Search Results
Results 601 - 650 of 1993
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Zhang Xinghua - - 2012
OBJECTIVES: To evaluate the features of stent gap (SG) and the long-term impact of SG on in-stent restenosis (ISR) in patent stents. METHODS: A total of 347 consecutive patients with 781 stents who underwent MDCT were assessed for SG and ISR. Clinical and stent features were compared between the SG ...
Une Yumi - - 2012
The purpose of this study was to establish a method for eradicating a chytrid fungus (Batrachochytrium dendrobatidis; Bd) from the Japanese giant salamander Andrias japonicus. The emerging agent (Bd) has a high rate of detection in this endangered amphibian species, which is designated as a special natural monument in Japan. ...
Yi Gijong - - 2012
BACKGROUND: Although surgical revascularization is recommended for the treatment of left main coronary artery (LMCA) disease, percutaneous coronary intervention (PCI) attempts have increased, especially after the introduction of the drug-eluting stent. The goal of this study was to compare the midterm outcomes between drug-eluting stenting and off-pump coronary artery bypass ...
Shankar Jai Jai Shiva - - 2012
INTRODUCTION: The most significant factors leading to restenosis are yet to be described in the literature. The purpose of our study was to identify the incidence of restenosis in our patients with carotid artery stenting (CAS) for carotid atherosclerotic disease and to identify risk factors that are significantly responsible or ...
Kuo Hsuan-Chang - - 2012
ObjectiveSmall-bore pigtail catheters have been found to be effective in the treatment of primary spontaneous pneumothorax (PSP) in adults. The aim of this study was to compare the effectiveness of small-bore pigtail and large-bore catheters in the treatment of PSP in young adolescents.Materials and methodsYoung adolescents (<18 years) with initial ...
Hamada Tsuyoshi - - 2012
BACKGROUND: Although self-expandable metal stents (SEMS) are widely used for distal malignant biliary obstruction, one-step SEMS (direct placement without a prior plastic stent) and two-step SEMS (placement at second endoscopic retrograde cholangiopancreatography [ERCP] following plastic stent placement) have not been fully compared. METHODS: In this multicenter retrospective study, patients were ...
van der Merwe Andre - - 2012
Study design: Retrospective case note review. Objectives: To review the results of metallic urethral stents used in patients with neuropathic bladder dysfunction after spinal cord injury (SCI). Setting: Rehabilitation unit for SCI and stroke, Cape Town, South Africa. Methods: We performed a case note review of dual flange Memokath™ stents ...
Qiao Jun - - 2012
To compare the positions of the aorta relative to vertebral bodies and the potential risk of the aorta impingement for pedicle screw (PS) placement between right-sided and left-sided thoracolumbar/lumbar curves of adolescent idiopathic scoliosis (AIS). Thirty-nine AIS patients with a main thoracolumbar or lumbar curve were recruited. The Lenke's classification ...
Ko Euihong - - 2012
OBJECTIVE: We evaluated, using quantitative coronary angiography, the natural history of change that occurred in target lesions after successful sirolimus-eluting stent (SES) implantation. BACKGROUND: Percutaneous coronary intervention (PCI) with drug-eluting stents (DES) has significantly reduced the rate of repeated target lesion revascularization (TLR). However, early studies have raised concerns regarding ...
Nakatani Shimpei - - 2012
OBJECTIVES: We investigate the influence of stent design on stent coverage at 6 to 9 months after sirolimus eluting stent (SES) implantation using optical coherence tomography (OCT). BACKGROUND: Although some reports suggest that stent design may correlate with stent coverage of stent struts, there was few detailed data whether stent ...
Jensen Jesper Khedri - - 2012
BACKGROUND: There are limited data on the optimal management of in-stent restenosis after percutaneous coronary intervention (PCI) with bare metal stent (BMS) or drug-eluting stent (DES) implantations. We assessed the clinical presentation, the incidence, and prognosis of definite stent thrombosis or restenosis after DES implantation for treatment of restenosis. METHODS: ...
Armstrong Ehrin J - - 2012
OBJECTIVE: We hypothesized that patients presenting with stent thrombosis (ST) have a high prevalence of stent underexpansion and malapposition when assessed by intravascular ultrasound (IVUS). BACKGROUND: IVUS can provide mechanistic insight into mechanical factors including stent underexpansion, malapposition, and fracture that may predispose to ST. METHODS: All consecutive cases of ...
Aboodi Michael S - - 2012
BACKGROUND: Self-expanding stents (SES) are reemerging as therapeutic alternatives to treat coronary artery disease. It has been proposed that SES can improve clinical outcomes by inducing less injury at implantation and achieving better vessel wall apposition. To date, little data exists comparing the vascular response to both methods of deployment ...
Gupta Raghav - - 2012
OBJECTIVE: To study the efficacy of isolated pharmaco-mechanical thrombolysis-thrombectomy (IPMT) by Trellis™ device (Covidien, Mansfield, MA) in managing acute limb ischemic (ALI). BACKGROUND: ALI is both life and limb threatening disease with a reported 9-15% mortality and 15-25% limb loss in the first month after presentation. Pitfalls of current endovascular ...
Mihmanlı Ahmet - - 2012
The purpose of this study was to evaluate long-term histomorphometric changes in temporomandibular joints (TMJs) of rabbits after mandibular distraction osteogenesis (DO). Twenty-six rabbits were used in this study. Two of them served as control subjects, and the remaining 24 underwent DO procedures in their left mandibular bodies. After a ...
Ji Changwei - - 2012
The aim of this study is to investigate the impact of the intentional ureteral stenting on the success rate of calculus extraction by second ureteroscopy, when the initial ureteroscopy failed. We prospectively enrolled 512 patients with ureteral calculi who underwent ureteroscopies from April 2005 to May 2011. The patients with ...
Morgan David - - 2012
BACKGROUND: The aim was to assess whether inserting a longer soft silicone short-term dialysis catheter targeting tip placement in the right atrium could improve dialyzer circuit life span compared with inserting a shorter dialysis catheter targeting tip placement in the superior vena cava. STUDY DESIGN: Randomized unblinded controlled study. SETTING ...
Duncan Edward R - - 2012
Background: Robotic catheter ablation aims to improve outcomes after ablation of atrial fibrillation (AF) through improved lesion quality. This study examined electrogram attenuation as a measure of efficacy in response to robotic (ROB) and manual (MAN) ablation. Methods: Patients with paroxysmal AF undergoing ablation as part of an ongoing randomized ...
Mulder Anton A W - - 2012
AIMS: Recently, a multi-electrode catheter system using phased radiofrequency (RF) energy was developed specifically for atrial fibrillation (AF) ablation: the pulmonary vein ablation catheter (PVAC), the multi-array septal catheter (MASC), and the multi-array ablation catheter (MAAC). Initial results of small trials have been promising: shorter procedure times and low adverse ...
Demirel Serdar - - 2012
BACKGROUND AND PURPOSE: Carotid endarterectomy (CEA) is beneficial in patients with symptomatic carotid artery stenosis. However, randomized trials have not provided evidence concerning the optimal CEA technique, conventional or eversion. METHODS: The outcome of 563 patients within the surgical randomization arm of the Stent-Protected Angioplasty versus Carotid Endarterectomy in Symptomatic ...
Oki M - - 2012
The purpose of the present study was to evaluate the feasibility, efficacy and safety of the double Y-stenting technique by which silicone Y-stents are placed on both the main carina and another peripheral carina for patients with tracheobronchial stenosis.Under general anaesthesia using rigid and flexible bronchoscopes, a Dumon Y-stent was ...
Wakabayashi Kohei - - 2012
BACKGROUND: PREVIOUS STUDIES HAVE NOT ADDRESSED VESSEL RESPONSE 5 MM DISTAL TO THE STENT EDGE. THEREFORE, WE INVESTIGATED THE IMPACT OF PACLITAXEL-ELUTING STENTS (PES) VERSUS BARE METAL STENTS (BMS) ON DISTAL VESSELS IN THE SERIAL INTRAVASCULAR ULTRASOUND SUBSTUDIES OF TAXUS IV, V, AND VI. METHODS AND RESULTS: TAXUS IV, V, ...
Smith Vance L - - 2012
Objectives: To review immediate results, patency rates, hemodynamic success, and incidence of concomitant procedures with external iliac artery stenting (EIAS). Methods: Demographic features, category and clinical grade, Trans-Atlantic Inter-Society Consensus II classification lesion type, pre- and postprocedure ankle-brachial indices, and primary patency were compared between group 1 (EIAS without distal ...
Kato Ryuichi - - 2012
Calcified lesions have been known as a cause of stent underexpansion which increases the risk of thrombosis and in-stent restenosis. A dual wire balloon has been introduced to create a focal stress pattern in a localized region of the calcification. We evaluated the combination therapy using a dual wire balloon ...
Papayannis Aristotelis C - - 2012
AIMS: We performed a systematic review of studies reporting stent strut coverage and malapposition post implantation of different drug-eluting stent (DES), as assessed by optical coherence tomography (OCT). METHODS: A review of publications and online databases in May 2011 retrieved 33 published studies reporting stent strut coverage and malapposition post-DES ...
Isayama Hiroyuki - - 2012
BACKGROUND: Covered self-expandable metal stents (CSEMSs) were developed to prevent tumor ingrowth, but stent migration is one of the problems with CSEMSs. OBJECTIVE: To evaluate a new, commercially available CSEMS with flared ends and low axial force compared with a commercially available CSEMS without the anti-migration system and high axial ...
Hynicka Lauren M - - 2012
Purpose The development of neutropenia in a patient treated with rifaximin is reported. Summary A 45-year-old Caucasian woman with severe ulcerative colitis arrived at the emergency department with complaints of worsening abdominal pain, nausea, and vomiting and was found to have extensive portal vein and superior mesenteric vein thrombosis with ...
Katsanos Konstantinos - - 2012
Abstract Purpose: To report the 6-month results of a prospective randomized trial investigating angioplasty with paclitaxel-coated balloons (PCB) vs. plain balloon angioplasty (BA) for the treatment of failing native arteriovenous fistulae (AVF) or prosthetic arteriovenous grafts (AVG). Methods: The enrollment criteria for this non-inferiority hypothesis trial included clinical signs of ...
Wiesinger Benjamin - - 2012
The objective of this study was to compare the performance and radiation doses of a flat-panel detector (FPD) angiography machine with an image intensifier (II) angiography machine. Images of four nitinol stents (Sinus-SuperFlex, SMART, Luminexx, and Zilver stents) in a phantom of a human pelvis were acquired on an FPD ...
Wissgott C - - 2012
For the treatment of chronic lesions, various ablative procedures have been developed with the aim of improving the outcome of percutaneous transluminal angioplasty (PTA)/stent and/or reducing the length and number of implanted stents by removing stenotic or occlusive material. The objective of this study was to compare two mechanical rotational ...
Tian Liangxin - - 2012
Background: Stent grafting is a very important treatment for type B dissection. Some patients are unsuitable for endograft repair because of inadequate proximal and/or distal fixation zones. We reviewed our experience of proximal descending thoracic replacement combined with short-stented elephant trunk implantation for type B dissection for patients without adequate ...
Islam M Nazarul - - 2012
The purpose of the study was to evaluate the therapeutic efficacy of manual small incision cataract surgery (SICS) and trabeculectomy as management option for acute angle closure glaucoma. The first 6 cases of 14 cases of acute angle closure glaucoma seen over a period of 18 months underwent surgical peripheral ...
Claessen Bimmer E - - 2012
Drug-eluting stents (DES) reduce the incidence of in-stent restenosis (ISR) after primary percutaneous coronary intervention (PCI) for ST-elevation myocardial infarction (STEMI). Whether the use of biomarkers might be of utility to identify patients who remain at risk for DES ISR after primary PCI has never been examined. A total of ...
Roy Nobhojit - - 2012
Ureteral stents, despite their ubiquitous use, have not been evaluated for their safety and strength after removal from the patient. While literature is available from the industry with regards to manufacturing and specifications of stents, what happens to a stent after it is inserted into the body, still needs to ...
Sun Shen - - 2012
Clot embolism remains a concern due to flushing of clot and thrombolytic agent centrally in the process of percutaneous pharmacomechanical thrombolysis (PMT) for a thrombosed prosthetic arteriovenous access (PAVA), which might be reduced by a modified technique. We retrospectively review this modified technique that uses two balloon-catheters in crisscross fashion ...
Mølstad Per - - 2012
Abstract Objective. The comparison of all-cause long-term mortality between the use of drug-eluting stents versus bare metal stents in patients treated with percutaneous coronary interventions. Design. Observational data from patients treated at Feiring Heart Clinic from 1999 until 2010 with a follow-up of survival at March 8, 2011. The survival ...
Tapping C R - - 2012
PURPOSE: The purpose of this study was to evaluate the technical success, complications, long-term clinical outcome, and patency after primary infrarenal aortic stenting for aortic and aortoiliac stenosis. Between January 1999 and January 2006, 22 consecutive patients underwent endovascular treatment because of infrarenal aortic stenosis with and without common iliac ...
Bendaly Edgard A - - 2012
BACKGROUND: Balloon Angioplasty (BA) is effective in relieving neoaorta recoarctation (reCoa) after the Norwood procedure. However, recurrence is not uncommon and risk factors for success and recurrence require further elucidation. We report the results of BA for reCoa following the Norwood procedure. We examine acute results and risk factors associated ...
Stapf Christian - - 2012
The majority of cerebral arteriovenous malformations (AVM) detected in the United States are diagnosed unruptured and among those, epileptic seizures constitute the most common clinical presentation in otherwise asymptomatic patients.(1) Recent population-based data suggest the 5-year incidence of first-ever seizures after AVM diagnosis is about 8%, but may increase to ...
Lewalter Thorsten - - 2012
Voltage-Guided Cavotricuspid Isthmus Ablation. Introduction: The recently proposed "maximum voltage-guided" (MVG) technique for radiofrequency catheter ablation of atrial flutter targets high-voltage electrograms along cavotricuspid isthmus (CTI) to ablate the functionally important anatomic muscle bundles alone, without drawing a complete anatomic line across the CTI. This innovative approach may shorten ablation ...
Kereiakes Dean J - - 2012
Aims: Recent reports have suggested susceptibility of novel thin-strut coronary stents to incur longitudinal stent deformation during or following deployment. This analysis assesses the incidence of longitudinal stent deformation in three stent platforms. Methods and results: Quantitative angiographic analysis (QCA) of 2,403 stents from the PERSEUS Workhorse (WH) and PLATINUM-WH ...
Palmerini Tullio - - 2012
The relative safety of drug-eluting stents and bare-metal stents, especially with respect to stent thrombosis, continues to be debated. In view of the overall low frequency of stent thrombosis, large sample sizes are needed to accurately estimate treatment differences between stents. We compared the risk of thrombosis between bare-metal and ...
Song Hae-Geun - - 2012
The purpose of this study is to compare the efficacy of the treatment strategies for in-stent restenosis (ISR) of drug-eluting stents (DES) according to the morphologic pattern of restenosis. Optimal treatment strategies for ISR within DES have not been adequately addressed yet. Patients with ISR of DES were randomized according ...
Abdel-Wahab Mohamed - - 2012
OBJECTIVES: To assess long-term outcome after rotational atherectomy (RA) is followed by drug-eluting stent (DES) implantation in complex calcified coronary lesions. BACKGROUND: RA can favourably modify heavily calcified coronary lesions, but long-term outcome is poor when it is used as a stand-alone therapy or combined with bare-metal stents. DES have ...
Guagliumi Giulio - - 2012
BACKGROUND: New generation drug-eluting stents (DES) incorporate thinner struts and novel alloys to improve clinical performance. Nevertheless, the impact of novel stent materials and designs on human vascular response to DES remains elusive. We sought to evaluate the in-vivo coronary artery response to platinum-chromium (PtCr) versus cobalt-chromium (CoCr) stents featuring ...
Stella Pieter R - - 2012
BACKGROUND: Percutaneous treatment of coronary bifurcation lesions remains hampered by suboptimal results, mainly in the side branch (SB), even with the use of drug-eluting stents (DES). Paclitaxel drug-eluting balloons (DEB) could provide an attractive alternative to treat bifurcations in combination with a provisional T-stenting technique in order to minimize SB ...
López-Benítez R - - 2012
PURPOSE: Protective occlusion of the gastroduodenal artery (GDA) is required to avoid severe adverse effects and complications in radioembolization procedures. Because of the expandable features of HydroCoils, our goal was to occlude the GDA with only one HydroCoil to provide particle reflux protection. METHODS: Twenty-three subjects with unresectable liver tumors, ...
Katsanos Konstantinos - - 2012
INTRODUCTION: There are no cost-utility data about below-the-knee placement of drug-eluting stents. The authors determined the cost-effectiveness of infrapopliteal drug-eluting stents for critical limb ischemia (CLI) treatment. METHODS: The event-free individual survival outcomes defined by the absence of any major events, including death, major amputation, and target limb repeat procedures, ...
Schoppmann S F - - 2012
Esophageal stenting with self-expanding plastic or covered metal stents is believed to be safe and effective. As data on the outcome of patients with long-term stenting are not available, this study was conducted to evaluate the safety and efficacy of long-term esophageal stenting. From 2002 to 2008, 70 patients with ...
Abdel-Wahab Mohamed - - 2012
Background: Controversy exists about the impact of treating bifurcations on overall outcome of coronary interventions using drug-eluting stents (DES). We sought to investigate 1-year outcome of the treatment of bifurcation lesions using DES in a large "real-world" cohort. Methods and Results: Among 5,126 patients enrolled in phase I of the ...
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