Comparison of Dual Versus Triple Antiplatelet Therapy After Drug-Eluting Stent According to Stent Length (from the Pooled Analysis of DECLARE Trials).

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Comparison of Dual Versus Triple Antiplatelet Therapy After Drug-Eluting Stent According to Stent Length (from the Pooled Analysis of DECLARE Trials).

Am J Cardiol. 2013 Sep 21;

Authors: Lee SW, Lee JY, Ahn JM, Park DW, Han S, Park YK, Lee WS, Jang JY, Kwon CH, Park GM, Cho YR, Kim WJ, Kang SJ, Kim YH, Lee CW, Kim JJ, Park SW, Park SJ

Abstract
There are no practical criteria for the use of triple antiplatelet therapy after drug-eluting stent (DES) implantation. In our present report, pooled analysis of 3 randomized studies in patients with diabetes mellitus (Drug-Eluting Stenting Followed by Cilostazol treatment reduces LAte Restenosis in patients with diabetes mellitus trial) and long coronary narrowings (Drug-Eluting Stenting Followed by Cilostazol Treatment Reduces Late Restenosis in Patients with Long Coronary Lesions trials I and II) compared triple (aspirin, clopidogrel, and cilostazol; triple group, n = 700) and dual antiplatelet therapies (aspirin and clopidogrel; dual group, n = 699) after DES implantation. Among pooled population (n = 1,399 patients), 1,173 patients with follow-up angiography were divided into 3 stent length categories (≤20, 20 to 40, and >40 mm). There was no statistical significance of in-stent restenosis (ISR) in ≤20- and 20- to 40-mm categories between 2 groups. However, ISR rate was significantly reduced in triple versus dual group in >40-mm stent length category (12.4% vs 22.1%, p = 0.008). In diabetic patients, triple group also showed significant reduction in the ISR rate in >40-mm stent length category (15.4% vs 32.3%, p = 0.003). According to postprocedural minimal lumen diameter, triple group showed a trend toward a lower ISR than that of the dual group in all categories (p = 0.033 for ≤2.5 mm, p = 0.087 for 2.5 to 3.0 mm, and p = 0.119 for >3.0 mm). In conclusion, the triple group had a significantly reduced ISR in patients with >40-mm stent length after DES implantation compared with the dual group. Therefore, this suggestion for use of triple antiplatelet therapy could be easily applied after DES implantation in routine clinical practice.

PMID: 24063835 [PubMed - as supplied by publisher]

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