The pharmaco-invasive approach to STEMI: when should fibrinolytic-treated patients go to the "cath lab"?

Area of Science:

• Cardiology
• Emergency Medicine
• Clinical Trials

Background:

• Primary percutaneous coronary intervention (PCI) trials show better outcomes than fibrinolytic therapy.
• System delays in routine practice can negate PCI benefits, especially within 2 hours of symptom onset.
• Field triage and prehospital fibrinolysis may yield comparable results to delayed PCI.

Purpose of the Study:

• To review the timing and indications for invasive strategies post-fibrinolytic therapy.
• To discuss rescue PCI and in-hospital revascularization for improved outcomes.
• To explore non-invasive methods for predicting failed reperfusion.

Main Methods:

• Review of existing clinical trial data and routine practice observations.
• Analysis of factors influencing clinical outcomes in acute myocardial infarction.
• Evaluation of non-invasive markers for reperfusion success.

Main Results:

• System delays can lead to similar clinical outcomes between PCI and fibrinolysis, particularly in early presenters.
• Liberal use of rescue PCI and in-hospital revascularization is crucial for favorable outcomes.
• ST recovery, patient characteristics, and point-of-care troponin T assays can aid in predicting reperfusion failure.

Conclusions:

• In routine practice, the benefits of primary PCI over fibrinolysis may be diminished by system delays.
• Timely rescue PCI and comprehensive revascularization are essential after fibrinolysis.
• Non-invasive assessments can help guide decisions regarding further invasive interventions.