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The Heart and Circulation

An Integrative Model

ISBN: 9781447152767
ISBN: 9781447152767

Ημ. Έκδοσης






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An Integrative Model

Άμεσα Διαθέσιμο


  • Presents a coherent model addressesing the controversies and future developments in basic science circulatory research and clinical cardiology
  • Defines the inconsistencies of the commonly accepted pressure-propulsion model of circulation
  • Provides evidence for a new circulation model with the potential to change the way in which we think about circulation radically

What drives the circulation? In this comprehensive review of existing circulation models, the conventional view that the heart is a pressure-propulsion pump is challenged. The existing models fail to explain an increasing number of observed circulatory phenomena.

A unifying circulation model is proposed in which the blood, responding to metabolic demands of the tissues, is the primary regulator of cardiac output. This new model arises from accumulated clinical and experimental evidence. The heart, rather than being an organ of blood propulsion, assumes a secondary role and generates pressure by impeding the flow of blood. This is supported by examples from the fields of early embryonic circulation, comparative phylogeny, functional morphology, exercise physiology and a range of clinical scenarios.

The Heart and Circulation: An Integrative Model offers a paradigm shift in the understanding of circulatory phenomena. It will become a valuable resource for all those clinicians, researchers, educators and students who, having been confronted with the paradox of the circulation, are looking for a broader interpretation.



Early Embryo Circulation.- Introduction.-

Early Embryo Circulation – Morphologic

Features.- The Onset of Circulation.- Hemodynamics of the Early Embryo Circulation.- Flow Patterns in the Early Embryo Circulation.- Heart Vortex Formation.- Is There a Circulation Without a Heart? .- Embryo Heart is not a Peristaltic Pump.- Flow Perturbation Experiments.- Heart Rate Perturbations.- The Heart as Generator of Pressure.- Ventriculo-Vascular Interaction.- A Brief Comparative Phylogeny.- Evolutionary Aspect of the Rhythmical System.- PART II – Mature Circulation.- Functional Morphology of the Heart.- Regulation of Cardiac Output.- Models of the Heart.- Cardiovascular Response during Exercise.- Hemodynamic Effects of Aortic Occlusion.- Increased Pulmonary Flows.- Single Ventricle Physiology.- Blood as an Organ.