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J Am Coll Cardiol, 1992; 19:1421-1425
© 1992 by the American College of Cardiology Foundation
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Effects of diltiazem on recurrent myocardial infarction in patients with non-Q wave myocardial infarction

SC Wong, H Greenberg, WD Hager, and EM Dwyer Jr

Scripps Clinics, University of California-San Diego, La Jolla.

Diltiazem has been reported to reduce the short-term in-hospital reinfarction rate in patients with a non-Q wave myocardial infarction. In the long-term Multicenter Diltiazem Postinfarction Trial, there were 514 patients with non-Q wave myocardial infarction; 279 patients were randomized to the placebo group and 235 to the treatment group. The average follow-up period was 25 months. There was no difference in baseline clinical characteristics between the two groups. Early reinfarction (less than or equal to 6 months) occurred in 17 patients in the placebo group and in 2 patients in the diltiazem group (p less than 0.001). Late reinfarction (greater than 6 months) occurred in 13 patients in the placebo group and in 14 patients in the diltiazem group (p = NS). Initial and reinfarction electrocardiograms (ECGs) were analyzed by using a coding system that permitted identification of standard anatomic areas involved in the infarction process. Thirty-one of the 46 patients had a localized infarction on index and reinfarction ECGs. In the early reinfarction group, 10 (77%) of 13 infarctions occurred in the same ECG region in which the initial infarction had occurred; all 10 were in patients in the placebo group. Among the 18 patients with late reinfarction, the site of the second infarction was the same as that of the first in 9 patients and differed in 9. There was no difference between the placebo and diltiazem groups with respect to location of the infarction.(ABSTRACT TRUNCATED AT 250 WORDS)


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K. Ishikawa, S. Nakai, T. Takenaka, K. Kanamasa, J. Hama, I. Ogawa, T. Yamamoto, M. Oyaizu, A. Kimura, K. Yamamoto, et al.
Short-Acting Nifedipine and Diltiazem Do Not Reduce the Incidence of Cardiac Events in Patients With Healed Myocardial Infarction
Circulation, May 20, 1997; 95(10): 2368 - 2373.
[Abstract] [Full Text]


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Copyright © 1992 by the American College of Cardiology Foundation.