Long-term impact of multivessel disease on cause-specific mortality after ST elevation myocardial infarction treated

R J van der Schaaf1, J R Timmer, J P Ottervanger

  • 1Department of Cardiology, Isala klinieken, locatie Weezenlanden, Zwolle, The Netherlands.

Insights

Multivessel coronary artery disease (MVD) increases long-term mortality in ST-elevation myocardial infarction (STEMI) patients. MVD strongly predicts heart failure deaths but not overall mortality or sudden death.

Area of Science:

  • Cardiology
  • Clinical Medicine
  • Public Health

Background:

  • ST-elevation myocardial infarction (STEMI) is a critical cardiovascular event.
  • Multivessel coronary artery disease (MVD) is common in STEMI patients.
  • Reperfusion therapy is standard for STEMI management.

Purpose of the Study:

  • To assess the long-term impact of MVD on cause-specific mortality after STEMI.
  • To determine if MVD is an independent predictor of mortality post-reperfusion therapy.

Main Methods:

  • Study included 395 STEMI patients treated with reperfusion therapy.
  • Follow-up duration was 8 years with cause-specific mortality assessment.
  • Multivessel coronary artery disease (MVD) presence was determined for all patients.

Main Results:

  • MVD was present in 57% of STEMI patients.
  • MVD patients had lower ejection fraction and higher total mortality (32% vs 19%).
  • MVD independently predicted heart failure deaths (HR 7.4) but not sudden death or total mortality.

Conclusions:

  • STEMI patients with MVD face higher long-term mortality.
  • MVD is a significant predictor of death from heart failure post-STEMI.
  • MVD is not an independent predictor of overall mortality or sudden cardiac death.
Abstract