Download or read book The Beat by beat Investigation of Cardiovascular Function written by R. I. Kitney and published by Oxford University Press, USA. This book was released on 1987 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes the electrophysiology of the heart and baroreceptor reflexes. It covers the analysis and modelling of beat-by-beat fluctuations of circulatory parameters such as heart rate and blood pressure, and provides summaries of the most accurate and reliable measurement techniques now available. These techniques have revealed the existence of some fluctuations, including oscillatory phenomena in heart-rate variability, that arise from control activity, and contributors examine the clinical implications of this discovery.

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 2012-12-06 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this book is to provide the researcher and clinician with the recent developments in the analysis and assessment of cardiovascular func tion. The chapters are organized into sections that correspond with the various anatomical levels of the cardiovascular system. To a large extent, recent focus on the cardiovascular system function has been directed at the molecular level to the near exclusion of the tissue and organ function. While this may be useful in developing new therapeutic drugs, it does not aid the cardiologist or surgeon, who routinely deal with patient symptoms. This book integrates the micro-level and organ-level function so that new infor mation may be assimilated into the cardiovascular system as a whole. Within each section, the chapters have been arranged to progress from recent theoretical developments, to experimental research, and finally to clinical applications. This approach facilitates the timely transfer of infor mation from basic research to the clinic. The strength of the analytical approach will be evident to the reader. The theoretical analysis offers guidance to experimental design and, in some cases, offers solutions where measurements are as yet unattainable. In moving from newly attained knowledge to clinical practice, this book emphasizes the noninvasive meth in the future as technological advances ods. Such methods are desirable occur and the trend towards early preventive diagnosis is sought. What follows are highlights of new developments covered in each section of the book.

Download or read book Ragnar Granit Institute Doctoral Seminar Autumn 1996 written by Jari Hyttinen and published by . This book was released on 1997 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Frontiers of Blood Pressure and Heart Rate Analysis written by M. Di Rienzo and published by IOS Press. This book was released on 1997 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: An increasing number of studies indicate that the analysis of blood pressure and heart rate variability may be a valuable tool for the investigation of the mechanisms responsible for cardiovascular regulation in physiological and pathological conditions. The reader can find in the first part of this book an updated review of the techniques currently employed for the computer analysis of these signals with a particular attention to the most innovative approaches based on the non-linear analysis (including applications of the chaos theory, fractal analysis, I/f modelling) and the time-variant estimation of BP and HR characteristics. The biological interpretation of the results obtained by these computerized procedures and the applicability of these techniques in a clinical setting are fully addressed in the second part of the book.

Download or read book Complexity and Nonlinearity in Cardiovascular Signals written by Riccardo Barbieri and published by Springer. This book was released on 2017-08-09 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on the latest advances in complex and nonlinear cardiovascular physiology aimed at obtaining reliable, effective markers for the assessment of heartbeat, respiratory, and blood pressure dynamics. The chapters describe in detail methods that have been previously defined in theoretical physics such as entropy, multifractal spectra, and Lyapunov exponents, contextualized within physiological dynamics of cardiovascular control, including autonomic nervous system activity. Additionally, the book discusses several application scenarios of these methods. The text critically reviews the current state-of-the-art research in the field that has led to the description of dedicated experimental protocols and ad-hoc models of complex physiology. This text is ideal for biomedical engineers, physiologists, and neuroscientists. This book also: Expertly reviews cutting-edge research, such as recent advances in measuring complexity, nonlinearity, and information-theoretic concepts applied to coupled dynamical systems Comprehensively describes applications of analytic technique to clinical scenarios such as heart failure, depression and mental disorders, atrial fibrillation, acute brain lesions, and more Broadens readers' understanding of cardiovascular signals, heart rate complexity, heart rate variability, and nonlinear analysis

Download or read book The Study of Heart rate Variability written by R. I. Kitney and published by Oxford University Press, USA. This book was released on 1980 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heart Rate Variability Health and Well being A Systems Perspective written by Robert Drury and published by Frontiers Media SA. This book was released on 2020-01-09 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of a new tool, analytic device, or approach frequently facilitates rapid growth in scientific understanding, although the process is seldom linear. The study of heart rate variability (HRV) defined as the extent to which beat-to-beat variation in heart rate varies, is a rapidly maturing paradigm that integrates health and wellness observations across a wide variety of biomedical and psychosocial phenomena and illustrates this nonlinear path of development. The utility of HRV as an analytic and interventive technique goes far beyond its original application as a robust predictor of sudden cardiac death. This Research Topic aims to provide a conceptual framework to use in exploring the utility of HRV as a robust parameter of health status, using a broad and inclusive definition of ‘health’ and ‘well-being’. From the broadest perspective, current biomedical science emerged from shamanistic and religious healing practices and empirically observed interventions made as humans emerged from other hominins. The exponential growth of physics, chemistry and biology provided scientific support for the model emphasizing pathology and disorders. Even before the momentous discovery of germ theory, sanitation and other preventive strategies brought about great declines in mortality and morbidity. The revolution that is currently expanding the biomedical model is an integrative approach that includes the wide variety of non-physio/chemical factors that contribute to health. In the integrative approach, health is understood to be more than the absence of disease and emphasis is placed on optimal overall functioning, within the ecological niche occupied by the organism. This approach also includes not just interventive techniques and procedures, but also those social and cultural structures that provide access to safe and effective caring for sufferers. Beyond the typical drug and surgical interventions - which many identify with the Western biomedical model that currently enjoys an unstable hegemony - such factors also include cognitive-behavioral, social and cultural practices such as have been shown to be major contributors to the prevention and treatment of disease and the promotion of health and optimal functioning. This Integrative Model of Health and Well-being also derives additional conceptual power by recognizing the role played by evolutionary processes in which conserved, adaptive human traits and response tendencies are not congruent with current industrial and postindustrial global environmental demands and characteristics. This mismatch contributes to an increasing incidence of chronic conditions related to lifestyle and health behavior. Such a comprehensive model will make possible a truly personalized approach to health and well-being, including and going far beyond the current emphasis on genomic analysis, which has promised more that it has currently delivered. HRV offers an inexpensive and easily obtained measure of neurovisceral functioning which has been found to relate to the occurrence and severity of numerous physical disease states, as well as many cognitive-behavioral health disorders. This use of the term neurovisceral refers to the relationships between the nervous system and the viscera, providing a more focused and specific conceptual alternative to the now nearly archaic “mind-body” distinction. This awareness has led to the recent and growing use of HRV as a health biomarker or health status measure of neurovisceral functioning. It facilitates studying the complex two way interaction between the central nervous system and other key systems such as the cardiac, gastroenterological, pulmonary and immune systems. The utility of HRV as a broad spectrum health indicator with possible application both clinically and to population health has only begun to be explored. Interventions based on HRV have been demonstrated to be effective evidence-based interventions, with HRV biofeedback treatment for PTSD representing an empirically supported modality for this complex and highly visible affliction. As an integral measure of stress, HRV can be used to objectively assess the functioning of the central, enteric and cardiac nervous systems, all of which are largely mediated by the vagal nervous complex. HRV has also been found to be a measure of central neurobiological concepts such as executive functioning and cognitive load. The relatively simple and inexpensive acquisition of HRV data and its ease of network transmission and analysis make possible a promising digital epidemiology which can facilitate objective population health studies, as well as web based clinical applications. An intriguing example is the use of HRV data obtained at motor vehicle crash sites in decision support regarding life flight evacuations to improve triage to critical care facilities. This Research Topic critically addresses the issues of appropriate scientific and analytic methods to capture the concept of the Integrative Health and Well-being Model. The true nature of this approach can be appreciated only by using both traditional linear quantitative statistics and nonlinear systems dynamics metrics, which tend to be qualitative. The Research Topic also provides support for further development of new and robust methods for evaluating the safety and effectiveness of interventions and practices, going beyond the sometimes tepid and misleading “gold standard” randomized controlled clinical trial.

Download or read book Heart Rate as a Determinant of Cardiac Function written by G. Hasenfuss and published by Springer Science & Business Media. This book was released on 2000-06 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a variety of cardiac diseases the influence of heart rate on cardiac function is altered and both heart rate and heart rate variability are of great relevance for the prognosis of cardiac patients. This book provides a summary of the current knowledge on the influence of heart rate on myocardial function and hemodynamics in non-failing and failing animal and human hearts. The subcellular and molecular alterations underlying the altered heart rate response in heart failure are discussed in detail. In addition, studies related to the impact of heart rate and heart rate variability on arrhythmogenesis and prognosis in patients with cardiac diseases are critically reviewed. Finally, the relevance of heart rate control by therapeutic interventions is also discussed. The book contains 19 different chapters written by well-known experts in this novel and clinically important field.

Download or read book Caffeine in Food and Dietary Supplements written by Leslie A. Pray and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Caffeine in Food and Dietary Supplements is the summary of a workshop convened by the Institute of Medicine in August 2013 to review the available science on safe levels of caffeine consumption in foods, beverages, and dietary supplements and to identify data gaps. Scientists with expertise in food safety, nutrition, pharmacology, psychology, toxicology, and related disciplines; medical professionals with pediatric and adult patient experience in cardiology, neurology, and psychiatry; public health professionals; food industry representatives; regulatory experts; and consumer advocates discussed the safety of caffeine in food and dietary supplements, including, but not limited to, caffeinated beverage products, and identified data gaps. Caffeine, a central nervous stimulant, is arguably the most frequently ingested pharmacologically active substance in the world. Occurring naturally in more than 60 plants, including coffee beans, tea leaves, cola nuts and cocoa pods, caffeine has been part of innumerable cultures for centuries. But the caffeine-in-food landscape is changing. There are an array of new caffeine-containing energy products, from waffles to sunflower seeds, jelly beans to syrup, even bottled water, entering the marketplace. Years of scientific research have shown that moderate consumption by healthy adults of products containing naturally-occurring caffeine is not associated with adverse health effects. The changing caffeine landscape raises concerns about safety and whether any of these new products might be targeting populations not normally associated with caffeine consumption, namely children and adolescents, and whether caffeine poses a greater health risk to those populations than it does for healthy adults. This report delineates vulnerable populations who may be at risk from caffeine exposure; describes caffeine exposure and risk of cardiovascular and other health effects on vulnerable populations, including additive effects with other ingredients and effects related to pre-existing conditions; explores safe caffeine exposure levels for general and vulnerable populations; and identifies data gaps on caffeine stimulant effects.

Download or read book Cardiology Explained written by Euan A. Ashley and published by Remedica. This book was released on 2004 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most time-consuming tasks in clinical medicine is seeking the opinions of specialist colleagues. There is a pressure not only to make referrals appropriate but also to summarize the case in the language of the specialist. This book explains basic physiologic and pathophysiologic mechanisms of cardiovascular disease in a straightforward manner, gives guidelines as to when referral is appropriate, and, uniquely, explains what the specialist is likely to do. It is ideal for any hospital doctor, generalist, or even senior medical student who may need a cardiology opinion, or for that ma.

Download or read book Sports Cardiology written by R. Fagard and published by Springer Science & Business Media. This book was released on 1986-06-30 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Participation in athletics at both the recreational and competitive levels has grown enormously over the last decade, and now involves a substantial segment of the population of many countries, particularly those in Europe and North America. This change in the life-style of many individuals has been accompanied by the desire and necessity on the part of physicians to define the consequences of chronic athletic training and competition to the participant. Coincident with the of public interest in sporting competition has been the evolution and growth development of new non-invasive technologies in cardiology (such as M-mode and two-dimensional echocardiography and radionuclide angiography) which have permitted investigators to study directly and more precisely the morphology and function of the heart and cardiovascular system. Hence, over the past several years our knowledge has been greatly enhanced with regard to the features of the normal 'athlete heart' and the relationship of athletic conditioning to preexistent cardiovascular disease, as well as the causes of sudden death in athletes. The present treatise on 'Sports cardiology: Exercise in Health and Cardio vascular Disease' is an impressive reference document which is also timely. It fulfills an important role in summarizing most of the available data that has been accumulated over the last 10 years in a large number of athletes participating in a variety of different sports. Drs. I. Bekaert and R.

Download or read book Snapshots of Hemodynamics written by Nicolaas Westerhof and published by Springer. This book was released on 2018-09-14 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition is written in the same quick reference style as its predecessor to help clinical and basic researchers, as well as graduate students, understand hemodynamics. Hemodynamics makes it possible to characterize, in a quantitative way and often with noninvasive techniques, the function of the heart and the arterial system, individually and in combination. Snapshots of Hemodynamics provides a thorough grounding in the discipline that will help any medical professional and researcher in the field. The authors have designed each chapter such that it gives a succinct overview of individual topics in a concise and understandable format. Each chapter of this new edition has been extensively updated while new chapters have been included on pulmonary hemodynamics and wave intensity analysis. The new edition presents the newest current information on hemodynamics in this ever-changing field.

Download or read book Computer Analysis of Cardiovascular Signals written by M. Di Rienzo and published by IOS Press. This book was released on 1995 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: CHAPTER 17: Respiratory Pattern, Invested Effort, and Variability in Heart Rate and Blood Pressure During the Performance of Mental Tasks -- CHAPTER 18: Power Spectra of Blood Pressure in Normotensive and Spontaneously Hypertensive Rats: Relationship with Sympathetic Cardiovascular Control -- CHAPTER 19: Sympathectomy, Sinoaortic Denervation and Spectral Powers of Blood Pressure and Heart Rate in Lyon Rats -- CHAPTER 20: Heart Rate Variability in Chronic Heart Failure -- CHAPTER 21: Spectral Analysis of Blood Pressure and Heart Rate in Patients with Myocardial Infarction -- CHAPTER 22: Heart Rate Variability and Sudden Death: What's the Connection? -- CHAPTER 23: Power Spectrum Analysis of Heart Rate in Diabetic. Patients: A Marker of Autonomic Dysfunction -- References -- Author Index

Download or read book Ventricular Function written by David C. Warltier and published by Lippincott Williams & Wilkins. This book was released on 1995 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beat the Heart Attack Gene written by Bradley Bale and published by Turner Publishing Company. This book was released on 2014-02-04 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: A revolutionary, personalized guide to preventing heart disease—America’s #1 killer Heart disease is the #1 cause of death in America. It affects 81 million Americans and is the culprit in one of every two deaths in the United States. Most people think that they are not at risk of a heart attack if they control their cholesterol and blood pressure, but they aren’t aware of other major risk factors. The good news is that with the right information and strategies, heart attacks are preventable—even if heart disease runs in the family. In Beat the Heart Attack Gene, world-renowned cardiovascular specialists Bradley Bale, MD and Amy Doneen, ARNP, present a new model for understanding and preventing heart disease. They explain the three different genetic types of cholesterol profiles and tailor treatments for each type, using their cutting-edge Bale/Doneen Method, a comprehensive, evidence-based medical treatment plan that detects cardiovascular disease (CVD) at early stages and stabilizes it with individualized medical and lifestyle therapy. Beat the Heart Attack Gene includes easy quizzes and self-tests that show how to determine cholesterol genotype as well as advice for how to apply that knowledge through and individualized lifestyle advice. For heart attack and stroke survivors, the Bale/Doneen Method also helps prevent recurrences by identifying and treating what's triggering the patient's disease—a crucial step that many cardiologists neglect. With their proven method utilized by healthcare professionals worldwide, Bale and Doneen empower readers by alerting them to potential health threats, and then offer personalized strategies so they can live healthy, active lives without fear of heart attack or stroke. Specifically, Beat the Heart Attack Gene addresses: *The hidden cause of most heart attacks *Early prevention methods *The dangerous cholesterol most doctors don’t check *Major red flags for heart attack and stroke risk, including gum disease *The genes that increase cardiovascular risk as much as smoking *The best and worst supplements and foods for your heart *10 surprising ways to prevent heart attacks

Download or read book Heart Rate Variability HRV Signal Analysis written by Markad V. Kamath and published by CRC Press. This book was released on 2016-04-19 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: Open a Window into the Autonomic Nervous SystemQuantifying the amount of autonomic nervous system activity in an individual patient can be extremely important, because it provides a gauge of disease severity in a large number of diseases. Heart rate variability (HRV) calculated from both short-term and longer-term electrocardiograms is an ideal win