The bare metal stent (BMS) used in the blood vessel caused the restenosis after the operation due to formation and proliferation of neointimal. Recently, as a method to overcome the problems of BMS, drug eluting stent (DES) is developed and being applied to human body which has drug reducing restenosis applied on the metal surface. DES has the advantage of greatly reducing the restenosis after ...

INTRODUCTION Primary infection of a bare metal stent is a rare condition, associated with significant morbidity and mortality. Definitive treatment includes stent removal and arterial reconstruction. REPORT This study details a common iliac stent infection after re-intervention for iliac stent occlusion, complicated by pseudoaneurysm formation and septic embolisation. Potential risk factors f...

Very late thrombosis in an implanted bare-metal stent is a very uncommon event outside the context of brachytherapy and few data about its pathophysiology are available. We performed an intravascular ultrasound study during primary angioplasty in five patients with very late bare-metal stent thrombosis and carried out a histological analysis of the material removed by manual thrombectomy. The m...

Recently, endoscopic ultrasound (EUS)guided biliary drainage has been introduced as an alternative method after failed endoscopic biliary drainage, particularly in patients with a pre-existing duodenal obstruction [1–3]. A longer self-expandable metal stent (SEMS) is usually used for EUS-guided hepaticogastrostomy (EUS-HGS) to prevent stent migration. However, re-intervention after EUS-HGS is c...

Self-expandable metal stents are often used to treat obstructive large bowel cancers. This study assessed the safety and efficacy of colonic stent insertion carried out in a district general hospital. Methods A retrospective review was carried out between 1 January 2007 and 28 February 2014 to identify patients who underwent stent insertion for malignant colorectal obstruction. Results Seventy-...

BACKGROUND The objective was to evaluate the role of risk factors and stent type for stent thrombosis (ST) using a large real world registry. METHODS AND RESULTS We evaluated all consecutive coronary stent implantations in Sweden from May 1, 2005, to June 30, 2007. All cases of ST, documented in the Swedish coronary angiography and angioplasty registry until September 21, 2008, were analyzed....

A 56-year-old male with metastatic unresectable cholangiocarcinoma presented to our clinic with worsening nausea and vomiting. Prior to presentation, the patient underwent placement of a palliative metal biliary stent and an uncovered self-expandable metal stents (UCSEMS) through the pylorus and duodenum for gastric outlet obstruction (GOO) from tumor burden. However, the patient subsequently d...

Very late stent thrombosis is a rare and not-well-understood complication after bare metal stent implantation. It usually presents as an ST elevation acute coronary syndrome and it is associated with high rates of morbidity and mortality. Pathophysiologic mechanisms are not well defined; nevertheless, recent studies have proposed a neoatherosclerotic process as the triggering mechanism. We pres...

BACKGROUND Stents eluting antiproliferative drugs reduce the incidence of restenosis but delay healing of the vascular wall. We assessed the safety and efficacy of catheter-based local delivery of fluid paclitaxel in patients with coronary de novo stenoses after implantation of a bare metal stent. METHODS AND RESULTS We conducted a prospective, randomized trial comparing the local delivery of...

Constitutive law for shape-memory alloys subjected to multi-axial loading, which is based on a semi-micromechanical integrated multi-plane model capable of internal mechanism observations, is generally not available in the literature. The presented numerical results show significant variations in the mechanical response along the multi loading axes. These are attributed to changes in the marten...