2004
DOI: 10.1161/01.cir.0000121327.67756.19
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Contribution of Stent Underexpansion to Recurrence After Sirolimus-Eluting Stent Implantation for In-Stent Restenosis

Abstract: Background-We used intravascular ultrasound (IVUS) to evaluate recurrence after sirolimus-eluting stent (SES) implantation treatment of in-stent restenosis (ISR). Methods and Results-Forty-eight ISR lesions (41 patients with objective evidence of ischemia) were treated with SES.Recurrent ISR was identified in 11 lesions (all focal); repeat revascularization was performed in 10.

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Cited by 275 publications
(159 citation statements)
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“…Postdilatation using a high-pressure balloon is known as the standard deployment technique of contemporary metallic stents because the risk of TVR and ST is related to the final stent dimensions as guided by IVUS [31,32]. Metallic stents have a stable structure that is able to provide reliable and compliant expansion of the struts without the risk of disruption; however, BRS with polymeric materials has raised concerns www.cardiologyjournal.org regarding over-expansion, disruption, and the effect of postdilatation following its implantation [27,33].…”
Section: Discussionmentioning
confidence: 99%
“…Postdilatation using a high-pressure balloon is known as the standard deployment technique of contemporary metallic stents because the risk of TVR and ST is related to the final stent dimensions as guided by IVUS [31,32]. Metallic stents have a stable structure that is able to provide reliable and compliant expansion of the struts without the risk of disruption; however, BRS with polymeric materials has raised concerns www.cardiologyjournal.org regarding over-expansion, disruption, and the effect of postdilatation following its implantation [27,33].…”
Section: Discussionmentioning
confidence: 99%
“…Several factors determine an inhomogeneous drug distribution promoting the ISR process: vessel and lesion characteristics (a tortuous segment, a calcified vessel, a different caliber of the vessel segment or bifurcation lesions), possible stent struts fractures and finally stent underexpansion (33).…”
Section: Lesion and Procedural-related Factorsmentioning
confidence: 99%
“…40 Coronary calcification may cause DES underexpansion, which is a risk for restenosis after PCI, even with DES. 41 Damage to the polymer of the DES might occur while it is being delivered through a calcified coronary artery in dialysis patients. 42,43 The inhibitory effects of sirolimus on neointimal growth in dialysis patients may be insufficient to prevent restenosis.…”
Section: Pathogenesismentioning
confidence: 99%