Thrombolysis in Myocardial Infarction Risk Score for Secondary Prevention of Recurrent Cardiovascular Events in a...

Area of Science:

• Cardiology
• Preventive Medicine
• Clinical Risk Stratification

Background:

• Patients surviving myocardial infarction (MI) face a significant risk of subsequent cardiovascular (CV) events.
• Accurate risk stratification is crucial for implementing effective secondary prevention strategies post-MI.

Purpose of the Study:

• To evaluate the utility of the Thrombolysis in Myocardial Infarction (TIMI) Risk Score for Secondary Prevention (TRS 2°P) in stratifying risk among post-MI patients.
• To assess the association between TRS 2°P scores and the incidence of major adverse CV events.

Main Methods:

• An observational study involving 1,688 post-MI patients.
• Application of the TRS 2°P to stratify patients into different risk categories.
• Follow-up for a mean of 41.5 months to record a composite endpoint of CV death, non-fatal MI, and non-fatal ischemic stroke.

Main Results:

• A total of 405 patients (24.0%) experienced the primary composite CV endpoint.
• The annual incidence of CV events increased progressively with higher TRS 2°P scores, from 1.0% (score 0) to 39.9% (score ≥6).
• TRS 2°P demonstrated strong association with the primary outcome (HR 27.6) and CV death/non-fatal MI, with a sensitivity of 76.3% for the composite endpoint.

Conclusions:

• The TRS 2°P is a reliable tool for stratifying post-MI patients based on their risk of future CV events.
• The score's strong correlation with adverse outcomes supports its use in guiding secondary prevention efforts.