The coronary circulation is central to sustaining myocardial viability.
Unlike the cir- culations of most other organs, if the coronary
circulation becomes insufficient to sustain myocardial contractile
function, overall quality of life rapidly declines and life can abruptly
end. In partnership with the cerebral circulation, the coronary circula-
tion plays a central role in sustaining life. However, unlike the
cerebral circulation, whose function is self-sufficient to define life,
the coronary circulation determines global blood flow and thus the
initial state for the remainder of the body. This unique condition,
together with the reality that coronary artery disease primarily affects
peo- ple in their productive years of life, has allowed physicians and
scientists who study the heart to enjoy a privileged position in the
field of medical research and clinical practice. Thus, it comes as
little surprise that many new and exciting research developments
involving the coronary circulation have recently come to the forefront
of medical thinking. This reality, coupled with the large number of
clinical trials of agents specif- ically designed to sustain or improve
coronary flow in many disease states, makes the timing of this monograph
relevant. The book features papers presented at a recent international
symposium, the fourth in a series of meetings on Applied Physiology of
the Peripheral Circulation. The papers selected by the editors review
the most impor- tant advances in the fields of cardiology and the
coronary circulation.