Download or read book Cardiac Output and Regional Flow in Health and Disease written by A-M. Salmasi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cardiac output has always been a subject of interest to both clinicians and researchers in different branches of medicine and surgery. In the last decade more attention has also been paid to its application in pediatrics, neonatology, fetal medicine and pregnancy. Better understanding of the peripheral circulation has provided more insight into the patholophysiology of different diseases. Many cardiac and non-cardiac disorders affect cardiac outputs. Monitoring of the changes in cardiac output is also important in the acutely ill patient. There are several methods to measure cardiac output, each with advantages and pitfalls. This book deals with all relevant aspects of cardiac output in eight parts: part one describes the methods of measuring cardiac output and a comparison between the catheterisation based and the noninvasive techniques, while part two describes the changes in cardiac output due to physiological causes. Part three describes cardiac output in cardiac diseases and systemic hypertension. Cardiac output in acutely ill patients is discussed in part four. Effect of cardiac medications, temporary atrial pacing, permanent pacing, pharmacologic stress testing and anesthesia are covered in detail in part six, while changes in cardiac output in noncardiac diseases are described in part seven. Finally great attention has been paid in part eight to the regional circulation including cerebral, coronary, skeletal and splanchnic circulations. A separate chapter discusses in detail the dynamics of blood flow. This book will be useful both to the cardiologists as well as to physicians in other fields of surgery and medicine and to their trainees. Readers will find this book an interesting and a useful reference on the topic of cardiac output.
Download or read book Control of Cardiac Output written by David Young and published by Biota Publishing. This book was released on 2010-01-01 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although cardiac output is measured as the flow of blood from the left ventricle into the aorta, the system that controls cardiac output includes many other components besides the heart itself. The heart’s rate of output cannot exceed the rate of venous return to it, and therefore, the factors governing venous return are primarily responsible for control of output from the heart. Venous return is affected by its pressure gradient and resistance to flow throughout the vascular system. The pressure gradient for venous return is a function of several factors including the blood volume flowing through the system, the unstressed vascular volume of the circulatory system, its capacitance, mean systemic pressure, and right atrial pressure. Resistance to venous return is the sum of total vascular resistance from the aortic valve to the right atrium. The sympathetic nervous system and vasoactive circulating hormones affect short-term resistance, whereas local tissue blood flow autoregulatory mechanisms are the dominant determinants of long-term resistance to venous return. The strength of contraction of the heart responds to changes in atrial pressure driven by changes in venous return, with small changes in atrial pressure eliciting large changes in strength of contraction, as described by the Frank–Starling mechanism. In addition, the autonomic nervous system input to the heart alters myocardial pumping ability in response to cardiovascular challenges. The function of the cardiovascular system is strongly affected by the operation of the renal sodium excretion–body fluid volume–arterial pressure negative feedback system that maintains arterial blood pressure at a controlled value over long periods. The intent of this volume is to integrate the basic knowledge of these cardiovascular system components into an understanding of cardiac output regulation. Table of Contents: Introduction / Venous Return / Cardiac Function / Integrated Analysis of Cardiac Output Control / Analysis of Cardiac Output Regulation by Computer Simulation / Analysis of Cardiac Output Control in Response to Challenges / Conclusion / References / Author Biography
Download or read book Regulation of Tissue Oxygenation Second Edition written by Roland N. Pittman and published by Biota Publishing. This book was released on 2016-08-18 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: This presentation describes various aspects of the regulation of tissue oxygenation, including the roles of the circulatory system, respiratory system, and blood, the carrier of oxygen within these components of the cardiorespiratory system. The respiratory system takes oxygen from the atmosphere and transports it by diffusion from the air in the alveoli to the blood flowing through the pulmonary capillaries. The cardiovascular system then moves the oxygenated blood from the heart to the microcirculation of the various organs by convection, where oxygen is released from hemoglobin in the red blood cells and moves to the parenchymal cells of each tissue by diffusion. Oxygen that has diffused into cells is then utilized in the mitochondria to produce adenosine triphosphate (ATP), the energy currency of all cells. The mitochondria are able to produce ATP until the oxygen tension or PO2 on the cell surface falls to a critical level of about 4–5 mm Hg. Thus, in order to meet the energetic needs of cells, it is important to maintain a continuous supply of oxygen to the mitochondria at or above the critical PO2 . In order to accomplish this desired outcome, the cardiorespiratory system, including the blood, must be capable of regulation to ensure survival of all tissues under a wide range of circumstances. The purpose of this presentation is to provide basic information about the operation and regulation of the cardiovascular and respiratory systems, as well as the properties of the blood and parenchymal cells, so that a fundamental understanding of the regulation of tissue oxygenation is achieved.
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 Cardiovascular System in Health and Disease written by Mark I. M. Noble and published by World Scientific Publishing Company. This book was released on 2002-01-01 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the basic aspects of the cardiovascular system in health and disease in relation to a series of 3D case descriptions.
Download or read book Cardiac Output and Regional Blood Flow written by Owen Lyndon Wade and published by . This book was released on 1962 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Library of Medicine Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on 1993-04 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Heart Its Function in Health and Disease written by Arthur Selzer and published by Univ of California Press. This book was released on 1969 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cardiac Positron Emission Tomography written by Markus Schwaiger and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is the mark of an instructed mind to rest satisfied with the degree of precision which the nature of the subject admits, and not to seek exactness where only an approximation of the truth is possible. Aristotle With the development of imaging techniques, the in vivo study of human anatomy and physiology has become possible with increasing "approximation of the truth. " Advances have been made not only in data acquisition, but also in processing as well as visualization of functional and morphological data. Following the successful application of planar two-dimensional imaging approaches, more recently three-dimensional data acquisition and correspond ing tomographic image reconstruction has become possible. With the rapid growth of computer support, advanced processing allows for user-friendly interaction with complex data sets. Classical x-ray imaging techniques have matured to excellent spatial resolution and contrast, which provide specific delineation of anatomical changes occurring in cardiovascular disease. In parallel, the use of tracer principles supported the successful introduction of nuclear medicine procedures for the functional characterization of physiology and pathophysiology. The application of such techniques were initially limited by relatively poor spatial resolution, but excelled in high sensitivity 30 years, scintigraphic imaging emerged from and specificity. In the last rectilinear scanning to planar gamma camera imaging and single-photon xvi Preface emISSIOn tomography (SPECT). Based on these advances and the experi mental success of autoradiography, the potential of scintigraphy as a clinical and research tool has been well appreciated.
Download or read book Excitation Contraction Coupling and Cardiac Contractile Force written by Donald Bers and published by Springer Science & Business Media. This book was released on 1993-08-31 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main aim of this monograph is to provide an overview of calcium regulation in cardiac muscle cells, particularly with respect to excitation-contraction coupling and the control of cardiac contractile force. It is my hope that this book will be useful to students of the cardiovascular system and muscle at all different levels and in different disciplines (such as physiology, biochemistry, pharmacology and pathophysiology). I also hope that it will find use for those studying developmental, comparative and disease processes as well as more integrative phenomenon. I kept several goals in mind in writing this monograph. First, it should be easily readable. Second, I chose to include numerous illustrations and tables to help integrate results from numerous investigators in practical formats and also present key figures from important papers. Thus, this monograph may serve as a resource of information for people working in the areas described herein. Third, the presentation is a very personal one, and I have necessarily drawn extensively on my personal experience in this field over the past 15 years. This, I think, helps maintain a certain continuity of thought from chapter to chapter. Fourth, I have made serious attempts to make each chapter "up to date", despite the breadth of topics covered. I have also tried to be equitable in choosing references while not intending to be comprehensive or exhaustive. Neither of these aims can be perfectly matched, and I apologize to the many investigators whose papers I have not cited, but should have.
Download or read book Ischemia reperfusion in cardiac surgery written by Hans Michael Piper and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: In open heart surgery, protection of the myocardium against injury by ischemia-reperfusion is an issue of utmost clinical interest. The knowledge on the causal mechanisms of myocardial injury in ischemia-reperfusion has greatly progressed in recent years, both to clinical and experimental research. This book provides a critical and comprehensive overview on the current discussion of myocardial protection in cardiac experimental research and surgery. Leading groups from Europe, the U.S. and Japan have contributed reviews of their special fields. On the basic science side, major topics discussed are the mechanisms of stunning and lethal reperfusion injury, the role of the endothelium and leukocyte activation in postischemic myocardial dysfunction, and the differences between the adult and neonatal myocardium. On the clinical side, the major concepts and procedures for cardioplegic myocardial protection, their rationales, application and respective merits are discussed. In a third part of the book, possible approaches for the monitoring of myocardial injury during ischemia and reperfusion are evaluated, with particular attention to their intraoperative use. This book brings together the scientific discussions on ischemia-reperfusion in experimental cardiology and cardiac surgery, a task needed for a long time. It is of general interest for clinicians as well as research workers and students in the cardiac field.
Download or read book Molecular Physiology and Pharmacology of Cardiac Ion Channels and Transporters written by M. Morad and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge of cardiac ion channels and transporters has advanced remarkably in the last two decades with the development of patch-clamp and molecular biological techniques. This textbook offers a comprehensive overview of structures and functions of ion channels and transporters in the heart. Readers are first introduced to the molecular biology and electrophysiology of all the important ion channels. After discussing their developmental changes, the pharmacology and pathophysiology of clinically-relevant ion channels are reviewed. Molecular aspects of the cardiac excitation-contraction coupling and intracellular Ca2+ regulation by ion transporters are also described. The book will be useful to electrophysiologists, cardiac physiologists and pharmacologists, and molecular biologists interested in ion channels at all levels. For research specialists, the book will provide a perspective of the field. The book can be used as a reference source for working scientists in the fields of ion channels, biophysics, cardiac electrophysiology, and pharmacology. It is aimed at graduate and medical students, designed for use as a textbook for graduate and medical courses.
Download or read book Cardiovascular Disability written by Institute of Medicine and published by National Academies Press. This book was released on 2010-12-04 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Social Security Administration (SSA) uses a screening tool called the Listing of Impairments to identify claimants who are so severely impaired that they cannot work at all and thus immediately qualify for benefits. In this report, the IOM makes several recommendations for improving SSA's capacity to determine disability benefits more quickly and efficiently using the Listings.
Download or read book Mechanisms of Heart Failure written by Pawan K. Singal and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanisms of Heart Failure is based on papers selected from poster presentations made at the International Conference on Heart Failure, Winnipeg, May 20-23, 1994. Although the entire book is one continuous discussion of subcellular mechanisms of heart failure and its treatment, the presentation has been divided into three sections: the opening section on the subcellular basis of heart failure includes discussions of cytokines, signal transduction, metabolism, extracellular matrix, organ level changes and newer approaches to understanding the pathogenesis of heart failure. The second section focuses on the pathophysiological aspects of cardiomyopathies and their treatment. In the final section, medical, surgical and pharmacological approaches to the treatment of heart failure are discussed in clinical and animal laboratory settings.
Download or read book Molecular Cardiology for the Cardiologists written by Bernard Swynghedauw and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular Cardiology for the Cardiologist provides a short, easily readable summary of what the new biology brings to cardiology. With this in mind, special efforts have been made to present many comprehensive schemes and drawings, as well as teaching tables. The five parts of the book provide a general introduction to the new language of biology; the normal structure of the heart and blood vessels; the physiopathology and the new therapeutic avenues that have been opened up by the new biology. A concise summary of the keys that assist the cardiologist or student who seeks to learn and read more about this field. Provides practical examples to illustrate the clinical interest of the new approach.
Download or read book Imaging and Intervention in Cardiology written by C.A. Nienaber and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this work is to give clinicians and interventionalists an overview of the use of cardiac imaging techniques in combination with modern interventional procedures such as thrombolysis, catheter-based coronary revascularization, valvuloplasty and interventions in congenital heart disease.
Download or read book Nuclear Cardiology in Everyday Practice written by J. Candell-Riera and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most salient feature of the infor last four chapters of the book evaluate the mation provided by nuclear medicine is its information from an analytical and pathophysiological and functional charac statistical point of view. This approach is ter. For adequate experimental or clinical required for correct decision-making. interpretation, such information should This book is therefore the result of necessarily be interpreted alongside the accumulated experience in nuclear cardiology views of the clinical cardiologist, who is with the invaluable cooperation of medical able to apply it to the individual patient. statisticians. It is directed to physicians This approach, which is routine in every with an interest in nuclear cardiology, to day clinical practice, reaches its plenitude nuclear medicine specialists wishing to when the whole process is completed and learn the uses and limitations of these an intimate cooperation is established procedures in everyday clinical cardiology, between the nuclear medicine specialist and to cardiologists who feel the need to and the clinical cardiologist. In such understand the rationale and methodology instances, each one of these professionals of the studies which benefit their patients. understands the needs, limits and possi We understand that the ultimate reason bilities of the other. for any scientific book is the transmission The present book is the fruit of such of knowledge, and we are fully conscious cooperation. In our hospital, an efficient of the enthusiasm of the authors of the nuclear cardiology team has been made up present text to achieve that aim.
