Comparison of second- and first-generation drug eluting stent for percutaneous coronary chronic total occlusion intervention.
Int J Cardiol 2015;
206:7-11. [PMID:
26773761 DOI:
10.1016/j.ijcard.2015.12.032]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 12/30/2015] [Indexed: 01/08/2023]
Abstract
BACKGROUND
The performance of contemporary second-generation drug-eluting stents (DESs) for percutaneous chronic total occlusion (CTO) intervention is not well established. The present study compared the efficacy and safety outcomes of second-generation DESs with those of first-generation DESs in CTO-percutaneous coronary intervention (PCI).
METHODS
This retrospective analysis included 1049 consecutive CTO patients who underwent successful DES implantation (first-generation; 487 vs. second-generation; 562 patients) between March 2003 and August 2014. The primary endpoint was the composite of all-cause death, Q-wave myocardial infarction (MI), or target-vessel revascularization (TVR).
RESULTS
During a follow-up of 3 years, the primary endpoint incidence was 10.1% for second- and 7.7% for first-generation DES (p=0.30). After multivariable adjustment, there was no significant difference between these groups in terms of the risk of composite of death, Q-wave MI, or TVR (Hazard ratio [HR] 1.42, 95% confidence interval [CI] 0.88-2.28, p=0.15) nor in the individual risks of death (adjusted HR 1.33, 95% CI 0.69-2.56, p=0.39), Q-wave MI (adjusted HR 1.15, 95% CI 0.30-4.47, p=0.84) and TVR (adjusted HR 1.06, 95% CI 0.52-2.15, p=0.87). The incidence of definite/probable stent thrombosis was relatively low (0.5% vs.0.9%, p=0.17) throughout the follow-up period.
CONCLUSION
The 3-year clinical outcomes of patients treated with second-generation DESs are comparable to those treated with first-generation DESs for CTO-PCI.
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