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Results 301 - 350 of 1373
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Tanemoto Masayuki M Department of Medicine, Division of Nephrology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan. - - 2009
Trans-stenotic pressure gradient across the constriction (PG), a hemodynamic variable of atheromatous renal artery stenosis (ARAS), is a widely used indicator for angioplasty, but its association with the outcome of angioplasty has not been fully investigated. In 34 hypertensive cases with unilateral ARAS, we evaluated hemodymanic variables of ARAS with ...
Raynaud Alain - - 2009
Forearm artery lesions are a frequent cause of distal fistula maturation failure. Surgical treatment is difficult because of highly calcified arteries. To redo the arteriovenous anastomosis higher up the forearm is technically difficult and often ineffective because arteries cannot be enlarged. It also causes a loss in puncture zone. Creation ...
D'Auria Enza - - 2009
We present the case of a child who initially presented with gastrointestinal symptoms suggestive of severe rotavirus gastroenteritis complicated by hyponatraemic dehydration. Appropriate intravenous fluid therapy was administered but the patient, still feverish, developed anasarca probably due to hyperpermeability of microvessels following massive inflammation. Atypical Kawasaki disease was diagnosed on ...
Magrans Rudys R Dept. ESAII, Universitat Politècnica de Catalunya (UPC), and CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), c/ Pau Gargallo 5, 08028, Barcelona, Spain. - - 2009
We assess the autonomic nervous system response during prolonged percutaneous transluminal coronary angioplasty (PTCA) by heart rate variability analysis using multifractal indices. These indices are also used to evaluate the effects of the PTCA at different arteries. The indices augmented significantly during transient ischemia and reperfusion periods indicating an increase ...
Shrikhande Gautam V - - 2008
Surgical bypass has long been considered the "gold standard" for treatment of peripheral arterial disease. Endovascular therapy with percutaneous transluminal angioplasty and adjunctive stenting has recently become a primary treatment of lower extremity peripheral arterial disease. However, there has been concern regarding the long-term patency of percutaneous interventions and the ...
Mitsudo Kazuaki - - 2008
BACKGROUND: The success rate of percutaneous coronary intervention (PCI) for chronic total coronary occlusion (CTO) lesions varies depending on the guidewire manipulation skills of the operator. The standardization of guidewire technique is very important. A new technique with a new tapered wire (Conquest, Confianza Pro) was tested to verify effectiveness ...
Canaud Ludovic - - 2008
This prospective, non-randomized study evaluated the short- and mid-term feasibility, safety, primary patency, and limb salvage of cutting balloon percutaneous transluminal angioplasty (CB-PTA) for the treatment of peripheral arterial occlusive disease (PAOD). All data were collected for 128 consecutive patients who underwent CB-PTA to improve infrainguinal arterial circulation between January ...
Huegli Rolf W - - 2009
The purpose was to evaluate the effect of percutaneous transluminal angioplasty (PTA) of the superficial femoral artery (SFA) on the blood oxygenation level-dependent (BOLD) signal change in the calf musculature of patients with intermittent claudication. Ten patients (mean age, 63.4+/-11.6 years) with symptomatic peripheral arterial occlusive disease (PAOD) caused by ...
Walker Sandra - - 2008
The purpose of this research study was to explore groin complication rates of patients mobilized at 3, 4, and 6 hours after femoral arterial sheath removal following a percutaneous coronary intervention procedure. Participants were recruited from those undergoing coronary angioplasty and coronary stent placement at a large public hospital in ...
Lee Thung-Lip - - 2010
Percutaneous closure devices used after percutaneous endovascular procedures have become more popular over the past decade. Occlusive vascular complication of the device is rare but always leads to limb-threatening consequence. We report a case of arterial occlusion caused by distal embolization of the suture material in the percutaneous closure device.
Dosluoglu Hasan H - - 2008
TransAtlantic Society Consensus (TASC)-II recommends bypass for TASC D and low-risk patients with TASC C lesions but does not specify graft types. Percutaneous balloon angioplasty/stenting (PTA/S) and above knee femoropopliteal bypass (AK-FPB) using polytetrafluoroethylene (PTFE) for these lesions were compared to determine if graft type should be part of the ...
Sasaki Yoshio - - 2008
Recent advances in interventional devices and technology have greatly improved the results of percutaneous transluminal angioplasty (PTA), and it is now being widely used. However, it is important to obtain information regarding its results and its long-term patency. We examined the primary success rates and long-term patency in 29 limbs ...
Tan J W C - - 2008
Conventional percutaneous transluminal angioplasty (PTA) for complex or long segment infrainguinal occlusive arterial disease is limited by elastic recoil, dissection and restenosis, with high rates of intermediate and long term restenosis . Debulking with excimer laser has been advocated as a useful adjunctive strategy to improve procedural success and long ...
Doi Shigehiro - - 2008
Percutaneous transluminal angioplasty (PTA) for stenosis of hemodialysis fistulas is associated with a high incidence of restenosis, and improvement of the patency rate after PTA is greatly needed. In addition, angiotensin II receptor blockers (ARB), calcium channel antagonists (CCA) and antiplatelet agents (APA) are commonly administered to most hemodialysis patients. ...
Matsumi Jyunya - - 2008
After the introduction of the retrograde approach in percutaneous coronary intervention for chronic total occlusion (CTO), different kinds of strategies and techniques have been developed in order to achieve final success. However, it has not been fully demonstrated whether these strategies and techniques can really improve the final result. We ...
Tanemoto Masayuki - - 2008
The relative reduction of the lumen diameter by an atheromatous lesion (% diameter reduction) is generally used as an angiographic index for atheromatous renal artery stenosis (ARAS), but its association with the clinical outcome of angioplasty has not been sufficiently evaluated. This study aimed to identify an angiographic index(ices) that ...
Antusevas A - - 2008
OBJECTIVES: To report results of subintimal angioplasty (SA) of superficial femoral artery occlusions and to compare these results with percutaneous transluminal angioplasty (PTA) of similar lesions. DESIGN: Prospective study. PATIENTS: In the period from June 2002 to August 2006, 73 SA procedures were performed in 71 patients and 75 PTA ...
Gurvitch Ronen - - 2008
Distal thrombus embolization during primary percutaneous coronary intervention occurs frequently and is associated with compromised long term outcomes. Apart from pharmacological agents, great interest has recently been shown in various mechanical devices aimed at either reducing the amount of thrombus present or preventing its distal migration. However, despite the intuitive ...
Houben Christoph Heinrich - - 2008
A 35-week gestation male neonate had 3 episodes of necrotizing enterocolitis (NEC), the first of which was managed surgically. Two further episodes of NEC were treated by medical management. Angiography then identified a stricture at the origin of the superior mesenteric artery. Percutaneous transluminal angioplasty successfully dilated the stenosis, and ...
Huétink K - - 2008
In patients with peripheral arterial disease not much is known about the relationship between the localization of the pain and the localization of arterial occlusions in the iliac arteries. Occlusions high in the iliac arteries are assumed to be able to induce pain in the buttocks and upper leg as ...
Gartenschlaeger Soeren - - 2008
Acute mesenteric ischemia (AMI) is a life-threatening emergency. The complications are high by the time of diagnosis in most cases and therefore only few data on primary percutaneous intervention with percutaneous transluminal angioplasty (PTA) and stenting in AMI are available. We present the case of an 84-year-old woman who presented ...
Ramcharitar Steve - - 2008
Magnetic navigation is rapidly emerging as a useful technology in the field of interventional cardiology. Precise control of the direction of a guide wire or a device in three-dimensional space offers a means to access vessels and areas of the heart that are often challenging to access with conventional methods. ...
Leggio Lorenzo - - 2008
We report a case of superior vena cava (SVC) thrombosis in a patient with liver cirrhosis and peritoneovenous surgical Denver shunt, successfully treated by angioplasty. In 2005, a 75-year-old man with a criptogenetic liver cirrhosis and peritoneovenous surgical Denver shunt was admitted to our hospital for chylous ascites. Venography showed ...
Fusaro Massimiliano - - 2008
Arterial revascularization by means of percutaneous transluminal angioplasty (PTA) is a mainstay in the management of patients with peripheral artery disease and critical limb ischemia (CLI). However, when employing standard approaches, PTA of below-the-knee arteries may fail in up to 20% of cases. In the present article, we report a ...
Schneider Michael A E - - 2008
AIMS: Percutaneous coronary intervention (PCI) has been broadly established and often includes highly complex stenoses that require difficult navigation. The purpose of this study is to assess the feasibility of a new magnetic navigation system (MNS) to enable intracoronary guidewire deployment and PCI in daily clinical practice and to compare ...
Wohlgemuth Walter A - - 2008
This report presents a review of the literature on endovascular brachytherapy (EVBT) after percutaneous transluminal angioplasty (PTA) in the femoropopliteal segment. We summarize the pathophysiological changes induced by PTA and EVBT within the vessel wall, technical considerations regarding various radiation sources and their application, the impact of stents on the ...
Hirooka Kana - - 2008
A 34-year-old woman was admitted for treatment of esophageal varices. Seven years earlier, she had been diagnosed with Budd-Chiari syndrome, and percutaneous transluminal angioplasty (PTA) for right hepatic vein (RHV) stenosis was done. On admission, Doppler sonography showed a flat waveform in the RHV. RHV re-stenosis was confirmed on X-ray ...
Sharma Shashank - - 2008
We describe the case of a 46-year-old female who presented with recurrent episodes of cerebrovascular events. She had an unremarkable family history and no risk factors for stroke, apart from smoking. A transthoracic echocardiogram with 'bubble' contrast was normal. However transoesophageal echocardiography demonstrated an aneurysm of the membranous part of ...
Saito Shigeru - - 2008
BACKGROUND: Retrograde approach through the collateral channels has been recently proposed and has the potential to improve the success rate of percutaneous coronary intervention (PCI) in chronic total occlusion (CTO) lesions of the coronary arteries. METHODS: The author performed retrograde approach for CTO lesions in 45 patients from January 2006 ...
Lo Ted S - - 2008
Since the introduction of the use of the radial artery as the means of access for coronary angiography by Campeau in 1989 and for angioplasty by Kiemeneij and Laarman in 1993, this artery is increasingly becoming the preferred route of access for percutaneous coronary intervention. The two main driving forces ...
Koseoglu Kutsi - - 2008
PURPOSE: The aim of this study was to investigate flow rate and resistive index (RI) parameters of the feeding artery after balloon angioplasty of the drainage vein in dysfunctional hemodialysis arteriovenous fistula (AVF) due to venous stenosis/thrombosis. METHODS: A cohort of 10 patients with native dysfunctional hemodialysis AVF was evaluated ...
Shames Murray L - - 2007
Endovascular techniques have been rapidly implemented into the surgical armamentarium for the treatment of infrainguinal arterial occlusive disease. Despite high initial technical success rates, all endovascular interventions in the femoropopliteal- tibial arterial distribution are associated with a significant restenosis and failure rate. Strategies to improve the durability of endovascular therapy ...
Cho Jung Rae - - 2007
PURPOSE: To report the use of a transseptal needle to cross the intimal flap in subintimal angioplasty of a flush aortoiliac occlusion via a retrograde approach. CASE REPORT: A 53-year-old man with claudication of the right lower limb and an angiographically documented right aortoiliac occlusion was treated with subintimal angioplasty ...
Rajdev Sanjay - - 2007
Periprocedural hemodynamic stability is the cornerstone of success for complex percutaneous interventions. Percutaneous left ventricular assist devices (VSD) are increasingly being used to perform complex percutaneous coronary and non-coronary interventions. We report our experience in utilizing the TandemHeart, a percutaneous VSD, to successfully perform complex tandem procedures; balloon aortic valvuloplasty ...
Besarab A - - 2007
In the past 5 years, some clinical trials have questioned the value of surveillance in managing vascular accesses. Although prolongation of access life span is an important end point, reduction of thrombotic events reduces patient risks resulting from loss of access patency. Most of the available evidence suggests that detection ...
Tsuruta Wataro - - 2007
A simple new method for making a rat post-angioplasty stenosis model was developed using a single-lumen compliant balloon catheter/guidewire system and no special diet. This technique was applied to 10 9-week-old Wistar rats fed a normal diet. The catheter/guidewire system was inserted from the external carotid artery and advanced retrogradely ...
Rogers Jason H - - 2007
Lower extremity peripheral arterial occlusive disease poses a unique challenge to traditional angioplasty-based endovascular therapies. The diffuse nature of lower extremity atherosclerotic disease, the presence of chronic total occlusions, poor distal runoff, and the presence of critical limb ischemia all have contributed to the disappointing results of balloon angioplasty for ...
Graziani Lanfroi - - 2008
The present study aimed to report the technical feasibility of percutaneous transluminal angioplasty (PTA) of obstructed or insufficient collateral branches (anterior and posterior perforating branches) from distal peroneal to foot arteries in diabetic patients with chronic critical limb ischemia (CLI) and chronic noncrossable occlusion of the anterior and posterior tibial ...
Tanemoto Masayuki - - 2007
Transluminal angioplasty with a balloon catheter is effective to dilate renal artery stenosis (RAS) caused by fibromuscular dysplasia (FMD), but lesions resistant to the angioplasty exist. In this report, we describe the case of a young woman with RAS of FMD that was difficult to dilate even by cutting-balloon angioplasty. ...
Kornowski Ran - - 2007
BACKGROUND: The LightWire is a newly developed opto-acoustic coronary imaging guidewire that was designed to be used during angioplasty procedures and provide 'online' information on lumen and vessel wall dimensions. METHODS: We designed in vitro models and performed animal trials to confirm proper device sensing capabilities and performance in the ...
Taketani Yoshio - - 2007
A retrograde approach is one of the new techniques of percutaneous coronary intervention (PCI) for the treatment of chronic total occlusions (CTO). We present 4 cases of successful PCI for CTO via a retrograde approach using both radial arteries. There were no complications in these cases. We found that, selected ...
Landis Gregg S - - 2007
The endovascular recanalization of long infrainguinal arterial occlusions has made significant progress in the past decade. The technique of subintimal angioplasty has opened the door to the treatment of lesions uncross-able using standard transluminal approaches. With the advent of new wires and catheters designed to traverse long lesions, and reentry ...
Dosluoglu Hasan H - - 2007
We have observed that some patients with isolated popliteal artery occlusions (PAOs) harbor varying degrees of organized clot, as suggested by the rapidity with which these occlusions are traversed with the Glidewire. We hypothesized that debulking such PAOs by using rheolytic thrombectomy without adjunctive thrombolysis before percutaneous transluminal angioplasty and ...
Kilic Harun - - 2008
The rupture of the guide wire is a very uncommon complication that may produce important consequences as occlusion of the artery of systemic embolism. The management of this event may be interventional or conservative, depending on the clinical situation of the patient and the position of the guide wire inside ...
Wyttenbach R - - 2007
OBJECTIVES: We aimed to assess in vivo the long-term effects of percutaneous transluminal angioplasty (PTA) and endovascular brachytherapy (EVBT) on vessel wall by serial MRI. METHODS: Twenty patients with symptomatic stenosis of the femoropopliteal artery were randomly assigned to PTA (n=10) or PTA+EVBT (n=10, 14Gy by gamma-source). High-resolution MRI was ...
Zeller Thomas - - 2007
Considerable advances have been made over the last decade in percutaneous technology for the treatment of atherosclerotic diseases in the femoro-popliteal arteries. While treatment strategies are well defined in the iliac segment, where angioplasty and stenting perform well in appropriately selected lesions, the search for a durable transcatheter therapy for ...
Kim Byung Moon - - 2007
PURPOSE: In autogenous arteriovenous (AV) fistulas with multiple stenoses at extreme ends, one option for treatment of the stenoses with angioplasty is dual access directed toward both ends of the fistula. The present study is a retrospective evaluation of experiences with an alternative access technique, bidirectional angioplasty with a single ...
Rizzello Vittoria - - 2008
Extraction of pacemaker leads represents the optimal therapy in patients with endocarditis involving the pacemaker leads. The percutaneous approach is becoming popular. However, complications of percutaneous extraction are not rare and incomplete removal of the vegetations with embolization in the pulmonary arteries has been described. This case report describes for ...
Takayama Katsutoshi - - 2007
This is the first report of percutaneous transluminal angioplasty (PTA) of an intracranial artery applying intravascular ultrasound virtual histology (IVUS-VH), which has been recently developed for tissue characterization of coronary artery plaque. We report a case of successful PTA and stenting for symptomatic intracranial vertebral artery stenosis using IVUS-VH.
Napoli M - - 2007
In recent years the high prevalence of diabetes and atherosclerosis in elderly uremic patients starting hemodialysis (HD) has led to the increase in the risk of vascular access (VA) failure caused by pre-existing arterial diseases, including both VA slow maturation and early failure, and upper limb ischemic symptoms. Recently, in ...
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