Abstract:
AIM:Premature discontinuation of antiplatelet therapy is an independent predictor of late stent thrombosis. We sought to determine the prevalence and predictors of premature discontinuation of antiplatelet therapy after drug-eluting stent implantation among patients in Asia. METHODS:A total of 207 consecutive patients who underwent drug-eluting stent implantation at our institution was followed up after 1 year. Premature discontinuation of antiplatelet therapy was defined as omission of aspirin and/or clopidogrel for 1 week or more. RESULTS:Four (1.9%) patients died and the remaining 203 patients formed the study population. Prevalence of premature discontinuation of antiplatelet therapy was 12.8% (n= 26, aspirin, n= 12; clopidogrel, n= 9; both, n= 5). The median duration between stent implantation and discontinuation of antiplatelet therapy was 2.8 months. Reasons for discontinuation included cost (n= 1), gastric discomfort (n= 1), allergy (n= 3), bleeding (n= 3), advice from doctors (n= 7) and no reason (n= 11). Logistic regression showed that living alone was the only independent predictor of premature discontinuation of dual antiplatelet therapy (50.0% vs 11.3%, P= 0.001). CONCLUSION:Among Asian patients who have undergone drug-eluting stent implantation, 12.8% discontinued dual antiplatelet therapy within 12 months. Living alone is associated with a fivefold increase in risk of premature drug discontinuation.
journal_name
Intern Med Jjournal_title
Internal medicine journalauthors
Poh CL,Chan MY,Lau C,Teo SG,Low AF,Tan HC,Lee CHdoi
10.1111/j.1445-5994.2009.02104.xsubject
Has Abstractpub_date
2011-08-01 00:00:00pages
623-9issue
8eissn
1444-0903issn
1445-5994pii
IMJ2104journal_volume
41pub_type
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