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Long-term impact of multivessel disease on cause-specific mortality after ST elevation myocardial infarction treated with reperfusion therapy
  1. R J van der Schaaf1,
  2. J R Timmer1,
  3. J P Ottervanger1,
  4. J C A Hoorntje1,
  5. M-J de Boer1,
  6. H Suryapranata1,
  7. F Zijlstra2,
  8. J-H E Dambrink1
  1. 1Department of Cardiology, Isala klinieken, locatie Weezenlanden, Zwolle, The Netherlands
  2. 2Department of Cardiology, Thoraxcenter, University Medical Center, Groningen, The Netherlands
  1. Correspondence to:
    Dr Jan-Henk E Dambrink
    Isala klinieken, locatie Weezenlanden, Department of Cardiology, Groot Wezenland 20, 8011 JW Zwolle, The Netherlands; v.r.c.derks{at}


Objectives: To investigate the long-term impact of multivessel coronary artery disease (MVD) on cause-specific mortality in patients with ST elevation myocardial infarction (STEMI) treated with reperfusion therapy.

Methods and results: Patients with STEMI (n  =  395) treated with primary angioplasty or thrombolysis in the setting of a randomised clinical trial were enrolled in the study. Follow up was 8 (2) years. For patients who died all available records were reviewed to assess the specific cause of death. MVD was present in 57% of patients. Patients with MVD were older and more of them had diabetes and previous myocardial infarction. Compared with the non-MVD group, residual left ventricular ejection fraction was lower (45.9% v 49.6%, p  =  0.001) and total mortality was higher in patients with MVD (32% v 19%, p  =  0.002). After adjustment for potential confounders this association was not significant (hazard ratio 1.4, 95% confidence interval (CI) 0.9 to 2.2). When the specific cause of death was considered, sudden death was comparable between patients with and without MVD (10% v 8%, p  =  0.49) but death caused by heart failure was significantly higher in patients with MVD (hazard ratio 7.4, 95% CI 1.7 to 32.2).

Conclusion: Patients with STEMI and MVD have a higher long-term mortality than do patients with non-MVD. MVD is not an independent predictor of long-term total mortality or sudden death. However, MVD is a very strong and independent predictor of long-term death caused by heart failure.

  • HR, hazard ratio
  • LVEF, left ventricular ejection fraction
  • MVD, multivessel disease
  • PCI, percutaneous coronary intervention
  • STEMI, ST elevation myocardial infarction

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  • Published Online First 15 May 2006

  • Competing interests: None declared.