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Temporal Variations Of The Cardiovascular System
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Book Synopsis Temporal Variations of the Cardiovascular System by : Thomas F.H. Schmidt
Download or read book Temporal Variations of the Cardiovascular System written by Thomas F.H. Schmidt and published by Springer Science & Business Media. This book was released on 2013-04-18 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although it is widely recognized that there are significant variations in the circulation throughout the 24-hour day, these patterns have often been conceived as nuisance variables rather than functional differences. Responses of the circulation are examined here not as stable phenomena, but as integrated functions highly sensitive to environmental conditions, and driven by internal and external pacesetters. In this volume, cardiologists with a primary interest in hypertension or heart disease, chronobiologists, and psychologists join together for the first time to give the reader the opportunity to learn the extent and clinical significance of these changes from a chronobiological, behavioral and physiological perspective.
Book Synopsis Temporal Variations of the Cardiovascular System by : Thomas F. H. Schmidt
Download or read book Temporal Variations of the Cardiovascular System written by Thomas F. H. Schmidt and published by Springer Verlag. This book was released on 1992 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Regulation of Tissue Oxygenation, Second Edition by : Roland N. Pittman
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.
Book Synopsis Clinical Methods by : Henry Kenneth Walker
Download or read book Clinical Methods written by Henry Kenneth Walker and published by Butterworth-Heinemann. This book was released on 1990 with total page 1128 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to the techniques and analysis of clinical data. Each of the seventeen sections begins with a drawing and biographical sketch of a seminal contributor to the discipline. After an introduction and historical survey of clinical methods, the next fifteen sections are organized by body system. Each contains clinical data items from the history, physical examination, and laboratory investigations that are generally included in a comprehensive patient evaluation. Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis Pathophysiology of Cardiovascular Disease by : Naranjan S. Dhalla
Download or read book Pathophysiology of Cardiovascular Disease written by Naranjan S. Dhalla and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pathophysiology of Cardiovascular Disease has been divided into four sections that focus on heart dysfunction and its associated characteristics (hypertrophy, cardiomyopathy and failure); vascular dysfunction and disease; ischemic heart disease; and novel therapeutic interventions. This volume is a compendium of different approaches to understanding cardiovascular disease and identifying the proteins, pathways and processes that impact it.
Book Synopsis Heart Rate Variability: Clinical Applications and Interaction between HRV and Heart Rate by : Karin Trimmel
Download or read book Heart Rate Variability: Clinical Applications and Interaction between HRV and Heart Rate written by Karin Trimmel and published by Frontiers Media SA. This book was released on 2015-10-07 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last decades, assessment of heart rate variability (HRV) has increased in various fields of research. HRV describes changes in heartbeat intervals, which are caused by autonomic neural regulation, i.e. by the interplay of the sympathetic and the parasympathetic nervous systems. The most frequent application of HRV is connected to cardiological issues, most importantly to the monitoring of post-myocardial infarction patients and the prediction of sudden cardiac death. Analysis of HRV is also frequently applied in relation to diabetes, renal failure, neurological and psychiatric conditions, sleep disorders, psychological phenomena such as stress, as well as drug and addiction research including alcohol and smoking. The widespread application of HRV measurements is based on the fact that they are noninvasive, easy to perform, and in general reproducible – if carried out under standardized conditions. However, the amount of parameters to be analysed is still rising. Well-established time domain and frequency domain parameters are discussed controversially when it comes to their physiological interpretation and their psychometric properties like reliability and validity, and the sensitivity to cardiovascular properties of the variety of parameters seems to be a topic for further research. Recently introduced parameters like pNNxx and new dynamic methods such as approximate entropy and detrended fluctuation analysis offer new potentials and warrant standardization. However, HRV is significantly associated with average heart rate (HR) and one can conclude that HRV actually provides information on two quantities, i.e. on HR and its variability. It is hard to determine which of these two plays a principal role in the clinical value of HRV. The association between HRV and HR is not only a physiological phenomenon but also a mathematical one which is due to non-linear (mathematical) relationship between RR interval and HR. If one normalizes HRV to its average RR interval, one may get ‘pure’ variability free from the mathematical bias. Recently, a new modification method of the association between HRV and HR has been developed which enables us to completely remove the HRV dependence on HR (even the physiological one), or conversely enhance this dependence. Such an approach allows us to explore the HR contribution to the clinical significance of HRV, i.e. whether HR or its variability plays a main role in the HRV clinical value. This Research Topic covers recent advances in the application of HRV, methodological issues, basic underlying mechanisms as well as all aspects of the interaction between HRV and HR.
Book Synopsis Anatomy and Physiology by : J. Gordon Betts
Download or read book Anatomy and Physiology written by J. Gordon Betts and published by . This book was released on 2013-04-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis How Tobacco Smoke Causes Disease by :
Download or read book How Tobacco Smoke Causes Disease written by and published by . This book was released on 2010 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.
Book Synopsis Mechanisms of Vascular Disease by : Robert Fitridge
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.
Book Synopsis Cardiac Pacing and Electrophysiology by : André Aubert
Download or read book Cardiac Pacing and Electrophysiology written by André Aubert and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1992, clinical cardiac electrophysiology became a recognized sub-speciality of the American Board of Internal Medicine. The formal recognition of this highly specialized and technical field of medicine represents the culmination of thirty years of remarkable scientific and intellectual discovery. Beginning in the 1950s, cardiologists realized that cardiac arrhythmias were the cause of significant morbidity and the sudden death of at least 350,000 patients every year in the United States alone. At that time the only tools available for analyzing abnormal heart rhythms were the standard EKG machine and careful deductive reasoning. During the early 1960s, cardiac pacemakers reflected the first foray in the electrical therapy of cardiac arrhythmias. Pacemakers were first implanted in order to control syncopal episodes related to bradycardic heart rhythms. Although crude and bulky devices, their utility was immediately obvious to physicians and patients alike. The recognition that electrical signals could be recorded from inside the heart and that the heart's rhythm could be controlled by the application of electrical energy began the era of clinical cardiac electrophysiology which was to follow. In the late 1960s and early 1970s and at the peak of the Vietnam conflict. a group of cardiologists with special training in cardiac electrophysiology were sequestered at the US Public Health Service Hospital at Staten Island.
Book Synopsis Practical Cardiology by : Majid Maleki
Download or read book Practical Cardiology written by Majid Maleki and published by Elsevier Health Sciences. This book was released on 2017-08-25 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: From basic clinical facts to new advanced guidelines, Practical Cardiology, by Drs. Majid Maleki, Azin Alizadehasl, and Majid Haghjoo, is your new go-to resource for new developments in cardiology knowledge, imaging modalities, management techniques, and more. This step-by-step, practical reference is packed with tips and guidance ideal for residents, fellows, and clinicians in cardiology, as well as internal medicine, cardiac surgery, interventional cardiology, and pediatric cardiology. Features a wealth of information, including practical points from recently published guidelines, ECGs, hemodynamic traces of advanced imaging modalities in real patients, and much more. Offers a comprehensive review of cardiovascular medicine, from basic to advanced.
Book Synopsis MRI from Picture to Proton by : Donald W. McRobbie
Download or read book MRI from Picture to Proton written by Donald W. McRobbie and published by Cambridge University Press. This book was released on 2017-04-13 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: MR is a powerful modality. At its most advanced, it can be used not just to image anatomy and pathology, but to investigate organ function, to probe in vivo chemistry, and even to visualise the brain thinking. However, clinicians, technologists and scientists struggle with the study of the subject. The result is sometimes an obscurity of understanding, or a dilution of scientific truth, resulting in misconceptions. This is why MRI from Picture to Proton has achieved its reputation for practical clarity. MR is introduced as a tool, with coverage starting from the images, equipment and scanning protocols and traced back towards the underlying physics theory. With new content on quantitative MRI, MR safety, multi-band excitation, Dixon imaging, MR elastography and advanced pulse sequences, and with additional supportive materials available on the book's website, this new edition is completely revised and updated to reflect the best use of modern MR technology.
Book Synopsis Computer Analysis of Cardiovascular Signals by : M. Di Rienzo
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
Book Synopsis Physiology and Pharmacology of Biological Rhythms by : Peter H. Redfern
Download or read book Physiology and Pharmacology of Biological Rhythms written by Peter H. Redfern and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measured by any criteria, research in chronobiology in general and chronopharmacology in particular has expanded rapidly in recent years. This expansion has been paralleled by an increasing recognition by those outside the field of the relevance and significance of recent developments in chronobiology. Advances in two areas have been chiefly responsible. First, application of the full range of modern techniques in behavioral, neurochemical, and molecular biology have greatly improved our understanding of basic clock mechanisms. In several species the genetic basis of the circadian clock is being progressively delineated. A complete picture of the neurochemical and neuroanatomical structure of the mammalian clock is emerging and the complex pattern of control mechanisms involving endogenous clock mechan isms and photic and nonphotic zeitgebers is being built up as a result of behavioral studies. Secondly, in parallel with these exciting developments in basic science, clinical applications are being convincingly demonstrated in the general fields of pharmacology and medicine as well as in specific areas, e.g., jet lag, shiftwork maladaption syndrome, blindness, and cardiovascular system. It is therefore an opportune time to review progress in the field of chronopharmacology and to introduce some of the exciting developments and prospects to a readership beyond the confines of the chronobiological cognoscenti. This volume is therefore aimed primarily at the pharmacologist - whether basic, applied, or clinical-who is not a specialist in chronobiology.
Book Synopsis Heart-Brain Interactions by : Giuseppe Di Pasquale
Download or read book Heart-Brain Interactions written by Giuseppe Di Pasquale 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 the last decade there has been a growing interest in the study of the interactions between the heart and the brain, especially in the field of cerebral ischemia. The interactions between cardiovascular and cerebrovascular diseases are of relevance not only for research investigation, but also for clinical implications in the daily clinical practice. i.e. A wealth of information has been gathered particularly on three topics, cardiovascular consequences of cerebral injuries, cardioembolic stroke, and association of carotid and coronary artery disease. The available information, however, is still sparse and fragmentary mainly because of the lack of commun ication between neurologists and cardiologists. With the aim of improving communication between several disciplines and technologies, we started to organize since 1987 in Bologna, Italy, an international Symposium on heart brain interactions to be held every 3 years. Our intention was to gather prominent clinicians and researchers from outstanding cardiologic and neuro logic institutions actively involved in the study of heart-brain interactions. The ambitious goal has been to fit different pieces of information like in a puzzle. This book originates from the contributions presented at the 2nd Sympo sium which was held in Bologna on November 30-December 1, 1990. The book is subdivided into three sections: I cardiovascular consequences of cerebral damage, II cardiogenic cerebral ischemia, III cerebrovascular and coronary artery disease.
Book Synopsis Advances in Medical Biology by : Colette Baya
Download or read book Advances in Medical Biology written by Colette Baya and published by IOS Press. This book was released on 1994 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents the final reports of the 17 research groups supervised by the CEC programme COMAC-BIOLOGY, relating applications such as: standardization of diagnostic procedures; application of new biological techniques to health problems; sharing of technologies and reagents; provision of special biological systems; evaluation of effectiveness of measures aiming at health care; and collection, storage and dissemination of information.
Book Synopsis Cardiovascular Disability by : Institute of Medicine
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.
