期刊
AMERICAN HEART JOURNAL
卷 264, 期 -, 页码 72-82出版社
MOSBY-ELSEVIER
DOI: 10.1016/j.ahj.2023.05.021
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This study aims to analyze the relationship between total stent length (TSL) and 10-year target-lesion failure (TLF) in patients with ST-elevation myocardial infarction (STEMI) treated with percutaneous coronary intervention. The results show that there is a direct relationship between TSL and the risk of TLF at 10 years, mainly driven by target lesion revascularization (TLR).
Background Little data exist on the relationship between total stent length (TSL) and cardiovascular outcomes at very-long follow-up in patients with ST-elevation myocardial infarction (STEMI) in the 2nd generation drug-eluting stents (DES) era. Aim To analyze the relationship between TSL and 10-year target-lesion failure (TLF) in STEMI patients treated with percu-taneous coronary intervention enrolled in the EXAMINATION-EXTEND. Methods The EXAMINATION-EXTEND was an extended-follow-up study of the EXAMINATION trial, which randomized 1:1 STEMI patients to receive DES or bare metal stent (BMS). The primary endpoint was TLF, defined as a composite of target lesion revascularization (TLR), target vessel myocardial infarction (TVMI), or definite/probable stent thrombosis (ST). Relationship between stent length and TLF was evaluated in the whole study group in a multiple-adjusted Cox regression model with TSL as a quantitative variable. Subgroup analysis was also performed according to stent type, diameter, and overlap. Results A total of 1,489 patients with a median TSL of 23 mm (Q1-Q318-35 mm) were included. TSL was associated with TLF at 10 years (adjusted HR per 5 mm increase of 1.07; 95% CI, 1.01-1.14; P = .02). This effect was mainly driven by TLR and was consistent regardless of stent type, diameter, or overlap. There was no significant relationship between TSL and TV-MI or ST. Conclusions In STEMI patients, there is a direct relationship between TSL implanted in the culprit vessel and the risk of TLF at 10 years, mainly driven by TLR. The use of DES did not modify this association. (Am Heart J 2023;264:72-82.)
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