Journal
CIRCULATION
Volume 133, Issue 19, Pages 1878-1891Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/CIRCULATIONAHA.115.020955
Keywords
age groups; coronary artery bypass; coronary artery disease; percutaneous coronary intervention; sex
Funding
- Research Institute for Production Development (Kyoto, Japan)
- Pharmaceuticals and Medical Devices Agency (PMDA) in Japan
- Grants-in-Aid for Scientific Research [25293182] Funding Source: KAKEN
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Background Age and sex are important considerations in the choice between percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) in daily clinical practice. Methods and Results Of 25816 patients enrolled in the multicenter Coronary Revascularization Demonstrating Outcome Study in Kyoto (CREDO-Kyoto; Cohort-1, n=9877; Cohort-2, n=15939), the present study population consisted of 5651 patients (men, n=3998; women, n=1653) with triple-vessel coronary artery disease who were considered to be pertinent in comparisons of PCI with CABG (PCI, n=3165; CABG, n=2486). Patients were divided into 3 groups according to the tertiles of age: 65 years (n=1972), 66 to 73 years (n=1820), and 74 years (n=1859). The excess adjusted mortality risk of PCI relative to CABG was significant in patients 74 years of age (hazard ratio [HR], 1.40; 95% confidence interval [CI], 1.10-1.79; P=0.006), whereas the risks were neutral in patients 65 years of age (HR, 1.05; 95% CI, 0.73-1.53; P=0.78) and in patients 66 to 73 years of age (HR, 1.03; 95% CI, 0.78-1.36; P=0.85; interaction P=0.003). The excess mortality risk of PCI relative to CABG was significant in men (HR, 1.24; 95% CI, 1.03-1.50; P=0.02) and trended to be significant in women (HR, 1.34; 95% CI, 0.98-1.84; P=0.07) without significant interaction between sex and the mortality risk of PCI relative to CABG (interaction P=0.40). Conclusions There was a significant association between age and the mortality risk of PCI relative to CABG with excess risk in patients 74 years of age and neutral risk in younger patients. There was no significant sex-related difference in the mortality risk of PCI relative to CABG.
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