Daniels T Varghese E L Madsen J A Zagzebski

Minimally invasive therapies (such as radiofrequency ablation) are becoming more commonly used in the United States for the treatment of hepatocellular carcinomas and liver metastases. Unfortunately, these procedures suffer from high recurrence rates of hepatocellular carcinoma ( approximately 34-55%) or metastases following ablation therapy. The ability to perform real-time temperature imaging...

Journal: :Cancer research 1977
J B Marmor N Hahn G M Hahn

Radiofrequency electromagnetic fields at 13.56 MHz were used to heat locally EMT-6 sarcomas and KHJJ carcinomas in BALB/cKa mice. Temperature profiles obtained in tumors during treatment showed uniform temperature distribution throughout the tumor volume with no systemic hyperthermia. Temperature could be maintained at a stable level throughout treatment by adjustment of power. Tumors were trea...

2016
Jianyi Sun Xiaosun Liu Qing Zhang Yanyun Hong Bin Song Xiaodong Teng Jiren Yu

Standard therapy has not been established for thyroid cancer when a thyroidectomy is contraindicated due to systemic disease. Herein, we reported a patient who had hypertrophic cardiomyopathy and papillary thyroid carcinoma treated by radiofrequency ablation because of inability to tolerate a thyroidectomy. Radiofrequency ablation can be used to treat thyroid cancer when surgery is not feasible...

2016
Stephan Kemmner Hasema Lesevic Tilko Reents Heribert Schunkert Christof Burgdorf

A middle-aged female suffering from ARVD presented for routine follow-up 8 weeks after right ventricular radiofrequency ablation of recurring ventricular tachycardia. Echocardiography revealed two right ventricular thrombi in the scar area of right ventricular radiofrequency ablation. Ablation-related thromboembolic events should be considered as possible complication in patients suffering from...

2017

Submit Manuscript | http://medcraveonline.com Abbreviations: EMFs: Electromagnetic Fields; MWR: Microwave Radiation; NIR: Non-Ionizing Radiation; RF-EMW: Radiofrequency Electromagnetic Waves; RF: Radiofrequency; EMW: Electromagnetic Wave; SNS: Sympathetic Nervous System; PNS: Parasympathetic Nervous System; PRA: Plasma Renin Activity; AMI: Acute Myocardial Infarction; SNAP: N-AcetylSnitrosoDl-P...

2017
Qing Tian Guijie Wang Yamin Zhang Yan Jin Zilin Cui Xiaoye Sun Zhongyang Shen

RATIONALE Postliver transplant periampullary carcinoma is an extremely uncommon disease. PATIENT CONCERNS Cutaneous jaundice in a patient who had received a liver transplant 4 years earlier. DIAGNOSIS Periampullary carcinoma. INTERVENTIONS Radiofrequency ablation plus fully covered self-expanding metal stents (FCSEMS). OUTCOMES The treatment of malignant neoplasm of the ampulla of Vater...

Journal: :Obstetrics and gynecology 2003
F Bombelli F Lagona A Salvati L Catalfamo A G Ferrari C Pappone

BACKGROUND Treatment of maternal tachyarrhythmias in pregnancy is a major clinical issue. Pharmacological treatment raises important concerns regarding partial efficacy and side effects. Radiofrequency ablation of arrhythmogenic substrate has rarely been performed during pregnancy because of the fetal risks related to x-ray exposure and potential fetomaternal procedural complications. CASES T...

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