The ischemic complications of percutaneous transluminal coronary angioplast
y (PTCA) include abrupt closure, which occurs in 2% to 10% of patients and
is associated with increased morbidity and mortality. Periprocedural myocar
dial infarction due to side branch occlusion or embolization of platelet ag
gregates or thrombus occurs in 5% to 20% of patients. Patients with acute c
oronary syndromes, older age, and complex lesions are at greater risk of pe
riprocedural complications. Technical advances, primarily stenting, are use
ful in the prevention and management of acute closure, but are also accompa
nied by thrombotic complications. It remains to be seen whether the new ant
ithrombin agents reduce the rate of periprocedural complications if used in
combination with aspirin and new antiplatelet therapies. These new antipla
telet agents (ticlopidine, clopidogrel, abciximab, eptifibatide, and tirofi
ban) reduce the rate of ischemic complications and have become standard adj
unctive therapy for patients who undergo PTCA. Am J Med. 2000;108:309-316.
(C) 2000 by Excerpta Medica, Inc.