Search Results
Results 451 - 500 of 1369
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Kluge Alexander - - 2003
The puncture of the popliteal artery for percutaneous intervention is usually performed under fluoroscopic guidance or with the assistance of percutaneous ultrasound to avoid accidental arteriovenous fistulas. We present our experience in 119 cases with the use of a Doppler ultrasound equipped Seldinger needle (SMART needle) for the detection and ...
Hildick-Smith David J R - - 2002
The percutaneous brachial approach to coronary angiography is perceived, rightly or wrongly, to be the easiest of the arm approaches. Predominantly femoral operators may therefore be encouraged to use the percutaneous brachial approach as an occasional procedure. We decided to investigate prospectively whether this was a reasonable strategy by examining ...
Chaturvedi Seemant - - 2002
Extracranial and intracranial angioplasty and stenting of the cerebral vessels are being performed more frequently. One clinical trial demonstrated equivalent outcomes between extracranial carotid angioplasty and carotid endarterectomy, but the results in both groups were suboptimal. Concerns remain about the iatrogenic stroke rate after angioplasty, especially for asymptomatic patients. Angioplasty, ...
Girishkumar Hanasoge T - - 2002
The concept of transluminal treatment of vascular obstruction by the percutaneous approach was introduced by Dotter and Judkins, in 1964. Percutaneous transluminal angioplasty (PTA) developed rapidly into an extremely important therapeutic modality for relieving symptomatic obstructions in major arteries. However, it was not until 1969 that Dotter reported the successful ...
Desai Mihir M - - 2002
BACKGROUND AND PURPOSE: Despite a 10% to 15% failure rate, endopyelotomy remains the treatment of choice for most patients with ureteropelvic junction (UPJ) obstruction. We present a novel technique of percutaneous endopyeloplasty, wherein a precise, full-thickness approximation of a standard longitudinal endopyelotomy incision is performed in a horizontal Heineke-Mikulicz fashion ...
Indolfi Ciro - - 2002
The best animal angioplasty model is the porcine model, which is expensive and not available in all laboratories. The aim of this study was to describe a new rat model of angioplasty. An injury was induced with the use of a standard percutaneous transluminal coronary angioplasty (PTCA) 1.5-mm balloon catheter. ...
Guppy Kern H - - 2002
OBJECTIVE: The postangioplasty evaluation of a stenotic vessel is often conducted by studying serial angiograms to determine the anatomic reduction in stenosis. In flow-limiting stenosis, the hemodynamic change that accompanies these anatomic changes is of great importance in evaluating the success of the angioplasty. The purpose of this article is ...
Boström Ardin A - - 2002
AIM: To evaluate the role of duplex scanning in the selection of patients with infrainguinal arterial occlusive disease for percutaneous transluminal angioplasty (PTA). MATERIAL AND METHODS: From January 1995 through May 2000, 702 patients (952 limbs), with chronic lower extremity ischemia due to infrainguinal atherosclerotic disease diagnosed by duplex scanning, ...
- - 2002
As a result of the many different potential locations to be treated, it is still difficult to evaluate the indications for efficacy and safety of non-coronary percutaneous transluminal angioplasty (PTA) and stenting versus surgical methods, such as endarterectomy or bypass grafts. This paper reviews pertinent data published in the last ...
Cognet François - - 2002
Chronic mesenteric ischemia (CMI) is rare and is often diagnosed late. Fatal malabsorption-related complications or acute ischemic events occur in the absence of treatment. Diagnosis depends on careful acquisition of a medical history and elimination of other conditions. No sensitive and specific tests are available for functional diagnosis of CMI. ...
Nistri M M Neuroradiology Unit, Azienda Ospedaliera Careggi, Florence; - - 2002
Reports of cerebral transluminal angioplasty and stenting in patients with vertebrobasilar ischemic stroke are scanty. Herein we report on the use of "monorail" coronary balloon angioplasty and stent balloon mounted catheters in two patients with acute vertebrobasilar ischemic stroke, focussing on the differences and possible advantages of the "monorail" technique ...
Baek Sang Hong - - 2002
BACKGROUND: Nitric oxide (NO) is a potent vasodilator and antiplatelet agent that suppresses vascular smooth muscle cell proliferation. Hypothesizing that generating NO in the pericardial space would reduce luminal narrowing after coronary angioplasty without affecting systemic hemodynamics, we have determined the effect of a novel NO donor on vascular healing ...
Bérczi Viktor - - 2002
PURPOSE: To assess the efficacy and safety of the Rotarex rotational thrombectomy catheter in treating occlusions of the femoropopliteal arteries. METHODS: The Rotarex catheter (Straub Medical, Switzerland) is a rotational thrombectomy device which is supposed to be able to remove fresh and partially organized clot material from an acutely or ...
Kröger Knut - - 2002
PURPOSE: To explore if the diameter of an occluded superficial femoral artery (SFA) can predict the technical success of percutaneous recanalization. METHODS: Two hundred patients (151 men; mean age 57 +/- 16 years) suffering from peripheral arterial occlusive disease were evaluated with duplex ultrasonography to measure arterial diameters and percent ...
Rocchini Albert P - - 2002
The publications of 2000 and 2001 stress how interventional pediatric cardiology has moved from angioplasty to device placement. This review summarizes the important articles during the past year that evaluated the safety and efficacy of atrial septal defect devices, patent ductus occluders, and stents to treat coarctation of the aorta. ...
Spaetgens Renée L - - 2002
A non-dysmorphic 10 month old female was discovered at surgery to have severe vasculopathy of both the systemic and pulmonary arteries. These findings were confirmed by pathologic examination. Follow-up angiography has confirmed multiple sites of vascular obstruction which appear to be worsening. Angioplasty has only partially relieved these obstructions. The ...
Lombardi Joseph V - - 2002
The efficacy of balloon angioplasty with stent placement is compared to surgical patch angioplasty for thrombosed upper arm hemodialysis grafts with stenotic lesions at the venous anastomosis. Patients with thrombosed hemodialysis grafts terminating at the axillary vein were reviewed. Thirty-eight stents were placed after thrombectomy and venous balloon angioplasty in ...
Albertal M - - 2002
BACKGROUND: Because heterogeneous results have been reported, we assessed coronary flow velocity changes in individuals who underwent percutaneous transluminal coronary angioplasty (PTCA) and examined their impact on clinical outcome. METHODS AND RESULTS: As part of the Doppler Endpoints Balloon Angioplasty Trial Europe (DEBATE) II study, 379 patients underwent Doppler flow-guided ...
Kanadasi Mehmet - - 2002
BACKGROUND: Autonomic nervous system dysfunction and reduced heart rate variability (HRV) after percutaneous transluminal coronary angioplasty (PTCA) were reported in patients with coronary artery disease. However, factors related to reduced HRV are not clearly demonstrated. The aim of the present study was to assess the relationship between HRV indices and ...
Shabat Shay - - 2002
A previously healthy patient developed late compartment syndrome in the cardiac intensive care unit after a brachial artery puncture due to acute heparinization after successful percutaneous transluminal coronary angioplasty (PTCA) and stent implantation. The cardiologists recognized the problem and immediately consulted an orthopedic surgeon, who promptly performed surgery. The latter ...
Hoshina Masaru - - 2002
The peripheral pulmonary artery stenosis (PPS) that complicates congenital heart anomalies can improve after percutaneous transluminal balloon angioplasty (PTA), despite an initial poor response, but there is little information concerning the factors that determine such remodeling. The present study reviewed the hemodynamic and angiographic data before, immediately after, and at ...
Xiang Dingcheng - - 2002
OBJECTIVE: To investigate the dynamic changes of type I collagen, and the activity of metalloproteinases-1 (MMP-1) and tissue inhibitor of metalloproteinases-1 (TIMP-1) after angioplasty. METHODS: The restenotic model of iliac arteries of domestic microswine was established with hypercholesterol feed plus two angioplasties. Angioplastied vessels were harvested at the end of ...
van der Linden Joke - - 2002
The efficacy of percutaneous transluminal angioplasty (PTA) is usually expressed as the angiographic result. Access flow (Qa) measurements offer a means to quantify the functional effects. This study was performed to evaluate the short-term functional and angiographic effects of PTA and to determine the longevity of the functional effects during ...
Iliadis Elias A - - 2002
A 48-year-old male patient diagnosed with Kawasaki disease in childhood presented with recurrent angina after undergoing coronary artery bypass surgery in 1996. Percutaneous transluminal coronary angioplasty and intracoronary stent placement to a lesion in the proximal ramus intermedius were performed successfully. This case illustrates the complementary nature of percutaneous and ...
Hüttl Kálmán - - 2002
PURPOSE: To assess retrospectively the success of percutaneous transluminal angioplasty (PTA) in treating innominate artery stenoses and occlusions in a large series of patients with long-term follow-up results. METHODS: In symptomatic (upper limb claudication, transient ischemic attack, vertebrobasilar insufficiency) patients with high-degree (>60%) stenosis, innominate artery PTA was performed. Long-term ...
Chang Te-Ming Tommy - - 2002
Entrapment and fracture of coronary angioplasty hardware are rare complications of percutaneous coronary artery interventions; however, when such incidents occur, they frequently require surgical management. Percutaneous retrieval should be attempted before surgical retrieval unless hemodynamic stability is a problem. Surgical intervention should focus on grafting the affected coronary vessel(s) and ...
Suzuoki Masato - - 2002
We report the successful treatment of Budd-Chiari syndrome (BCS) due to an obstruction of the hepatic veins. A 19-year-old man developed bleeding esophageal and gastric varices, and a large amount of ascites was thus caused by portal hypertension. BCS complicated by an obstruction of the major hepatic veins was diagnosed ...
Michalis L K - - 2001
PURPOSE: To evaluate the safety and efficacy of vibrational angioplasty in chronic femoropopliteal arterial occlusions. METHODS: Six patients (5 men; ages 52 to 84 years) with peripheral arterial occlusive disease were treated percutaneously using vibrational angioplasty to recanalize the lesion. Three occlusions ranging from 10 to 15 cm long were ...
Doggrell S A - - 2001
Tissue type plasminogen activator is available, through recombinant technology, for thrombolytic use as alteplase. Alteplase is relatively clot specific and should cause less bleeding side effects than the non-specific agents such as streptokinase. Alteplase has been used successfully in evolving myocardial infarction (MI) to reopen occluded coronary arteries. It is ...
Amar A P - - 2001
OBJECTIVE AND IMPORTANCE: We describe a patient who underwent percutaneous transluminal carotid angioplasty and stent placement with the use of intra-arterial gadolinium (Gd-DTPA) instead of iodinated contrast medium. This represents one of the first published reports of the use of Gd-DTPA as an angiographic contrast agent for an interventional neuroradiological ...
Numata K - - 2001
OBJECTIVE: The purpose of our study was to evaluate the usefulness of percutaneous ethanol installation using CO(2)-enhanced sonography for patients with nonresectable hepatocellular carcinoma (HCC). SUBJECTS AND METHODS: Forty-six patients with 65 HCC lesions were examined with contrast-enhanced sonography with direct injection of CO(2) into the proper hepatic artery during ...
Krueger K - - 2001
PURPOSE: To investigate the effect of aortic bifurcation and iliac geometry on centered endovascular irradiation (CEI) of femoropopliteal arteries and evaluate procedure-related complications. MATERIALS AND METHODS: In an experimental tubing model, crossover delivery of the dummy wire by an afterloader using different sheaths (Type I: noncrossover; Type II: crossover, length ...
Liu A Y - - 2001
Hyperperfusion syndrome is a well-documented complication of carotid endarterectomy, as well as internal carotid artery angioplasty and stent placement. We report a similar complication after distal intracranial (middle cerebral artery [MCA] M2 segment) angioplasty. To our knowledge, this is the first report of hyperperfusion syndrome after intracranial angioplasty of a ...
Kamath S - - 2001
Yamanouchi in collaboration with Protein Design Labs (PDL), is developing YM-337, a humanized antibody (C4G1) for the potential treatment of coronary artery disease, including myocardial infarction, arterial thrombosis and ischemic stroke. The antibody is based on a Yamanouchi murine antibody specific for the glycoprotein (GP) IIb/IIIa receptor found on human ...
Solomon L W - - 2001
Percutaneous aortic valvuloplasty produces acute hemodynamic and clinical improvement in patients with aortic stenosis who are poor candidates for surgical valve replacement. The benefits of this procedure are mitigated by the high restenosis rates and 1--2 year mortality, in addition to significant vascular complications associated with the large arterial puncture ...
Morgan Robert - - 2002
Percutaneous thrombectomy (PT) is an established technique for the removal of acute thrombus in occluded arteries, veins and vascular grafts. Percutaneous thrombectomy can be used as an adjunctive treatment to other methods of thrombus removal such as thrombolysis or as sole therapy. The two main methods are percutaneous aspiration thrombectomy ...
Löfberg A M - - 2001
PURPOSE: To investigate the role of duplex scanning in the selection of patients with critical lower-limb ischemia (CLI) for infrainguinal percutaneous transluminal angioplasty (PTA). METHODS: One hundred and sixty-two limbs with CLI (150 patients) that underwent duplex scanning within 3 months prior to conventional diagnostic angiography (n = 88) or ...
Kubaska S M - - 2001
There are many modalities utilized in the treatment of acute arterial occlusions. The purpose of this report will be to review the various studies defining percutaneous chemical thrombolysis, mechanical thrombectomy, and combination therapies. A clinical paradigm for acute limb ischemia will be defined, and a detailed description of techniques utilized ...
Kofoed S C - - 2001
A case of buttock claudication due to isolated internal iliac artery stenoses is presented. Although ankle systolic pressure at rest was within normal limits and distal pulses were palpable, an angiogram demonstrated severe stenoses. A computed tomography scan showed no spinal stenosis. The patient was successfully treated with angioplasty. This ...
Scheinert Dierk - - 2001
Long superficial femoral artery occlusions can be recanalized successfully by excimer laser-assisted angioplasty with a high technical success rate. To maintain a high patency rate, an intensive clinical follow-up is mandatory. Nevertheless, performing repeat interventions will provide a relevant improvement in quality of life that can be maintained in the ...
Johansen A - - 2001
BACKGROUND: Observer variability of 99Tcm-sestamibi myocardial perfusion imaging (MPI) has rarely been investigated. The aim of our study was to evaluate the interpretive reproducibility with this technique. PATIENTS: We report on 108 consecutive male patients with stable angina pectoris, investigated before and after percutaneous transluminal angioplasty (PTCA). METHODS: A 2-day ...
Gao R - - 2001
A "hybrid" revascularization technique has been developed for cases in which a chronic total occlusion of the left anterior descending coronary artery (LAD) cannot be recanalized by percutaneous coronary intervention, but the lesions in the right coronary artery and/or left circumflex artery are very good candidates for angioplasty. This technique, ...
Jacq L - - 2001
The internal mammary artery (IMA) is currently the best graft for coronary bypass surgery and is therefore preferentially anastomosed to major arteries, usually the left anterior descending (LAD) artery. This graft may develop a stenosis, most often at the distal anastomosis. Ostial stenoses are rare and their pathophysiology uncertain. While ...
Ghaye B - - 2001
Interventional Radiology is a technique based medical specialty, using all available imaging modalities (fluoroscopy, ultrasound, computed tomography, magnetic resonance, angiography) for guidance of interventional techniques for diagnostic or therapeutic purposes. Actual, percutaneous transthoracic needle biopsy includes core needle biopsy besides fine needle aspiration. Any pleural, pulmonary or mediastinal fluid or ...
Gu Y Q - - 2001
BACKGROUND: The present paper reports the preliminary experience with surgical treatment of 49 cases of cerebral ischaemia caused by cervical arterial lesions due to Takayasu's arteritis (TA). METHODS: Six men and 43 women were treated between June 1992 and October 1997. Their ages ranged from 15 to 42 years, with ...
Yoo B S - - 2001
We describe a first case of successful transcatheter management of guidewire-induced distal coronary artery perforation and impending cardiac tamponade, which developed during percutaneous coronary angioplasty, with transcatheter injection of polyvinyl alcohol form. This method may be an effective alternative in the management of distal coronary artery perforation requiring surgical repair.
Faries P L - - 2001
The success of percutaneous transluminal angioplasty (PTA) in the treatment of common and external iliac atherosclerotic lesions has been established for the general population. However, several studies have suggested that the presence of diabetes may reduce the effectiveness of iliac angioplasty, particularly in the setting of limb-threatening ischemia requiring concomitant ...
Fasseas Panayotis - - 2001
Distal embolization of particulate matter complicates percutaneous coronary and peripheral interventions more often than had been recognized until recently. A number of distal protection devices are under development. The PercuSurge GuardWiretrade mark is a balloon occlusion thrombectomy device approved by the United States Food and Drug Administration for saphenous vein ...
Payne M M - - 2001
The 1st percutaneous transluminal angioplasty marked a new era in the treatment of peripheral atherosclerotic lesions. The early techniques used in peripheral percutaneous transluminal angioplasty form the basis for subsequent percutaneous intervention both in the peripheral and coronary arteries and are largely the contribution of Charles Dotter. Dotter was the ...
Patel T - - 2000
We report a technique for retrieval of a broken angioplasty wire fragment from the coronary system using a more simplified technique that does not involve the use of a snare or any other retrieval tool. With the use of an additional angioplasty wire and a balloon catheter, we could safely ...
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