Bates
DW, Miller E, Bernstein SJ, Hauptman PJ, Leape LL.
Coronary angiography and angioplasty after acute myocardial infarction.
Ann Intern Med 1997;126(7):539-50.
This paper reviews the published data on the use of coronary angiography
after acute myocardial infarction (AMI) and the use of angioplasty. Data
were obtained from literature listed in MEDLINE records from January 1970
through June 1995 and articles listed in bibliographies of that literature.
The benefits of angiography undertaken at different times after AMI,
with and without thrombolytic therapy, are reviewed. Additionally, the
complications of MI that may increase the benefit of angiography and revascularization
are discussed (persistent chest pain, mitral regurgitation, ventricular
septal defect, shock, and persistent pulmonary edema).
Other factors are associated with worse outcomes after MI (left ventricular
function, increased age, presence of three-vessel coronary disease, previous
myocardial infarction, non-Q-wave infarction, female sex, history of smoking,
and presence of diabetes). However, no widely used scale is available
to summarize risk factors and to predict complications of angiography
or benefits of revascularization. In general, patients whose outcomes
are predicted to be worse can generally be expected to respond better
to aggressive intervention.
(Note: This review article does not discuss the issue of race, but it
is relevant to understanding the implications of the racial differences
in angiography and revascularization procedure rates that have been demonstrated
in other studies.)