Stent thrombosis after drug-eluting stent implantation: incidence, timing, and relation to discontinuation of clopidogrel therapy over a 4-year period.

Schulz, S; Schuster, T; Mehilli, J; Byrne, RA; Ellert, J; Massberg, S; Goedel, J; Bruskina, O; Ulm, K; Schömig, A; Kastrati, A

doi:10.1093/eurheartj/ehp275

2009

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Titel:: Stent thrombosis after drug-eluting stent implantation: incidence, timing, and relation to discontinuation of clopidogrel therapy over a 4-year period.
Dokumenttyp:: Journal Article; Article
Autor(en):: Schulz, S; Schuster, T; Mehilli, J; Byrne, RA; Ellert, J; Massberg, S; Goedel, J; Bruskina, O; Ulm, K; Schömig, A; Kastrati, A
Abstract:: AIMS: To assess the incidence, timing, and relation of drug-eluting stent (DES) thrombosis to discontinuation of clopidogrel therapy. METHODS AND RESULTS: This prospective observational cohort study included 6816 consecutive patients that underwent successful DES implantation. Primary endpoint was definite stent thrombosis (ST). During 4 years of follow-up, definite ST was observed in 73 patients, corresponding to a cumulative incidence of 1.2%. Cumulative incidence of ST at 30 days was 0.5 and 0.8% at 1 year, respectively. Discontinuation of clopidogrel therapy was significantly associated with ST only in the first 6 months after the procedure (P < 0.001). During that period, the median time interval from clopidogrel discontinuation to ST was 9 days [interquartile range (IQR) 5.5-22.5] while thereafter it was 104.3 days (IQR 7.4-294.8). CONCLUSION: The 4 year incidence of ST after DES implantation is low. A relevant number of ST occur early after discontinuation of clopidogrel therapy. The dependence of ST on discontinuation of clopidogrel therapy seems to be mostly confined to the first 6 months after DES implantation. However, specifically designed randomized studies are required to establish the optimal length of clopidogrel therapy after DES implantation.
Zeitschriftentitel:: Eur Heart J
Jahr:: 2009
Band / Volume:: 30
Heft / Issue:: 22
Seitenangaben Beitrag:: 2714-21
Sprache:: eng
Volltext / DOI:: doi:10.1093/eurheartj/ehp275
PubMed:: http://view.ncbi.nlm.nih.gov/pubmed/19596658
Print-ISSN:: 0195-668X
TUM Einrichtung:: I. Medizinische Klinik und Poliklinik (Kardiologie); Institut für Medizinische Statistik und Epidemiologie
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