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Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
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Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction

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Recurrent myocardial infarction after primary percutaneous coronary intervention for ST-segment elevation myocardial

Wouter J Kikkert1, Loes P Hoebers1, Peter Damman1

  • 1Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.

The American Journal of Cardiology
|November 6, 2013
PubMed

Insights

Recurrent myocardial infarction (MI) after primary percutaneous coronary intervention (PPCI) is common, increasing risks of death, stroke, and bleeding. Late recurrent MI poses the highest cardiac mortality risk.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Clinical Outcomes Research

Background:

  • Recurrent myocardial infarction (MI) following primary percutaneous coronary intervention (PPCI) and stenting is a significant concern.
  • The determinants and prognostic implications of recurrent MI in contemporary ST-segment elevation MI (STEMI) patients are not fully understood.

Purpose of the Study:

  • To investigate the predictors and prognostic impact of recurrent MI on subsequent clinical outcomes.
  • To analyze the association of recurrent MI with mortality, stroke, and bleeding events in STEMI patients treated with PPCI.

Main Methods:

  • A cohort of 1,700 STEMI patients treated with PPCI and stenting between 2003 and 2008 was analyzed.
  • Recurrent MI events were tracked during a median follow-up of 4 years and 7 months.
  • Multivariable analysis was used to assess the risk factors and outcomes associated with recurrent MI.

Main Results:

  • The incidence of recurrent MI was 21.2% over the follow-up period.
  • Recurrent MI significantly increased the risk of cardiac mortality (HR 6.86), noncardiac mortality (HR 2.02), stroke (HR 3.68), and severe bleeding (HR 3.17).
  • Late recurrent MI (>1 year post-PPCI) was associated with the highest risk of subsequent cardiac mortality (HR 7.98).

Conclusions:

  • Recurrent MI is a relatively common and serious complication after PPCI in STEMI patients.
  • Recurrent MI significantly elevates the risk of adverse outcomes, including death, stroke, and bleeding.
  • The timing of recurrent MI influences its prognostic impact, with late recurrences carrying the highest mortality risk.

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