The Interval Force Relationship Of The Heart PDF Download
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Author | : Mark I. M. Noble |
Publisher | : Cambridge University Press |
Total Pages | : 389 |
Release | : 1992-08-27 |
Genre | : Medical |
ISBN | : 0521400228 |
Download The Interval-Force Relationship of the Heart Book in PDF, ePub and Kindle
This 1992 volume examines the important relationship, initially studied in 1871 by Bowditch, between the strength of the heartbeat and the interval between beats.
Author | : Ihor Gussak |
Publisher | : Springer Science & Business Media |
Total Pages | : 549 |
Release | : 2003-03-13 |
Genre | : Medical |
ISBN | : 1592593623 |
Download Cardiac Repolarization Book in PDF, ePub and Kindle
A comprehensive review of all the latest developments in cardiac electrophysiology, focusing on both the clinical and experimental aspects of ventricular repolarization, including newly discovered clinical repolarization syndromes, electrocardiographic phenomena, and their correlation with the most recent advances in basic science. The authors illuminate the basic electrophysiologic, molecular, and pharmacologic mechanisms underlying ventricular repolarization, relate them to specific disease conditions, and examine the future of antiarrhythmic drug development based on both molecular and electrophysiological properties. They also fully review the clinical presentation and management of specific cardiac repolarization conditions.
Author | : Paul F. Cranefield |
Publisher | : Rockefeller Univ. Press |
Total Pages | : 224 |
Release | : 2012-09-30 |
Genre | : Science |
ISBN | : |
Download Paired Pulse Stimulation of the Heart Book in PDF, ePub and Kindle
Author | : Karin Trimmel |
Publisher | : Frontiers Media SA |
Total Pages | : 168 |
Release | : 2015-10-07 |
Genre | : Physiology |
ISBN | : 2889196526 |
Download Heart Rate Variability: Clinical Applications and Interaction between HRV and Heart Rate Book in PDF, ePub and Kindle
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.
Author | : Neil B. Ingels |
Publisher | : IOS Press |
Total Pages | : 462 |
Release | : 1996 |
Genre | : Medical |
ISBN | : 9789051992113 |
Download Systolic and Diastolic Function of the Heart Book in PDF, ePub and Kindle
Chapter 22: Crossbridge and Muscle Properties, Energetics, and Pressure-Volume Area -- Chapter 23: Constancy and Variability of Oxygen Costs of Mechanical Energy (PVA) and Contractility (Emax) -- Chapter 24: Tight Coupling between Regional Myocardial Oxygen Consumption and Contractile Function -- Chapter 25: Force-Frequency Relation, Force-Interval Relation, and Mechanical Restitution -- Chapter 26: Elastance-Based Mechanical Restitution Provides Data from the Intact Heart Not Available from Any Other Technique -- Chapter 27: Contractility Indices -- Chapter 28: Searching for Indices of Contractility Is Counterproductive -- Chapter 29: Rapid Contractile Upregulation Rematches Stroke Work to Increased Afterload Independent of Ventricular Geometry, Afterload-Related Coronary Perfusion Pressure Fluctuations and Baseline Contractile State -- Chapter 30: Wall Thickening, Shears, and Cleavage Planes -- Chapter 31: Mechanisms of Large Ventricular Wall Shortening and Thickening -- Chapter 32: Twisting, Torsion, and Other Shears -- Chapter 33: Ventricular Twist and Its Relationship to Pressure Volume and Shortening -- Chapter 34: Differences in Systolic and Diastolic Torsional Deformation of the Left Ventricle -- Chapter 35: Coronary Flow, Systolic Perfusion, and the "Gregg Phenomenon -- Chapter 36: Intramyocardial Hydraulic Regulation of Cardiac Mechanics and Energetics -- Chapter 37: Left Ventricular Afterload and Arterial Coupling -- Indexes -- Author Index -- Affiliation Index -- Subject Index
Author | : Achilles J. Pappano |
Publisher | : Elsevier Health Sciences |
Total Pages | : 305 |
Release | : 2012-12-20 |
Genre | : Medical |
ISBN | : 0323088260 |
Download Cardiovascular Physiology E-Book Book in PDF, ePub and Kindle
Cardiovascular Physiology gives you a solid understanding of how the cardiovascular system functions in both health and disease. Ideal for your systems-based curriculum, this title in the Mosby Physiology Monograph Series explains how the latest concepts apply to real-life clinical situations. Consult this title on your favorite e-reader, conduct rapid searches, and adjust font sizes for optimal readability. Get clear, accurate, and up-to-the-minute coverage of the physiology of the cardiovascular system. Master the material easily with objectives at the start of each chapter; self-study questions, summaries, and key words and concepts. Grasp the latest concepts in vascular, molecular, and cellular biology as they apply to cardiovascular function, thanks to molecular commentaries in each chapter. Apply information to clinical situations with the aid of clinical commentaries and highlighted clinical vignettes throughout.
Author | : Michitoshi Inoue |
Publisher | : Springer Science & Business Media |
Total Pages | : 330 |
Release | : 2013-11-09 |
Genre | : Medical |
ISBN | : 4431683674 |
Download Regulation of Coronary Blood Flow Book in PDF, ePub and Kindle
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.
Author | : Barry J. Maron |
Publisher | : John Wiley & Sons |
Total Pages | : 527 |
Release | : 2008-04-15 |
Genre | : Medical |
ISBN | : 140514615X |
Download Diagnosis and Management of Hypertrophic Cardiomyopathy Book in PDF, ePub and Kindle
Diagnosis and Management of Hypertrophic Cardiomyopathy is aunique, multi-authored compendium of information regarding thecomplexities of clinical and genetic diagnosis, natural history,and management of hypertrophic cardiomyopathy (HCM)—the mostcommon and important of the genetic cardiovasculardiseases—as well as related issues impacting the health oftrained athletes. Edited by Dr. Barry J. Maron, a world authority on HCM, and withmajor contributions from all of the international experts in thisfield, this book provides a single comprehensive source ofinformation concerning HCM. Recent advances in the field arediscussed, including the importance of left ventricular outflowtract obstruction, the use of implantable defibrillators for theprevention of sudden death in young people, definition of thegenetic basis for HCM and its role in clinical diagnosis and riskstratification, the development of more precise strategies forassessing the level of risk for sudden death among all patientswith HCM, and the evolution of invasive interventions for heartfailure symptoms, such as surgical management and its alternatives(alcohol septal ablation and dual-chamber pacing). Key Features: Contributions from all experts in the field,representing diverse viewpoints regarding this heterogeneousdisease and related issues in athletes Information to dispel misunderstandings regarding issuesassociated with HCM and cardiovascular disease in athletes The only comprehensive source of information available on thetopic
Author | : Arnold M. Katz |
Publisher | : |
Total Pages | : 470 |
Release | : 1977 |
Genre | : Medical |
ISBN | : |
Download Physiology of the Heart Book in PDF, ePub and Kindle
Author | : Marianne J. Legato |
Publisher | : Springer Science & Business Media |
Total Pages | : 376 |
Release | : 1987-05-31 |
Genre | : Medical |
ISBN | : |
Download The Stressed Heart Book in PDF, ePub and Kindle
The Stressed Heart is truly unique in concept and will provide an eXCItmg adventure to the reader no matter what his or her field of expertise and interest. The title, although quite appropriate, does not adequately indicate the range of topics considered or the rational interrelationships among them. Indeed, perhaps the most important point to be learned from the book is that a serious consideration of the response of the heart to mechanical overload, ischemia, or excessive humoral stimuli must include evaluation of each of the topics in the table of contents. The heart responds to stress through alterations in both structure and function. How these changes are brought about is the subject of the initial chapters. These consider first the normal regulation of gene expression in the heart, the rapid response to mechanical overload that leads to both quantitative and qualitative changes in the contractile proteins, and our current understand ing of the signals that might be elicited by stress and alter gene expression. One chapter emphasizes the fact that, regardless of the nature of the stress, the common denominator is a discrepancy between energy requirements and expenditure. The central role of cellular acidosis in initiating the sequence of responses to stress and the possible roles of peptide regulators of transcription and protein regulators of translation are considered in detail.