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Denervation radiofrequency

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https://www.readbyqxmd.com/read/28202630/targets-and-end-points-in-cardiac-autonomic-denervation-procedures
#1
Esteban W Rivarola, Denise Hachul, Tan Wu, Cristiano Pisani, Carina Hardy, Fabrizio Raimundi, Sissy Melo, Francisco Darrieux, Mauricio Scanavacca
BACKGROUND: Autonomic denervation is an alternative approach for patients with symptomatic bradycardia. No consensus exists on the critical targets and end points of the procedure. The aim of this study was to identify immediate end points and critical atrial regions responsible for vagal denervation. METHODS AND RESULTS: We enrolled 14 patients (50% men; age: 34.0±13.8 years) with cardioinhibitory syncope, advanced atrioventricular block or sinus arrest, and no structural heart disease...
February 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28159317/novel-treatment-protocol-for-ameliorating-refractory-chronic-pain-in-patients-with-autosomal-dominant-polycystic-kidney-disease
#2
Niek F Casteleijn, Maatje D A van Gastel, Peter J Blankestijn, Joost P H Drenth, Rosa L de Jager, Anna M Leliveld, Ruud Stellema, Andreas P Wolff, Gerbrand J Groen, Ron T Gansevoort
Autosomal dominant polycystic kidney disease (ADPKD) patients can suffer from chronic pain that can be refractory to conventional treatment, resulting in a wish for nephrectomy. This study aimed to evaluate the effect of a multidisciplinary treatment protocol with sequential nerve blocks on pain relief in ADPKD patients with refractory chronic pain. As a first step a diagnostic, temporary celiac plexus block with local anesthetics was performed. If substantial pain relief was obtained, the assumption was that pain was relayed via the celiac plexus and major splanchnic nerves...
January 31, 2017: Kidney International
https://www.readbyqxmd.com/read/28106018/cardioneuroablation-in-the-treatment-of-neurally-mediated-reflex-syncope-a-review-of-the-current-literature
#3
Tolga Aksu, Tümer Erdem Güler, Serdar Bozyel, Kazım Serhan Özcan, Kıvanç Yalın, Ferit Onur Mutluer
OBJECTIVE: An imbalance between parasympathetic and sympathetic tone is a main cause of neurally mediated reflex syncope (NMRS). These patients may be very symptomatic and the condition may require cardiac pacemaker implantation. Cardioneuroablation (CNA) is a relatively novel technique based on radiofrequency ablation of vagal ganglia that can be used in treatment of NMRS. The aim of this analysis was to compare potential role of CNA in patients with NMRS. METHODS: In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Statement, literature search was conducted using the keywords "cardioneuroablation," "vagal denervation," "reflex syncope," "vagal ablation," and "ganglionic plexi ablation...
December 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28079050/bipolar-radiofrequency-renal-denervation-with-the-vessix-catheter-in-patients-with-resistant-hypertension-2-year-results-from-the-reduce-htn-trial
#4
H Sievert, J Schofer, J Ormiston, U C Hoppe, I T Meredith, D L Walters, M Azizi, J Diaz-Cartelle
No abstract text is available yet for this article.
January 12, 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/27970156/tct-768-histopathological-features-of-transcatheter-renal-denervation-by-radiofrequency-ablation-compared-to-the-effects-following-chemical-ablation-by-perivascular-delivery-of-a-novel-neurotropic-agent-a-preclinical-perspective
#5
Armando Tellez, Krista N Dillon, Emily A Stein, K T Rao, Dane A Brady, Serge Rousselle
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27922849/renal-denervation-for-uncontrolled-hypertension-critical-review-of-the-evidence
#6
Chongjia Chen, Ashish Upadhyay
PURPOSE OF REVIEW: Hypertension (HTN) is a major global public health problem. Endovascular catheter-based radiofrequency ablation of renal sympathetic nerve endings (renal denervation) is a novel treatment option for uncontrolled HTN. RECENT FINDINGS: Early clinical studies primarily in Australia and Europe established renal denervation as a well tolerated and feasible procedure that resulted in a sustained reduction in blood pressure among individuals with severe resistant HTN...
March 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/27916745/transcatheter-non-contact-microwave-ablation-may-enable-circumferential-renal-artery-denervation-while-sparing-the-vessel-intima-and-media
#7
Pierre C Qian, Michael A Barry, Sara Al-Raisi, Pramesh Kovoor, Jim Pouliopoulos, Chrishan J Nalliah, Abhishek Bhaskaran, William Chik, Rahul Kurup, Virginia James, Winny Varikatt, Alistair McEwan, Aravinda Thiagalingam, Stuart P Thomas
AIMS: Trials of transcatheter renal artery denervation (RDN) have failed to show consistent antihypertensive efficacy. Procedural factors and limitations of radiofrequency ablation can lead to incomplete denervation. The aim of the study was to show that non-contact microwave catheter ablation could produce deep circumferential perivascular heating while avoiding injury to the renal artery intima and media. METHODS AND RESULTS: A novel microwave catheter was designed and tested in a renal artery model consisting of layers of phantom materials embedded with a thermochromic liquid crystal sheet, colour range 50-78°C...
February 3, 2017: EuroIntervention
https://www.readbyqxmd.com/read/27890862/randomised-blinded-and-controlled-comparative-study-of-chemical-and-radiofrequency-based-renal-denervation-in-a-porcine-model
#8
Stefan Bertog, Tim A Fischel, Félix Vega, Vartan Ghazarossian, Atul Pathak, Laura Vaskelyte, Darrin Kent, Horst Sievert, Elena Ladich, Kazuyuki Yahagi, Renu Virmani
AIMS: The blood pressure-lowering effect of percutaneous renal denervation (RDN) is controversial. The success of RDN may be device-dependent. We sought to compare the efficacy of RDN by chemical neurolysis using alcohol (Peregrine System Infusion Catheter; Ablative Solutions, Inc., Menlo Park, CA, USA) to RDN by radiofrequency (RF) ablation with the single-electrode RF catheter (Symplicity Flex; Medtronic, Minneapolis, MN, USA) in a porcine model. METHODS AND RESULTS: This was a prospective, randomised, blinded study...
February 3, 2017: EuroIntervention
https://www.readbyqxmd.com/read/27735104/a-modified-posterolateral-approach-for-radiofrequency-denervation-of-the-medial-branch-of-the-cervical-segmental-nerve-in-cervical-facet-joint-pain-based-on-anatomical-considerations
#9
Maarten van Eerd, Arno Lataster, Micha Sommer, Jacob Patijn, Maarten van Kleef
The cervical facet joints, also called the zygapophyseal joints, are a potential source of neck pain (cervical facet joint pain). The cervical facet joints are innervated by the cervical medial branches (CMBs) of the cervical segmental nerves. Cervical facet joint pain has been shown to respond to multisegmental radiofrequency denervation of the cervical medial branches. This procedure is performed under fluoroscopic guidance. Currently, three approaches are described and used. Those three techniques of radiofrequency treatment of the CMBs, classified on the base of the needle trajectory toward the anatomical planes, are as follows: the posterolateral technique, the posterior technique, and the lateral technique...
October 13, 2016: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/27673128/poster-374-sexual-dysfunction-after-sacroiliac-joint-radiofrequency-denervation-a-case-report
#10
Ada Lyn Yao, Charles A Odonkor, David Taftian, Akhil Chhatre
No abstract text is available yet for this article.
September 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27636921/-criteria-for-selecting-patients-with-resistant-hypertension-for-a-renal-sympathetic-denervation
#11
T M Ripp, T Yu Rebrova, V F Mordovin, S A Afanas'ev, S E Pekarsky, G V Semke, A Yu Fal'kovskaya, V A Lichikaki, E V Tsymbalyuk
AIM: to define and develop a procedure that can select patients with resistant hypertension (RH) for a renal sympathetic denervation (RSD) procedure, by being orienting to the specific initial values of β-adrenoreactivity (β-AR) and systolic blood pressure (SBP). SUBJECTS AND METHODS: The analysis included 23 RH patients receiving the maximally tolerable doses of 4 antihypertensive drugs. The investigations involving BP control and a Russian spectrophotometric procedure for determining β-AR in terms of the change in the osmoresistance of erythrocyte membranes (EM) were performed at baseline and 4 and 24 weeks...
2016: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/27636920/-possibility-of-evaluating-the-effectiveness-of-renal-artery-sympathetic-denervation-in-resistant-hypertension-early-after-radiofrequency-ablation
#12
T Yu Rebrova, T M Ripp, S A Afanas'ev, V F Mordovin, E F Muslimova
AIM: to investigate time course of changes in the adrenoreactivity (AR) of erythrocyte membranes (EM) after radiofrequency ablation of the synaptic nerves of the renal arteries (RA) in patients with resistant hypertension (RH) and to assess whether this indicator can be used for the early evaluation of the efficiency of an invasive intervention into the RA. SUBJECTS AND METHODS: 24 patients with RH, who received full-dose antihypertensive therapy with at least three drugs, including a diuretic, were examined...
2016: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/27618781/percutaneous-radiofrequency-facet-capsule-denervation-as-an-alternative-target-in-lumbar-facet-syndrome
#13
Wael Mohamed Mohamed Moussa, Wael Khedr
OBJECTIVES: Percutaneous radiofrequency denervation of the medial dorsal branch is often used in chronic low back pain of intervertebral facet etiology, which is sometimes difficult to perform and recurrence of pain often ensues. We theorized that shifting the target of RF coagulation to the facet joint capsule would provide an easier target and a longer-lived pain relieving response. PATIENTS AND METHODS: A prospective randomized controlled trial where 120 patients diagnosed with CLBP of a confirmed facet origin were randomly divided into three equal groups, the first was submitted to percutaneous radiofrequency coagulation of the facet joint capsule, the second underwent percuataneous denervation of the medial dorsal branch and the third did not receive radiofrequency lesioning...
November 2016: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/27617388/anatomical-and-procedural-determinants-of-catheter-based-renal-denervation
#14
Sebastian Ewen, Christian Ukena, Thomas Felix Lüscher, Martin Bergmann, Peter J Blankestijn, Erwin Blessing, Bodo Cremers, Oliver Dörr, Dagmara Hering, Lukas Kaiser, Holger Nef, Elias Noory, Markus Schlaich, Faisal Sharif, Isabella Sudano, Britta Vogel, Michiel Voskuil, Thomas Zeller, Abraham R Tzafriri, Elazer R Edelman, Lucas Lauder, Bruno Scheller, Michael Böhm, Felix Mahfoud
BACKGROUND/PURPOSE: Catheter-based renal sympathetic denervation (RDN) can reduce blood pressure (BP) and sympathetic activity in certain patients with uncontrolled hypertension. Less is known about the impact of renal anatomy and procedural parameters on subsequent BP response. METHODS/MATERIALS: A total of 564 patients with resistant hypertension underwent bilateral RDN in 9 centers in Europe and Australia using a mono-electrode radiofrequency catheter (Symplicity Flex, Medtronic)...
October 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/27551419/-simplicity-radiofrequency-neurotomy-of-sacroiliac-joint-a-real-life-1-year-follow-up-uk-data
#15
Vinay S Anjana Reddy, Chhaya Sharma, Kuang-Yi Chang, Vivek Mehta
BACKGROUND: Sacroiliac joint (SIJ) pain is considered to be the third most common cause of low back pain with the prevalence of 13-25% in all low back pain patients. Its diagnosis and treatment remain a challenge with the poor evidence base for interventional procedures. Patients with SIJ pain experience a low quality of life, worse than some of the chronic health conditions. Simplicity radiofrequency (RF) neurotomy is a novel technique which tackles some of the problems faced by conventional RF neurotomy and may offer better results in managing pain arising from SIJ...
May 2016: British Journal of Pain
https://www.readbyqxmd.com/read/27538721/sympathoinhibitory-effect-of-radiofrequency-renal-denervation-in-spontaneously-hypertensive-rats-with-established-hypertension
#16
Juan Gao, Edmund K Kerut, Frank Smart, Akemi Katsurada, Dale Seth, L Gabriel Navar, Daniel R Kapusta
BACKGROUND: Radiofrequency ablation of the renal arteries (RF-ABL) has been shown to decrease blood pressure (BP) in drug-resistant hypertensive patients who receive antihypertensive drug therapy. However, there remain questions regarding how RF-ABL influences BP independent of drug therapy and whether complete renal denervation is necessary to maximally lower BP. To study these questions, we examined the cardiovascular, sympathetic, and renal effects produced by RF-ABL of the proximal renal arteries in spontaneously hypertensive rats (SHR) with established hypertension...
August 18, 2016: American Journal of Hypertension
https://www.readbyqxmd.com/read/27529585/resistant-hypertension-comparison-of-unifocal-versus-multifocal-radiofrequency-ablation-for-renal-denervation-up-to-24months-follow-up
#17
Dirk Prochnau, Christina Schweizer, Matthias Hoyme, Hans-Reiner Figulla, P Christian Schulze, Ralf Surber
No abstract text is available yet for this article.
November 15, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27528372/renal-denervation-in-patients-with-loin-pain-hematuria-syndrome
#18
Bhanu Prasad, Shelley Giebel, Francisco Garcia, Kunal Goyal, Jennifer Rose St Onge
Loin pain hematuria syndrome (LPHS) is a painful and incapacitating condition that typically affects young women. Treatment options, including opiates and/or surgical denervation of the renal nerves by autotransplantation, have variable success. In this report, we describe the successful use of endovascular renal nerve ablation in this population. Four women with LPHS and intractable pain unresponsive to conservative measures underwent endovascular ablation of the renal nerves between July and November 2015 using the Vessix renal denervation system...
January 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/27493150/accessory-renal-arteries-prevalence-in-resistant-hypertension-and-an-important-role-in-nonresponse-to-radiofrequency-renal-denervation
#19
Paige VonAchen, Jason Hamann, Thomas Houghland, John R Lesser, Yale Wang, David Caye, Kristi Rosenthal, Ross F Garberich, Mary Daniels, Robert S Schwartz
OBJECTIVE: The aim of this study was to understand the role of accessory renal arteries in resistant hypertension, and to establish their role in nonresponse to radiofrequency renal denervation (RDN) procedures. BACKGROUND: Prior studies suggest a role for accessory renal arteries in hypertensive syndromes, and recent clinical trials of renal denervation report that these anomalies are highly prevalent in resistant hypertension. This study evaluated the relationships among resistant hypertension, accessory renal arteries, and the response to radiofrequency (RF) renal denervation...
October 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/27442000/an-investigation-on-the-effect-of-improved-x-rays-guided-radiofrequency-thermocoagulation-denervation-on-lumbar-facet-joint-syndrome
#20
Qin Zhou, Fang Zhou, Long Wang, Kang Liu
OBJECTIVES: This study aims to observe the clinical efficacy and feasibility of improved X-rays-guided radiofrequency thermocoagulation denervation for treating low back pain secondary to lumbar facet joint syndrome (LFJS). PATIENTS AND METHODS: Eighty LFJS patients were randomly assigned into two groups: the denervation group (n=40), treated with percutaneous radiofrequency thermocoagulation denervation on the lumbar facet joint, and the control group (n=40), injected with betamethasone and lidocaine into the lumbar facet joint...
September 2016: Clinical Neurology and Neurosurgery
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