Download or read book Microcirculation in Chronic Venous Insufficiency written by K. Messmer and published by Karger Medical and Scientific Publishers. This book was released on 1999 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: TThis volume contains expert articles on the physiology and function of the microvascular and microlymphatic systems, the physiology of microvascular fluid filtration and reabsorption, interactions between blood cells and the microvascular endothelium, and molecular mechanisms of leukocyte activation. The therapeutic goals in chronic venous insufficiency include reduction of postischemic leukocyte-endothelial cell interaction, repair of microvascular barrier and improvement of microlymphatic drainage. In addition to measures to counteract inflammatory reactions elicited by local ischemia, surgical procedures such as transplantation of lymph vessels and subfascial division of perforating veins by an endoscopic approach are reviewed. Written by leading experts in the field, this book provides the first synopsis of the role of microcirculatory disturbances in chronic venous insufficiency. It will be of particular interest to phlebologists, angiologists, dermatologists, gerontologists, vascular, plastic and reconstructive surgeons, and general physicians.
Download or read book Microcirculation in Venous Disease written by Philip David Coleridge Smith and published by R. G. Landes. This book was released on 1994 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanisms of Vascular Disease written by Robert Fitridge and published by University of Adelaide Press. This book was released on 2011 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: New updated edition first published with Cambridge University Press. This new edition includes 29 chapters on topics as diverse as pathophysiology of atherosclerosis, vascular haemodynamics, haemostasis, thrombophilia and post-amputation pain syndromes.
Download or read book Return Circulation and Norepinephrine written by Paul M. Vanhoutte and published by John Libbey Eurotext. This book was released on 1991 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sums up the impact of various factors on the return circulation to the heart. Studies are presented on the impact of oestrogen on the veins, while clinical studies aim to offer a clear overview of the interactions between the different hormonal systems and venous functions.
Download or read book Clinical Investigation of the Microcirculation written by John E. Tooke and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1628 William Harvey published his discovery of the existence of the microcirculation which he deduced from careful anatomical and physiological study. Thirty-three years later, Malpighi confirmed the presence of capillaries through direct microscopical observation. Subsequent scientific advance has been slow, and in view of the fact that microvascular in the genesis and expression of many pathophysiology may be implicated diseases, our know ledge of human microvascular function is surprisingly limited. This ignorance attests to the difficulty of studying something that is both minute and inaccessible without disturbing the quantity that is being measured. In the last fifteen years, however, direct techniques have been developed for studying human microvascular pressure, flow and permeability. These methods have provided new insights into human microvascular function in health and disease. At the same time there has been a steady growth of new indirect techniques based on a w ide range of physical principles that reflect some or other aspect of microvascular function.
Download or read book Chronic Venous Insufficiency written by Jeffrey L. Ballard and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chronic venous insufficiency, manifesting as disabling open leg ulcers, lipodermatosclerosis and severe cutaneous hyperpigmentation is thought to affect five percent of the population over age 80 and a significant proportion, probably greater than one percent, of Western populations under age 65. To date little has been known about how to treat this condition cost-effectively beyond supportive and palliative care. Thus, the most important feature of Chronic Venous Insufficiency is that it describes the interventions which markedly ameliorate, and in some cases cure, the condition. The authoritative text has been skilfully illustrated to show how new methods of endovascular and endoscopic interventions can be integrated with radiologic techniques to correct totally the abnormalities which produce chronic venous insufficiency. Taken as a whole this volume will enable general surgeons, vascular surgeons, dermatologists and interventional radiologists to treat a condition that was, until recently, thought to be untreatable.
Download or read book Handbook of Venous Disorders Guidelines of the American Venous Forum Third Edition written by Peter Gloviczki and published by CRC Press. This book was released on 2008-12-26 with total page 769 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in its third edition, the Handbook of Venous Disorders continues to provide comprehensive and up-to-date information on acute and chronic venous and lymphatic diseases and malformations and to discuss the latest knowledge on epidemiology, pathophysiology, clinical evaluation, diagnostic imaging, medical, endovascular and surgical management. This revised, updated and expanded edition takes account of all the recent developments in these areas. New chapters on, for example, foam sclerotherapathy, radiofrequency treatment, laser treatment and open surgical reconstructions are included, as well as useful diagnostic and treatment algorithms for the various conditions that are dealt with in the book. Clinical guidelines are provided in each chapter, together with evidence scores to help the reader assess the recommendations. The Handbook of Venous Disorders is written and edited by leaders and founding members of the American Venous Forum, a society dedicated to research, education and the clinical practice of venous and lymphatic diseases. The Handbook also includes several international authors, all of whom are experts in venous disease, most being regular or honorary members of the American Venous Forum.
Download or read book The Venous System in Health and Disease written by A. M. N. Gardner and published by IOS Press. This book was released on 2001 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of CHEMISTRY continues to incorporate a strong molecular reasoning focus, amplified problem-solving exercises, a wide range of real-life examples and applications, and innovative technological resources. With this text's focus on molecular reasoning, readers will learn to think at the molecular level and make connections between molecular structure and macroscopic properties. The Tenth Edition has been revised throughout and now includes a reorganization of the descriptive chemistry chapters to improve the flow of topics, a new basic math skills Appendix, an updated art program with new 'talking labels' that fully explain what is going on in the figure, and much more. Available with InfoTrac Student Collections http://gocengage.com/infotrac.
Download or read book Venous Disorders written by John J. Bergan and published by W.B. Saunders Company. This book was released on 1991 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to diagnosis of today's venous statis disorders (venous telangiectasias, varicose veins, chronic venous statis disease), intended for vascular and general surgeons. Describes modern treatments of deep venous thrombosis and its manifestations of acute and chronic pulmonary embolization.
Download or read book Basic and Clinical Understanding of Microcirculation written by Kaneez Fatima Shad and published by BoD – Books on Demand. This book was released on 2020-07-22 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microcirculation is key to providing enough nutrition and oxygen from head to toe. This is possible only through an extensive network of blood vessels spread around the body. Effect of microcirculation abnormalities stretch beyond one’s comprehension. The effects could be felt at any age, from the foetal life to the adulthood. The chapters present in this book describe how these abnormalities could lead to diseases such as atherosclerosis, thrombosis, diabetes, hypertension. Disorders of microcirculation could be related to the structural and/or functional damage to the inner lining of the blood vessels. Early identification of these disorders could benefit many ailments including cardiovascular and cerebrovascular diseases such as heart attack and stroke.
Download or read book The Gastrointestinal Circulation written by Peter R. Kvietys and published by Morgan & Claypool Publishers. This book was released on 2010 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: The microcirculation of the gastrointestinal tract is under the control of both myogenic and metabolic regulatory systems. The myogenic mechanism contributes to basal vascular tone and the regulation of transmural pressure, while the metabolic mechanism is responsible for maintaining an appropriate balance between O2 demand and O2 delivery. In the postprandial state, hydrolytic products of food digestion elicit a hyperemia, which serves to meet the increased O2 demand of nutrient assimilation. Metabolically linked factors (e.g., tissue pO2, adenosine) are primarily responsible for this functional hyperemia. The fenestrated capillaries of the gastrointestinal mucosa are relatively permeable to small hydrolytic products of food digestion (e.g., glucose), yet restrict the transcapillary movement of larger molecules (e.g., albumin). This allows for the absorption of hydrolytic products of food digestion without compromising the oncotic pressure gradient governing transcapillary fluid movement and edema formation. The gastrointestinal microcirculation is also an important component of the mucosal defense system whose function is to prevent (and rapidly repair) inadvertent epithelial injury by potentially noxious constituents of chyme. Two pathological conditions in which the gastrointestinal circulation plays an important role are ischemia/reperfusion and chronic portal hypertension. Ischemia/reperfusion results in mucosal edema and disruption of the epithelium due, in part, to an inflammatory response (e.g., increase in capillary permeability to macromolecules and neutrophil infiltration). Chronic portal hypertension results in an increase in gastrointestinal blood flow due to an imbalance in vasodilator and vasoconstrictor influences on the microcirculation. Table of Contents: Introduction / Anatomy / Regulation of Vascular Tone and Oxygenation / Extrinsic Vasoregulation: Neural and Humoral / Postprandial Hyperemia / Transcapillary Solute Exchange / Transcapillary Fluid Exchange / Interaction of Capillary and Interstitial Forces / Gastrointestinal Circulation and Mucosal Defense / Gastrointestinal Circulation and Mucosal Pathology I: Ischemia/Reperfusion / Gastrointestinal Circulation and Mucosal Pathology II: Chronic Portal Hypertension / Summary and Conclusions / References / Author Biography
Download or read book Diseases of the Veins written by Norman Leslie Browse and published by Hodder Arnold. This book was released on 1988-01-01 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analyzes and discusses what the authors consider to be the important publications on venous disease, and presents the authors' views and attitudes to venous problems. Designed for medical students, residents and consultants. Illustrated. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Skeletal Muscle Circulation written by Ronald J. Korthuis and published by Morgan & Claypool Publishers. This book was released on 2011 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this treatise is to summarize the current understanding of the mechanisms for blood flow control to skeletal muscle under resting conditions, how perfusion is elevated (exercise hyperemia) to meet the increased demand for oxygen and other substrates during exercise, mechanisms underlying the beneficial effects of regular physical activity on cardiovascular health, the regulation of transcapillary fluid filtration and protein flux across the microvascular exchange vessels, and the role of changes in the skeletal muscle circulation in pathologic states. Skeletal muscle is unique among organs in that its blood flow can change over a remarkably large range. Compared to blood flow at rest, muscle blood flow can increase by more than 20-fold on average during intense exercise, while perfusion of certain individual white muscles or portions of those muscles can increase by as much as 80-fold. This is compared to maximal increases of 4- to 6-fold in the coronary circulation during exercise. These increases in muscle perfusion are required to meet the enormous demands for oxygen and nutrients by the active muscles. Because of its large mass and the fact that skeletal muscles receive 25% of the cardiac output at rest, sympathetically mediated vasoconstriction in vessels supplying this tissue allows central hemodynamic variables (e.g., blood pressure) to be spared during stresses such as hypovolemic shock. Sympathetic vasoconstriction in skeletal muscle in such pathologic conditions also effectively shunts blood flow away from muscles to tissues that are more sensitive to reductions in their blood supply that might otherwise occur. Again, because of its large mass and percentage of cardiac output directed to skeletal muscle, alterations in blood vessel structure and function with chronic disease (e.g., hypertension) contribute significantly to the pathology of such disorders. Alterations in skeletal muscle vascular resistance and/or in the exchange properties of this vascular bed also modify transcapillary fluid filtration and solute movement across the microvascular barrier to influence muscle function and contribute to disease pathology. Finally, it is clear that exercise training induces an adaptive transformation to a protected phenotype in the vasculature supplying skeletal muscle and other tissues to promote overall cardiovascular health. Table of Contents: Introduction / Anatomy of Skeletal Muscle and Its Vascular Supply / Regulation of Vascular Tone in Skeletal Muscle / Exercise Hyperemia and Regulation of Tissue Oxygenation During Muscular Activity / Microvascular Fluid and Solute Exchange in Skeletal Muscle / Skeletal Muscle Circulation in Aging and Disease States: Protective Effects of Exercise / References
Download or read book The Return of Blood to the Heart written by A. M. N. Gardner and published by . This book was released on 1989 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cerebral Circulation written by Marilyn J. Cipolla and published by Biota Publishing. This book was released on 2016-07-28 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: This e-book will review special features of the cerebral circulation and how they contribute to the physiology of the brain. It describes structural and functional properties of the cerebral circulation that are unique to the brain, an organ with high metabolic demands and the need for tight water and ion homeostasis. Autoregulation is pronounced in the brain, with myogenic, metabolic and neurogenic mechanisms contributing to maintain relatively constant blood flow during both increases and decreases in pressure. In addition, unlike peripheral organs where the majority of vascular resistance resides in small arteries and arterioles, large extracranial and intracranial arteries contribute significantly to vascular resistance in the brain. The prominent role of large arteries in cerebrovascular resistance helps maintain blood flow and protect downstream vessels during changes in perfusion pressure. The cerebral endothelium is also unique in that its barrier properties are in some way more like epithelium than endothelium in the periphery. The cerebral endothelium, known as the blood-brain barrier, has specialized tight junctions that do not allow ions to pass freely and has very low hydraulic conductivity and transcellular transport. This special configuration modifies Starling's forces in the brain microcirculation such that ions retained in the vascular lumen oppose water movement due to hydrostatic pressure. Tight water regulation is necessary in the brain because it has limited capacity for expansion within the skull. Increased intracranial pressure due to vasogenic edema can cause severe neurologic complications and death.
Download or read book Principles of Metabolic Surgery written by Konrad Karcz and published by Springer Science & Business Media. This book was released on 2012-05-15 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: For physicians and surgeons entrusted with the care of patients with morbid obesity and related diseases; also for nurses and other professionals on the team. „Principles of Metabolic Surgery“ delivers a succinct account of current knowledge and an excellent overview of modern treatment strategies for morbid obesity. Attractively designed, this user-friendly textbook provides the latest on therapy, monitoring, and management, including: -Completely up-to-date coverage of modern metabolic surgery -Current understanding of the pathophysiology of morbid obesity -Current clinical therapy strategies for conservative and surgical approaches -Recent references In concise, readable chapters, this well-illustrated textbook outlines major concerns and considerations surrounding metabolic surgery. With respect to new insights from basic and clinical research, clear guidelines and practical clinical advice are given to improve the outcome of treatment for morbid obesity.
Download or read book Endovascular Interventions written by Jose M. Wiley and published by John Wiley & Sons. This book was released on 2023-07-11 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: ENDOVASCULAR INTERVENTIONS A practical and systematic approach to current endovascular surgical techniques An increasingly popular alternative to open vascular surgery, endovascular intervention offers many advantages, including reduced patient discomfort, smaller incisions, shorter recovery time, and decreased risk of adverse complications. Practitioners and trainees alike require expert guidance on current technologies and up-to-date techniques. Endovascular Interventions provides clinicians with an easy-to-follow guide for minimally invasive treatment of vascular disease. This invaluable resource delivers concise and accurate instructions on a wide range of endovascular interventions, including aorta, renal and mesenteric interventions, lower extremity interventions, venous interventions, and supra-aortic interventions in high-risk patients. Sequential phases of skill development broaden the reader’s abilities as they progress through each chapter, supplying step-by-step instructions on when each procedure should be used and how it can be safely and effectively performed. This book offers a complete reference to essential techniques and procedures, suitable for both novice and experienced vascular surgeons, cardiologists, and radiologists. Endovascular Interventions also: Reinforces comprehension of each procedure with templated chapters, equipment lists and boxed key learning points Provides full-color clinical images and detailed illustrations to demonstrate surgical procedures Presents authoritative coverage of modern endovascular technologies and techniques Written by a team of respected experts and practicing surgeons from internationally recognized hospitals and universities Suitable for varying skill levels, Endovascular Interventions is a precise, accessible instruction manual for safe and effective endovascular intervention, helping practicing clinicians sharpen their existing abilities and keep pace with the latest surgical technologies while instructing trainees on this innovative approach to vascular surgery.
