Search Results
Results 451 - 500 of 2722
< 5 6 7 8 9 10 11 12 13 14 15 >
van der Hoeven, Barend ...
The aim of this thesis was to evaluate new developments in the treatment of patients with ischemic heart disease, with special focus to the invasive evaluation of plaque characteristics in patients with ST-segment elevation myocardial infarction (STEMI) and treatment of STEMI patients with drug-eluting stents. Additionally, the results of two ...
Yildiz Ali - - 2009
Inflammation plays a key role in the development of acute coronary syndromes and its consequences. Coronary stenting provides improved mortality and morbidity in appropriate cases by several routes. However the beneficial effects of the coronary stenting on inflammation remain controversial as the coronary stenting might lead to--systemically detected--local inflammatory reaction.
Ko Dennis T - - 2008
BACKGROUND: Diabetic patients frequently receive drug-eluting stents (DES) during percutaneous coronary interventions (PCI), but recent data have raised concerns as to whether DES are associated with increased risk of myocardial infarction or death. Accordingly, we sought to evaluate the long-term safety and effectiveness of DES in diabetic patients. METHODS: We ...
Kraitzer Amir - - 2008
Coronary artery disease is characterized by a narrowing (stenosis) of the arteries that supply blood to the tissue of the heart. Continued restriction of blood flow manifests itself as angina and ultimately myocardial infarction (heart attack) for the patient. Heart bypass was once the only treatment for this condition, but ...
Singh Inder M - - 2008
Symptomatic myocardial bridge is treated with medical therapy, but in refractory cases, percutaneous revascularization has been used. We describe two cases to highlight differences in coronary compression and flow pattern, which make the luminal narrowing associated with a myocardial bridge anatomically and physiologically different from the fixed stenosis of atherosclerotic ...
Dirksen Maurits T - - 2008
AIMS: This follow-up study was performed to assess the long-term effects of paclitaxel-eluting stents (PES) compared with bare-metal stents (BMS) in patients who had undergone a percutaneous coronary intervention (PCI) for ST-elevation myocardial infarction (STEMI). METHODS AND RESULTS: The PASSION trial randomly assigned 619 patients with STEMI to receive either ...
Grube Eberhard - - 2008
AIMS: The Custom NX 36 Drug Eluting Stent (DES) System is designed to treat coronary lesions via in situ stent length customisation. The stent evaluated in this study consists of nine interdigitated stent segments, each 4 mm in length, coated with a biodegradable formulation of Biolimus A9 and Poly-Lactic-Acid, a ...
Meeks Joshua J - - 2008
PURPOSE: Retrieval of a proximally migrated ureteral stent is a technically challenging endoscopic procedure. We describe the use of a paired wire helical stone retrieval basket through a flexible ureteroscope to remove proximally migrated ureteral stents. MATERIALS AND METHODS: Five ureteral stents were lost in the proximal (1) and distal ...
Kassaian S E - - 2008
A 32-year-old woman admitted to the emergency department was diagnosed with acute anterior myocardial infarction, treated with thrombolytics and referred for angiography on the basis of her age. The patient was then referred for angioplasty with the diagnosis of an atherosclerotic lesion in the left anterior descending (LAD) coronary artery. ...
Dani Sameer - - 2008
AIMS: There have been recent concerns regarding the long-term safety of the first generation of drug-eluting stents, which utilised a permanent polymer coating for drug delivery. SERIES I is a prospective, non-randomised, first-in-man open label study with the biodegradable polymer-based Supralimus sirolimus eluting stent (Sahajanand Medical Technologies Pvt. Ltd, India) ...
Stone Gregg W GW Columbia University Medical Center, The Cardiovascular Research Foundation, 111 E 59th St, 11th Floor, New York, NY 10022, USA. - - 2008
A thin, cobalt-chromium stent eluting the antiproliferative agent everolimus from a nonadhesive, durable fluoropolymer has shown promise in preliminary studies in improving clinical and angiographic outcomes in patients with coronary artery disease. To evaluate the safety and efficacy of an everolimus-eluting stent compared with a widely used paclitaxel-eluting stent. The ...
Taylor Carolyn W CW Clinical Trial Service Unit, Oxford, United Kingdom. - - 2008
To quantify the radiation doses received by the heart and coronary arteries from contemporary tangential breast or chest wall radiotherapy. Fifty consecutive patients with left-sided breast cancer and 5 consecutive patients with right-sided breast cancer treated at a large United Kingdom radiotherapy center during the year 2006 were selected. All ...
Windecker Stephan - - 2008
Drug-eluting stents (DESs) effectively reduce angiographic restenosis and the clinical need for repeat revascularization procedures as compared with bare-metal stents. Widely publicized concerns arose recently about the incidence of late and very late stent thrombosis with the use of first-generation DESs. Recent systematic reviews and large-scale registry studies demonstrated similar ...
Khattab Ahmed A - - 2008
The differential safety and efficacy profiles of sirolimus-eluting stents when implanted in patients with multivessel coronary artery disease who have increased body mass indexes (BMIs) compared with those with normal BMIs are largely unknown. This study evaluated the impact of BMI on 1-year outcomes in patients with multivessel coronary artery ...
Costa Marco A - - 2008
Drug-eluting stent failures were associated with various clinical factors. However, the clinical impact of stent deployment technique was unknown. This study was designed to evaluate the frequency and impact of suboptimal percutaneous coronary intervention on long-term outcomes of 1,557 patients treated with sirolimus-eluting stents (SESs) in 41 US hospitals. All ...
Hannan Edward L - - 2008
BACKGROUND: Few studies have compared medium-term outcomes for drug-eluting stents (DES) and bare metal stents, and most are relatively small randomized controlled trials. Furthermore, since the introduction of DES, there has been increased use and duration of use of clopidogrel, statins, and other evidence-based therapies. The purpose of the present ...
Manghat Nathan - - 2008
To determine whether 64-slice multidetector computed tomographic coronary angiography (MDCTA) can accurately assess the coronary artery lumen in symptomatic patients with previous coronary artery stents and potential in-stent restenosis (ISR). The primary aim was to determine the accuracy of binary ISR exclusion using MDCTA compared with invasive catheter angiography (ICA). ...
Wiviott Stephen D - - 2008
BACKGROUND: Intracoronary stenting can improve procedural success and reduce restenosis compared with balloon angioplasty in patients with acute coronary syndromes, but can also increase the rate of thrombotic complications including stent thrombosis. The TRITON-TIMI 38 trial has shown that prasugrel-a novel, potent thienopyridine-can reduce ischaemic events compared with standard clopidogrel ...
Mortier P - - 2008
Stents are small tubelike structures, implanted in coronary and peripheral arteries to reopen narrowed vessel sections. This endovascular intervention remains suboptimal, as the success rate is limited by restenosis. This renarrowing of a stented vessel is related to the arterial injury caused by stent-artery and balloon-artery interactions, and a local ...
Kaluski Edo - - 2008
MGuard is an ultra-thin polymer sleeve attached to the external surface stents. The polymer was designed to reduce distal embolization during coronary, renal, carotid, and vein graft stenting, and to potentially serve as a platform for uniform drug delivery. This report discusses the theoretical considerations that resulted in the conception ...
Lee Nae Hee - - 2008
Percutaneous coronary intervention (PCI) of a chronic total occlusion (CTO) caused by in-stent restenosis (ISR) is sometimes very difficult due to the presence of hard occlusive components that prevent wire passage. We report a case of CTO caused by ISR (ISR-CTO) in which the occlusion was crossed with the wire ...
Pierre Sean A - - 2008
INTRODUCTION: A multi-basket ureteral stent was tested and modified to assess feasibility of load-release features intended to release stone(s) if resistance is encountered during stent removal. METHODS: Three versions of the stent were evaluated: (1) unaltered stent, (2) one strand of each basket partially cut to 50%, or 75% (3) ...
Bhatt Snehal H - - 2008
OBJECTIVE: To describe a case of very late stent thrombosis after dual antiplatelet discontinuation in a patient with a previous history of stent thrombosis. CASE SUMMARY: A 62-year-old man with a history of coronary artery disease, multiple acute coronary syndromes requiring percutaneous coronary interventions with multiple stent placements, and acute ...
Ecker Robert D - - 2008
OBJECTIVE: Among neurosurgeons, cardiologists, neuroradiologists, vascular surgeons, and peripheral vascular radiologists, the metric of clinical competency in carotid artery angioplasty and stenting (CAS) continues to be debated. This review of fellowship experience with more than 200 CAS cases was undertaken to ascertain the 30-day morbidity and mortality rates at a ...
Shaikh Fareed - - 2008
BACKGROUND: The predictors and clinical significance for stent fracture (SF) in drug-eluting stents (DES) remain unknown. We identified procedural factors leading to SF and its clinical consequences in DES. METHODS: Percutaneous coronary interventions were performed on 3,920 patients with DES over 12 months. In-stent restenosis (ISR) of DES was observed ...
Gerber Robert - - 2008
There has been a decline in the role of intravascular ultrasound (IVUS) guiding stenting. IVUS has lost favor with interventional cardiologists largely due to the emergence of drug eluting stents (DES). The advent of DES has lowered the need to maximize the final result due to the known low late-loss. ...
Bollati Mario - - 2008
We report the case of a 55-year-old man who underwent coronary angiography in 2004 for early angina following anterior ST-elevation myocardial infarction. Angiography disclosed a critical stenosis in the proximal left anterior descending artery and significant stenoses in the right coronary artery and first obtuse marginal branch, treated with two ...
Gopalakrishnan P P - - 2008
Indications for blood transfusion in critically-ill patients in general have become very restrictive. Still, the role for blood transfusion in the setting of acute coronary syndrome is unclear, as evidence regarding outcomes with different blood transfusion strategies has been conflicting. We report a 53-year-old Hispanic woman with acute ST-elevation myocardial ...
Le Feuvre C - - 2008
Conflicting data exist on the risk of stent thrombosis with drug-eluting stents (DES) versus bare-metal stents (BMS). Little is known about the potential different characteristics and outcomes of DES versus BMS thrombosis. To compare the characteristics, timing and outcomes of patients with angiographic stent thrombosis according to type of stent ...
Gershlick A H - - 2008
Angioplasty has come a long way in 30 years. It is now the dominant therapy for obstructive coronary disease and becoming so for acute myocardial infarction and for the majority of patients it is a simple, quick procedure with same- or next-day discharge with negligible morbidity. Many of the developments ...
Eshtehardi Parham - - 2008
We review the case of a 46-year-old man who underwent elective percutaneous coronary intervention and stenting of the left anterior descending artery and right coronary artery with two sirolimus- and paclitaxel-eluting stents. Four days after angioplasty, he was readmitted with cardiogenic shock due to acute anterior and inferior myocardial infarction. ...
Seung Ki Bae - - 2008
BACKGROUND: Several studies have compared the treatment effects of coronary stenting and coronary-artery bypass grafting (CABG). However, there are limited data regarding the long-term outcomes of these two interventions for patients with unprotected left main coronary artery disease. METHODS: We evaluated 1102 patients with unprotected left main coronary artery disease ...
Valgimigli Marco M Cardiovascular Institute, University of Ferrara, Ferrara, Italy. - - 2008
Abciximab infusion and uncoated-stent implantation is a complementary treatment strategy to reduce major adverse cardiac events in patients undergoing angioplasty for ST-segment elevation myocardial infarction (STEMI). It is uncertain whether there may be similar benefits in replacing abciximab with high-dose bolus tirofiban. Similarly, the use of drug-eluting stents in this ...
Park Jong-Seon - - 2009
Stent fracture (SF) is emerging as one of the leading causes of late cardiac events after sirolimus-eluting stent (SES) implantation. A 44-year old man was admitted with ST-segment elevated myocardial infarction 22 months after treatment with SES. SF was confirmed by fluoroscopy, intravascular ultrasound study (IVUS) and computerized tomographic study. ...
O'Brien Barry - - 2008
The objective of this study was to explore titanium alloys with increased elastic modulus and improved radiopacity, with a view to utilizing titanium in balloon-expandable coronary stents. Ti-50Ta, Ti-45Ta-5Ir and Ti-17Ir alloys were prepared using arc-melting techniques. Microstructural and tensile properties were evaluated in solution-treated conditions for each alloy, and ...
Kaneda Hideaki - - 2009
AIM: To examine the impact of primary stent implantation versus balloon angioplasty on long-term outcome (median 8 years) in 117 patients with ST-elevation myocardial infarction (STEMI) from randomized trials. METHODS: Enrolled patients were those presenting with STEMI within 12 h of symptom onset. Patients were randomized to either Palmaz-Schatz stent ...
Ormiston John A - - 2008
BACKGROUND: A fully bioabsorbable drug-eluting coronary stent that scaffolds the vessel wall when needed and then disappears once the acute recoil and constrictive remodelling processes have subsided has theoretical advantages. The bioasorbable everolimus-eluting stent (BVS) has a backbone of poly-L-lactic acid that provides the support and a coating of poly-D,L-lactic ...
Zellweger Michael J - - 2008
Drug-eluting stents reduce clinical events related to restenosis but may be complicated by late stent-thrombosis. Whereas assessment of target-vessel ischemia by myocardial perfusion scintigraphy identifies relevant restenosis noninvasively, it is unknown whether this technique may also predict late clinical events related to late stent-thrombosis and to restenosis after drug-eluting stent ...
de la Torre-Hernández José M - - 2008
OBJECTIVES: This study sought to assess the incidence, predictors, and outcome of drug-eluting stent(DES) thrombosis in real-world clinical practice. BACKGROUND: The DES thromboses in randomized trials could not be comparable to those observed in clinical practice, frequently including off-label indications. METHODS: We designed a large-scale, nonindustry-linked multicentered registry, with 20 ...
Seitou Tetsushi - - 2008
OBJECTIVES: Minor cardiac biomarker elevation after percutaneous coronary intervention has long-term prognostic significance. The sirolimus-eluting stent (Cypher) has been reported to require high postinflation pressure for optimal implantation. We examined the incidence of minor cardiac biomarker elevation induced by Cypher implantation. METHODS: We measured the serum concentration of cardiac troponin-I ...
Medda Massimo - - 2008
We report the case of a patient with subtotal occlusion of the origin of the left common carotid artery (CCA) following thoracic graft placement. Retrograde endovascular placement of a stent-graft by minimal cervical access was undertaken to repair the occlusive lesion of the left CCA and prevent future complications of ...
Lim Sang Yup - - 2008
BACKGROUND: This study evaluated the inflammatory reaction at the site of overlapping drug-eluting stents (DES) in a porcine model of in-stent restenosis. METHODS AND RESULTS: Twenty bare metal stents (BMS) (group I; n=10), 20 sirolimus-eluting stents (SES) (group II: n=10), 20 paclitaxel-eluting stent (PES) (group III: n=10), and 10 PES ...
Suzuki Yoriyasu - - 2008
BACKGROUND: Percutaneous coronary intervention (PCI) continues to revolutionize the treatment of coronary atherosclerosis and technologic advances require a preclinical coronary stenosis model. The purpose of this study was to systematically evaluate a porcine restenosis model of thermal balloon injury compared to stent overstretching. METHODS: To evaluate this injury model, 22 ...
Metzler Helfried - - 2008
New trends in interventional cardiology, e.g. the increasing practice of coronary intervention with stent implantation and the prolonged use of dual antiplatelet therapy--usually a combination of clopidogrel and aspirin--has also increased the number of patients presenting for non-cardiac surgery. The two most commonly used stent types, bare-metal stents (BMSs) and ...
May Andreas E - - 2008
Dual antiplatelet therapy with aspirin and clopidogrel is currently the standard therapy after coronary stent implantation to prevent a life-threatening stent thrombosis. However, a variety of procedural and individual factors contribute to the individual patient risk and have to be taken into account to allow for an individual recommendation for ...
Merrot Olivier - - 2008
OBJECTIVE: To describe in a retrospective study our experience in endoscopic management of tracheobronchial stenosis with 145 stents (11 different models). METHODS: We analyzed the medical records of 103 patients (67 males and 36 females) who underwent the placement of prosthesis for any causes of tracheobronchial stenoses between 1990 and ...
Gurm Hitinder S - - 2008
BACKGROUND: Drug-eluting stents have emerged as the favored device for percutaneous coronary intervention. It is not clear if there are differences in the currently available drug-eluting stents. We performed a meta-analysis to systematically evaluate currently available data comparing sirolimus-eluting stents (SESs) with paclitaxel-eluting stents (PESs) in patients with coronary artery ...
Kumbhani Dharam J - - 2008
OBJECTIVE: Implantation of drug-eluting stents has emerged as the predominant percutaneous revascularization strategy in diabetic patients, despite limited outcomes data. Accordingly, our aim was to conduct a meta-analysis to assess the benefit and safety profile of drug-eluting stents in diabetic patients. METHODS: We included randomized trials comparing either the paclitaxel- ...
Pfisterer Matthias - - 2008
BACKGROUND: Based on a subgroup analysis of 18-month BAsel Stent Kosten Effektivitäts Trial (BASKET) outcome data, we hypothesized that very late (> 12 months) stent thrombosis occurs predominantly after drug-eluting stent implantation in large native coronary vessel stenting. METHODS: To prove or refute this hypothesis, we set up an 11-center ...
Rossini Roberta - - 2008
The aim of this study was to test the safety and efficacy of a novel rapid desensitization procedure in patients with acetylsalicylic acid sensitivity and coronary artery disease who underwent cardiac catheterization and coronary stent implantation. Aspirin plays a key role in the secondary prevention of atherothrombotic events and thrombotic ...
< 5 6 7 8 9 10 11 12 13 14 15 >