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Denervation radiofrequency

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https://www.readbyqxmd.com/read/29765790/direct-posterior-bipolar-cervical-facet-radiofrequency-rhizotomy-a-simpler-and-safer-approach-to-denervate-the-facet-capsule
#1
Ovidiu Palea, Haroon M Andar, Ramon Lugo, Michelle Granville, Robert E Jacobson
Radiofrequency cervical rhizotomy has been shown to be effective for the relief of chronic neck pain, whether it be due to soft tissue injury, cervical spondylosis, or post-cervical spine surgery. The target and technique have traditionally been taught using an oblique approach to the anterior lateral capsule of the cervical facet joint. The goal is to position the electrode at the proximal location of the recurrent branch after it leaves the exiting nerve root and loops back to the cervical facet joint. The standard oblique approach to the recurrent nerve requires the testing of both motor and sensory components to verify the correct position and ensure safety so as to not damage the slightly more anterior nerve root...
March 14, 2018: Curēus
https://www.readbyqxmd.com/read/29741743/radiofrequency-denervation-improves-health-related-quality-of-life-in-patients-with-thoracic-zygapophyseal-joint-pain
#2
Johan Hambraeus, Kjerstin S Hambraeus, Jan Persson
Objective: To describe a practical approach for the diagnosis and treatment of thoracic zygapophyseal joint pain and to present preliminary clinical data on the effects of this treatment approach on health-related quality of life. Design: An observational study. Setting: Specialist outpatient pain clinic in northern Sweden. Subjects: Patients with long-term thoracic pain. Methods: We describe a method of radiofrequency denervation of thoracic zygapophyseal joints...
May 1, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29611171/percutaneous-renal-artery-denervation-in-patients-with-chronic-systolic-heart-failure-a-randomized-controlled-trial
#3
Jun-Qing Gao, Wei Yang, Zong-Jun Liu
B: ACKGROUND: Renal denervation (RDN) is as an effective treatment for heart failure, but its effects on cardiac function of patients with heart failure (HF) are not well documented. Here, the aim was to investigate RDN's effect on patients with chronic systolic HF, by conducting a single-center, prospective, randomized, and controlled study. M: ETHODS: Sixty patients with chronic systolic HF were randomly assigned to the RDN or control groups, receiving percutaneous catheter-based RDN with radiofrequency ablation and drug treatment respectively...
April 3, 2018: Cardiology Journal
https://www.readbyqxmd.com/read/29603776/selective-bladder-denervation-for-overactive-bladder-oab-syndrome-from-concept-to-healing-outcomes-using-the-ovine-model
#4
James Fugett, Lynette Phillips, Emily Tobin, Eric Whitbrook, Haydon Bennett, Joshua Shrout, James E Coad
AIMS: We evaluated a Selective Bladder Denervation (SBD) device, which uses radiofrequency ablation, for the treatment of overactive bladder syndrome in terms of its nerve denervation, ablation characteristics, and post-treatment healing. METHODS: Using the SBD device, eight fresh extirpated ovine bladder trigones were treated (90°C set point for 60 s) and nitroblue tetrazolium viability stained to characterize the ablation. In addition, 12 trigones were treated in vivo with three adjacent ablations and divided into survival cohorts: Day 7, Day 30, and Day 90 to assess the ablations and their associated healing...
March 31, 2018: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29579232/guidelines-for-composing-and-assessing-a-paper-on-the-treatment-of-pain-a-practical-application-of-evidence-based-medicine-principles-to-the-mint-randomized-clinical-trials
#5
Zachary L McCormick, Yakov Vorobeychik, Jatinder S Gill, Ming-Chih J Kao, Belinda Duszynski, Matthew Smuck, Milan P Stojanovic
Objective: To perform a thorough assessment of the recently published Mint Trials in order to illustrate how to read and analyze a study critically, according to principles of evidence-based medicine. Design: Narrative review. Method: We have applied the recently published guidelines for composing and assessing studies on the treatment of pain to a recently published article describing a large study that claimed its "findings do not support the use of radiofrequency denervation to treat chronic low back pain...
March 20, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29557887/anatomical-study-of-the-innervation-of-anterior-knee-joint-capsule-implication-for-image-guided-intervention
#6
John Tran, Philip W H Peng, Karen Lam, Ehtesham Baig, Anne M R Agur, Michael Gofeld
BACKGROUND AND OBJECTIVES: The knee joint is the most common site of osteoarthritis. While joint replacement is considered an ultimate solution, radiofrequency denervation may be contemplated in some cases. Radiofrequency ablation requires precise localization of the articular branches innervating the joint capsule. The objective of this cadaveric study was to determine the source, course, relationships, and frequency of articular branches innervating the anterior knee joint capsule. METHODS: Fifteen knees were meticulously dissected...
May 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29555535/anatomical-and-procedural-determinants-of-ambulatory-blood-pressure-lowering-following-catheter-based-renal-denervation-using-radiofrequency
#7
Lucas Lauder, Sebastian Ewen, Abraham R Tzafriri, Elazer R Edelman, Bodo Cremers, Saarraaken Kulenthiran, Christian Ukena, Dominik Linz, Ingrid Kindermann, Costas Tsioufis, Bruno Scheller, Michael Böhm, Felix Mahfoud
BACKGROUND/PURPOSE: Catheter-based renal sympathetic denervation (RDN) has been introduced to lower blood pressure (BP) and sympathetic activity in patients with uncontrolled hypertension with at best equivocal results. It has been postulated that anatomic and procedural elements introduce unaccounted variability and yet little is known of the impact of renal anatomy and procedural parameters on BP response to RDN. METHODS/MATERIALS: Anatomical parameters such as length and diameter were analyzed by quantitative vascular analysis and the prevalence of accessory renal arteries and renal artery disease were documented in 150 patients with resistant hypertension undergoing bilateral RDN using a mono-electrode radiofrequency catheter (Symplicity Flex, Medtronic)...
March 2, 2018: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29479013/renal-denervation-for-ventricular-arrhythmia-in-patients-with-implantable-cardioverter-defibrillators
#8
Zhixin Jiang, Xiujuan Zhou, Chun Chen, Ying Wang, Ping Fang, Jie Geng, Gang Zhang, Qijun Shan
To investigate the efficacy of renal denervation (RDN) on the recurrence of ventricular arrhythmia (VA) in Asian patients with implantable cardioverter defibrillators (ICDs).Eight ICD patients with recurrent VA episodes underwent RDN using an off-the-shelf saline-irrigated catheter. The pre- and postprocedural VA episodes were counted via ICD interrogation. All patients underwent successful RDN without any complications related to radiofrequency catheter ablation. The median follow-up was 15 months (range 6-30), and the median VA episodes per month were significantly reduced from 3...
March 30, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29468341/mri-based-detection-of-renal-artery-abnormalities-related-to-renal-denervation-by-catheter-based-radiofrequency-ablation-in-drug-resistant-hypertensive-patients
#9
Monica Sigovan, Salim Si-Mohamed, Pierre-Yves Courand, Brahim Harbaoui, Marc Sapoval, Sébastien Bros, Philippe C Douek, Pierre Lantelme, Loic Boussel
OBJECTIVES: Endovascular renal denervation (RDN) using catheter-based radiofrequency (RF) ablation has emerged as a potential treatment option for drug-resistant hypertension. Its efficacy is currently under debate. We aimed to evaluate the capability of contrast-enhanced magnetic resonance imaging (MRI) to assess the effects of RDN on the renal arterial wall in patients presenting with drug-resistant hypertension. METHODS: Patients were included prospectively following institutional review board approval and written informed consent...
February 21, 2018: European Radiology
https://www.readbyqxmd.com/read/29440276/accurate-depth-of-radiofrequency-induced-lesions-in-renal-sympathetic-denervation-based-on-a-fine-histological-sectioning-approach-in-a-porcine-model
#10
Atsushi Sakaoka, Hisako Terao, Shintaro Nakamura, Hitomi Hagiwara, Toshihito Furukawa, Kiyoshi Matsumura, Kenichi Sakakura
BACKGROUND: Ablation lesion depth caused by radiofrequency-based renal denervation (RDN) was limited to <4 mm in previous animal studies, suggesting that radiofrequency-RDN cannot ablate a substantial percentage of renal sympathetic nerves. We aimed to define the true lesion depth achieved with radiofrequency-RDN using a fine sectioning method and to investigate biophysical parameters that could predict lesion depth. METHODS AND RESULTS: Radiofrequency was delivered to 87 sites in 14 renal arteries from 9 farm pigs at various ablation settings: 2, 4, 6, and 9 W for 60 seconds and 6 W for 120 seconds...
February 2018: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29395104/renal-denervation-as-a-second-line-option-in-a-patient-with-electrical-storm-resistant-to-medical-treatment-and-conventional-radiofrequency-catheter-ablation
#11
Dirk Prochnau, Matthias Hoyme
Electrical storm (ES) represents a critical state of electrical instability. We describe a patient with coronary artery disease, mechanical aortic valve replacement, and reduced left ventricular function with recurrent ICD shocks. Despite medical treatment with beta-blocker and amiodarone, and after successful ablation of different VT morphologies in combination with substrate modification, ES could not be controlled. We performed renal denervation (RDN) to reduce arrhythmic burden. Thereafter, patient remained free from sustained and non-sustained VTs at 6-month follow-up...
January 30, 2018: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29351958/recent-data-from-radiofrequency-denervation-trials-further-emphasise-that-treating-nociception-is-not-the-same-as-treating-pain
#12
Matthew K Bagg, James H McAuley, G Lorimer Moseley, Benedict Martin Wand
No abstract text is available yet for this article.
January 19, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29287767/resistant-hypertension-renal-denervation-or-intensified-medical-treatment
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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