Prognostic Utility of the BCIS-CHIP Score in Imaging-Guided Percutaneous Coronary Intervention

Area of Science:

• Cardiology
• Interventional Cardiology
• Clinical Risk Stratification

Background:

• The British Cardiovascular Intervention Society (BCIS) developed a complex high-risk indicated percutaneous coronary intervention (CHIP) score.
• Its prognostic value is established, but validation in imaging-guided PCI is lacking.
• Imaging-guided PCI shows a favorable prognostic association with CHIP.

Purpose of the Study:

• To investigate the utility of the BCIS-CHIP score in patients undergoing imaging-guided PCI.
• To assess the prognostic value of the BCIS-CHIP score in this specific patient population.

Main Methods:

• A multicenter prospective observational study included 1218 patients undergoing imaging-guided PCI.
• Patients were stratified into four groups based on BCIS-CHIP scores (0, 1-2, 3-4, ≥5).
• The primary endpoint was 1-year major adverse cardiac or cerebrovascular events (MACCE); secondary outcomes included individual MACCE components, target vessel revascularization, and heart failure.

Main Results:

• MACCE incidence at 1 year was 1.8% (score 0), 3.4% (1-2), 7.3% (3-4), and 11.7% (≥5) (p<0.001).
• Patients with scores 3-4 (HR: 4.2) and ≥5 (HR: 7.4) had significantly higher MACCE rates compared to score 0.
• The BCIS-CHIP score demonstrated a clear gradient of risk.

Conclusions:

• The BCIS-CHIP score is a valuable tool for predicting cardiovascular events in patients undergoing imaging-guided PCI.
• It can simplify the risk stratification process for patients with CHIP undergoing this procedure.