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"A stratified pathway to stent-free reperfusion: Selecting suitable patients in ST-elevation myocardial infarction"
Rafael Mila1, Juan Albistur1, María Valdez1
1Department of Cardiology, Unidad Académica de Cardiología, Centro Cardiovascular Universitario - Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Uruguay.
Insights
Individualized reperfusion strategies for ST-elevation myocardial infarction (STEMI) are feasible in clinical practice. This approach showed similar safety outcomes to immediate stenting, suggesting potential for tailored patient care.
Area of Science:
- Cardiology
- Interventional Cardiology
- Acute Coronary Syndromes
Background:
- The DANAMI-3 DEFER study indicated that deferring stent implantation in ST-elevation myocardial infarction (STEMI) is safe but not superior to immediate stenting.
- An individualized revascularization strategy for STEMI, based on careful patient selection, may offer feasibility and effectiveness.
Purpose of the Study:
- To assess the feasibility of implementing an individualized reperfusion strategy in STEMI patients.
- To compare outcomes between deferred stenting and immediate stenting in STEMI.
Main Methods:
- Prospective, non-randomized study of 198 STEMI patients undergoing primary percutaneous coronary intervention (PCI).
- Patients were assigned to deferred stenting (DS, n=19) or immediate stenting (Control, n=179) using a multimodal approach.
- Primary endpoints included all-cause mortality and major adverse cardiac and cerebrovascular events (MACCE).
Main Results:
- The DS group had significantly lower stent implantation rates (10.5% vs. 97.7%) and higher use of thrombus aspiration and glycoprotein IIb/IIIa inhibitors.
- No significant differences were found in all-cause mortality (5.3% vs. 8.9%) or MACCE (10.5% vs. 8.4%) between the groups.
Conclusions:
- Individualized reperfusion strategies for STEMI are feasible in real-world clinical settings.
- Findings support further investigation to refine patient selection for optimized STEMI treatment.
Background:
The DANAMI-3 DEFER study demonstrated that deferring stent implantation in ST-elevation myocardial infarction (STEMI) is safe, although not superior to immediate stenting. It is possible that an individualized revascularization strategy in STEMI, achieved through appropriate patient selection, could be feasible and effective.
Methods:
This prospective, non-randomized study included 198 patients with STEMI who underwent primary percutaneous coronary intervention (PCI) between October 2019 and November 2021. Patients were assigned to either the deferred stenting (DS) group (n = 19) or the control group (C) undergoing immediate stenting (n = 179) based on a multimodal approach integrating coronary angiography, intravascular imaging, physiological assessments, and clinical judgment. The primary endpoints included all-cause mortality and major adverse cardiac and cerebrovascular events (MACCE).
Results:
The DS group showed a significantly lower rate of stent implantation (10.5 % vs. 97.7 %, p < 0.001) and a higher use of thrombus aspiration (89.5 % vs. 30.7 %, p < 0.001) and glycoprotein IIb/IIIa inhibitors (31.6 % vs. 6.7 %, p < 0.001) compared to the C group. No significant differences were observed between the groups in terms of all-cause mortality (5.3 % vs. 8.9 %, p = 0.59) or MACCE (10.5 % vs. 8.4 %, p = 0.71).
Conclusions:
This study demonstrates the feasibility of implementing individualized reperfusion strategies in STEMI within a real-world clinical setting. The findings, while limited by the study design, generate valuable hypotheses that warrant further investigation to refine patient selection criteria and optimize outcomes.
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