Search Results
Results 251 - 300 of 2231
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Gupta Mantu - - 2010
PURPOSE: The use of ureteral stents for ureteral obstruction and after ureteroscopy can result in substantial deterioration in patient quality of life due to pain, frequency and urgency. We postulated that many stent related symptoms may be related to detrusor muscle spasm in and around the intramural ureter, and evaluated ...
Raju Seshadri - - 2010
Treatment of chronic venous insufficiency (CVI) has largely focused on reflux. Minimally-invasive techniques to address superficial and perforator reflux have evolved, but correction of deep reflux continues to be challenging. The advent of intravascular ultrasound (IVUS) scan and minimally invasive venous stent technology have renewed interest in the obstructive component ...
Uitdehaag Madeleen J - - 2010
BACKGROUND: Fully covered stents are designed to resist tissue ingrowth that is often seen with partially covered stents. An issue with fully covered stents is the risk of migration. OBJECTIVE: We aimed to determine efficacy, recurrent dysphagia, and complications of the SX-ELLA stent Esophageal HV, which is fully covered to ...
Sporn Emanuel - - 2010
BACKGROUND: Placement of stents may be an alternative option to treat gastrojejunal (GJ) anastomotic leaks after Roux-en-Y gastric bypass (RYGB) surgery. The aim was to evaluate the performance of a covered metal stent (Alimaxx-E, 18 x 100 mm) across a GJ leak in a porcine model. METHODS: In eight pigs, ...
van Boeckel Petra G A - - 2010
BACKGROUND: Self-expanding metal stents are frequently used for the palliation of malignant dysphagia. Recently, a new stent design, the Evolution stent (Cook Medical, Limerick, Ireland), was developed. The stent has an internal and external silicone coating to resist tissue ingrowth and uncoated dual flanges on both ends to prevent migration. ...
Jeurnink Suzanne M SM Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center Rotterdam, Rotterdam, The - - 2010
Both gastrojejunostomy (GJJ) and stent placement are commonly used palliative treatments of obstructive symptoms caused by malignant gastric outlet obstruction (GOO). Compare GJJ and stent placement. Multicenter, randomized trial. Twenty-one centers in The Netherlands. Patients with GOO. GJJ and stent placement. Outcomes were medical effects, quality of life, and costs. ...
Randon C - - 2010
Excellent results with small stents in coronary arteries have led endovascular therapists to their use in infrapopliteal vessels. However, to date no level I evidence exists to recommend primary stenting over infrapopliteal angioplasty alone. The aim of this randomized single-center trial was to compare their 1-year outcome. A total of ...
Liatsikos Evangelos N - - 2009
PURPOSE: Ureteral patency in malignant ureteral obstruction cases is a therapeutic challenge. We report our long-term experience with palliative treatment for extrinsic malignant ureteral obstruction with percutaneous placement of metal mesh stents. MATERIALS AND METHODS: From January 1996 to December 2005, 90 patients with a mean age of 59 years ...
Gao Zhan - - 2009
BACKGROUND: Although the efficacy and safety of Cypher and Taxus stents for particular patients and lesions had been proven by random clinical trials, their long-term comparative effect for unselected Chinese patients in daily practice is still unknown. METHODS: From April 2004 to April 2005, 682 consecutive patients who were implanted ...
Peirano Miguel A M - - 2009
PURPOSE: To determine the evolution of the proximal aortic neck diameter in mid- to long-term follow-up after endovascular aneurysm repair of abdominal aortic aneurysm (AAA) with a balloon-expandable stent-graft. METHODS: Thirty patients (27 men; average age 71 years, range 56-87) with infrarenal AAAs were treated with the SETA-Latecba balloon-expandable stent-graft ...
Nie Ruqiong - - 2009
Very late stent thrombosis is an uncommon but life-threatening complication after drug-eluting stent implantation in patients with coronary artery disease. Discontinuation of antiplatelet therapy is reported to be the most powerful predictor of stent thrombosis. This article reports on a case of very late stent thrombosis 54 months after implantation ...
Tietke M - - 2009
Since its development in the late 1980s the discussion of risk and benefit of carotid artery stenting (CAS) compared to carotid endarterectomy (CEA) is still ongoing. In this discussion the increasing technical inventions in CAS like PDs, different stent designs and materials and their effect upon the complication rates are ...
Ko Po-Jen - - 2009
OBJECTIVES/HYPOTHESIS: To determine whether stent-to-vocal fold distance influences morbidity following stent placement for tracheal stenosis. METHODS: Fifty-five stent procedures (46 Montgomery T-tube [Boston Medical Products, Westborough, MA] and 9 Dumon stents [Novatech, Grasse, France]) were performed in 40 patients enrolled in this study. RESULTS: The most common complication of stenting ...
Taneja M - - 2009
This study aims to evaluate our experience with self-expanding nitinol stent- enabled recanalisation of long-length occlusions (30 cm or more) of the superficial femoral artery (SFA). 573 patients underwent 842 lower limb interventions from August 2006 to December 2008. A retrospective review of patients undergoing recanalisation of long-length SFA occlusions ...
Dick Petra - - 2009
BACKGROUND: Recent randomized trials investigating stent implantation compared with balloon angioplasty for treatment of superficial femoral artery (SFA) disease have given divergent results in short (mean 5 cm) and intermediate (mean 10 cm) lesions. We reinvestigated whether primary nitinol stenting is associated with a morphologic and clinical benefit when compared ...
Camenzind Edoardo - - 2009
Drug-eluting stents (DES) reduce restenosis rates compared to bare-metal stents. Most trials using DES enrolled selected patient and lesion subtypes, and primary endpoint focused on angiographic metrics or relatively short-term outcomes. When DES are used in broader types of lesions and patients, important differences may emerge in long-term outcomes between ...
Lanciego Carlos - - 2009
PURPOSE: To evaluate the efficacy of plastic polyurethane stents compared with nasolacrimal cryoplasty in the management of epiphora in adults. MATERIALS AND METHODS: Patients (N = 37; mean age, 64 years; range, 34-86 y; six men, 31 women) with severe epiphora with partial/complete obstruction of the nasolacrimal system were randomized ...
Fernández-Esparrach Gloria - - 2010
OBJECTIVES: Self-expanding metal stents (SEMS) are increasingly being used to treat malignant colorectal obstruction. However, complications have been reported in up to 50% of patients. There is limited information on long-term outcomes of these patients. The aim of this study was to retrospectively assess the long-term clinical success of SEMS ...
Beijk Marcel A M - - 2010
The purpose of this study was to evaluate the Genous(TM) endothelial progenitor cell capturing stent vs. the Taxus Liberté paclitaxel-eluting stent in patients with de novo coronary lesions with a high-risk of coronary restenosis. We randomly assigned 193 patients with lesions carrying a high risk of restenosis to have the ...
Stivaros S M - - 2010
BACKGROUND: We present our initial experience with a new biodegradable (BD) esophageal stent in two patients, one for a therapy-resistant benign esophageal stricture, and the other as a temporary measure during curative radiotherapy for oesophageal carcinoma. METHODS: The BD stents need to be loaded into a conventional pull-back delivery system ...
Barlis Peter - - 2010
Incomplete endothelialization has been found to be associated with late stent thrombosis, a rare but devastating phenomenon, more frequent after drug-eluting stent implantation. Optical coherence tomography (OCT) has 10 times greater resolution than intravascular ultrasound and thus appears to be a valuable modality for the assessment of stent strut coverage. ...
Li Ke Wei - - 2009
OBJECTIVE: To investigate the efficacy of endoscopic biliary stenting on common bile duct stones. METHODS: Fifty patients with choledocholithiasis were treated with endoscopic biliary stenting and followed. The early and late outcome was assessed. RESULTS: The procedure was successful in all patients and there was only one patient with mild ...
Tyczynski Pawel - - 2009
AIMS: Dedicated bifurcation stents should facilitate deployment and improve coverage of bifurcational lesions. We used optical coherence tomography (OCT) to assess bifurcation lesions treated with a dedicated stent implanted in the side branch (SB) in conjunction with drug eluting stents in the main vessel (MV) in a culotte-like fashion. METHODS ...
Doi Hiroshi - - 2009
We used intravascular ultrasound (IVUS) to assess the efficacy of the Cappella Sideguard stent system for treating coronary bifurcation lesions. Treatment of bifurcation lesions is associated with restenosis at the side branch (SB) ostium, presumably due to inadequate coverage or stent-vessel wall malapposition. To address these limitations, the Sideguard stent ...
Park Seung Chol - - 2009
AIM: To evaluate the effects of tolterodine extended release (ER) and alfuzosin for the treatment of Double-J stent-related lower urinary tract symptoms. MATERIALS AND METHODS: Fifty-two patients (33 men and 19 women; mean age 52.0 years) who underwent insertion of a Double-J stent after urological surgery were prospectively randomized into ...
Wright Gavin - - 2010
Refractory variceal bleeding is associated with a high mortality. Existing salvage techniques such as transjugular intrahepatic portosystemic shunt (TIPS) and balloon tamponade (BT) have important limitations and may not be appropriate for all patients. To evaluate the safety and efficacy of a novel removable self-expanding metal stent in the management ...
Langer Felix B - - 2010
BACKGROUND: Placement of self-expanding stents is an effective palliation for dysphagia in non-resectable oesophageal or proximal gastric cancer. The aim of this analysis was to assess the efficacy of temporary stent placement for dysphagia relief during neo-adjuvant treatment for locally advanced disease. METHODS: A total of 38 patients scheduled for ...
Toyofuku Mamoru - - 2009
BACKGROUND: Long-term outcomes after stenting of an unprotected left main coronary artery (ULMCA) with drug-eluting stents have not been addressed adequately despite the growing popularity of this procedure. METHODS AND RESULTS: j-Cypher is a multicenter prospective registry of consecutive patients undergoing sirolimus-eluting stent implantation in Japan. Among 12 824 patients ...
Hoffer Eric K - - 2009
Intraoperative radiation therapy (RT) may improve outcomes after pancreaticoduodenectomy for periampullary cancer; however, there is a 20% risk of late portomesenteric venous obstruction. This retrospective study evaluated the percutaneous treatment of portomesenteric venous obstruction that occurred a mean of 10 months after pancreaticoduodenectomy and intraoperative RT. Five patients with medically ...
Poh C-L - - 2011
Aim:  Premature discontinuation of antiplatelet therapy is an independent predictor of late stent thrombosis. We sought to determine the prevalence and predictors of premature discontinuation of antiplatelet therapy after drug-eluting stent implantation among patients in Asia. Methods:  A total of 207 consecutive patients who underwent drug-eluting stent implantation at our ...
Ecke Thorsten H - - 2010
OBJECTIVES: To evaluate safety and patients' comfort by using the ureteral stent symptom questionnaire. Ureteral stents are used to provide upper urinary-tract drainage. METHODS: A total of 133 JJ-ureteral stents with and without antireflux-membrane valve as consecutive referrals for therapy of hydronephrosis have been inserted. Four weeks after insertion of ...
Makris Demosthènes - - 2010
BACKGROUND: Radical resection of primary tracheal tumors may be challenging when more than one-half of the tracheal length is concerned. The present study evaluated the use of cryopreserved aortic allografts (CAAs) to replace long tracheal segments. METHODS: Sixteen adult minipigs underwent tracheal replacement with a CAA. A silicone stent was ...
Atar Eli - - 2009
BACKGROUND: Critical limb ischemia is an increasingly common condition that has high surgical morbidity and limited non-surgical options. OBJECTIVES: To evaluate the use of silicon carbide-coated Motion stents, as compared to reported data for bare metal stents, in elderly patients with infrapopliteal artery stenoses causing critical limb ischemia after failed ...
Bergheanu Sandrin C - - 2009
OBJECTIVES: Stent thrombosis is a life-threatening complication associated with sudden death and acute myocardial infarction. Histopathologic studies have linked the occurrence of very late stent thrombosis in drug-eluting stents (DES) with delayed endothealisation and stent malapposition. Our aim was to investigate if late stent malapposition in DES could be predicted ...
Burzotta Francesco - - 2009
OBJECTIVE: To assess the clinical outcome of unselected patients undergoing drug-eluting stent (DES) implantation on bifurcated lesions using a "provisional T And small Protrusion (TAP)" stenting strategy. METHODS: Consecutive patients undergoing DES implantation on one major bifurcation lesion were treated by main-vessel (MV) stenting, followed (if needed) by side-branch (SB) ...
Meredith Ian T - - 2009
The RESOLUTE trial examined the safety and efficacy of a next-generation zotarolimus-eluting coronary stent, Resolute (Medtronic CardioVascular Inc., Santa Rosa, California). Revascularization benefits associated with current drug-eluting stents are often diminished in the presence of complex coronary lesions and in certain patient cohorts. Resolute uses a new proprietary polymer coating ...
Xu Yong - - 2009
OBJECTIVE: To determine whether post-operative ureteral stenting is necessary after ureteroscopic lithotripsy for the treatment of middle and distal ureteral calculi. METHODS: The trial was carried out in the Department of Urology of West China Hospital, Sichuan University, Chengdu, China, between May 2005 and May 2006. A total of 110 ...
Sauer Bryan G - - 2009
OBJECTIVE: Endoscopic therapy with pancreatic duct (PD) stenting in painful chronic pancreatitis is effective at reducing pain. Few studies have compared response to different PD stent diameters. In this study, we retrospectively analyzed the effect of PD stent diameter on hospitalization for abdominal pain in chronic pancreatitis. METHODS: An existing ...
Rayhanabad Jessica - - 2009
Although the technical success rate of endoscopic stenting has been defined, there is a paucity of outcome data. The purpose of this study was to evaluate the long-term results of colorectal stenting for both malignant and benign disease. A retrospective review was conducted of patients who underwent stenting at a ...
Park Jung Gu - - 2010
We evaluated the effectiveness of a double-layered polytetrafluoroethylene (PTFE)-covered nitinol stent in the palliative treatment of malignant esophageal strictures. A double-layered PTFE-covered nitinol stent was designed to reduce the propensity to migration of conventional covered stent. The stent consists of an inner PTFE-covered stent and an outer uncovered nitinol stent ...
Gobble Ryan M - - 2009
Spontaneous dissection of the superior mesenteric artery (SMA) is exceedingly rare. Treatment options range from observation to anticoagulation to open surgery or endovascular repair. We present our experience to date in the management of isolated SMA dissections. A retrospective review of the vascular surgery and radiology databases from 1998 to ...
Lopes T L - - 2010
Self-expandable metal stents (SEMS) have been mostly reserved for palliation of dysphagia because of advanced esophageal cancer. Fully covered SEMS (FCSEMS) (ALIMAXX-E, Alveolus Inc, Charlotte, NC, USA) offer the choice of removability if complications occur or maximum therapeutic benefit is achieved. To our knowledge, their use has not been studied ...
Chen Shao-liang - - 2009
BACKGROUND: Stenting a bifurcation lesion is technically challenging. No study has reported the clinical outcome of a dedicated bifurcation stent in China. We aimed to analyze the safety and clinical outcome of a novel side branch ostial stent (BIGUARD) stent in treating coronary bifurcation lesions. METHODS: Forty-seven patients were enrolled ...
Park Jae Jun - - 2010
BACKGROUND: Self-expanding metal stent has emerged as an effective treatment option for malignant gastroesophageal junction obstruction. However, data on the clinicopathologic factors associated with stent patency are still lacking. AIM: To investigate the long-term clinical outcomes and prognostic factors, including treatment modalities, affecting stent patency in patients with malignant gastroesophageal ...
Keränen Ilona - - 2009
BACKGROUND: Malignant gastric outlet obstruction (GOO) leads to malnutrition and limits quality of life. Gastrojejunostomy has been the traditional treatment for GOO. Recently, the results of releasing duodenal obstruction with self-expandable metal stents (SEMS) have been encouraging. METHODS: After the exclusion of 13 patients with gastrojejunal or jejunal strictures and ...
Iida Osamu - - 2009
BACKGROUND: Although in clinical practice endovascular therapy (EVT) with a nitinol stent for femoro-popliteal artery (FPA) lesions has been widely applied for TASC II A/B lesions, primary patency beyond 2 years remains unknown, as do the factors associated with restenosis. METHODS AND RESULTS: A prospectively maintained database that included 189 ...
Danenberg Haim D - - 2009
BACKGROUND: Stent thrombosis is a rare but devastating complication of coronary stent implantation. The incidence and potential predictors were assessed in a "real world" single center. OBJECTIVES: To examine whether socioeconomic status indeed affects the occurrence of stent thrombosis. METHODS: We searched our database for cases of "definite" stent thrombosis ...
Ortner Maria-Anna - - 2009
PURPOSE OF REVIEW: Photodynamic therapy (PDT) with hematoporphyrins has emerged as promising treatment for nonresectable cholangiocarcinoma in several prospective observational studies and two randomized studies. This review describes the mechanism of action of PDT, gives an overview of clinical experience in cholangiocarcinoma and summarizes the results published in 2007 and ...
Mohan Uthara R - - 2009
Our aim was to determine key characteristics of stents commonly implanted in the aorta through bench testing and to describe our technique and acute results in patients weighing <30 kg. Despite the increasing use of stents for interventional treatment for coarctation of the aorta (CoA) in larger patients, use of ...
Christman Matthew S - - 2010
OBJECTIVE: To further characterize the kinking forces and degree of curvature that result in failure of various stents, as malignant obstruction of the ureter causes failure of about half of ureteric stents. MATERIALS AND METHODS: Several stents (Silhouette 4.6 F and 6 F, Applied Medical, Rancho Santa Margarita, CA; Sof-Curl ...
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