Dynamic changes in left ventricular function after a percutaneous coronary intervention: prevalence, predictors, and...

Area of Science:

• Cardiology
• Interventional Cardiology
• Echocardiography

Background:

• Left ventricular ejection fraction (LVEF) is a key indicator of cardiac function.
• Percutaneous coronary intervention (PCI) aims to improve coronary blood flow but can impact LVEF.
• Understanding LVEF dynamics post-PCI is crucial for patient management.

Purpose of the Study:

• To determine the prevalence of LVEF changes after elective PCI.
• To identify predictors of these LVEF changes.
• To assess the prognostic significance of LVEF alterations on clinical outcomes.

Main Methods:

• Retrospective analysis of 974 patients undergoing elective PCI.
• Echocardiographic assessment of LVEF before and within one year post-PCI.
• Statistical analysis of hazard ratios for mortality and myocardial infarction based on LVEF categories and changes.

Main Results:

• Lower baseline LVEF was associated with significantly worse survival.
• A decline in LVEF post-PCI increased 1- and 5-year risks of mortality and myocardial infarction.
• LVEF recovery from impaired to preserved status significantly decreased 5-year composite event risk.

Conclusions:

• Significant LVEF changes frequently occur after elective PCI.
• Higher baseline LVEF and LVEF normalization post-PCI are linked to improved patient outcomes.
• Monitoring LVEF post-PCI is essential for risk stratification and management.