The evolving role of rescue therapy for acute myocardial infarction

Area of Science:

• Cardiology
• Interventional Cardiology
• Emergency Medicine

Background:

• Acute ST-elevation myocardial infarction (STEMI) requires prompt reperfusion.
• Fibrinolysis and percutaneous coronary intervention (PCI) are primary reperfusion strategies.
• Primary PCI offers superior reperfusion but limited global accessibility.

Purpose of the Study:

• To evaluate the safety and feasibility of transferring STEMI patients post-fibrinolysis for angiography and potential rescue PCI.
• To assess the effectiveness of rescue PCI in improving outcomes for patients with inadequate reperfusion after fibrinolysis.

Main Methods:

• Systematic review and meta-analysis of studies comparing fibrinolysis with subsequent transfer for rescue PCI versus conservative management.
• Analysis of patient transfer protocols and diagnostic angiography utilization.
• Evaluation of cardiovascular mortality and morbidity data.

Main Results:

• Transfer for diagnostic angiography and rescue PCI post-fibrinolysis is safe and feasible.
• Rescue PCI, particularly with stents and antiplatelet therapy, significantly reduces cardiovascular mortality and morbidity compared to conservative treatment.
• Inadequate reperfusion after fibrinolysis remains a challenge, highlighting the need for effective rescue strategies.

Conclusions:

• Transferring STEMI patients for rescue PCI after fibrinolysis is a viable strategy to improve outcomes.
• The increasing adoption of primary PCI and regional networks may reduce the future need for rescue PCI.
• Optimizing patient selection and timely intervention are crucial for managing STEMI.