Up to 80% of all endovascular stents have malapposed struts, and while some impose catastrophic events others are inconsequential. Thirteen stents were implanted in coronary arteries of seven healthy Yorkshire pigs, using specially-designed cuffed balloons inducing controlled stent malapposition and under-expansion. Optical coherence tomography (OCT) imaging confirmed that 25% of struts were malapposed (strut-wall distance

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4893976PMC
http://dx.doi.org/10.1007/s10439-015-1518-xDOI Listing

Publication Analysis

Top Keywords

stent malapposition
8
malapposition under-expansion
8
vascular response
4
response experimental
4
experimental stent
4
under-expansion 80%
4
80% endovascular
4
endovascular stents
4
stents malapposed
4
malapposed struts
4

Similar Publications

Rotablator-associated coronary perforation can be fatal if bailout is delayed. Successful bailout is typically defined as the disappearance of contrast extravasation after a haemostatic intervention. We report a case of recurrent cardiac tamponade in the subacute phase, wherein haemostasis appeared to have been achieved on angiography following the implantation of a covered stent during the index procedure.

View Article and Find Full Text PDF

Introduction:Few studies have evaluated different patterns of in-stent restenosis by optical coherence tomography (OCT). This study aims to identify in vivo predictors for focal restenosis in patients with in-stent restenosis (ISR). Methods: The study recruited patients with ISR who underwent OCT examination in the Cardiology Department of the Affiliated Hospital of Zunyi Medical University from October 2018 to December 2022.

View Article and Find Full Text PDF

Background: Elective unprotected left main (ULM) percutaneous coronary intervention (PCI) has long-term mortality rates comparable to surgical revascularization, thanks to advances in drug-eluting stent (DES) design, improved PCI techniques, and frequent use of intravascular imaging. However, urgent PCI of ULM culprit lesions remains associated with high in-hospital mortality and unfavourable long-term outcomes, including DES restenosis and stent thrombosis (ST). This analysis aimed to examine the long-term outcomes and healing of DES implanted in ULM during primary PCI using high-resolution optical coherence tomography (OCT) imaging.

View Article and Find Full Text PDF

Objective: This study aimed to compare the efficacy and safety of intravascular ultrasound (IVUS)-guided coronary intravascular lithotripsy and rotational atherectomy in treating severe coronary artery calcification.

Methods: A retrospective analysis of 60 patients who underwent percutaneous coronary intervention at the General Hospital of Ningxia Medical University from October 2022 to August 2023 was conducted. The patients were divided into two groups: 30 received IVUS-guided coronary intravascular lithotripsy and 30 underwent IVUS-guided rotational atherectomy.

View Article and Find Full Text PDF

Background: Percutaneous coronary intervention (PCI) using drug-eluting stents is an established strategy for the treatment of significant obstructive coronary artery disease. Evidence supports that intravascular imaging-guided PCI offers advantages over conventional angiography-guided PCI, though its use is limited, likely due to high costs. Angiography-guided PCI relies on visual estimation, leading to inter- and intra-observer variability and suboptimal outcomes.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!