Abstract:
BACKGROUND:Recently, stent fracture (SF) of sirolimus-eluting stents (SES) has been shown to be associated with an increased risk of in-stent restenosis. We sought to evaluate the incidence, predictors and clinical outcome of SF after SES implantation in comparable unselected lesions. METHODS:A total of 430 lesions of 382 patients treated with SES were analyzed. SF was defined as single or multiple stent strut fracture as well as complete separation of stent segments. RESULTS:At follow-up, SF was identified in 33 of 430 lesions (7.7%). In lesions with SF, the in-stent restenosis was observed more frequently than non-SF lesions (15.2% vs. 4.0%, P=0.004). At 450 days, however, the cumulative rate of major cardiac events was not significantly different between lesions with and without SF (9.1% vs. 7.1%, P=0.722). The risk of SF was independently associated with total stent length (OR 2.22; 95% CI, 1.25 to 3.95; P=0.007), the change in the angulation of the lesion after stenting (OR 1.55; 95% CI, 1.07 to 2.25; P=0.020), and the right coronary artery lesions (OR 3.26; 95% CI, 1.18 to 8.96; P=0.022). CONCLUSIONS:The occurrence of SF after SES implantation, was found to be relatively common in the particular population, however, did not lead to an increased risk of adverse cardiac events at 450 days, despite a higher incidence of in-stent restenosis.
journal_name
Int J Cardioljournal_title
International journal of cardiologyauthors
Umeda H,Gochi T,Iwase M,Izawa H,Shimizu T,Ishiki R,Inagaki H,Toyama J,Yokota M,Murohara Tdoi
10.1016/j.ijcard.2007.12.067subject
Has Abstractpub_date
2009-04-17 00:00:00pages
321-6issue
3eissn
0167-5273issn
1874-1754pii
S0167-5273(08)00122-8journal_volume
133pub_type
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journal_title:International journal of cardiology
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journal_title:International journal of cardiology
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