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Heart Failure, Second Edition



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Author: Marc Semigran

Publisher: CRC Press

Genres:

Publish Date: December 7, 2012

ISBN-10: 142007699X

Pages: 648

File Type: PDF

Language: English

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Book Preface

Since the publication of the First Edition of this text, heart failure has grown as a health care problem in both developed and developing countries, with both an increase in the number of patients and greater awareness of the disease among clinicians. Progress in our understanding of the cellular mechanisms of cardiac dysfunction has occurred, and contributions from the areas of developmental biology and regulation of cell survival continue to inform strategies to prevent and treat heart failure. During the past fi ve years, our appreciation for the role of extracardiac organs in the pathophysiology of heart failure has increased, particularly changes in pulmonary and systemic vascular function, gas exchange in the lungs, and in the central nervous system.

In response to the advances in our understanding of the biology of cardiac function and pathophysiology of the heart failure syndrome, the treatment of heart failure has also evolved. Although several new pharmacotherapies have entered late-stage clinical trial since the publication of the First Edition of this text, perhaps the greatest advance has been in the development of devices to treat heart failure, such as resynchronization therapy, ultrafi ltration, and mechanical circulatory support. In addition to improving cardiovascular function, these devices also are capable of providing feedback to clinicians and patients that allow them to respond to changes in circulatory physiology and optimization of treatment.

In order to inform the reader of recent progress in our understanding of the pathophysiology and treatment of heart failure, signifi cant additions have been made to each of the sections of the text. Part I, “Cellular and Molecular Basis for Heart Failure” has been revised to include a chapter covering the relevance of developmental biology to the pathophysiology of cardiac dysfunction, including a discussion of the recurrence of expression of fetal genes in the adult with heart failure. A chapter describing animal models of heart failure has been added. The latter chapter provides particular insight into the debate regarding pharmacologic manipulation of the alterations that occur in cardiomyocyte substrate utilization. The second section of the text, “Pathophysiology of Heart Failure,” now contains chapters describing recent advances in the understanding of alterations of renal sodium and water excretion that occur in heart failure. A third section, “The Demographics, Diagnosis, and Monitoring of Heart Failure” has been newly added to the text. Chapters in this section describe the classic methods of clinical diagnosis of heart failure as well as the utility of newer imaging modalities that identify the causes and severity of cardiac impairment. It is now recognized that the major cause of hospitalization in heart failure patients is the occurrence of acute decompensated heart failure, and repeated admissions leads to the progression of myocardial and end-organ dysfunction. In response, diagnostic methods have recently been developed to identify the physiologic and neurohormonal changes that precede decompensation. The effective utilization of this information to guide modifi cation of therapy is discussed in this section, as are advances in the use of biomarkers to guide the diagnosis and treatment of heart failure


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