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Stent Research

15:33 EST 22nd February 2019 | BioPortfolio

Smartphone-based stent tracking application for prevention of forgotten ureteral double-J stents: a prospective study.

Retained or forgotten ureteral stents (FUS) have a potential to cause significant morbidity as well as medico-legal issues and increased cost. We aimed to evaluate the efficacy and usefulness of smartphone-based Ureteral Stent Tracker (UST) application and compare the results with basic appointment card system to prevent FUS, prospectively.

Surface-Degradable Drug-Eluting Stent with Anticoagulation, Antiproliferation, and Endothelialization Functions.

Drug-eluting stents (DES) have been widely applied for saving the life of patients with coronary artery diseases (CADs). However, conventional polymers such as polylactic acid (PLA) and poly (lactic-co-glycolic acid) (PLGA), which are widely applied for drug-eluting stents studies, have serious bulk erosion problems, like high local acidity and poor mechanical properties. Instead, we chose surface...

Does patient-specific 3-dimensionally engineered silicone Y stent really have perfect alignment with the mucosa?

Five-year outcomes after first- and second-generation drug-eluting stent implantation in all patients undergoing percutaneous coronary intervention.

Use of the everolimus-eluting stent (EES) instead of the sirolimus-eluting stent (SES) has been shown to improve clinical outcomes in patients undergoing percutaneous coronary intervention (PCI) out to 3 years. However, it is not known whether the differences in efficacy and safety outcomes remain constant throughout 5 years.

Direct Aspiration versus Stent Retriever Thrombectomy for Acute Stroke: A Systematic Review and Meta-Analysis in 9127 Patients.

The two most common approaches to thrombectomy of emergent large vessel occlusion (direct aspiration and primary stent retriever thrombectomy) have been extensively studied; however, the detailed benefit and risk comparison is largely unknown.

Coronary Lithoplasty for the Treatment of Undilatable Calcified De Novo and In-Stent Restenosis Lesions.

Thoracic Aortic Stent Graft for Patent Ductus Arteriosus with Residual Shunt after Surgical Repair;Report of a Case.

We report a case of a 75-year-old woman with residual shunt of patent ductus arteriosus after initial surgical repair. She was successfully treated by thoracic aortic stent graft and residual shunt disappeared. Re-surgical repair for residual shunt of patent ductus arteriosus is very invasive and challenging procedure. Also endo-vascular repair using coil or an occluding device can be problematic ...

Plaque modification using a cutting balloon is more effective for stenting of heavily calcified lesion than other scoring balloons.

Cutting balloons (CBs) and other scoring balloons are known to be useful for plaque modification in heavily calcified lesions. There have been some reports of the efficacy of these balloons compared to conventional balloons. However, there have been no reports exploring which balloon is most effective among these three types of balloons. We, therefore, compared these three balloons with respect to...

Corrosion and metal release from overlapping arterial stents under mechanical and electrochemical stress - An experimental study.

Intra-arterial stenosis due to atherosclerosis is often treated with endovascular balloon dilatation with a metal stent. Restenosis is common and is frequently treated with a new stent placed inside the existing one or the stents are placed with overlap to cover a larger area of the vessels. Observations of stent fractures, stent compression, accumulation of immunocompetent cells around stents hav...

Endovascular Repair of Aortic Arch Aneurysm with Surgeon-Modified Fenestrated Stent Graft.

The authors describe a technique of treating patients with aortic arch aneurysm using surgeon-modified fenestrated stent graft (SMFSG). The technique is demonstrated in a 80-year-old patient whose aneurysm was successfully excluded with a SMFSG using Cook Alpha thoracic stent graft. The device was deployed, removed from its delivery system, and a fenestration created before being mounted back on t...

LUMEN-APPOSING METAL STENT AND ELETROCAUTERY ENHANCED DELIVERY SYSTEM (HOT AXIOSTM) FOR DRAINAGE OF WALLED-OFF NECROSIS: THE FIRST BRAZILIAN CASE REPORT.

Colonic stent as bridge to surgery versus emergency resection in patients with malignant colonic stenosis.

Stent vs. stoma in malignant colon obstruction - long term results.

Feasibility and safety of duodenal covered self-expandable metallic stent fixation: an experimental study.

Migration of duodenal covered self-expandable metallic stents (C-SEMS) is the main cause of stent dysfunction in patients with malignant gastric outlet obstruction. However, the ideal method to prevent migration has not been clarified. We aimed to evaluate the feasibility and safety of duodenal C-SEMS fixation in this experimental study.

The association between CRP / Albumin ratio and in-stent restenosis development in patients with ST-segment elevation myocardial infarction.

Although interventional methods are the first-line treatment options in ST-segment elevation myocardial infarction (STEMI), the incidence of stent restenosis (SR) is frequent. We investigated the relationship between CRP/albumin ratio (CAR), a novel indicator of inflammatory response, and SR in this study.

Endoscopic removal of a metal stent that migrated into the peritoneal cavity after EUS-guided hepaticogastrostomy.

Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) is useful as an alternative biliary drainage for patients with a difficult biliary approach, but the procedure has a high complication rate . We present a case in which a stent that migrated into the peritoneal cavity was removed endoscopically under fluoroscopic guidance. A 72-year-old male with esophageal cancer presented to our departme...

Stent-retriever thrombectomy in the treatment of infants with acute thrombosis of the superior vena cava and innominate vein.

To describe the efficacy and safety of stent-retriever thrombectomy in infants with thrombosis of the superior vena cava (SVC) and innominate vein.

Ureteral stent versus no ureteral stent for ureteroscopy in the management of renal and ureteral calculi.

Ureteroscopy combined with laser stone fragmentation and basketing is a common approach for managing renal and ureteral stones. This procedure is associated with some degree of ureteral trauma. Ureteral trauma may lead to swelling, ureteral obstruction, and flank pain and may require subsequent interventions such as hospital admission or secondary ureteral stent placement. To prevent such issues...

Dilation or biodegradable stent placement for recurrent benign esophageal strictures: a randomized controlled trial.

A successful case of external stenting for bronchomalacia lasting over 20 years.

The patient had a perimembranous ventricular septal defect and pulmonary hypertension. He underwent pulmonary artery banding followed by external stenting of the left bronchus because of secondary bronchomalacia. The external stent applied was a ringed expanded polytetrafluoroethylene graft, 10 mm in diameter and fixed at 8 points. Intracardiac repair was performed at the age of 2 years and the ex...

Management of Renal Artery Occlusion during Endovascular Aortic Repair.

A 67-year-old man was admitted to the emergency unit with abdominal pain. An infrarenal aortic aneurysm with a diameter of 70 millimeters was detected by computed tomography (CT). In the catheter laboratory, graft stents were implanted into the infrarenal aorta total occlusion of the right renal artery was seen in angiography. The graft stent was punctured with a 30° angled Brockenbrough catheter...

A rare nitinol double layer micromesh carotid stent complication: late thrombosis. First case reported in literature.

Endovascular treatment of carotid artery stenosis is a valuable alternative to open surgery and the evolution of stent materials and cerebral protection devices significantly decreased post-operative neurological complications. Among these, the introduction of nitinol double layer micromesh stent seems to guarantee a reduced peri-operative and post-operative cerebral embolization. Long term result...

Effect of balloon guide catheter on clinical outcomes and reperfusion in Trevo thrombectomy.

The Solitaire stent retriever registry showed improved reperfusion, faster procedure times, and better outcome in acute stroke patients with large vessel occlusion treated with a balloon guide catheter (BGC) and Solitaire stent retriever compared with a conventional guide catheter. The goal of this study was to evaluate whether use of a BGC with the Trevo stent retriever improves outcomes compared...

The LACSEMS: what radiologists need to know.

Endoscopic drainage is increasingly used in lieu of percutaneous or surgical drainage of pancreatitis-related fluid collections. The lumen-apposing, covered, self-expanding, metallic stent (LACSEMS) is a newly produced stent for the transmural drainage of such fluid collections. The use of LACSEMS devices requires close coordination between knowledgeable radiologic and gastrointestinal providers. ...

Intracranial stenting after tumor exeresis complicated by delayed kinking of the middle cerebral artery.

During intracranial tumor resection, the delayed kinking of a major encased vessel has never been described in literature. We present a case which required urgent endovascular treatment performed through a stent positioning. A patient was hospitalized with symptomatic sphenoid meningioma in the left middle cranial fossa. Twelve days after surgery, right-sided hemiplegia and aphasia occurred. Digit...

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