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Sex Difference in Chest Pain After Implantation of Newer Generation Coronary Drug-Eluting Stents: A Patient-Level Pooled Analysis From the TWENTE and DUTCH PEERS Trials. | LitMetric
Department of Cardiology, Thoraxcentrum Twente, Medisch Spectrum Twente, Enschede, the Netherlands; Health Technology and Services Research, MIRA, Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, the Netherlands. Electronic address:
Published: March 2016
AI Article Synopsis
Article Abstract
Objectives: This study sought to assess sex differences in chest pain after percutaneous coronary intervention (PCI) with newer generation drug-eluting stents (DES).
Background: Sex-based data on chest pain after PCI with DES are scarce.
Methods: The authors performed a patient-level pooled analysis of the TWENTE and DUTCH PEERS randomized trials, in which patients were treated with newer generation permanent polymer-coated DES. At 1 and 2 years, clinical follow-up was available in 99.8% and patient-reported chest pain data in 94.1% and 93.6%, respectively.
Results: Among all 3,202 patients, the 871 (27.2%) women were older (67.5 ± 10.2 years vs. 62.8 ± 10.6 years; p < 0.001) and had more cardiovascular risk factors: diabetes (24.2% vs. 17.8%; p < 0.001), hypertension (63.6% vs. 51.6%; p < 0.001), and positive family history (54.5% vs. 50.1%; p = 0.03). At 1- and 2-year follow-up, women reported more clinically relevant chest pain (16.3% vs. 10.5%; p < 0.001, and 17.2% vs. 11.1%; p < 0.001, respectively). Multivariate analysis demonstrated that female sex independently predicted clinically relevant chest pain at 1- and 2-year follow-up both during daily activities and at minimum physical exertion/at rest (1 year adjusted odds ratio [OR]: 1.7; 95% confidence interval [CI]: 1.2 to 2.4; p = 0.002; and adjusted OR: 1.8; 95% CI: 1.3 to 2.5; p < 0.001; 2-year adjusted OR: 1.8; 95% CI: 1.3 to 2.6; p < 0.001; and adjusted OR: 1.7; 95% CI: 1.3 to 2.3; p = 0.001). Nevertheless, the 2-year rates of death, myocardial infarction, revascularization, stent thrombosis, and various composite clinical endpoints were similar for both sexes.
Conclusions: Although the incidence of adverse cardiovascular events was low and similar for both sexes, women showed a statistically significantly higher prevalence of clinically relevant chest pain, which might be largely related to mechanisms other than epicardial coronary obstruction.
