Outcomes of Guideline-Recommended Percutaneous Coronary Intervention in Women with Obstructive Coronary Artery Disease: A Longitudinal Cohort Study.

Abstract

Background: Previous studies have shown that women with coronary artery disease (CAD) are less likely to undergo angiography and have less favorable outcomes after percutaneous coronary intervention (PCI).

Objectives: Assess the outcomes of women with acute coronary syndrome (ACS) and stable CAD (lesion>50%) treated with contemporary PCI using DES.

Methods: Observational, longitudinal cohort study with prospective follow-up included all female patients ≥ 18 years admitted at a tertiary public cardiovascular center in Brazil from January 2019 to December 2020. The level of significance adopted in the statistical analysis was 5%.

Results: 1146 women (average age 65 years) underwent guideline-recommended PCI. Risk factors were frequent (hypertension: 88%, dyslipidemia: 85%, diabetes: 47.5%), and 69% were admitted due to ACS. Radial access was used in 59% of patients; 1516 vessels were treated with 1725 stents implanted (1.5 stents/patient). PCI was successful in 97.7%, in-hospital death occurred in 1.2%, peri-procedural MI in 3.6%, and TIA in 0.4%. Predictors of in-hospital major adverse cardiac and cerebrovascular events (MACCE): previous stroke (OR: 2.97; CI: 1.06-7.15; p= 0.023), CKD (OR: 3.11; CI: 1.49-6.20; p= 0.002), and at least one procedural failure during PCI (OR: 10.2; CI: 1.17-5.9; p<0.001). The average follow-up was 576.2 days in 1047 patients. All-cause mortality occurred in 5.3%, cardiac death in 3.5%, recurrent ACS in 8%, and additional revascularization procedures in 5.5%. The predictors for MACCE during FU were hospital admission for ACS for the index PCI (OR: 1.58; HR: 1.06-2.35; p=0.023) and the presence of MACCE during hospitalization (OR: 6.66; HR: 2.42- 18.3; p< 0.001).

Conclusion: In this pioneering study involving 1146 patients treated by contemporary PCI and followed for almost 2 years, we obtained very encouraging in-hospital and mid-term results.