Predictors of mortality in ST-elevation MI patients: A prospective study

Area of Science:

• Cardiology
• Emergency Medicine
• Clinical Research

Background:

• ST-elevation myocardial infarction (STEMI) is a critical condition requiring rapid intervention.
• Primary Percutaneous Coronary Intervention (PCI) is the gold standard treatment for STEMI.
• Identifying predictors of mortality post-PCI is crucial for improving patient outcomes.

Purpose of the Study:

• To define factors predicting mortality in STEMI patients undergoing primary PCI.
• To identify key physiological and time-based parameters associated with adverse outcomes.
• To establish thresholds for high-risk patients.

Main Methods:

• Prospective study of 167 STEMI patients undergoing primary PCI over 12 months.
• Calculation of physiological parameters including Modified Shock Index (MSI) and vital signs.
• Logistic regression and ROC curve analysis to identify significant mortality predictors.

Main Results:

• Significant predictors of 30-day mortality included age, systolic blood pressure (<95 mmHg), MSI (≥0.85), and time from consultation to catheter lab activation (>3.5 minutes).
• Age (≥71.5 years) was also a significant predictor.
• Male gender predominated (76.6%), with a mean age of 61.9 years.

Conclusions:

• Age, systolic blood pressure, MSI, and pre-PCI activation time are significant predictors of mortality in STEMI patients.
• Optimizing emergency physician protocols for prehospital resuscitation and timely catheter lab activation can reduce STEMI mortality.
• These findings aid in risk stratification and management of STEMI patients receiving primary PCI.