Search Results
Results 201 - 250 of 770
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Fiehler Jens - - 2005
BACKGROUND AND PURPOSE: Occlusion of major cerebral arteries is the primary source of tissue damage in ischemic stroke and the target of thrombolytic therapy. We hypothesized that large infarcts in more proximal vascular occlusions correspond with substantially increased ischemic lesions shown on initial apparent diffusion coefficient (ADC) maps. METHODS: Initial ...
Dormal P A - - 2005
The treatment of critical limb ischemia remains until now, and more and more, a very challenging topic for vascular surgeons. Among the tools available, the rotational atherectomy appears a useful alternative to surgical revascularisation, especially for the worst cases of infrainguinal arterial occlusive disease. The authors remind the basic principle ...
Caplan Lr - - 2005
Among 407 New England Medical Center Posterior Circulation Registry (NEMC-PCR) patients, the extracranial (ECVA) and intracranial vertebral arteries (ICVA) were the commonest sites of severe occlusive disease followed by the basilar artery (BA). Severe occlusive lesions were found in >1 large artery in 148 patients; 134 had unilateral or bilateral ...
Ogata Toshiyasu - - 2005
It is useful to evaluate the occlusive lesions of middle cerebral artery (MCA) occlusion with transcranial color-coded real-time sonography (TCCS). However, TCCS criteria for locating the site of the MCA occlusion has, as yet, remained unclear. The aim of the present study was to establish TCCS criteria for MCA occlusive ...
Kim Seunghyun - - 2005
The authors report two cases of suddenly deteriorated accommodative esotropia with amblyopia during part-time occlusion therapy. A 7-year-old girl with right accommodative esotropia, which was well controlled, showed marked increase in esodeviation after part-time occlusion and regained orthophoria without occlusion. This phenomenon was repeated. Recession of both medial recti was ...
Sims John R - - 2005
BACKGROUND AND PURPOSE: The relationship between location of occlusion and clinical outcome is poorly understood in patients receiving intravenous tissue-type plasminogen activator (IV tPA). We postulated that acute stroke patients receiving IV tPA with patent vasculature or occult arterial occlusion by CT angiography (CTA) would have better outcomes and decreased ...
Mehta Deval - - 2005
This study examined the changes in brachial artery diameter and flow velocity in response to intravenous adenosine and compared the results to cuff occlusion and single-photon emission computed tomographic (SPECT) images. The change in diameter was less with adenosine than with cuff occlusion. There was no correlation between the presence ...
van Rooij Willem Jan - - 2005
BACKGROUND AND PURPOSE: Controversy exists on how to assess a patient's tolerance before permanent carotid artery occlusion. We sought to determine the positive predictive value of synchronous opacification of hemispheric cortical veins at angiography of the contralateral carotid or vertebral artery as a predictor of tolerance to permanent carotid artery ...
Chan M T V - - 2005
Previous studies have demonstrated that a brief period of ischemia protect against subsequent severe ischemic insults to the brain, i.e. preconditioning. We evaluated the effects of ischemic preconditioning, produced by 2 min proximal temporary artery occlusion, on brain tissue gases and acidity during clipping of cerebral aneurysm. Twelve patients with ...
Türeyen Kudret - - 2005
OBJECTIVE: The use of transgenic and knockout mice has led to a need for a consistent model of mouse transient focal cerebral ischemia. In a great majority of the published mouse middle cerebral artery (MCA) occlusion studies, the methods indicated the type of intraluminal suture used without indicating the actual ...
Ferrari Fernando Bocchino - - 2004
PURPOSE: Inspite of the long experience with the treatment of intermittent claudication, little is known about the natural history of stenotic lesions in the iliac segment. With the advent of endovascular treatment, this knowledge has become important. METHODS: Fifty-two stenosis, diagnosed using arteriography, in 38 claudicant patients were analyzed. After ...
Jamani Kifah Dafi - - 2004
A satisfactory provisional fixed partial denture (FPD) should provide positional stability, maintain the occlusion, and place an additional load on the abutments so that if sensitivity develops, it will subside before the insertion of the definitive FPD. This article presents a technique using an indirect-direct procedure for the fabrication of ...
Ogata Toshiyasu - - 2004
BACKGROUND AND PURPOSE: Transcranial color-coded real-time sonography (TCCS) is a useful tool to evaluate disease of the middle cerebral artery (MCA). This study was undertaken to identify TCCS criteria for the diagnosis of MCA stem and MCA branch occlusions. METHODS: TCCS and digital subtraction angiography were performed in 55 consecutive ...
Derex L - - 2004
In this prospective MRI study, we evaluated the impact of the site of occlusion on multiple baseline perfusion parameters and subsequent recanalization in 49 stroke patients who were given intravenous tissue plasminogen activator (tPA). Pretreatment magnetic resonance angiography (MRA) revealed an arterial occlusion in 47 patients: (1) internal carotid artery ...
Schmittling Zachary C - - 2004
Thrombolytic therapy has been around for close to 30 years now,but its exact role in the treatment of acute and chronic arterial occlusive disease continues to be debated. Studies have produced varying and contradictory results. We are still not sure if thrombolysis has any true advantages over surgical thromboembolectomy,or which ...
Birol Gülnur - - 2004
PURPOSE: This work assessed the hypotheses that (1) hyperoxia is preferable to air breathing during retinal arterial occlusion, (2) hyperoxia during occlusion is beneficial in promoting recovery from arterial occlusion, and (3) hyperoxia has value even if it is delayed relative to the onset of the occlusion. METHODS: Reversible branch ...
Fiol Miquel - - 2004
BACKGROUND: The outcome of patients with inferoposterior myocardial infarction (MI) due to occlusion of right coronary artery (RCA) depends mainly on the location of occlusion (distal vs. proximal). The aim of this study was to evaluate the value of new ECG criteria: the sum of ST depression in I and ...
Kallmes David F - - 2004
The HydroCoil Embolic System (HES) comprises a platinum microcoil coated with an expansile polymer and is approved by the United States Food and Drug Administration for cerebral aneurysm occlusion. We report a series of five cases, two in the internal carotid artery and three in the vertebral artery, in which ...
Hattan Naoichiro - - 2004
For therapeutic angiogenesis to achieve clinical relevance, it must be effective, with minimal side effects to other end organ systems. We developed a cardiac-specific gene delivery mechanism by transfecting autologous vascular smooth muscle cells (VSMC) with VEGF and administering these cells via intracoronary injection. We evaluated the efficacy of this ...
Raymond Jean - - 2004
There is a need for safe and reversible occlusions during percutaneous endovascular procedures. Poloxamer 407 is a non-ionic surfactant with rapid reversible sol-gel transition behaviour. The safety and efficacy of this polymer as a temporary embolic agent was investigated. First, dissolution time after gelation of poloxamer was determined in an ...
Altinkilic Bora - - 2004
The etiology of erectile dysfunction is wide ranging. Penile vascular disorders may result in impaired erection or complete impotence. Almost 30% of erectile dysfunction is due to the presence of systemic disease which affects the blood supply to the penis. The intracavernosal injection test with prostaglandin E1 alone offers limited ...
Klugh David O - - 2004
A 5-month-old quarter horse filly was presented for evaluation of a congenital overbite. The horse was diagnosed with a class 2 malocclusion. A non-removable, acrylic bite plane was constructed to provide a surface for the occlusal forces to be directed in a manner maintaining the normal anatomic position of the ...
Di Paola Rosanna - - 2004
Poly(ADP-ribose) polymerase (PARP), a nuclear enzyme activated by strand breaks in DNA, plays an important role in the tissue injury associated with ischemia-reperfusion and inflammation. Splanchnic artery occlusion and reperfusion causes an enhanced formation of reactive oxygen species which contribute to the pathophysiology of shock. The aim of the present ...
Tsao C-W - - 2004
Blunt trauma to the pelvic or perineal region of the corpora cavernosa is a risk factor for the subsequent development of persistent erectile dysfunction. The hemodynamic investigation of the integrity of the veno-occlusive mechanism has been rare in cases of traumatic impotence. We present two young men with erectile dysfunction ...
Kitafusa Yukio - - 2004
We examined the feasibility of applying the Dental Prescale Occluzer System to the evaluation of occlusion in orthodontic patients. The patients were classified according to the type of malocclusion or facial pattern. The values of occlusal contact area and occlusal force obtained from these individuals differed depending on the type ...
Neuloh Georg - - 2004
OBJECT: The aims of this study were to compare the efficiency of motor evoked potentials (MEPs), somatosensory evoked potentials (SSEPs), and microvascular Doppler ultrasonography (MDU) in the detection of impending motor impairment from subcortical ischemia in aneurysm surgery; to determine their sensitivity for specific intraoperative events; and to compare their ...
Fisher C M - - 2004
Microscopic study of serial sections of the pons in two autopsy cases without known neurologic disease showed that the terminal portion of paramedian tegmental pontine arteries may divide to supply the region of the medial longitudinal fasciculus bilaterally. This finding provides the basis for the occurrence of bilateral internuclear ophthalmoplegia ...
Sarac Timur P - - 2004
This preliminary study examined the technical efficacy, safety, and cost of treating arterial occlusions with a single device that combines pharmacologic and mechanical thrombolysis. The technical success, bleeding complications, and costs for the first 26 consecutive patients in whom lower extremity ischemia was treated with the Trellis infusion catheter (TIC) ...
Chen Ruo L - - 2004
Regional mechanical and electrophysiological changes accompany most ventricular arrhythmias and, it has been suggested, by mechanoelectric feedback. We hypothesized that an intervention producing regional mechanical dispersion was associated with regional, proarrhythmic electrical dispersion and studied the regional mechanoelectric feedback in the right ventricle (RV) of anesthetized lambs. Ten lambs were ...
Lam Everett Y - - 2004
In patients with prosthetic inflow (PI) grafts the proximal anastomosis of autogenous infrainguinal bypass (AIB) can be placed on the PI or on a distal native vessel in the groin. This study was performed to determine the effect of placement of an AIB proximal anastomotic site in a patient with ...
Engelmann Markus G - - 2004
PURPOSE: To compare an endovascular technique with a well established surgical approach to achieve long-term occlusions of large porcine arteries while preserving the integrity of periarterial tissue. METHODS: The femoral arteries in 11 pigs were occluded using surgical techniques on one side and blinded stent-grafts in the contralateral vessel. Feasibility, ...
Tan T Y T - - 2004
In vivo, ex vivo and modelling studies suggest that arterio-arterial anastomoses (AAAs) protect against haemodynamic imbalance in monochorionic twins and thus the development of TTTS. We report the acute onset of severe TTTS at 34 weeks' gestation in a patient with an antenatally visualized AAA which was shown at injection ...
Nakajima M - - 2004
A 49-year-old woman with diabetes mellitus and hyperlipidemia experienced frequent transient monocular blindness in the right eye during a 3-week period. Examination revealed atherothrombotic occlusion of the right ophthalmic artery (OA) without embolic sources. After treatment with aspirin, attacks resolved completely. Her symptoms were attributed to microembolism from the occluded ...
Mikkelsson Jussi - - 2004
OBJECTIVE: We set out to study the effect of the location of the culprit coronary lesion on myocardial infarction (MI) fatality by combining data from MI survivors in the coronary care unit (CCU) and autopsied patients with pre-hospital fatal MI. DESIGN: We studied two simultaneous series of men under 70 ...
Matziolis Georg - - 2004
The duration of the ischemic time in total knee arthroplasty is currently considered to be an important predictor for the development of arterial thrombosis. In the following, we describe two patients with thrombotic occlusions of the popliteal artery. After the first one had been operated on under ischemic conditions, the ...
von Campe G - - 2003
BACKGROUND: Basilar artery occlusion usually causes severe disability or death. Until the recent developments in local intra-arterial or systemic intravenous fibrinolysis, interest in early diagnosis was low because there was no satisfactory treatment. Thus there is little information about the initial phase of the disease. OBJECTIVE: To report on the ...
Wippermann Jens - - 2003
OBJECTIVE: MIDCAB and OPCAB revascularization is currently performed with temporary tourniquet occlusion of the coronary artery to achieve a bloodless surgical field. However, a trauma of the vessel wall due to snaring sometimes occurs. The use of temporary intraluminal shunts (TILS) have recently been advocated as an alternative. The aim ...
Wijendra M - - 2003
PURPOSE: To test the hypothesis that chronic arterial occlusion protects the distal vessels from disease progression. METHODS: Peripheral angiograms from the radiology film store filed under 1997-1999 were reviewed. Those showing unilateral iliac occlusion and those showing unilateral femoro-popliteal occlusion were selected. The severity of arterial disease distal to the ...
Tola Muharrem - - 2003
PURPOSE: The aim of this study was to assess the abilities of color duplex sonography (CDUS) to detect and characterize arterial occlusive disease of the upper extremities. METHODS: We prospectively compared the results of CDUS with those of intra-arterial digital subtraction angiography, which were considered definitive, in patients with symptomatic ...
Vallée J-N - - 2003
Thromboaspiration was performed in a young adult in a coma because of acute basilar artery occlusion associated with cocaine and ecstasy abuse 30 hours after symptom onset. There was complete recanalization of the basilar artery and favorable recovery. Because cocaine and ecstasy abuse has been reported to be a risk ...
Jameson William S - - 2003
Eliminating anterior tooth contact is paramount when treating combination syndrome. It is possible to do so through the use of linear occlusion with a non-interceptive arrangement and the bilateral fulcrum of protrusive stability. The presence of mandibular anterior teeth often complicates this procedure. When establishing the horizontal plane of occlusion, ...
Maksimenko Alexander V - - 2003
Antithrombotic activity of catalase (CAT) and chondroitin sulfate (CHS) preparations was studied in a rat model of arterial injury induced by ferrous chloride. Equal doses (according to catalytically active CAT) were used to examine the effect of native CAT, CAT-CHS covalent conjugate and mixture of native CAT and free CHS ...
Kolbenstvedt A - - 2003
Priapism, whether of the arterial or veno-occlusive type, mainly affects the cavernous bodies, leaving the low-pressure system in glans and corpus spongiosum soft without urethral compression. In the present 2 case reports, the pathologically increased pressure primarily affected the corpus spongiosum. One had arterial priapism following penile revascularization and the ...
Rosman N Paul - - 2003
Basilar artery occlusion in children is rare. The clinical diagnosis of basilar artery occlusion is often difficult because the initial neurologic findings, most frequently hemiparesis, involuntary movements, or headache, are often transient and can suggest complicated migraine, seizures, or both. We have reviewed 37 previously reported pediatric cases of basilar ...
Kim Jinna - - 2003
To evaluate the incidence and angiographic findings of the collateral pathway involving the internal thoracic artery in patients with chronic aortoiliac occlusive disease. Between March 2000 and Februrary 2001, 124 patients at our hospital underwent angiographic evaluation of chronic aortoiliac occlusive disease, and in 15 of these complete obstruction or ...
Gu Weidong - - 2003
Recent evidence suggests that reactive oxygen species (ROS) promote proliferation and migration of vascular smooth muscle (VSMC) and endothelial cells (EC). We tested the hypothesis that ROS serve as crucial messengers during coronary collateral development. Dogs were subjected to brief (2 min), repetitive coronary artery occlusions (1/h, 8/day, 21 day ...
Busch Hans-Jörg - - 2003
Experimental and clinical studies have provided evidence for spontaneous and therapeutically induced arteriogenesis after occlusion of major peripheral or cardiac vessels. Such evidence is lacking for the cerebrovascular system. In halothane-anesthetized rats, different degrees of brain hypoperfusion were induced by one- to four-vessel occlusion, that is, one or both common ...
Koga M - - 2003
OBJECTIVE: To elucidate the value of early computed tomographic (CT) signs of stroke in predicting the occlusion site in the cerebral arteries. PATIENTS: 105 consecutive patients with acute embolic stroke affecting the anterior circulation. METHODS: Four early signs were evaluated on cranial CT within six hours of stroke onset: loss ...
Clark Peter - - 2003
In the last few years there has been a marked increase in the recognition of patients who are potentially at risk of arterial occlusive events during pregnancy. This includes patients with a previous history of arterial occlusion such as myocardial infarction and stroke, patients known to carry acquired or inherited ...
Zeller Thomas - - 2003
PURPOSE: To evaluate a rotational thrombectomy device in the treatment of acute and subacute/chronic thrombotic infra-aortic occlusions of native vessels and bypass grafts. METHODS: From July 2000 to February 2002, 98 patients (65 men; mean age 66+/-9 years, range 47-90) with 100 thrombotic occlusions (mean age of occlusion 31+/-33 days, ...
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