Project description:Percutaneous transluminal coronary angioplasty with metal stent placement has become a well-developed treatment modality for coronary stenotic lesions. Although infection involving implanted stents is rare, it can, however, occur with high morbidity and mortality. We describe herein a case of an inserted coronary stent that was infected and complicated with recurrent stent thrombosis, pseudoaneurysm formation and severe sepsis. Despite repeated intervention and bypass surgery, the patient died from severe sepsis.

| S-EPMC5290029 | biostudies-literature

Successful Long-term Patency of a Complicated Coronary Aneurysm at a Prior Coronary Branch Stent Treated with a Stent Graft and Dedicated Bifurcation Stent.

Project description: Not available

| S-EPMC8176077 | biostudies-literature

Novel retrieving device for coronary stent dislodgement

Project description: Not available

| S-EPMC11605892 | biostudies-literature

Biventricular pacing leading to coronary stent fracture.

Project description: Not available

| S-EPMC3066831 | biostudies-literature

Nanoporous CREG-eluting stent attenuates in-stent neointimal formation in porcine coronary arteries.

Project description:BackgroundThe goal of this study was to evaluate the efficacy of a nanoporous CREG-eluting stent (CREGES) in inhibiting neointimal formation in a porcine coronary model.MethodsIn vitro proliferation assays were performed using isolated human endothelial and smooth muscle cells to investigate the cell-specific pharmacokinetic effects of CREG and sirolimus. We implanted CREGES, control sirolimus-eluting stents (SES) or bare metal stents (BMS) into pig coronary arteries. Histology and immunohistochemistry were performed to assess the efficacy of CREGES in inhibiting neointimal formation.ResultsCREG and sirolimus inhibited in vitro vascular smooth muscle cell proliferation to a similar degree. Interestingly, human endothelial cell proliferation was only significantly inhibited by sirolimus and was increased by CREG. CREGES attenuated neointimal formation after 4 weeks in porcine coronary model compared with BMS. No differences were found in the injury and inflammation scores among the groups. Scanning electron microscopy and CD31 staining by immunohistochemistry demonstrated an accelerated reendothelialization in the CREGES group compared with the SES or BMS control groups.ConclusionsThe current study suggests that CREGES reduces neointimal formation, promotes reendothelialization in porcine coronary stent model.

| S-EPMC3616099 | biostudies-literature

Successful transcatheter stent retrieval after stent dislodgement in the left main coronary artery.

Project description: Not available

| S-EPMC10422688 | biostudies-literature

Whole blood gene expression profiling for coronary in-stent restenosis: A Indian pilot case study.

Project description:Percutaneous coronary intervention (PCI) with stent placement is a standard treatment for coronary artery disease (CAD). Despite all medical advances, restenosis remains a challenging clinical problem. However, the molecular and biochemical pathways of restenotic process are not fully understood yet. Furthermore, as restenosis is assumed to be a multigenetic process and genetic predisposition is considered an important risk factor, analysis of the genome-wide gene expression is recommended for better insight of the phenomenon. We used microarray technology to monitor thousands of genes expression simultaneously. The whole genome expression will be analyzed with this technique to identify cluster of up-regulated and down-regulated genes which may be involved in this complex pathological condition.

2014-04-30 | GSE46560 | GEO

Successful coronary stent implantation using directional coronary atherectomy without side branch occlusion.

Project description:Percutaneous coronary intervention with a drug-eluting stent was successfully performed without a side branch (SB) occlusion. In this case, a directional coronary atherectomy catheter played an important role in modifying the plaque at the proximal left anterior descending artery and in crossing a wire to the jeopardized SB.

| S-EPMC9944041 | biostudies-literature

StentBoost Visualization for the Evaluation of Coronary Stent Expansion During Percutaneous Coronary Interventions.

Project description:IntroductionInadequate stent implantation is associated with stent thrombosis and restenosis. StentBoost can enhance stent visualization and evaluate stent expansion. Currently, there are limited comparison studies between StentBoost and intravascular ultrasound (IVUS). We aimed to test the correlation and agreement between IVUS and StentBoost measurements.MethodsFrom December 2010 to December 2011, 38 patients (54 stents) were analyzed using IVUS and StentBoost. Minimal stent diameter and proximal and distal edge stent diameter were compared between imaging techniques using Pearson correlation and Bland-Altman scatter plot.ResultsThere was good correlation between StentBoost and IVUS measurements regarding minimal stent diameter (p < 0.001 in all stent portions) and an optimal agreement between IVUS and StentBoost, while lesser agreement was found between IVUS and quantitative coronary angiography.ConclusionThe assessment of stent implantation using StentBoost showed an adequate correlation and agreement with IVUS. This easily applicable angiographic technique can be used to guide stent implantation.

| S-EPMC4107427 | biostudies-literature

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