Search Results
Results 251 - 300 of 781
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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, ...
Werner Gerald S - - 2003
BACKGROUND: The evaluation of new therapeutic modalities to induce collateral growth in coronary artery disease require improved methods of angiographic characterization of collaterals, which should be validated by quantitative assessment of collateral function. METHODS AND RESULTS: In 100 patients with total chronic occlusion of a major coronary artery (duration >2 ...
Johnston Ronald B RB - - 2003
PURPOSE: Acute occlusion of the abdominal aorta requires rapid diagnosis and intervention to prevent loss of life or limb. The overall mortality due to embolic occlusion is reported to be over 30%. The most common source of emboli is the heart, secondary to atrial fibrillation or myocardial infarction. METHODS: A ...
Buschmann Ivo - - 2003
The role of the collateral circulation has been controversially discussed over many decades. With the availability of purified growth factors such as the fibroblast growth factors several studies provided data, that the growth of collateral arteries, termed arteriogenesis, is not limited to its natural timecourse. When applied in experimental models ...
Leatherman James W - - 2003
OBJECTIVE: To evaluate partial occlusion in patients with pulmonary hypertension with regard to a) the degree to which it leads to overestimation of pulmonary artery occlusion pressure (Ppao) and b) identification of factors that could enhance its recognition. DESIGN: Observational descriptive study. SETTING: Medical intensive care unit. PATIENTS: Fourteen patients ...
Jim M H - - 2003
In a critical distal right coronary artery bifurcation lesion, the proximal course of the posterior descending artery was also subtotally occluded. The posterior descending artery gave rise to a small sidebranch just before the occlusion. In the subsequent revascularization procedure, the bifurcation lesion was double-wired. One wire was placed in ...
Hsi Charles - - 2002
Mechanical coronary artery occlusion is required for minimally invasive direct coronary artery bypass and off-pump coronary artery bypass surgery. It is important that the method of occlusion be minimally traumatic. Chronic effects of these methods have never been studied. Temporary occlusion of coronaries utilizing suture snare, silastic loop snare, and ...
Vasilenko Yu V - - 2002
The mechanism of extravasal occlusion of blood vessels with titanic clips "Atrauclip" and "Ligaclip extra" was studied in order to reveal indications and contraindications to their use. Occlusion with the clips of both types was ineffective in vessels with a diameter of >7.0 mm. Arteritis or the presence of an ...
Kern P - - 2002
We report a case of a 37-year-old white woman, who presented with digital arterial occlusions associated with parvovirus B19 infection. Two other member of the family presented acute febrile illness, polyarthralgia (husband), and erythema infectiosum (son) during the same month. This new report gives weight to the concept that acute ...
Brandt Tobias - - 2002
Acute basilar artery (BA) occlusion is associated with an extremely high mortality. The pathogenesis in younger patients is usually embolism form cardiac sources or less frequently from vertebral artery dissection. Local atherothrombosis is more common in elderly patients. Differently to the carotid territory, for the vertebrobasilar territory there are no ...
Rockman Caron B - - 2002
Total occlusion of the contralateral internal carotid artery has often been considered to be a predictor of poor outcome after carotid endarterectomy (CEA) of ipsilateral carotid stenosis. Data from both the North American Symptomatic Carotid Endarterectomy Trial and the Asymptomatic Carotid Atherosclerosis Study have suggested this to be true. However, ...
Kaynak Kamil - - 2002
Three patients with arterial echinococcosis presented with chronic or acute arterial occlusion. One case diagnosed as Leriche's syndrome was found at surgery to have aortic occlusion caused by hydatid cysts; arterial reconstruction was performed by aortoiliac interposition of a woven Dacron vascular graft. In the other 2 cases presenting with ...
Palmer Nicholas D - - 2002
The X-SIZER thromboatherectomy catheter system (EndiCOR Medical, Inc.) was initially developed for the treatment of thrombus in acute coronary syndromes. We present the case of a 64-year-old man with thrombotic occlusion of the left circumflex coronary artery. Antegrade flow was restored by aspiration of platelet thrombus at the point of ...
Duncan I C IC Unitas Interventional Unit, Centurion; South Africa - - - 2002
Abciximab is one of a new class of platelet aggregation inhibitors that has to date been used mainly in the management of acute coronary ischaemic syndromes or during cardiac intervention for the prevention and treatment of acute vessel occlusion during and after angioplasty or stent placement. More recently, it has ...
Urbach H - - 2002
Little is known about whether recanalization of carotid territory occlusions by local intra-arterial thrombolysis (LIT) depends on the type of the occluding thromboembolus. We retrospectively analysed the records of 62 patients with thromboembolic occlusions of the intracranial internal carotid artery (ICA) bifurcation or the middle cerebral artery who were undergoing ...
Piscione Federico - - 2002
Eighty-three consecutive patients with 85 coronary total occlusions undergoing coronary angioplasty were retrospectively studied. Patients were divided into two groups according to the occlusion age that was < 30 days (subacute total occlusion [STO]: 25 patients; range 1-30 days) or > 30 days (chronic total occlusion [CTO]: 58 patients; range ...
Hilger Thomas - - 2002
Magnetic resonance angiography (MRA) was performed in a thromboembolic stroke model of the rat to characterize intracranial vessel occlusion patterns and to test its predictive power for tissue recovery after recombinant tissue plasminogen activator (rt-PA) treatment. After rt-PA-treated selective middle cerebral artery (MCA) occlusion, full recanalization was observed in two ...
Cornelissen B P M - - 2002
In this study the potential role of circulatory disturbances in the pathogenesis of sesamoiditis was investigated by studying the clinical and histological effects of experimental occlusion of the sesamoidean artery, which is the main nutrient artery of the proximal sesamoid bone (PSB). For this purpose, five adult Dutch Warmblood horses ...
Dovjak Neda - - 2002
The rate of secretion of t-PA from vascular endothelial cells has been proposed as a good marker of endothelial function. Our aim was to measure the rate of in vivo t-PA antigen release from the human brachial artery and not from the combined vascular pool of the upper extremity. In ...
Rao Jayasree - - 2002
It is usually considered that occlusion of a nondominant right coronary artery is not associated with significant consequences. We report two cases of nondominant right coronary artery occlusion that presented with sudden cardiac death. Timely intervention resulted in complete resolution of the ventricular arrhythmias. This highlights the need for greater ...
Bertolotto Michele - - 2002
Our objective was to investigate prevalence and Doppler characteristics of penile cavernosal-spongiosal communications (CSC). These vessels are either anastomoses connecting the cavernosal arteries with the urethral arterial network or afferent vessels to the corpus spongiosum. Sixty-one consecutive patients underwent penile color Doppler US. Waveform changes in CSC were evaluated in ...
Steele J G - - 2002
For many dentists, occlusion carries an air of mystique. It even seems sometimes that a perverse pleasure is derived in making the whole subject more complicated than it really is. As a clinician, you need to be able to decide what you expect from your proposed restoration, and to identify ...
Kozak Matija - - 2002
For 13 patients with subacute and 4 patients with chronic occlusion, magnetic resonance imaging (MRI) of occlusive arterial thrombi in the superficial femoral artery were performed in vivo. The patients with subacute occlusion were treated with catheter-directed thrombolysis. The frequency of MR signal intensity and its distribution in thrombi were ...
Derex L - - 2002
The presence of a thrombus on initial arteriography is directly related to the baseline NIHSS score. Magnetic resonance angiography (MRA) offers a noninvasive and rapid assessment of large cerebral vessel patency. We aimed at evaluating (1) the baseline NIHSS score as a tool for predicting the likelihood of an occluded ...
Bracke F A L E - - 2002
AIMS: Occlusion of the subclavian vein resulting from pacemaker leads prohibits insertion of new leads. We describe the ipsilateral insertion of a new lead without extracting the old lead using a laser sheath in a pacemaker patient with an obstructed vein. METHODS AND RESULT: A laser sheath together with an ...
Doshi S N - - 2001
Flow-mediated dilatation (FMD) of the brachial artery assessed by high-resolution ultrasound is widely used to measure endothelial function. However, the technique is not standardized, with different groups using occlusion of either the wrist or the upper arm to induce increased blood flow. The validity of the test as a marker ...
Svedjeholm R - - 2001
Acute occlusion of the left main coronary artery (LMCA) is a rare and almost invariably fatal condition. Here, we report on heart salvage in two such cases with CABG aided by emergent retrograde reperfusion as the initial operative step. Both cases were extremely unusual. The first patient had twice survived ...
Formigari R - - 2001
The midterm follow-up of 2 patients with left ventricle-to-aorta conduit who underwent percutaneous closure with the Amplatzer device is described. Complete occlusion was achieved immediately in 1 patient. In the other patient, a trivial residual shunt was still present after 12 months, but disappeared after 18 months. Occlusion of dysfunctional ...
Shodadai S P - - 2001
PURPOSE: The aim of this clinical study was to evaluate if an arbitrary facebow registration and transfer provides significant advantages for the fabrication of an occlusal appliance in comparison with the omission of such a procedure. MATERIALS AND METHODS: For 20 fully dentate adult patients diagnosed with bruxism, two Michigan ...
Pohl T - - 2001
OBJECTIVE: To assess the effect of recanalisation on collateral flow in a case-control study in patients with and without chronic total coronary occlusions. DESIGN: In 54 patients undergoing percutaneous transluminal coronary angioplasty (PTCA) (mean (SD) age 61 (6) years), coronary collateral flow was measured by intracoronary pressure or Doppler guide ...
Gershlick A H - - 2001
Thrombolysis has reduced mortality from myocardial infarction, but effective opening of the artery with normal flow continues to be an important goal. Thrombolysis is not always as successful as it should be; alternatives include adjunctive therapy and mechanical opening of the arteries. In patients with acute coronary occlusion opening the ...
Greve G - - 2001
Abnormal loading and distension of the right ventricle may induce arrhythmia through the process of mechanoelectrical feedback. Nonetheless, the electrophysiological effects of right ventricular distension are ill-defined and the mechanisms which underpin mechanoelectrical feedback in the right ventricle are unknown. We examined the effects of changes in right ventricular load ...
Yilmaz S - - 2002
We present a successful case of percutaneous intentional extraluminal recanalization (PIER) of bilateral long superficial femoral artery (SFA) occlusions and a long iliac artery occlusion through ultrasound-guided retrograde popliteal artery punctures. To our knowledge, PIER of SFA occlusions via popliteal approach has been reported in only three cases, and subintimal ...
Speel T G - - 2001
The purpose of this work was to assess whether a single intracavernous injection (ICI) of a low dose of the combination of papaverine-phentolamine is replaceable by a high dose of the oral erectogenic agent sildenafil as mode of stimulation during pharmaco-penile duplex ultrasonography (PPDU). Eleven patients with complaints of erectile ...
Besselmann M - - 2001
Contrast agent free time-of-flight magnetic resonance angiography (TOF-MRA) was applied to the intraluminal thread occlusion model of experimental stroke in rat. It was combined with perfusion- and diffusion-weighted imaging (PWI and DWI) sequences to correlate occlusion and reopening of the middle cerebral artery with alterations in these well-established magnetic resonance ...
Hackenberg L - - 2001
We report on a case of occlusion of the left common iliac artery due to arteriosclerosis and consecutive thrombotic occlusion of the left popliteal artery in a 52-year-old man following anterior retroperitoneal interbody fusion of L4--S1. Initial symptoms included leg pain and numbness of the lateral shank, which were thought ...
Akins P T - - 2001
Based on published case series, intra-arterial thrombolysis for basilar artery occlusion reduces mortality and improves outcome even when performed after considerable delays. In contrast, the current use of intravenous thrombolysis is limited to a 3-hour time window. The longer time window for intervention in patients with basilar artery occlusion may ...
Cejna M - - 2001
PURPOSE: Retrospective analysis of the results of rt-PA thrombolysis in the treatment of acute thromboembolic occlusion of the upper limb. METHODS: Of 55 patients with demonstrated acute embolic arterial occlusion, rt-PA thrombolysis was performed on 40 occlusions in 38 patients (23 women with a mean age of 62 years, range ...
Sallam M - - 2001
The objective of this study was to highlight the incidence and predictors of re-occlusion after successful recanalization of chronic total coronary occlusions. Following successful recanalization and stent implantation in 716 coronary lesions (665 patients) with chronic total occlusion, four hundred and five (56.6%) lesions (375 patients) underwent repeat angiography within ...
Perin E C - - 2001
Chronic total occlusions in particular, completely obstructed aorto-ostial lesions are among the most challenging targets in interventional cardiology. Excimer laser is a debulking technology for revascularization of complex lesions. Treatment of total occlusions with laser angioplasty can be applied providing that a guidewire traverses the entire length of the occlusion ...
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