Complete fracture of sirolimus-eluting stent detected by multislice computed tomography

Zaizen, Hirofumi; Tamura, Akira; Miyamoto, Kumie; Nakaishi, Toru; Kadota, Jun‐ichi

doi:10.1016/j.ijcard.2006.06.030

Cited by 11 publications

(9 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The recent literature contains a growing number of reports of the fractures of DESs (predominantly, SESs) 261–268. Determination of the best method for visualizing DES fracture and gaining fundamental understanding of the causes of fracture of DESs in general, from the fluid dynamics and solid mechanics perspectives, are two future research areas.…”

Section: Areas/topics For Future Studymentioning

confidence: 99%

“…The recent literature contains a growing number of reports of the fractures of DESs (predominantly, SESs). [261][262][263][264][265][266][267][268] Determination of the best method for visualizing DES fracture and gaining fundamental understanding of the causes of fracture of DESs in general, from the fluid dynamics and solid mechanics perspectives, are two future research areas. In this regard, the suggestion that the higher frequency of fractures in SESs compared to PESs may be related to the higher shear forces in the struts of an SES that are needed to maintain smaller inter-strut angles and a more regular strut distribution 268 should be investigated.…”

Section: Failure Analysis Of Stentsmentioning

confidence: 99%

See 1 more Smart Citation

Materials, fluid dynamics, and solid mechanics aspects of coronary artery stents: A state‐of‐the‐art review

Lewis

2008

J Biomed Mater Res

View full text Add to dashboard Cite

It is well known that, across all populations (based on geographic location, race, ethnicity, age, and sex), coronary artery disease (CAD) is the single most common cause of death. The commonly performed revascularization procedures for the treatment of symptomatic CAD are percutaneous transluminal coronary angioplasty (PTCA) by itself or followed by the deployment of either a bare-metal stent (BMS) or a drug-eluting stent (DES). In the latter type, a drug that is either embedded in polymeric or nonpolymeric coating(s) on the stent surface or directly attached to the stent surface elutes into the blood stream at a controlled rate over a period of time, typically 14-30 days. Over the years, there has been a steady decline in the use of PTCA and a concomitant sharp increase in the use of stents, with DESs being the predominant choice in the last 3 years. The present contribution represents a critical review of the literature on the materials, fluid dynamics, and solid mechanics aspects of both BMSs and DESs, with special reference to in-stent restenosis and in-stent thrombosis, these being risks that present commonly.

show abstract

Section: Areas/topics For Future Studymentioning

confidence: 99%

Section: Failure Analysis Of Stentsmentioning

confidence: 99%

Materials, fluid dynamics, and solid mechanics aspects of coronary artery stents: A state‐of‐the‐art review

Lewis

2008

J Biomed Mater Res

View full text Add to dashboard Cite

show abstract

“…In addition, an increasing number of stent fractures follow-ing DES implantations have been reported recently. [5][6][7][8][9][10][11][12][13] SESs, a DES with a rigid and inflexible platform, are closely associated with stent fractures. This new phenomenon is not a negligible issue since it may play a major role in the mechanism of restenosis after SES implantation.…”

mentioning

confidence: 99%

Late Multiple Stent Fractures Following Deployment of Sirolimus-Eluting Stents for Diffuse Right Coronary Artery Stenosis

et al. 2007

View full text Add to dashboard Cite

SUMMARYWe report a case of late multiple stent fractures following the deployment of sirolimus-eluting stents (SESs) for diffuse right coronary artery (RCA) stenosis. A 44-year-old male with hyperlipidemia was referred to our hospital for acute myocardial infarction (AMI). Percutaneous coronary intervention (PCI) was performed for total occlusion of the proximal segment of the RCA, and 5 SESs were consecutively implanted for long, diffuse stenotic lesions. A follow-up coronary angiography (CAG) performed 8 months later revealed strut fractures in the middle of all the stents, except the most proximal one. Multislice computed tomography confirmed the locations of the fractured struts inside of the stents. (Int Heart J 2007; 48: 767-772) Key words: Percutaneous coronary intervention, Drug-eluting stent, Stent strut fracture, Intravascular ultrasound, Multislice computed tomography DRUG-eluting stents (DESs) have been used to address in-stent restenosis, a problem that has been plaguing coronary stenting for the past decade. DES implantations have dramatically reduced the incidence of in-stent restenosis, and a number of studies have shown better clinical outcomes following DES implantation when compared with bare-metal stent (BMS) implantation.1-2) However, instent restenosis continues to occur after DES implantation in some cases, and its occurrence has been greatly responsible for limiting a patient's quality of life following percutaneous coronary intervention (PCI). Regarding sirolimus-eluting stents (SESs), previous trials have failed to show their advantage in preventing in-stent or peri-stent restenosis, particularly in patients with end-stage renal disease or insulin-dependent diabetes.3-4) Thus, the problem of in-stent restenosis remains unresolved. In addition, an increasing number of stent fractures followFrom the

show abstract

“…Stent fractures are widely thought to be caused by metal fatigue due to mechanical forces and shearing stress on the stent. Some of the factors that could lead to stent fatigue include the following: a hinge motion of the vessel with beating, extreme vessel curvature and movement, implantation of a long stent in tortuous or calcified vessels, and overexpansion of the stent [3][4][5][6][7][8]. In this case report, we describe a rare case of SES restenosis in association with stent fracture in an ostial lesion of the right coronary artery within 2 months of stent placement.…”

Section: Discussionmentioning

confidence: 99%

Fracture of a sirolimus-eluting stent with migration

Kamura

Kawasaki

Koga

et al. 2008

International Journal of Cardiology

View full text Add to dashboard Cite

Complete fracture of sirolimus-eluting stent detected by multislice computed tomography

Cited by 11 publications

References 4 publications

Materials, fluid dynamics, and solid mechanics aspects of coronary artery stents: A state‐of‐the‐art review

Materials, fluid dynamics, and solid mechanics aspects of coronary artery stents: A state‐of‐the‐art review

Late Multiple Stent Fractures Following Deployment of Sirolimus-Eluting Stents for Diffuse Right Coronary Artery Stenosis

Fracture of a sirolimus-eluting stent with migration

Contact Info

Product

Resources

About