Tomohisa Tada1, Robert A Byrne1, Iva Simunovic1, Lamin A King1, Salvatore Cassese1, Michael Joner1, Massimiliano Fusaro1, Simon Schneider2, Stefanie Schulz1, Tareq Ibrahim2, Ilka Ott1, Steffen Massberg3, Karl-Ludwig Laugwitz4, Adnan Kastrati5. 1. Deutsches Herzzentrum, Technische Universität, Munich, Germany. 2. Medizinische Klinik, Klinikum Rechts der Isar, Munich, Germany. 3. Klinikum der Universität München, Munich, Germany; DZHK (German Centre for Cardiovascular Research; partner site Munich Heart Alliance), Munich, Germany. 4. Medizinische Klinik, Klinikum Rechts der Isar, Munich, Germany; DZHK (German Centre for Cardiovascular Research; partner site Munich Heart Alliance), Munich, Germany. 5. Deutsches Herzzentrum, Technische Universität, Munich, Germany; DZHK (German Centre for Cardiovascular Research; partner site Munich Heart Alliance), Munich, Germany. Electronic address: kastrati@dhm.mhn.de.
Abstract
OBJECTIVES: This study sought to compare the risk of stent thrombosis among patients treated with bare-metal stents (BMS), first-generation drug-eluting stents (G1-DES), and second-generation drug-eluting stents (G2-DES) for a period of 3 years. BACKGROUND: In patients undergoing coronary stenting, there is a scarcity of long-term follow-up data on cohorts large enough to compare rates of stent thrombosis across the stent generations. METHODS: A total of 18,334 patients undergoing successful coronary stent implantation from 1998 to 2011 at 2 centers in Munich, Germany, were included in this study. Patients were stratified into 3 groups according to treatment with BMS, G1-DES, and G2-DES. RESULTS: The cumulative incidence of definite stent thrombosis at 3 years was 1.5% with BMS, 2.2% with G1-DES, and 1.0% with G2-DES. On multivariate analysis, G1-DES compared with BMS showed a significantly higher risk of stent thrombosis (odds ratio [OR]: 2.05; 95% confidence interval [CI]: 1.47 to 2.86; p < 0.001). G2-DES were associated with a similar risk of stent thrombosis compared with BMS (OR: 0.82; 95% CI: 0.56 to 1.19; p = 0.30). Beyond 1 year, the risk of stent thrombosis was significantly increased with G1-DES compared with BMS (OR: 4.72; 95% CI: 2.01 to 11.1; p < 0.001), but not with G2-DES compared with BMS (OR: 1.01; 95% CI: 0.32 to 3.25; p = 0.98). CONCLUSIONS: In a large cohort of unselected patients undergoing coronary stenting, compared with BMS, there was a significant excess risk of stent thrombosis at 3 years with G1-DES, driven by an increased risk of stent thrombosis events beyond 1 year. G2-DES were associated with a similar risk of stent thrombosis compared with BMS.
OBJECTIVES: This study sought to compare the risk of stent thrombosis among patients treated with bare-metal stents (BMS), first-generation drug-eluting stents (G1-DES), and second-generation drug-eluting stents (G2-DES) for a period of 3 years. BACKGROUND: In patients undergoing coronary stenting, there is a scarcity of long-term follow-up data on cohorts large enough to compare rates of stent thrombosis across the stent generations. METHODS: A total of 18,334 patients undergoing successful coronary stent implantation from 1998 to 2011 at 2 centers in Munich, Germany, were included in this study. Patients were stratified into 3 groups according to treatment with BMS, G1-DES, and G2-DES. RESULTS: The cumulative incidence of definite stent thrombosis at 3 years was 1.5% with BMS, 2.2% with G1-DES, and 1.0% with G2-DES. On multivariate analysis, G1-DES compared with BMS showed a significantly higher risk of stent thrombosis (odds ratio [OR]: 2.05; 95% confidence interval [CI]: 1.47 to 2.86; p < 0.001). G2-DES were associated with a similar risk of stent thrombosis compared with BMS (OR: 0.82; 95% CI: 0.56 to 1.19; p = 0.30). Beyond 1 year, the risk of stent thrombosis was significantly increased with G1-DES compared with BMS (OR: 4.72; 95% CI: 2.01 to 11.1; p < 0.001), but not with G2-DES compared with BMS (OR: 1.01; 95% CI: 0.32 to 3.25; p = 0.98). CONCLUSIONS: In a large cohort of unselected patients undergoing coronary stenting, compared with BMS, there was a significant excess risk of stent thrombosis at 3 years with G1-DES, driven by an increased risk of stent thrombosis events beyond 1 year. G2-DES were associated with a similar risk of stent thrombosis compared with BMS.
Authors: Salvatore Cassese; Sebastian Kufner; Erion Xhepa; Robert A Byrne; Johanna Kreutzer; Tareq Ibrahim; Klaus Tiroch; Marco Valgimigli; Ralph Tölg; Massimiliano Fusaro; Heribert Schunkert; Karl-Ludwig Laugwitz; Julinda Mehilli; Adnan Kastrati Journal: Clin Res Cardiol Date: 2015-12-22 Impact factor: 5.460