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Non-culprit coronary artery percutaneous coronary intervention during acute ST-segment elevation myocardial
Mustafa Toma1, Christopher E Buller, Cynthia M Westerhout
1Canadian VIGOUR Centre, University of Alberta, 2-51 Medical Sciences Building, Edmonton, AB, Canada T6G 2H7.
Insights
Performing non-culprit interventions during primary percutaneous coronary intervention (PCI) in ST-elevation myocardial infarction patients with multi-vessel coronary artery disease increases 90-day mortality risk. Current guidelines discouraging these procedures in stable patients are supported.
Area of Science:
- Cardiology
- Interventional Cardiology
- Clinical Outcomes Research
Background:
- Multi-vessel coronary artery disease (MVD) is common in ST-elevation myocardial infarction (STEMI) patients.
- Primary percutaneous coronary intervention (PCI) addresses the infarct-related artery (IRA).
- The role of non-culprit intervention during primary PCI remains debated.
Purpose of the Study:
- To determine the incidence of non-culprit PCI during primary PCI.
- To assess the association between non-culprit PCI and 90-day outcomes in STEMI patients with MVD.
- To evaluate the propensity for performing non-culprit PCI.
Main Methods:
- Analysis of data from the APEX-AMI trial.
- Inclusion of STEMI patients with MVD who underwent primary PCI.
- Comparison of outcomes between patients receiving IRA-only PCI versus those with non-culprit PCI.
Main Results:
- Non-culprit PCI was performed in 9.9% of MVD patients.
- The 90-day mortality rate was significantly higher in the non-culprit PCI group (12.5% vs. 5.6%).
- Non-culprit PCI remained independently associated with increased 90-day mortality (aHR 2.44).
Conclusions:
- Non-culprit interventions at the time of primary PCI in MVD patients are associated with increased mortality.
- Findings support current guidelines against routine non-culprit PCI in stable primary PCI settings.
- Further investigation via a prospective randomized trial is suggested.
Aims:
To examine the incidence of and propensity for non-culprit interventions performed at the time of the primary percutaneous coronary intervention (PCI) and its association with 90-day outcomes.
Methods And Results:
We examined the incidence, propensity for, and associated 90-day outcomes following non-culprit interventions performed at the time of primary PCI among ST-elevation myocardial infarction patients with multi-vessel coronary artery disease (MVD). Of the 5373 patients who underwent primary PCI in the APEX-AMI trial, 2201 had MVD. Of those, 217 (9.9%) underwent non-infarct-related arteries (IRA) PCI, whereas 1984 (90.1%) underwent PCI of the IRA alone. Ninety-day death and death/CHF/shock were higher in the non-IRA group compared with the IRA-only PCI group (12.5 vs. 5.6%, P (log-rank) < 0.001 and 17.4 vs. 12.0%, P (log-rank) = 0.020, respectively). After adjusting for patient and procedural characteristics as well as propensity for performing non-IRA PCI, this procedure remained independently associated with an increased hazard of 90-day mortality [adjusted hazard ratio 2.44, 95% CI (1.55-3.83), P < 0.001].
Conclusion:
Non-culprit coronary interventions were performed at the time of primary PCI in 10% of MVD patients and were significantly associated with increased mortality. Our data support current guideline recommendations discouraging the performance of such procedures in stable primary PCI patients. Prospective randomized study of this issue may be warranted.
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