(Circulation. 2003;107:1100.)
© 2003 American Heart Association, Inc.
Special Review |
From the University of Colorado, Denver.
Correspondence to Michael Bristow, MD, PhD, University of Colorado HSC, 4200 E Ninth Ave, B139, Denver, Colorado 80262. E-mail Michael.Bristow@uchsc.edu
Key Words: heart failure nervous system, sympathetic receptors, adrenergic, alpha receptors, adrenergic, beta
An extract of the first 250 words of the full text is provided, because this article has no abstract. |
The great British-American scientist-philosopher Alfred North Whitehead divided progress into three stages, the second of which was termed precision, in which the "right ways and wrong ways" of an original idea are elucidated.1 During this period, reinterpretation of the basic idea occurs and is essential to progress. Whiteheads message is that important ideas are dynamic instruments that are constantly changing as new and usually unexpected information becomes available. This is why tests of particular hypotheses, including those tested in Phase III clinical trials, are often unsupportive, and why therapeutic paradigms constantly change. Within such an ephemeral milieu, the key to ultimate success is to view each unexpected or negative result as an opportunity for constructing and testing even more novel and valuable hypotheses within the framework of the general idea, to ascend to the final stage where progress can be "generalized."1
Whiteheads philosophical legacy is impressively in play in the area of antiadrenergic therapy of chronic heart failure (CHF). The unarguable basic idea is that the biologically powerful adrenergic compensatory mechanism plays a critical role in the natural history of CHF. It is the details or nuances within the general paradigm that continue to change, and lately, surprisingly so. As recently reviewed,2 the importance of dysfunctional adrenergic activation in CHF was first elucidated by work performed by Braunwalds group at the National Institutes of Health in the 1960s. Among other things, this early work provided the first evidence of marked adrenergic activation in CHF. However, on the basis of reduction
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