Interventional cardiologists have quickly replaced bare metal stents
with intravascular drug-eluting stents (DES) for treating and preventing
restenosis, largely on the basis of empirical evidence that shows
profound reduction in angiographic and clinical restenosis. A critical
reassessment of the published evidence, however, suggests that the
putative superiority of intravascular drug-eluting stents is founded on
questionable premises, including overestimation of restenosis benefit,
underestimation of the risk for stent thrombosis, overreliance on "soft"
rather than "hard" outcomes and the attendant overestimation of
cost-effectiveness. Because the long-term incremental risks, benefits,
and costs of drug-eluting stents have not yet been optimally evaluated
in a broad spectrum of patient and lesion cohorts, the rational role of
these devices in clinical management warrants reappraisal. This book
will provide a brief overview of the development of drug-eluting stents
from the laboratory bench to their investigation in clinical trials and
their clinical use.