JACC. Asia · 2021
Stent-Related Adverse Events as Related to Dual Antiplatelet Therapy in First- vs Second-Generation Drug-Eluting Stents.
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Yoshikawa Yusuke, Shiomi Hiroki, Morimoto Takeshi, Takeji Yasuaki, Matsumura-Nakano Yukiko, Yamamoto Ko, Yamamoto Erika, Kato Eri T, Watanabe Hirotoshi, Saito Naritatsu, Domei Takenori, Tada Takeshi, Nawada Ryuzo, Onodera Tomoya, Suwa Satoru, Tamura Toshihiro, Ishii Katsuhisa, Ando Kenji, Furukawa Yutaka, Kadota Kazushige, Nakagawa Yoshihisa, Kimura Takeshi, CREDO-Kyoto PCI/CABG Registry Cohort-2 and Cohort-3 Investigators
Аннотация
BACKGROUND: There are limited data on the long-term stent-related adverse events as related to the duration of dual antiplatelet therapy (DAPT) in second-generation (G2) drug-eluting stents (DES) compared with first-generation (G1) DES.
OBJECTIVES: This study sought to compare the long-term stent-related outcomes of G2-DES with those of G1-DES.
METHODS: The study group consisted of 15,009 patients who underwent their first coronary revascularization with DES from the CREDO-Kyoto PCI/CABG (Coronary Revascularization Demonstrating Outcome Study in Kyoto Percutaneous Coronary Intervention/Coronary Artery Bypass Grafting) Registry Cohort-2 (first-generation drug-eluting stent [G1-DES] period; n = 5,382) and Cohort-3 (second-generation drug eluting stent [G2-DES] period; n = 9,627). The primary outcome measures were definite stent thrombosis (ST) and target vessel revascularization (TVR).
RESULTS: The cumulative 5-year incidences of definite ST and TVR were significantly lower in the G2-DES group than in the G1-DES group (0.7% vs 1.4%; P < 0.001; and 16.2% vs 22.1%; P < 0.001, respectively). The lower adjusted risk of G2-DES relative to G1-DES for definite ST and TVR remained significant (HR: 0.53; 95% CI: 0.37-0.76; P < 0.001; and HR: 0.74; 95% CI: 0.68-0.81; P < 0.001, respectively). In the landmark analysis that was based on the DAPT status at 1 year, the lower adjusted risk of on-DAPT status relative to off-DAPT was significant for definite ST beyond 1 year in the G1-DES stratum (HR: 0.42; 95% CI: 0.24-0.76; P = 0.004) but not in the G2-DES stratum (HR: 0.66; 95% CI: 0.26-1.68; P = 0.38) (P interaction = 0.14).
CONCLUSIONS: G2-DES compared with G1-DES were associated with a significantly lower risk for stent-related adverse events, including definite ST and TVR. DAPT beyond 1 year was associated with a significantly lower risk for very late ST of G1-DES but not for that of G2-DES.
OBJECTIVES: This study sought to compare the long-term stent-related outcomes of G2-DES with those of G1-DES.
METHODS: The study group consisted of 15,009 patients who underwent their first coronary revascularization with DES from the CREDO-Kyoto PCI/CABG (Coronary Revascularization Demonstrating Outcome Study in Kyoto Percutaneous Coronary Intervention/Coronary Artery Bypass Grafting) Registry Cohort-2 (first-generation drug-eluting stent [G1-DES] period; n = 5,382) and Cohort-3 (second-generation drug eluting stent [G2-DES] period; n = 9,627). The primary outcome measures were definite stent thrombosis (ST) and target vessel revascularization (TVR).
RESULTS: The cumulative 5-year incidences of definite ST and TVR were significantly lower in the G2-DES group than in the G1-DES group (0.7% vs 1.4%; P < 0.001; and 16.2% vs 22.1%; P < 0.001, respectively). The lower adjusted risk of G2-DES relative to G1-DES for definite ST and TVR remained significant (HR: 0.53; 95% CI: 0.37-0.76; P < 0.001; and HR: 0.74; 95% CI: 0.68-0.81; P < 0.001, respectively). In the landmark analysis that was based on the DAPT status at 1 year, the lower adjusted risk of on-DAPT status relative to off-DAPT was significant for definite ST beyond 1 year in the G1-DES stratum (HR: 0.42; 95% CI: 0.24-0.76; P = 0.004) but not in the G2-DES stratum (HR: 0.66; 95% CI: 0.26-1.68; P = 0.38) (P interaction = 0.14).
CONCLUSIONS: G2-DES compared with G1-DES were associated with a significantly lower risk for stent-related adverse events, including definite ST and TVR. DAPT beyond 1 year was associated with a significantly lower risk for very late ST of G1-DES but not for that of G2-DES.