Background: Bleeding after percutaneous coronary intervention (PCI) is identified as a strong predictor for adverse events, including mortality. This study aims to compare the incidence and correlates of post-PCI bleeding across different clinical presentations.
Methods: The study included 23,943 consecutive PCI patients categorized according to their clinical presentation: stable angina pectoris (n = 6,741), unstable angina pectoris (UAP) (n = 5,215), non-ST-segment elevation myocardial infarction (NSTEMI) (n = 8,418), ST-segment elevation myocardial infarction (STEMI) (n = 2,721), and cardiogenic shock (CGS) (n = 848).
Results: Severity of clinical presentation was associated with a greater use of preprocedural anticoagulation, glycoprotein IIb/IIIa inhibitors, and intraaortic balloon pump (IABP). TIMI-defined major bleeding increased with increasing severity of clinical presentation: stable angina pectoris, 0.7%; UAP, 1.0%; NSTEMI, 1.6%; STEMI, 4.6%; and CGS, 13.5% (P < .001). On multivariable analysis, CGS (odds ratio [OR], 4.67; 95% CI [2.62-8.34]), STEMI (OR, 3.39; 95% CI [2.07-5.55]), and NSTEMI (OR, 2.00; 95% CI [1.29-3.10]) remained correlated with major bleeding even after adjusting for baseline and procedural differences, whereas UAP did not. The multivariable model also identified the use of IABP, female gender, congestive heart failure, no prior PCI, increased baseline hematocrit, and increased procedure time as correlates for major bleeding.
Conclusions: In patients undergoing PCI, the worsening severity of clinical presentation corresponds to an increase in incidence of post-PCI major bleeding. The increased risk with CGS, STEMI, and NSTEMI persisted despite adjusting for more aggressive pharmacotherapy and use of IABP. Careful attention to antithrombotic pharmacotherapy is warranted in this high-risk population.
Copyright © 2014 Mosby, Inc. All rights reserved.