Download or read book Activation Metabolism and Perfusion of the Heart written by S. Sideman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 735 pages. Available in PDF, EPUB and Kindle. Book excerpt: The basic mechanism underlying directional differences in excitability, con duction velocity, andsafetyfactor thatleadtocircusmovementreentry incardiac muscle is generally attributed to a spatial difference in the refractory period as originally described by Mines [1] or to a depressed segment as described by Schmitt and Erlanger [2]. A departure from this depolarization in cardiac muscle involve quantities, such as Vmax' that are not directly descriptive of the underlying mechanisms of propagation.

Download or read book Regulation of Coronary Blood Flow written by Michitoshi Inoue and published by Springer Science & Business Media. This book was released on 2013-11-09 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research centering on blood flow in the heart continues to hold an important position, especially since a better understanding of the subject may help reduce the incidence of coronary arterial disease and heart attacks. This book summarizes recent advances in the field; it is the product of fruitful cooperation among international scientists who met in Japan in May, 1990 to discuss the regulation of coronary blood flow.

Download or read book The Scientist s Guide to Cardiac Metabolism written by Michael Schwarzer and published by Academic Press. This book was released on 2015-11-04 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Scientists Guide to Cardiac Metabolism combines the basic concepts of substrate metabolism, regulation, and interaction within the cell and the organism to provide a comprehensive introduction into the basics of cardiac metabolism. This important reference is the perfect tool for newcomers in cardiac metabolism, providing a basic understanding of the metabolic processes and enabling the newcomer to immediately communicate with the expert as substrate/energy metabolism becomes part of projects. The book is written by established experts in the field, bringing together all the concepts of cardiac metabolism, its regulation, and the impact of disease. Provides a quick and comprehensive introduction into cardiac metabolism Contains an integrated view on cardiac metabolism and its interrelation in metabolism with other organs Presents insights into substrate metabolism in relation to intracellular organization and structure as well as whole organ function Includes historical perspectives that reference important investigators that have contributed to the development of the field

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 ATP and the Heart written by Joanne S. Ingwall and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: ATP plays a central role in the two leading causes of cardiac morbidity and mortality in the western world: ischemia and heart failure. We are in our infancy applying what is known about biology and chemistry of ATP toward developing effective therapies for these diseases. In this volume, the current understanding of the chemistry and biology of ATP specifically in the cardiomyocyte is presented. New insights into ATP have been gleaned using biophysical techniques allowing dynamic measurement of chemical events in the intact beating heart and using new animal models in which cardiac proteins are either over expressed, deleted or harbor specific mutations. This book provides a summary of the basic understanding and includes illustrations of why ATP and the Heart is important to both the clinician and scientist.

Download or read book Analysis and Assessment of Cardiovascular Function written by Gary M. Drzewiecki and published by Springer Science & Business Media. This book was released on 1998 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of cardiovascular function is vital to contemporary biomedical research. However, integration between cellular and subcellular research and organ-level studies is often lacking, as is integration of clinical and basic investigation. This book examines cardiovascular system function from the perspectives of assessment and analysis, with a focus on evaluating function at different anatomical levels using a combination of analytical, experimental, and clinical measurements.

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 ABC of Hypertension written by D. Gareth Beevers and published by John Wiley & Sons. This book was released on 2010-07-15 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypertension is a condition which affects millions of peopleworldwide and its treatment greatly reduces the risk of strokes andheart attacks. This fully revised and updated edition of the ABCof Hypertension is an established guide providing all thenon-specialist needs to know about the measurement of bloodpressure and the investigation and management of hypertensivepatients. This new edition provides comprehensively updated andrevised information on how and whom to treat. The ABC of Hypertension will prove invaluable to generalpractitioners who may be screening large numbers of patients forhypertension, as well as nurse practitioners, midwives and otherhealthcare professionals.

Download or read book Handbook of Radiopharmaceuticals written by Michael R. Kilbourn and published by John Wiley & Sons. This book was released on 2021-04-12 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thoroughly updated new edition of the authoritative reference in Radiopharmaceutical Sciences The second edition of Handbook of Radiopharmaceuticals is a comprehensive review of the field, presenting up-to-date coverage of central topics such as radionuclide production, synthetic methodology, radiopharmaceutical development and regulations, and a wide range of practical applications. A valuable reference work for those new to the Radiopharmaceutical Sciences and experienced professionals alike, this volume explores the latest concepts and issues involving both targeted diagnostic and therapeutic radiopharmaceuticals. Contributions from a team of experts from across sub-disciplines provide readers with an immersive examination of radiochemistry, nuclear medicine, molecular imaging, and more. Since the first edition of the Handbook was published, Nuclear Medicine and Radiopharmaceutical Sciences have undergone major changes. New radiopharmaceuticals for diagnosis and therapy have been approved by the FDA, the number of clinical PET and SPECT scans have increased significantly, and advances in Artificial Intelligence have dramatically improved research techniques. This fully revised edition reflects the current state of the field and features substantially updated and expanded content. New chapters cover topics including current Good Manufacturing Practice (cGMP), regulatory oversight, novel approaches to quality control—ensuring that readers are informed of the exciting developments of recent years. This important resource: Features extensive new and revised content throughout Covers key areas of application for diagnosis and therapy in oncology, neurology, and cardiology Emphasizes the multidisciplinary nature of Radiopharmaceutical Sciences Discusses how drug companies are using modern radiopharmaceutical imaging techniques to support drug discovery Examines current and emerging applications of Positron Emission Tomography (PET) and Single Photon Emission Computed Tomography (SPECT) Edited by recognized experts in radiochemistry and PET imaging, Handbook of Radiopharmaceuticals: Radiochemistry and Applications, 2 nd Edition is an indispensable reference for post-doctoral fellows, research scientists, and professionals in the pharmaceutical industry, and for academics, graduate students, and newcomers in the field of radiopharmaceuticals.

Download or read book Pathophysiology and Pharmacology of Heart Disease written by Naranjan S. Dhalla 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: Research at the molecular and the cellular level has greatly enhanced our understanding of the pathogenesis and management of heart disease. Valuable contributions, towards this end, have been made by scientists from different dis ciplines including biochemistry, physiology, pathology, molecular biology and biophysics. We felt that it would be of interest and value to bring together ex perts from diverse specialities to present their work and to discuss the common problems encountered in their endeavours. In accordance, a symposium was organised in February 1988 at the Postgraduate Institute of Medical Education & Research, Chandigarh. It was held during the annual meeting of the Indian section of the International Society for Heart Research. This book is a compila tion of some of the papers presented at the symposium. The symposium was sponsored by the Council on Cardiac Metabolism of the International Society and Federation of Cardiology. A number of Indian or ganisations gave generous financial help. These included the National Academy of Medical Sciences, Indian Council of Medical Research, Council of Scientific and Industrial Research and Department of Science and Technology. Desktop publishing was used to prepare this volume. In doing so we came to appreciate the remarkable qualities, skills and help rendered by Professor Dharam Vir. For typing the manuscripts and for other secretarial assistance we gratefully acknowledge the help of Ravinder and Sawtantar. PATHOPHYSIOLOGY AND PHARMACOLOGY OF HEART DISEASE 1 THE NEWBORN PIG HEART, A SUPERIOR ANIMAL MODEL OF CARDIAC HYPERTROPHY Howard E.

Download or read book Clinical Echocardiography written by M. Iwase and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, much progress has been made with echocardiography and Doppler techniques and these ultrasound methods have grown in importance and reliability as non-invasive diagnostic procedures for many cardiovascular disorders. The objective of this t~xtbook is to offer a detailed yet concise overview of the echocardiographic diagnosis of the various cardiovascular diseases. The book focuses upon the practical echocardiographic (including Doppler) exam ination. Accordingly, the fundamental principles of echocardiography and the Doppler techniques (pulsed and continuous wave and color flow mapping are covered briefly but comprehensively). A copious amount of representative figures and illustrations is included so that the reader is able to understand the clinical application of each modality in the various cardiovascular pathologies and the echocardiographic diagnosis. In keeping with the concept of an integrated echocardiographic examination, the two-dimensional, M-mode and Doppler echocardiographic findings are included in many of the diseases. Usually, the echocardiographic examination is approached first by two-dimensional imag ing to give an understanding of the anatomical correlations, if necessary adding M-mode to clarify the time course of intracardiac movements, and secondly by each Doppler technique to evaluate the hemodynamic conditions. When familiar with these approaches, one can make not only the diagnosis of many cardiovascular diseases with echocardiography alone, but also the rational and expeditious management of patients. Today, some of the cardiac diseases (Atrial Myxoma, Atrial Septal Defect, Infective endocarditis and so forth) have been oper ated based only on echocardiographic findings.

Download or read book Acute Heart Failure written by Alexandre Mebazaa and published by Springer Science & Business Media. This book was released on 2009-12-24 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many years, there has been a great deal of work done on chronic congestive heart failure while acute heart failure has been considered a difficult to handle and hopeless syndrome. However, in recent years acute heart failure has become a growing area of study and this is the first book to cover extensively the diagnosis and management of this complex condition. The book reflects the considerable amounts of new data reported and many new concepts which have been proposed in the last 3-4 years looking at the epidemiology, diagnostic and treatment of acute heart failure.

Download or read book The Heart written by Lionel H. Opie and published by Lippincott Williams & Wilkins. This book was released on 1998 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical cardiac physiology for residents and practitioners. Halftone and color illustrations and tables.

Download or read book Oxygen Transport to Tissue XXV written by Maureen S. Thorniley and published by Springer Science & Business Media. This book was released on 2003-12-31 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 30th scientific meeting of the International Society on Oxygen Transport to Tissue (ISOTT) was held at the Western Conference Centre, UMIST, Manchester, in August 2002. It was attended by some 96 delegates and accompanying persons and there were 128 presentations.

Download or read book Early Interventions in Acute Myocardial Infarction written by Elliot Rapaport and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our understanding of the pathophysiology of acute myocardial infarction has grown enormously in recent years. This has led to an increasingly aggressive approach to management, designed to blunt the extent of infarction by salvaging acutely ischemic myocardium. Alternatives now include throm bolysis, PTCA with and without prior thrombolysis, and emergency bypass surgery, as well as the more aggressive use of a variety of drugs. This book consists of a series of chapters by experienced cardiologists and cardiovascular surgeons that present today's state of the art in managing acute myocardial infarction. It is written with the purpose of presenting practical approaches of value to the clinician related to the more complex problems faced in dealing with patients undergoing myocardial infarction. xi EARLY INTERVENTIONS IN ACUTE MYOCARDIAL INFARCTION 1. MANAGEMENT OF ARRHYTHMIAS IN THE CORONARY CARE UNIT NORA GOLDSCHLAGER, RODERICK WOODS, AND NEAL BENOWITZ With the advent of coronary care units, mortality from cardiac arrhythmias occurring during acute myocardial infarction has been unquestionably and dramatically reduced. In addition, continuous electrocardiographic monitoring has resulted in the recognition of specific arrhythmias related to acute ischemic heart disease and thus to the development of appropriate strategies for their management. This chapter will review certain specific aspects of those bradyarrhythmias and atrial and ventricular tachyarrhythmias that are seen most commonly in acute myocardial infarction. Pharmacologic therapy, including the use of some of the newer antiarrhythmic agents, will be discussed, as will pacemaker ther apy of both bradyarrhythmias and tachyarrhythmias.

Download or read book Catheter Ablation of Cardiac Arrhythmias written by Melvin Scheinman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of catheter ablation has grown In a rather helter-skelter fashion. Ablative techniques were applied in patients before basic bioelectric and cellular electrophysiologic effects were fully defined. Since the introduction of this technique into clinical medicine in 1982, happily, a wealth of basic information has become available, and it was thought prudent to summarize existing data in the form of a text. The purpose of this text is to provide for a concise summary of both the basic and clinical experiences to date. It was simply not possible to include chapters from many workers who have made outstanding contributions in this area. For this, I offer my profound apolo gies. I do wish, however, to acknowledge the outstanding work of Drs. Bharati and Lev who provided us with a sound understanding of the histolo gic effects of various energy delivery systems. Their seminal observations allowed us to bring this technique to clinical fruition.

Download or read book Cardiovascular Physiology Concepts written by Richard E. Klabunde and published by Lippincott Williams & Wilkins. This book was released on 2020-12-01 with total page 689 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praised for its concise coverage, this highly accessible monograph lays a foundation for understanding the underlying concepts of normal cardiovascular function and offers a welcome alternative to a more mechanistically oriented approach or an encyclopedic physiology text. Clear explanations, ample illustrations and engaging clinical cases and problems provide the perfect guidance for self-directed learning and prepare you to excel in clinical practice.