Durable polymers used for first-generation drug-eluting stents (DES) potentially contribute to persistent inflammation and late DES thrombosis. The vascular response to the Stellium stent, which is coated with an absorbable polymer for slow release of low-dose paclitaxel, was evaluated in the present study. The 37 patients with stable angina were ...

To describe an operative technique that deepens foreshortened conjunctival fornices by providing a scaffold for epithelialization that opposes contractile forces during wound healing. Retrospective interventional case series. Seventeen patients with anophthalmic sockets containing foreshortened conjunctival fornices. Conjunctival fornices was reconstructed with stents of expanded polytetrafluoroethylene (e-PTFE) sheet draped over rigid, ...

The Resolute stent is a newly developed system with a bio-histocompatible polymer that allows programmed drug delivery up to 180 days. The aim of this intravascular ultrasound (IVUS) analysis was to evaluate the short- (4 months) and mid-term (9 months) efficacy using the Resolute stent. Data were derived from the ...

Percutaneous nephrolithotomy (PCNL) via single inferior-calyceal tract is suitable for some partial staghorn calculi mainly located in the inferior calyx. A ureteral stent should be inserted at the end of PCNL to avoid urine leakage or ureteral obstruction by residual calculi. However, antegrade ureteral stenting via the inferior calyx is ...

The Endurant Stent Graft Natural Selection Global Postmarket Registry (ENGAGE) is a long-term 1200-patient multicenter prospective study initiated to augment the knowledge base (poolable and comparable) about endovascular aortic repair (EVAR) in a real-world population implanted with a single latest-generation stent graft system (Endurant). With enrollment ongoing at 80 high-volume ...

OBJECTIVE: To determine the safety of self expandable metallic stent (SEMS) placement under endoscopic guidance without fluoroscopy. STUDY DESIGN: Quasi experimental study. PLACE AND DURATION OF STUDY: Section of Gastroenterology and Hepatology, Departments of Medicine, Isra University Hospital and Liaquat University of Medical and Health Sciences (LUMHS), Hyderabad, from April ...

PURPOSE: Stent reocclusion and migration are the most important complications after stent insertion. To overcome both problems, a double-layered combination covered stent was developed. Our purpose was to compare the efficacy and safety of the newly designed double-layered combination covered stent (Niti-S enteral colonic stent, Comvi type) and the double-wire ...

Historically, carotid cavernous fistulas (CCFs) are usually treated with detachable balloons and coils. While coronary covered stent grafts have been sporadically used in the intracranial vasculature, only a few such cases have been reported in the literature. We present our experience of seven patients with eight CCFs, treated by the ...

We report the first preliminary study on metal-alloy ureteral stent after long indwelling times. The aim is to analyze by physical-chemical characterization of the stent after use and to evaluate the material performance in this human in vivo case study. Six Resonance metallic stents (Cook Ireland) were inserted in six ...

BACKGROUND AND PURPOSE: Ureteral stent placement after ureteroscopic lithotripsy has some advantages and disadvantages. In this randomized study, the necessity of ureteral stent placement after uncomplicated ureteroscopy for impacted ureteral stones was assessed. MATERIALS AND METHODS: Between 2005 and 2007, 60 evaluable patients were equally randomized to groups with and ...

We studied the possibility of placing a new type of monocanalicular nasal intubation under general anesthesia with spontaneous mask ventilation in congenital nasolacrimal duct obstruction. This was a non-randomized study of consecutive cases using a monocanalicular stent called the "pushed Monoka". The benefits of anchoring with meatus fixation are similar ...

We studied the effect of oral sirolimus, administered to prevent and treat in-stent restenosis (ISR), on the variation of serum levels of inflammatory markers following coronary stenting with bare metal stents. The mean age of the patients was 56 +/- 13 years, 65% were males and all had clinically manifested ...

This study aimed to investigate the efficacy and safety of placing self-expandable metal stents (SEMSs) without fluoroscopy for palliation of malignant esophageal or esophagogastric strictures. From January 2003 to June 2008, a prospective observational study investigated the placement of covered proximal-release Ultraflex stents without fluoroscopy in nonoperable malignant esophageal and ...

Benign biliary strictures are typically managed endoscopically whereby an increasing size or number of plastic stents is placed at ERCP. Stents are often changed every 3 to 4 months based on the known median patency of a single biliary stent, but patency data for multiple biliary stents are lacking. To ...

The long-term natural history of acquired malapposition continues to be the subject of debate. Using volumetric intravascular ultrasound analyses, we evaluated serial (poststenting, 6-month, and 2-year follow-up) changes in drug-eluting stent-treated vascular segments with acquired malapposition. External elastic membrane, stent, lumen, malapposition, and peristent plaque+media (P+M=external elastic membrane -stent- malapposition) ...

To date, evidence to recommend endovascular treatment in patients with intracranial stenoses is lacking. Recently, the introduction of self-expanding stents (Wingspan Stent System) aroused considerable expectations in their employ for stroke prevention. We report a single-center experience of percutaneous transluminal angioplasty and stenting in a series of consecutive patients with ...

PURPOSE: To evaluate the effectiveness of radiologic placement of uncovered stents for the treatment of malignant colorectal obstruction. MATERIALS AND METHODS: From May 2003 to January 2008, 116 radiologic placements of uncovered stents were attempted in 99 patients (M:F, 59:40; mean age, 65 years) with malignant colorectal obstructions. The location ...

The self-expandable metallic stent (SEMS) has been widely used for unresectable malignant biliary obstruction but eventually becomes occluded by tumor ingrowth/overgrowth and sludge. Therefore, we aimed to determine the therapeutic effectiveness of secondary stents and to find differences according to various combinations of the first and second stents for the ...

BACKGROUND: Endoscopic stent insertion is as a method of choice for palliative treatment of malignant biliary strictures. Two types of biliary stent were actually used plastic and metallic self-expandable. Occlusion of the stent can be observed in both. AIM: To assess the management of biliary stent occlusion. METHODS: From january ...

Venous stenting has been shown to effectively treat iliofemoral venous obstruction with good short- and mid-term results. The aim of this study was to investigate long-term clinical outcome and stent patency. Twenty patients were treated with venous stenting for benign disease at our institution between 1987 and 2005. Fifteen of ...

OBJECTIVES: Despite strategies aimed at reducing a postoperative pancreatic fistula (POPF) after pancreatectomies, the overall incidence remains unchanged. One such procedure, until now incompletely explored, is transanastomotic pancreatic (TAP) ductal stenting. METHODS: We conducted a systematic search using MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials from 1983-2008 ...

BACKGROUND AND PURPOSE: A new coil-based metallic ureteral stent offers greater radial strength with longer indwelling time compared with plastic stents. This multicenter retrospective study reviews the clinical experience with this stent for malignant or benign chronic ureteral obstruction. PATIENTS AND METHODS: Patients had stent placement in a retrograde fashion. ...

A novel technique of anastomosis with a short-term degradable stent for pancreaticojejunostomy has been developed and its shape-retentive capability evaluated under conditions of exposure to digestive fluid and its clinical feasibility. The stent was braided manually using Monocryl and PDS-II of 2-0 wire and heat treated at 80 degrees C ...

The impact of overlap of drug-eluting stents on clinical and angiographic outcomes is controversial. Individuals with long coronary lesions requiring implantation of multiple stents are an important patient subgroup for whom careful evaluation and decision-making with optimal stent deployment is needed to ensure the best possible short-term and long-term results.

To present our experience and discuss the various endourological approaches for treating forgotten encrusted ureteral stents associated with stone formation. From July 2006 to December 2008, 14 patients (11 men and 3 women) with encrusted ureteral stents were analyzed. The average indwelling time of the stent was 4.9 years (range ...

To assess the frequency of bacterial colonization on internal ureteral stent and stent associated bacteriuria in different periods of indwelling time, a total of 100 patients (mean age 39.2+/-9.9 years, range 18-60 years, 69 male and 31 female) needing internal ureteral stent placement for different sorts of urinary tract operation ...

Vertebral origin angioplasty and stenting (VOAS) with bare metal stents is associated with a high rate of in-stent restenosis (ISR). We evaluated the rate of ISR after VOAS with drug-eluting stents. Twenty patients (15 men, 5 women; age range, 36-88 years; mean, 63.7 years) were treated for VOAS with a ...

AIM: The aim of this study is to report our experience gained after attempted colonic stenting for colonic obstruction from extracolonic cancer. METHOD This is a retrospective study of all patients who had attempted colonic stenting for obstructing extracolonic cancer in a district general hospital from November 1998 to November ...

Medium- and long-term efficacy of intravascular stenting for congenital heart disease (CHD) has not been determined in Japan. The study comprised a retrospective survey of Palmaz or Palmaz Genesis stent implantation for pulmonary artery stenosis (PA), aortic coarctation, and superior and inferior vena cava lesions (SIVC) from May 1995 to ...

Hilar cholangiocarcinoma (CC) is unresectable in 80% to 90% of cases. Placement of side-by-side bilateral self-expandable metal stents (SEMSs) can be technically challenging in these patients because deployment of the first stent can preclude passage of the second stent. Using a prototype large-diameter therapeutic channel (6-mm) duodenoscope, we positioned guidewires ...

Long-term clinical outcomes after femoropopliteal (FP) stenting with nitinol stents have not yet been clear. We investigated the mid-term efficacy of FP stenting with nitinol stents. This study was a multicenter retrospective study. From April 2004 to December 2008, 511 consecutive patients (639 limbs; mean age 71 +/- 7 years; ...

Colonoscopic insertion of a self-expandable metallic stent (SEMS) has been widely performed for the treatment of malignant colorectal obstruction. Different types of stents could influence the efficacy and complication rate of stent use. To compare the efficacy and complication rates between two SEMSs, the uncovered WallFlex stent and the covered ...

Supported by results of the ECASS III study, intravenous rt-PA thrombolysis is considered a standard therapy for acute stroke within 4.5 h. Still under debate is the use of a more aggressive treatment as that of local intraarterial thrombolysis (LIT) or combining intravenous administration of recombinant tissue plasminogen activator (rt-PA) followed ...

To review the outcomes with the use of balloon-expandable covered iliac kissing stents as compared with bare metal stents in the treatment of atherosclerotic disease at the aortic bifurcation. A review of consecutive patients from a single institution with atherosclerotic occlusive disease at the aortic bifurcation treated with balloon-expandable kissing ...

AIM: To evaluate the mid-term safety and efficacy of a retrieval stent filter and 30mm balloon dilator in the treatment of Budd-Chiari syndrome (BCS) patients with chronic inferior vena cava (IVC) thrombosis. MATERIALS AND METHODS: Twenty-three consecutive patients with BCS and chronic IVC thrombosis were treated with a retrieval stent ...

Self-expanding metal stents (SEMS) are used to treat obstructive malignancies of the esophagus or esophagogastric junction; however, a potential complication is recurrent dysphagia because of tissue in/overgrowth. The placement of a second SEMS is one strategy to re-establish patency of the esophageal lumen. We evaluated the safety and efficacy of ...

Malignant airway-oesophageal fistulas (AEF) are a serious complication of advance oesophageal or lung cancer. The aim of this study was to assess the quality of life before and after stent insertion, and to examine the role of treatment and location of AEF as factors influencing survival in AEF patients managed ...

Endoluminal stents are commonly used for palliative treatment of dysphagia in patients with advanced esophageal malignancies. The most frequently used esophageal stents are self-expanding metal stents. Removable self-expanding plastic stents have recently been used in the management of esophageal cancer patients treated with curative intent. Esophageal stents effectively alleviate dysphagia ...

BACKGROUND AND PURPOSE: Ureteral stents often cause significant patient morbidity that can be difficult to treat. Drug-eluting stent technology allows the local delivery of a drug. Our previous work demonstrated that ketorolac instilled intravesically at the time of ureteral stent insertion significantly decreased flank pain compared with controls. We sought ...

PURPOSE: To report the midterm results of a new vascular endostapling system in the endovascular treatment of abdominal aortic aneurysms (EVAR). METHODS: A prospective single-center study was performed to evaluate the feasibility and safety of the Anson Refix Endostapler, which implants a nitinol clip to provide transmural stent-graft fixation to ...

Background. In patients with unstable angina or non-ST-elevation acute coronary syndrome (NSTE-ACS) who are eligible for PCI, routine stenting is the recommended treatment strategy, based on the opinion of experts. Provisional stenting may provide a viable alternative by retaining the early benefits of stenting without its potential late hazards.Method. Patients ...

The aim of this study was to investigate the association between plaque distribution at left main (LM) bifurcation and target lesion revascularization (TLR) after stenting. Despite favorable reported mid- and long-term results, stent implantation on LM bifurcation remains challenging. The role of atherosclerotic plaque distribution in affecting LM bifurcation stenting ...

OBJECTIVES: The aim of this study was to determine the mid-term patency and the clinical outcome after stenting of chronic occluded caval and iliofemoral venous segments. DESIGN: Observational study. MATERIAL/METHODS: During the period 2000 and 2009, 2400 patients with chronic venous insufficiency (CVI) were evaluated, and 34 with chronic venous ...

The purpose of this study was to compare the clinical effectiveness of expanded polytetrafluoroethylene/fluorinated-ethylene-propylene (ePTFE/FEP)-covered stents with that of uncovered nitinol stents for the palliation of malignant jaundice caused by inoperable pancreatic head cancer. Eighty patients were enrolled in a prospective randomized study. Bare nitinol stents were used in half ...

To compare 2 different types of covered esophageal nitinol stents (Ultraflex and Choostent) in terms of efficacy, complications, and long-term outcome. A retrospective review of a consecutive series of 65 patients who underwent endoscopic placement of an Ultraflex stent (n = 33) or a Choostent (n = 32) from June ...

Prophylactic pancreatic duct (PD) stent placement has been shown to reduce the incidence of post-ERCP pancreatitis (PEP) especially in high-risk patients. However, there is no consensus on the best type of PD stent. The purpose of our study was to evaluate the differences in the outcomes between long (>3 cm) ...

OBJECTIVES: This study compared intravascular ultrasound (IVUS) findings at drug-eluting stent (DES) and bare-metal stent (BMS) sites in patients with very late stent thrombosis (VLST). BACKGROUND: VLST is being increasingly identified since the introduction of DES. VLST can also develop after BMS placement, but the underlying mechanisms remain unknown. METHODS: ...

BACKGROUND: The objective of this study was to examine the impact of self-expanding stents versus locoregional treatment modalities in the setting of esophageal cancer palliation. METHODS: The present meta-analysis pooled the effects of outcomes of 1,027 patients enrolled in 16 randomized controlled trials. RESULTS: The meta-analysis revealed an advantage to ...

PURPOSE: We analyzed our results of long-term T-tube stenting for severe acquired subglottic stenosis secondary to prolonged endotracheal intubation in a neonatal period. MATERIALS AND METHODS: Twenty children treated with T-tube stenting since 1999 were retrospectively analyzed. T-tube stenting consisted of anterior cricoid split and placing silicon T-tube as a ...

It is not clear whether the thin struts and different alloy of a cobalt chromium stent will cause greater acute stent recoil compared to conventional stainless steel stents. We used postintervention intravascular ultrasound (IVUS) examinations to study 99 patients with 116 stented lesions: 61 Xience/Promus stents (cobalt chromium stent group) ...