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Impact of baseline platelet count in patients undergoing primary percutaneous coronary intervention in acute myocardial infarction (from the CADILLAC trial).

Publication ,  Journal Article
Nikolsky, E; Grines, CL; Cox, DA; Garcia, E; Tcheng, JE; Sadeghi, M; Mehran, R; Lansky, AJ; Na, Y; Stone, GW
Published in: Am J Cardiol
April 15, 2007

Despite the well-recognized role of platelets in the pathogenesis of acute myocardial infarction (AMI) and in the vascular responses to angioplasty, the relation between platelet count and outcomes after primary percutaneous coronary intervention (PCI) in AMI is unknown. We therefore determined the effect of baseline platelet count on clinical and angiographic outcomes of patients with AMI undergoing primary PCI. In the prospective, randomized CADILLAC trial, platelet count on admission was available in 2,021 of 2,082 patients (97.0%). Angiographic results and outcomes at 30 days and 1 year were stratified by quartiles of platelet count. Median platelet count was 231 x 10(9)/L (range 38 to 709). Primary PCI angiographic success rates were independent of platelet count. The 30-day incidence of target vessel thrombosis or reocclusion increased steadily across the higher quartiles of baseline platelet count (0.2%, 0.6%, 1.0%, and 2.0%, p = 0.027). At 1 year, patients with a baseline platelet count >or=234 versus <234 x 10(9)/L had higher rates of death or reinfarction (8.9% vs 4.5%, p <0.0001), death (5.8% vs 3.1%, p = 0.002), and reinfarction (3.4% vs 1.6%, p = 0.008). By multivariable analysis, a higher baseline platelet count was the strongest predictor of 1-year death or reinfarction (hazard ratio [HR] per 10,000 increase in platelet count 1.02, 95% confidence interval [CI] 1.02 to 1.07, p <0.0001) and independently predicted reinfarction (HR 1.06, 95% CI 1.02 to 1.09, p = 0.002) and cardiac mortality (HR 1.03, 95% CI 1.00 to 1.06, p = 0.055) at 1 year. In conclusion, a higher baseline platelet count in patients with AMI is a powerful independent predictor of death and reinfarction within the first year after primary PCI.

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Published In

Am J Cardiol

DOI

ISSN

0002-9149

Publication Date

April 15, 2007

Volume

99

Issue

8

Start / End Page

1055 / 1061

Location

United States

Related Subject Headings

  • Treatment Outcome
  • Stents
  • Recurrence
  • Prospective Studies
  • Platelet Glycoprotein GPIIb-IIIa Complex
  • Platelet Count
  • Platelet Aggregation Inhibitors
  • Myocardial Infarction
  • Middle Aged
  • Male
 

Citation

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Nikolsky, E., Grines, C. L., Cox, D. A., Garcia, E., Tcheng, J. E., Sadeghi, M., … Stone, G. W. (2007). Impact of baseline platelet count in patients undergoing primary percutaneous coronary intervention in acute myocardial infarction (from the CADILLAC trial). Am J Cardiol, 99(8), 1055–1061. https://doi.org/10.1016/j.amjcard.2006.11.066
Nikolsky, Eugenia, Cindy L. Grines, David A. Cox, Eulogio Garcia, James E. Tcheng, Mehrdad Sadeghi, Roxana Mehran, Alexandra J. Lansky, Yingbo Na, and Gregg W. Stone. “Impact of baseline platelet count in patients undergoing primary percutaneous coronary intervention in acute myocardial infarction (from the CADILLAC trial).Am J Cardiol 99, no. 8 (April 15, 2007): 1055–61. https://doi.org/10.1016/j.amjcard.2006.11.066.
Nikolsky E, Grines CL, Cox DA, Garcia E, Tcheng JE, Sadeghi M, et al. Impact of baseline platelet count in patients undergoing primary percutaneous coronary intervention in acute myocardial infarction (from the CADILLAC trial). Am J Cardiol. 2007 Apr 15;99(8):1055–61.
Nikolsky, Eugenia, et al. “Impact of baseline platelet count in patients undergoing primary percutaneous coronary intervention in acute myocardial infarction (from the CADILLAC trial).Am J Cardiol, vol. 99, no. 8, Apr. 2007, pp. 1055–61. Pubmed, doi:10.1016/j.amjcard.2006.11.066.
Nikolsky E, Grines CL, Cox DA, Garcia E, Tcheng JE, Sadeghi M, Mehran R, Lansky AJ, Na Y, Stone GW. Impact of baseline platelet count in patients undergoing primary percutaneous coronary intervention in acute myocardial infarction (from the CADILLAC trial). Am J Cardiol. 2007 Apr 15;99(8):1055–1061.
Journal cover image

Published In

Am J Cardiol

DOI

ISSN

0002-9149

Publication Date

April 15, 2007

Volume

99

Issue

8

Start / End Page

1055 / 1061

Location

United States

Related Subject Headings

  • Treatment Outcome
  • Stents
  • Recurrence
  • Prospective Studies
  • Platelet Glycoprotein GPIIb-IIIa Complex
  • Platelet Count
  • Platelet Aggregation Inhibitors
  • Myocardial Infarction
  • Middle Aged
  • Male