Delay to reperfusion in patients with acute myocardial infarction presenting to acute care hospitals: an...

Area of Science:

• Cardiology
• Emergency Medicine
• Health Services Research

Background:

• Timely reperfusion therapy is critical for ST-segment elevation myocardial infarction (STEMI) outcomes.
• Previous studies indicate significant delays in treatment initiation, impacting patient prognosis.

Purpose of the Study:

• To assess delays in reperfusion therapy for STEMI patients.
• To identify factors associated with prolonged treatment delays.
• To analyze trends in STEMI treatment delays over time.

Main Methods:

• Analysis of 5170 STEMI patients from the Global Registry of Acute Coronary Events (2003-2007).
• Evaluation of time intervals from hospital presentation to fibrinolysis or primary percutaneous coronary intervention (PCI).
• Statistical analysis to determine predictors of treatment delay.

Main Results:

• Median delay to fibrinolysis was 30 minutes; median delay to primary PCI was 86 minutes.
• No significant changes in delay times were observed during the study period (2003-2007).
• Geographic region, patient transfer status, and location were key predictors of prolonged delays; European patients experienced shorter delays.

Conclusions:

• No improvement in reperfusion therapy delays for STEMI patients was noted between 2003 and 2007.
• Healthcare system factors, including geographic location and patient transfer logistics, significantly influence treatment delays.
• Targeting modifiable healthcare system factors offers potential to reduce delays and improve outcomes for STEMI patients.