Post-PCI outcomes in STEMI patients with coronary ectasia: meta-analysis

Area of Science:

• Cardiology
• Interventional Cardiology
• Vascular Biology

Background:

• Coronary ectasia (CE) involves coronary artery dilation, 1.5 times the surrounding vessel diameter.
• Outcomes of percutaneous intervention (PCI) in ST-elevated myocardial infarction (STEMI) patients with CE are debated.

Purpose of the Study:

• To compare PCI outcomes in STEMI patients with CE versus those without ectasia (NE).
• To analyze factors influencing PCI success and complications in CE patients.

Main Methods:

• Systematic review and meta-analysis of six studies comparing PCI outcomes in CE versus NE STEMI patients.
• Analysis of baseline characteristics (TIMI flow, RCA involvement) and primary outcomes (thrombus aspiration, no-reflow, mortality, TIMI-3 flow).
• Calculation of odds ratios (OR) and 95% confidence intervals (CI).

Main Results:

• CE patients showed higher right coronary artery (RCA) involvement (OR 1.39) and greater thrombus aspiration use (OR 2.18).
• Higher incidence of no-reflow (OR 4.07) and lower rates of TIMI-3 flow post-PCI (OR 0.64) were observed in CE patients.
• Pre-procedure TIMI 0-1 flow and follow-up mortality were comparable between CE and NE groups.

Conclusions:

• STEMI patients with CE experience higher rates of PCI failure and no-reflow compared to NE patients.
• Despite procedural complications, long-term mortality following PCI is similar for both groups.
• Comorbidities did not confound the observed outcomes in meta-regression analysis.