Incidence, predictors, and prognostic implications of bleeding and blood transfusion following percutaneous coronary...

Area of Science:

• Cardiology
• Interventional Cardiology
• Clinical Outcomes Research

Background:

• Bleeding is a frequent complication of percutaneous coronary intervention (PCI).
• Understanding the incidence, predictors, and outcomes of bleeding is crucial for patient management.
• Thrombolysis In Myocardial Infarction (TIMI) criteria are standard for bleeding classification.

Purpose of the Study:

• To investigate the incidence, predictors, and prognostic impact of periprocedural bleeding and transfusion in patients undergoing PCI.
• To identify patient and procedural factors associated with major bleeding.
• To assess the impact of bleeding on in-hospital and long-term mortality.

Main Methods:

• Retrospective analysis of 10,974 patients who underwent PCI.
• Classification of bleeding events into major, minor, and no bleeding based on TIMI criteria and hematocrit changes.
• Multivariate logistic regression to identify predictors of major bleeding.

Main Results:

• Major bleeding occurred in 5.4% of patients, minor bleeding in 12.7%, and no bleeding in 81.9%.
• Patients with major bleeding were older and more likely to experience intraprocedural complications like intra-aortic balloon pump use.
• Strongest predictors for major bleeding included intra-aortic balloon pump use (OR 3.0), procedural hypotension (OR 2.9), and age >80 years (OR 1.9).
• Major bleeding was independently associated with higher in-hospital and 1-year mortality.

Conclusions:

• Periprocedural major bleeding is a common complication of PCI with significant adverse prognostic implications.
• Patients over 80 years old with intraprocedural complications face a particularly high risk of major bleeding.
• Effective risk stratification and management strategies are needed to mitigate bleeding complications and improve outcomes after PCI.