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Renal Denervation
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Book Synopsis Renal Denervation by : Richard R. Heuser
Download or read book Renal Denervation written by Richard R. Heuser and published by Springer. This book was released on 2014-11-11 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypertension remains the leading cause of cardiovascular morbidity and mortality in spite of current medical therapies. It has been estimated that 50% of Western civilization has hypertension and approximately 20% of patients have resistant hypertension. Renal denervation (RDN) is a minimally invasive, endovascular catheter based procedure using radiofrequency ablation aimed at treating resistant hypertension. Early studies show a high degree of effectiveness in renal denervation to treat hypertension. This book examines renal pathophysiology and the rationale for renal denervation, as well as possible long term benefits and risks of this new therapy. The myriad of devices involved in the evolution of this therapy are discussed and the book concludes with analyses of the cost effectiveness and future applications.
Book Synopsis Neural Control of Renal Function by : Ulla Kopp
Download or read book Neural Control of Renal Function written by Ulla Kopp and published by Morgan & Claypool Publishers. This book was released on 2011 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The kidney is innervated with efferent sympathetic nerve fibers reaching the renal vasculature, the tubules, the juxtaglomerular granular cells, and the renal pelvic wall. The renal sensory nerves are mainly found in the renal pelvic wall. Increases in efferent renal sympathetic nerve activity reduce renal blood flow and urinary sodium excretion by activation of α1-adrenoceptors and increase renin secretion rate by activation of β1-adrenoceptors. In response to normal physiological stimulation, changes in efferent renal sympathetic nerve activity contribute importantly to homeostatic regulation of sodium and water balance. The renal mechanosensory nerves are activated by stretch of the renal pelvic tissue produced by increases in renal pelvic tissue of a magnitude that may occur during increased urine flow rate. Activation of the sensory nerves elicits an inhibitory renorenal reflex response consisting of decreases in efferent renal sympathetic nerve activity leading to natriuresis. Increasing efferent sympathetic nerve activity increases afferent renal nerve activity which, in turn, decreases efferent renal sympathetic nerve activity by activation of the renorenal reflexes. Thus, activation of the afferent renal nerves buffers changes in efferent renal sympathetic nerve activity in the overall goal of maintaining sodium balance. In pathological conditions of sodium retention, impairment of the inhibitory renorenal reflexes contributes to an inappropriately increased efferent renal sympathetic nerve activity in the presence of sodium retention. In states of renal disease or injury, there is a shift from inhibitory to excitatory reflexes originating in the kidney. Studies in essential hypertensive patients have shown that renal denervation results in long-term reduction in arterial pressure, suggesting an important role for the efferent and afferent renal nerves in hypertension. Table of Contents: Part I: Efferent Renal Sympathetic Nerves / Introduction / Neuroanatomy / Neural Control of Renal Hemodynamics / Neural Control of Renal Tubular Function / Neural Control of Renin Secretion Rate / Part II: Afferent Renal Sensory Nerves / Introduction / Neuroanatomy / Renorenal Reflexes / Mechanisms Involved in the Activation of Afferent Renal Sensory Nerves / Part III: Pathophysiological States / Efferent Renal Sympathetic Nerves / Afferent Renal Sensory Nerves / Conclusions / References
Book Synopsis Renal denervation by : Flavio L. RIBICHINI
Download or read book Renal denervation written by Flavio L. RIBICHINI and published by Edizioni Minerva Medica SpA. This book was released on 2024-02-27 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Renal Denervation handbook is a practical “all you need to know” guide to treating patients with hypertension. Renal Denervation is a revolutionary, minimally invasive trans-catheter intervention that has emerged as a safe and effective therapeutic companion for the limited number of patients with resistant hypertension and the huge population of those who “resist” to take their prescribed medications. Written by the world’s most recognized experts in the field, the handbook provides a review of the scientific bases of the therapy, reveals practical instructions on how to select the right patients and perform the procedure, and analyzes clinical results in a direct, easy to understand style. This guide is the resource for all healthcare providers interested in the modern management of hypertension and successfully managing the number one risk factor for stroke, myocardial infarction, and heart failure worldwide.
Book Synopsis Renal Denervation by : Richard R. Heuser
Download or read book Renal Denervation written by Richard R. Heuser and published by Springer. This book was released on 2023-11-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensively revised edition examines renal pathophysiology and the rationale for renal denervation for the management of hypertension, as well as possible long-term benefits and risks of this therapy. Renal denervation is a minimally invasive, endovascular catheter-based procedure that makes use of radiofrequency ablation to treat resistant hypertension, with studies showing a high degree of effectiveness. The devices involved in the continued evolution of this therapy are discussed and the book incorporates analyses of the development of the technique while evaluating its cost effectiveness and future applications. Renal Denervation: A New Approach to Treatment of Resistant Hypertension describes the technique in detail, its advances and its pitfalls. While it has been estimated that 50% of Western civilization has hypertension and approximately 20% of patients have resistant hypertension, hypertension remains the leading cause of cardiovascular morbidity and mortality thus strengthening arguments to consider a wider range of potential solutions to manage these patients.
Book Synopsis Renal Denervation for Treatment-resistant Hypertension by :
Download or read book Renal Denervation for Treatment-resistant Hypertension written by and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypertension (high blood pressure) is a leading cause of stroke, cardiovascular and kidney disease. In most individuals with hypertension blood pressure can be managed through lifestyle changes and with drug therapies. However, a sub-group of those with hypertension have treatment-resistant hypertension. Resistant hypertension is elevated, above target blood pressure (140/90 mmHg, 130/80 mmHg in patients with diabetes, and 150/90 mmHg for patients over 80 years of age) that persists despite lifestyle and diet modifications and optimal doses of at least three concurrent antihypertensive agents of different categories, including a diuretic. Renal denervation is a catheter-based procedure that ablates afferent and efferent nerves in the renal arteries to decrease sympathetic nervous system activity and reduce blood pressure. The review of the safety and efficacy/effectiveness of RDN included 27 studies. Based on these studies, RDN using the Symplicity system appeared to be safe and well tolerated. The cost-effectiveness (specifically, cost-utility) of RDN was addressed in two published economic analyses and four conference abstracts, all originating from two industry-supported economic models. Both models were designed to assess the lifetime costs and consequences of treatment with RDN in a hypothetical patient population with an average age of approximately 60 years.
Book Synopsis Renal Vascular Disease by : Andrew C. Novick
Download or read book Renal Vascular Disease written by Andrew C. Novick and published by Saunders. This book was released on 1996 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reference text covering all aspects of renal disease, including: pathology, clinical features, imaging, hypertension, atherosclerotic disease, medical and surgical treatment.
Book Synopsis PanVascular Medicine by : Peter Lanzer
Download or read book PanVascular Medicine written by Peter Lanzer and published by Springer. This book was released on 2015-03-30 with total page 5004 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vascular management and care has become a truly multidisciplinary enterprise as the number of specialists involved in the treatment of patients with vascular diseases has steadily increased. While in the past, treatments were delivered by individual specialists, in the twenty-first century a team approach is without doubt the most effective strategy. In order to promote professional excellence in this dynamic and rapidly evolving field, a shared knowledge base and interdisciplinary standards need to be established. Pan Vascular Medicine, 2nd edition has been designed to offer such an interdisciplinary platform, providing vascular specialists with state-of-the art descriptive and procedural knowledge. Basic science, diagnostics, and therapy are all comprehensively covered. In a series of succinct, clearly written chapters, renowned specialists introduce and comment on the current international guidelines and present up-to-date reviews of all aspects of vascular care.
Book Synopsis Renal Denervation in the Medicare Population by : Tariq Shafi
Download or read book Renal Denervation in the Medicare Population written by Tariq Shafi and published by . This book was released on with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: BACKGROUND: Renal denervation refers to catheter-based radiofrequency ablation of renal sympathetic nerves, which may reduce blood pressure in patients with resistant hypertension, but data on its effectiveness are conflicting. PURPOSE: The purpose of this technical brief is to evaluate the effectiveness of renal denervation for resistant hypertension, and determine its applicability to the Medicare population. METHODS: We searched for relevant studies using PubMed and input from Key Informants and the experts on our team. Study eligibility criteria were defined in terms of population, intervention, comparison, outcomes, timing, and study design. Two reviewers independently reviewed each article. We reviewed articles if they reported a randomized controlled trial (RCT), a comparative cohort with at least 10 patients in each arm, or a non-comparative cohort with at least 25 patients. We defined between-group differences in 24-hour ambulatory systolic blood pressure as the primary metric for effectiveness of renal denervation. FINDINGS: We retrieved 1,233 unique citations from our literature search. We selected 83 studies (published in 98 articles) for abstraction; 9 were RCTs, 8 were comparative cohorts, and 66 were non-comparative cohorts. The study populations were only partially comparable to the Medicare-eligible population. In patients with resistant hypertension who continue to receive antihypertensive medications, renal denervation reduced 24-hour ambulatory systolic blood pressure, but the mean absolute change (between-group difference) was small in RCTs (range: -8.0 mm Hg to +2.1 mm Hg). The within-group differences in office systolic blood pressure were higher than the between-group differences for renal denervation in RCTs and comparative cohorts (-42.0 mm Hg to -8 mm Hg) as well as in non-comparative cohorts (range -58.2 mm Hg to 12 mm Hg), likely overestimating the effect of renal denervation due to white coat effect, observation bias, and placebo effect. Data were scant on clinical endpoints, such as stroke, myocardial infarction, kidney events, hospitalization, or death. Adverse effects were uncommon but potentially serious, and included hematomas, pseudoaneurysms, and renal artery interventions.
Book Synopsis Function of Renal Sympathetic Nerves by : Yutang Wang
Download or read book Function of Renal Sympathetic Nerves written by Yutang Wang and published by Frontiers Media SA. This book was released on 2017-10-18 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sympathetic overactivity is associated with the development of hypertension. Renal denervation (RDN) prevents or delays hypertension in a variety of animal models, which laid the groundwork for the introduction of RDN as a clinical therapy in humans. In 2007, a novel, minimally invasive RDN ablation catheter was first trialled in hypertensive patients, with a 93% success rate of lowering blood pressure for at least three years post-RDN. However, a large scale, sham-controlled clinical trial (Symplicity HTN -3) failed to show reductions in BP greater than sham. The aim of this research topic was to evaluate the efficacy and safety of RDN, to explore the contribution of both afferent and efferent renal nerve activity to hypertension and non-hypertension disorders, and to stimulate future research to better understand the function of the renal nerves and the effects of RDN by highlighting gaps in knowledge.
Book Synopsis Tumor Ablation by : Eric van Sonnenberg
Download or read book Tumor Ablation written by Eric van Sonnenberg and published by Springer Science & Business Media. This book was released on 2008-09-08 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an enormous sense of excitement in the communities of cancer research and cancer care as we move into the middle third of the ?rst decade of the 21st century. For the ?rst time,there is a true sense of c- ?dence that the tools provided by the human genome project will enable cancer researchers to crack the code of genomic abnormalities that allow tumor cells to live within the body and provide highly speci?c, virtually non-toxic therapies for the eradication,or at least ?rm control of human cancers. There is also good reason to hope that these same lines of inquiry will yield better tests for screening, early detection, and prev- tion of progression beyond curability. While these developments provide a legitimate basis for much op- mism, many patients will continue to develop cancers and suffer from their debilitating effects, even as research moves ahead. For these in- viduals, it is imperative that the cancer ?eld make the best possible use of the tools available to provide present day cancer patients with the best chances for cure, effective palliation, or, at the very least, relief from symptoms caused by acute intercurrent complications of cancer. A modality that has emerged as a very useful approach to at least some of these goals is tumor ablation by the use of physical or physiochemical approaches.
Book Synopsis Renal Denervation for Resistant Hypertension by :
Download or read book Renal Denervation for Resistant Hypertension written by and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Renal denervation is a technology that uses radio frequency energy to ablate the nerves surrounding the renal arteries in order to reduce blood pressure in patients whose hypertension is resistant to medical therapy. There is evidence, based mainly on observational data that this procedure results in a clinically significant reduction in blood pressure at 6 months. Weaker evidence suggests that the effect is sustained up to 2 years of follow-up. Some side-effects, none unmanageable or permanent, are reported. It is recommended that this technology receive temporary (two-year) and conditional approval for use only in the context of a formal research study to be supported by the manufacturer as specified"--page iv.
Download or read book Hypertension written by Sunil Nadar and published by . This book was released on 2015 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: The management of hypertension varies considerably from clinician to clinician. This pocketbook is a concise and evidence-based summary of current understanding and practice, including the most up-to-date guidance from national bodies and their recommendations for hypertension care. An essential tool for everyday use in managing hypertension, this book covers the different phases of investigation and definitive management, and aids clinical decision-making by collating all the relevant information and guidance in one easily accessible place.
Book Synopsis Essential Manual of 24 Hour Blood Pressure Management by : Kazuomi Kario
Download or read book Essential Manual of 24 Hour Blood Pressure Management written by Kazuomi Kario and published by John Wiley & Sons. This book was released on 2015-05-06 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well known that cardiovascular events occur more frequently in the morning as blood pressure (BP) levels have been shown to increase during the period from night to early morning. In recent years, clinical research using ambulatory blood pressure monitoring (ABPM) or home BP monitoring has clarified that morning BP and BP surge are more closely related to the cardiovascular risk than clinical BP. This practical manual from field leading expert, Dr. Kazuomi Kario, reviews recent evidence on morning and nocturnal hypertension and the IT technologies physicians can use to support patients in home monitoring BP. Guidance on management via antihypertensive drugs is also discussed and with the aim of promoting perfect 24 hour BP control.
Book Synopsis Resistant Hypertension by : Giuseppe Mancia
Download or read book Resistant Hypertension written by Giuseppe Mancia and published by Springer Science & Business Media. This book was released on 2013-07-23 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: A growing number of people suffer from so-called resistant hypertension, that is to say, high blood pressure that does not respond to treatment. This disorder is of great current interest and importance for public health, being a common clinical problem faced by both primary care clinicians and specialists. Furthermore, as older age and obesity are among the strongest risk factors for uncontrolled hypertension, the incidence of resistant hypertension will likely increase as the population becomes more elderly and heavier. While the prognosis of resistant hypertension is unknown, cardiovascular risk is undoubtedly increased since patients often have a history of long-standing, severe hypertension complicated by multiple other cardiovascular risk factors. This volume, compiled by a panel of world-renowned experts, offers a comprehensive exploration of resistant hypertension, covering epidemiology, complex diagnostic aspects, and the therapeutic options currently available, with due attention to overall treatment strategies. New therapeutic agents and procedures, such as renal denervation and baroreceptor stimulation, are also described. In addition, the book addresses the economic aspects of resistant hypertension and the role of the different professional figures, from GPs to hypertension specialists, in dealing with it.
Book Synopsis Cardio-Nephrology by : Janani Rangaswami
Download or read book Cardio-Nephrology written by Janani Rangaswami and published by Springer. This book was released on 2017-07-31 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extending from the outpatient management of cardiovascular and kidney disease, to hospital-based decision making in patients with cardio-renal disease and complex interfaces such as hemodialysis in patients with ventricular assist device support, this book serves as a single reference point for cardiology and nephrology clinicians and researchers dealing with the significant overlap areas between these two specialties. Chapters cover the physiology, biomarkers, therapeutic agents and full spectrum of these comorbidities and feature separate sections on cardiovascular and CKD evaluations, stratification of kidney transplant patients, lipid management in CKD, interventional strategies and hypertension. Leaders in cardiology, nephrology, hypertension and lipidology bring together the latest evidence with their collective clinical experience into this invaluable resource.This textbook is an essential resource for physicians and allied professionals practicing cardiology, nephrology, students and physician trainees, to deepen their understanding of this crucial field.
Book Synopsis Renal Denervation for Resistant Hypertension by : Ioana Nicolau
Download or read book Renal Denervation for Resistant Hypertension written by Ioana Nicolau and published by . This book was released on 2014 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Renal denervation is a technology that uses radio frequency energy to ablate the nerves surrounding the renal arteries in order to reduce blood pressure in patients whose hypertension is resistant to medical therapy. There is evidence, based mainly on observational data that this procedure results in a clinically significant reduction in blood pressure at 6 months. Weaker evidence suggests that the effect is sustained up to 2 years of follow-up. Some side-effects, none unmanageable or permanent, are reported. It is recommended that this technology receive temporary (two-year) and conditional approval for use only in the context of a formal research study to be supported by the manufacturer as specified"--page iv.
Book Synopsis Cancer Biology and Therapeutics by : Joseph G. Cory
Download or read book Cancer Biology and Therapeutics written by Joseph G. Cory and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: In anticipation of the opening of the H. Lee Moffitt Cancer Center and Research lnstitut~ on the campus of the University of South Florida, an international symposium, "The First Annual H. Lee Moffitt Symposium on Cancer Biology and Therapeutics" was held in Tampa, Florida on January 20-22, 1986. In this first symposium we decided to present a broad-based series of topics dealing with the major issues in the field of cancer. These topics ranged from the biochemistry of the cancer cell to the design of antineoplastic agents, through tumor cell heterogeneity, treatment of ltuman neoplasms to immunological aspects of cancer biology and tr~atment. The speakers chosen represented individuals of international acclaim who are very active in the area of cancer research and treatment. The symposium brought together scien tists/physicians from six nations including Austria, Canada, France, Hungary, West Germany, and of course, the United States. The congeniality of the participants promoted the friendly exchange of knowledge which, it is hoped, will greatly hasten the time when successful management of human cancer will become routine. Future symposia in this series will be highly focused and will deal with a single facet of this vast field of cancer research and treatment. Joseph G. Cory, Editor Andor Szentivanyi, Editor University of South Florida, 1986 V ACKNOWLEDGMENTS This volume presents the Proceedings of the H. Lee Moffitt International Syn~osium on Cancer Biology and Therapeutics which was held in Tampa, Florida on January 20, 21, and 22, 1986.
