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Denervation radiofrequency

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https://www.readbyqxmd.com/read/29287767/resistant-hypertension-renal-denervation-or-intensified-medical-treatment
#1
REVIEW
Alberto Morganti, Giuseppe Mancia
Resistant hypertension (RH) can be diagnosed if blood pressure (BP) is not controlled with the combination of three antihypertensive drugs, including a diuretic, all at effective doses. Patients affected by this condition exhibit a marked increase in the risk of cardiovascular and renal morbid and fatal events. They also exhibit an increased activity of the sympathetic nervous system which is likely to importantly contribute at the renal and other vascular levels to the hypertensive state. Almost 10years ago renal denervation (RDN) by radiofrequency thermal energy delivery to the walls of the renal arteries was proposed for the treatment of RH...
December 27, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29234803/radiofrequency-denervation-for-chronic-low-back-pain-reply
#2
LETTER
Esther Maas, Johan Juch, Frank Huygen
No abstract text is available yet for this article.
December 12, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29234800/radiofrequency-denervation-for-chronic-low-back-pain
#3
LETTER
Yakov Vorobeychik, Milan P Stojanovic, Zachary L McCormick
No abstract text is available yet for this article.
December 12, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29234799/radiofrequency-denervation-for-chronic-low-back-pain
#4
LETTER
Ming-Chih Kao, Michael S Leong, Sean Mackey
No abstract text is available yet for this article.
December 12, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29234798/radiofrequency-denervation-for-chronic-low-back-pain
#5
LETTER
Varun Rimmalapudi, Jeff Buchalter, Aaron Calodney
No abstract text is available yet for this article.
December 12, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29224639/a-multinational-clinical-approach-to-assessing-the-effectiveness-of-catheter-based-ultrasound-renal-denervation-the-radiance-htn-and-require-clinical-study-designs
#6
RANDOMIZED CONTROLLED TRIAL
Laura Mauri, Kazuomi Kario, Jan Basile, Joost Daemen, Justin Davies, Ajay J Kirtane, Felix Mahfoud, Roland E Schmieder, Michael Weber, Shinsuke Nanto, Michel Azizi
Catheter-based renal denervation is a new approach to treat hypertension via modulation of the renal sympathetic nerves. Although nonrandomized and small, open-label randomized studies resulted in significant reductions in office blood pressure 6months after renal denervation with monopolar radiofrequency catheters, the first prospective, randomized, sham-controlled study (Symplicity HTN-3) failed to meet its blood pressure efficacy end point. New clinical trials with new catheters have since been designed to address the limitations of earlier studies...
January 2018: American Heart Journal
https://www.readbyqxmd.com/read/29186577/proposed-optimal-fluoroscopic-targets-for-cooled-radiofrequency-neurotomy-of-the-sacral-lateral-branches-to-improve-clinical-outcomes-an-anatomical-study
#7
Alison Stout, Paul Dreyfuss, Nathan Swain, Shannon Roberts, Eldon Loh, Anne Agur
Background: Current sacroiliac joint (SIJ) cooled radiofrequency (RF) is based on fluoroscopic anatomy of lateral branches (LBs) in three specimens. Recent studies confirm significant variation in LB positions. Objectives: To determine if common fluoroscopic needle placements for cooled SIJ RF are adequate to lesion all S1-3 LBs. If not, would different targets improve lesion accuracy? Methods: The LBs of 20 cadavers were dissected bilaterally (40 SIJs), and 26 G radiopaque wires were sutured to the LBs...
November 23, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29173659/radiofrequency-denervation-of-the-cervical-and-lumbar-spine
#8
REVIEW
Jessica Arias Garau
Facet or zygapophysial joint pain is commonly seen in the aging population. Interventional procedures, such as facet joint nerve blocks, facet intraarticular injections, and radiofrequency denervation, are used for the diagnosis and treatment of axial spinal chronic neck and low back pain. The focus of this article is to understand how radiofrequency denervation works in the cervical and lumbar spine and to be able to properly select appropriate patients who might benefit from this safe and effective procedure...
February 2018: Physical Medicine and Rehabilitation Clinics of North America
https://www.readbyqxmd.com/read/29172730/renal-sympathetic-denervation-lowers-arterial-pressure-in-canines-with-obesity-induced-hypertension-by-regulating-gad65-and-at1r-expression-in-rostral-ventrolateral-medulla
#9
Zhijie Shen, Chunyan Weng, Zhihui Zhang, Xiaoyan Wang, Kan Yang
To explore the roles of glutamate acid decarboxylase 65 (GAD65) and angiotensin II type 1 receptor (AT1R) in the action of renal sympathetic denervation (RSD) on obesity-induced hypertension in canines. Thirty-two beagles were randomly divided into a hypertensive model (n = 22) and control (n = 10) groups. A hypertensive canine model was established by feeding a high-fat diet. Twenty hypertensive beagles were randomized equally to a sham-surgery and RSD-treated group receiving catheter-based radiofrequency RSD...
November 27, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/29167604/lumbar-facet-joint-injection-in-treating-low-back-pain-radiofrequency-denervation-versus-sham-procedure-systematic-review
#10
Munnan Al-Najjim, Rohit Shah, Mahmoud Rahuma, Omar Abdul Gabbar
The lumbar facet joints have been implicated as one of the causes of low-back pain syndromes. About 15-40% of patients who presented with chronic low-back pain was attributed to lumbar facet joint pain. The purpose of this study was to analyse whether radiofrequency denervation is better than SHAM procedure in treating chronic low-back pain caused by lumbar zygapophysial joints pathology. From the four identified randomised control trials, there is conflicting evidence at an intermediate 3-6-month stage, however; one study demonstrates statistical significance of radiofrequency denervation at 3 months...
March 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29140962/anatomic-study-of-innervation-of-the-anterior-hip-capsule-implication-for-image-guided-intervention
#11
Anthony J Short, Jessi Jo G Barnett, Michael Gofeld, Ehtesham Baig, Karen Lam, Anne M R Agur, Philip W H Peng
BACKGROUND AND OBJECTIVES: The purpose of this cadaveric study was to determine the pattern of anterior hip capsule innervation and the associated bony landmarks for image-guided radiofrequency denervation. METHODS: Thirteen hemipelvises were dissected to identify innervation of the anterior hip capsule. The femoral (FN), obturator (ON), and accessory obturator (AON) nerves were traced distally, and branches supplying the anterior capsule documented. The relationships of the branches to bony landmarks potentially visible with ultrasound were identified...
November 14, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29119066/bipolar-radiofrequency-facet-ablation-of-the-lumbar-facet-capsule-an-adjunct-to-conventional-radiofrequency-ablation-for-pain-management
#12
Robert E Jacobson, Ovidiu Palea, Michelle Granville
Radiofrequency facet ablation (RFA) has been performed using the same technique for over 50 years. Except for variations in electrode size, tip shape, and change in radiofrequency (RF) stimulation parameters, using standard, pulsed, and cooled RF wavelengths, the target points have remained absolutely unchanged from the original work describing RFA for lumbar pain control. Degenerative changes in the facet joint and capsule are the primary location for the majority of lumbar segmental pathology and pain. Multiple studies show that the degenerated facet joint is richly innervated as a result of the inflammatory overgrowth of the synovium...
September 1, 2017: Curēus
https://www.readbyqxmd.com/read/29050562/renal-sympathetic-denervation-protects%C3%A2-the-failing-heart-via-inhibition-of%C3%A2-neprilysin%C3%A2-activity-in-the-kidney
#13
David J Polhemus, Rishi K Trivedi, Juan Gao, Zhen Li, Amy L Scarborough, Traci T Goodchild, Kurt J Varner, Huijing Xia, Frank W Smart, Daniel R Kapusta, David J Lefer
BACKGROUND: Sustained sympathetic activation contributes to the progression of myocardial cell injury, cardiac fibrosis, and left ventricular (LV) dysfunction in heart failure (HF). OBJECTIVES: This study investigated the effects of radiofrequency renal nerve denervation (RF-RDN) on the pathobiology of HF and the interaction between the renal sympathetic nerves and natriuretic peptide (NP) metabolism. METHODS: Spontaneously hypertensive rats (SHR) and normotensive Wistar-Kyoto rats (WKY) were subjected to 45 min of coronary artery ligation and reperfusion for 12 weeks...
October 24, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29041878/-influence-of-sympathetic-denervation-of-the-renal-artery-on-the-level-of-arterial-blood-pressure-cerebral-blood-flow-and-cognitive-function-in-patients-with-resistant-arterial-hypertension
#14
Y N Efimova, A V Lichikaki, B Y Lishmanov
PURPOSE: To study the effect of radiofrequency ablation of renal arteries on regional cerebral blood flow and cognitive function in patients with resistant arterial hypertension (AH). MATERIAL AND METHODS: Transcatheter renal denervation (TRD) was performed in 17 patients with resistant AH. Examination before and after TRD included SPECT with mTc-HMPAO, 24-hours blood pressure (BP) monitoring, and comprehensive neuropsychological testing. Fifteen patients without angiographic signs of carotid atherosclerosis, coronary artery disease and AH, neurological and psychiatric disorders were investigated as control group...
July 2017: Kardiologiia
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
#15
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/28879370/radiofrequency-facet-joint-denervation-in-the-lumbar-spine
#16
Doina Thomas, Klaus J Schnake
No abstract text is available yet for this article.
September 2017: European Spine Journal
https://www.readbyqxmd.com/read/28864691/efficacy-and-safety-of-renal-denervation-for-chinese-patients-with-resistant-hypertension-using-a-microirrigated-catheter-study-design-and-protocol-for-a-prospective-multicentre-randomised-controlled-trial
#17
Zongjun Liu, Li Shen, Weijian Huang, Xianxian Zhao, Weiyi Fang, Changqian Wang, Zhaofang Yin, Jianan Wang, Guosheng Fu, Xuebo Liu, Jianjun Jiang, Zhihui Zhang, Jingbo Li, Yingmin Lu, Junbo Ge
INTRODUCTION: Available data show that approximately 8%-18% of patients with primary hypertension will develop resistant hypertension. In recent years, catheter-based renal denervation (RDN) has emerged as a potential treatment option for resistant hypertension. A number of observational studies and randomised controlled trials among non-Chinese patients have demonstrated its potential safety and efficacy. METHODS AND ANALYSIS: This is a multicentre, randomised, open-label, parallel-group, active controlled trial that will investigate the efficacy and safety of a 5F saline-irrigated radiofrequency ablation (RFA) used for RDN in the treatment of Chinese patients with resistant hypertension...
September 1, 2017: BMJ Open
https://www.readbyqxmd.com/read/28807894/advances-in-the-diagnosis-and-management-of-neck-pain
#18
REVIEW
Steven P Cohen, W Michael Hooten
Neck pain imposes a considerable personal and socioeconomic burden-it is one of the top five chronic pain conditions in terms of prevalence and years lost to disability-yet it receives a fraction of the research funding given to low back pain. Although most acute episodes resolve spontaneously, more than a third of affected people still have low grade symptoms or recurrences more than one year later, with genetics and psychosocial factors being risk factors for persistence. Nearly half of people with chronic neck pain have mixed neuropathic-nociceptive symptoms or predominantly neuropathic symptoms...
August 14, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28741577/comparison-of-new-generation-renal-artery-denervation-systems-assessing-lesion-size-and-thermodynamics-using-a-thermochromic-liquid-crystal-phantom-model
#19
Sara I Al Raisi, Michael T Barry, Pierre Qian, Abhishek Bhaskaran, Jim Pouliopoulos, Pramesh Kovoor
AIM: To evaluate and compare lesion dimensions and thermodynamics of the new generation multi-electrode Symplicity Spyral and the new generation multi-electrode EnligHTN renal artery denervation systems, using a thermochromic liquid crystal phantom model. METHODS AND RESULTS: A previously described renal artery phantom model was used as a platform for radiofrequency ablation. A total of 32 radiofrequency ablations were performed using multi-electrode Symplicity Spyral (n=16) and new generation EnligHTN systems (n=16)...
July 25, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28694398/renal-sympathetic-denervation-assisted-treatment-of-electrical-storm-due-to-polymorphic-ventricular-tachycardia-in-a-patient-with-cathecolaminergic-polymorphic-ventricular-tachycardia
#20
Tolga Aksu, Tümer Erdem Güler, Kazım Serhan Özcan, Serdar Bozyel, Kıvanç Yalın
Electrical storm (ES) is not a rare clinical entity. Sympathetic hyperactivity may play critical role in development and continuation of ES. Some recent reports have demonstrated that catheter-based renal sympathetic denervation (RSD) may reduce sympathetic activation and have a potential role in reducing arrhythmic burden. A 46-year-old man was admitted to clinic with frequent implantable cardioverter defibrillator shocks and ES related to catecholaminergic polymorphic ventricular tachycardia (VT). Tachycardia was unresponsive to administration of beta-blockers, verapamil, and flecainide...
July 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
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