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Results 151 - 200 of 781
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Jahan Reza - - 2008
An animal model of selective middle cerebral artery (MCA) occlusion is needed for evaluation of intra-arterial (IA) delivery of thrombolytic agents. We describe a technique for MCA thrombo-occlusion in the rabbit with real-time angiographic documentation of occlusion and thrombolytic recanalization. After femoral artery cutdown, a microcatheter was advanced from the ...
Guo Z - - 2008
BACKGROUND AND OBJECTIVES: This study was designed to investigate the potential existence of the response of neurons in the parafascicular nucleus of the thalamus to acute myocardial ischaemia induced by selective coronary artery occlusion and the effects of midazolam on the response in rats. METHODS: The left anterior descending branch ...
De Reuck J - - 2009
BACKGROUND AND PURPOSE: The outcome of patients with occlusion by cervical dissection (OCD) is considered to be better than of those with atherosclerotic occlusion (ATO) of cervical arteries. The present observational retrospective study investigates whether there are also differences in the occurrence of seizures between OCD and ATO patients. METHODS: ...
Sakamoto Shigeyuki - - 2008
BACKGROUND: Endovascular proximal parent artery occlusion has been performed for VA dissection. We describe a case that presented with headache associated with transient enlargement of contralateral VA after VA occlusion. CASE DESCRIPTION: A 54-year-old man presented with constant occipital headache on the left due to left VA dissection. Proximal parent ...
Huang Jen-Hsuan - - 2008
We report a case of thrombotic occlusion of left external iliac artery during the procedure of anterior lumbar interbody fusion. The diagnosis was confirmed by computed tomography angiography. The patient also developed severe rhabdomyolysis postoperatively. In spite of receiving emergent thromboendarterectomy, the patient expired on postoperative day 3. This report ...
Sylaja P N - - 2008
BACKGROUND: The outcome of vertebrobasilar ischemia depends on the clinical presentation and the presence or absence of vascular occlusion. The aim of our study was to analyze the CT angiography (CTA) predictors of outcome in patients with suspected vertebrobasilar ischemia. METHODS: We studied patients with suspected acute vertebrobasilar ischemia between ...
Otsuka Yoshinobu - - 2008
BACKGROUND AND PURPOSE: The aim of this study is to investigate whether angiographic demarcation of an occlusive lesion may predict successful or failed result of intra-arterial thrombolysis in acute middle cerebral artery (MCA) occlusion. METHODS: We reviewed retrospectively the angiography and clinical data of acute MCA occlusion patients who underwent ...
Park K-B - - 2008
PURPOSE: To test the hypothesis that a proximal arterial occlusion has a protective effect on the progression of distal arterial disease, assessed by distal runoff resistance score (DRRS). MATERIALS AND METHODS: One hundred and nineteen patients (median age 64 y, male 96%) with a unilateral iliac and/or femoral arterial occlusion ...
Hussain Farrukh - - 2007
Percutaneous intervention for complex coronary chronic total occlusions (CTO) remains challenging in spite of the improvement in wiring techniques and devices available today. The antegrade wiring approach remains the most common method for crossing and intervening in chronic total occlusions. Distal intraluminal wire placement is the most critical step in ...
Eskola Markku J - - 2007
BACKGROUND: Rapid identification of a proximal occlusion site of a major coronary artery is of paramount importance in the care of myocardial infarction (MI). It is increasingly recognized that routine electrocardiogram (ECG) can be used for that purpose, provided that expert interpretation is available. Computer-based signal analysis has potential to ...
Guglielmini Carlo - - 2008
Aortic occlusion is a rare vascular disorder in the dog. This report describes the clinical feature of an aged Boxer with complete occlusion of the abdominal aorta caused by an intraluminal thrombus. Angiography evidenced a collateral circulation, represented by the internal thoracic artery, the cranial epigastric artery and the caudal ...
Tran David N - - 2007
Curved planar reformation allows comprehensive visualization of arterial flow channels, providing information about calcified and noncalcified plaques and degrees of stenoses. Existing semiautomated centerline-extraction algorithms for curved planar reformation generation fail in severely diseased and occluded arteries. We explored whether contralateral shape information could be used to reconstruct centerlines through ...
Joy R - - 2007
Upper limb digital arterial occlusion is uncommon. We present the case of a 47-year-old man with an ischaemic right middle finger (dominant hand) due to trauma from carrying a heavy plastic shopping bag. Duplex scanning revealed no proximal source of emboli. An angiogram demonstrated occlusions in the medial and lateral ...
Hobeika Mark J - - 2008
Critical limb ischemia (CLI) is most commonly the result of arterial occlusive disease, specifically atherosclerotic plaque formation and rupture within the infrainguinal arteries. The physiological response to CLI is partial limb reperfusion via the distinct processes of angiogenesis and arteriogenesis. Matrix metalloproteinases (MMPs) are extracellular matrix-remodeling enzymes that play an ...
Grundmann S - - 2007
Pharmacological attempts to stimulate the growth of collateral arteries (arteriogenesis) are evolving towards a new treatment option for patients with vascular occlusive diseases. This enlargement of small pre-existing anastomoses towards large conductance arteries takes place independent of local oxygen tension and is driven by changes in luminal shear stress and ...
Kallmes David F - - 2007
BACKGROUND AND PURPOSE: We report a preclinical study of a new endoluminal device for aneurysm occlusion to test the hypothesis that the device, even without use of intrasaccular coil placement, could occlude saccular aneurysms without causing substantial parent artery compromise or compromise of adjacent, small branch arteries. METHODS: The Pipeline ...
Grigoriadis Savvas - - 2007
BACKGROUND AND PURPOSE: Acute basilar artery occlusion is an infrequent but potentially fatal cause of stroke, both in adults and children. We present our experience with a 6-year-old child and we investigate the rationality for late treatment of acute basilar occlusion in children. METHODS: We report the case of a ...
Hartman J - - 2007
A prototype endovascular electromechanical clot-extraction device was fabricated using a combination of shape memory polymer and shape memory nickel-titanium alloy (nitinol). Five embolic vascular occlusions were created in 4 rabbits by injecting thermally coagulated blood through a 4F catheter in the common carotid artery. Angiography immediately after clot injection showed ...
Kostanian V - - 2007
A patient with acute top of the basilar syndrome clinically was found to have only a small basilar artery filling defect but complete occlusion of the artery of Percheron. Intra-arterial thrombolysis resulted in favorable neurologic outcome. To our knowledge, this is the only case of angiographically proved and treated artery ...
Motarjeme Amir - - 2007
PURPOSE: To report a single-center clinical experience with ultrasound-enhanced thrombolysis in the treatment of both arterial and venous thromboses. METHODS: From January 2005 to June 2006, 33 patients (23 men; age range 39-90 years) with 36 occlusions were treated using ultrasound-enhanced thrombolytic therapy for acute and chronic arterial and venous ...
Enomoto Y Y Department of Neurosurgery, Graduate School of Medicine, Gifu University, Gifu, - - 2007
Acute basilar artery (BA) occlusion is typically associated with poor outcome; however newer diagnostic and treatment modalities have the potential to improve prognosis. In this study, six patients with acute BA occlusion were followed and the effectiveness of local intra-arterial fibrinolysis (LIF) and subsequent percutaneous transluminal angioplasty (PTA) with a ...
Farma Jeffrey M - - 2007
BACKGROUND: Celiac artery occlusion occurs in a small percentage of the population. Identifying this is critical in planning for pancreaticoduodenectomy. We reviewed 332 patients treated with pancreaticoduodenectomy, and identified 14 patients with celiac artery occlusion. METHODS: Between 1988 and 2006, 14 (4%) of 332 patients treated with pancreaticoduodenectomy had median ...
Wang M-Q - - 2007
The association between teeth loss and temporomandibular disorders (TMD) is still inconclusive. A kind of secondary changes of the occlusion after teeth lose called the tightly locked occlusion (TLO), defined as the occluding contact that delivers angled occlusal force on the drifted neighbour and/or the tipped antagonists of the lost ...
Yu Wengui - - 2007
Acute basilar artery occlusion portends high risk of stroke and death. Thrombolysis or endovascular therapy has been limited to patients who present within hours of symptom onset. Without recanalization, acute basilar artery occlusion almost always results in death or severe disability. We report a case of basilar artery occlusion and ...
Guthikonda Sasidhar - - 2007
BACKGROUND: Use of upper-arm arterial occlusion to induce reactive hyperemia, and endothelium-dependent flow-mediated dilation (FMD) of the brachial artery, induces greater conduit vessel dilatation than lower-arm occlusion. However, brachial artery ischemia after upper arm arterial occlusion may make this approach unreliable. We studied whether upper or lower arm occlusions differ ...
Ross I B - - 2007
Parent artery occlusion (PAO) is still indicated at times for the treatment of craniocervical vascular disease. Because of the unavailability of silicone and latex balloons in the United States, costly combinations of detachable and pushable coils have been required to achieve PAO. We describe our experience with a simple and ...
Sharma V K - - 2007
Although common carotid artery (CCA) occlusions are rare, acute clinical presentations vary from mild to devastating strokes primarily due to tandem occlusions in the intracranial arteries. Three patients with acute CCA occlusions were treated with systemic tissue plasminogen activator (TPA). Blood pressures were kept at the upper limits allowed with ...
Nandeesh B
Acute aortoiliac occlusion is an unusual but potentially catastrophic condition causing acute limb ischemia and associated with early and high rates of mortality and morbidity. It is caused by either embolic occlusion of the infra renal aorta at the bifurcation or beyond or thrombosis of the abdominal aorta and its ...
Jim Man-Hong - - 2007
BACKGROUND: Lead V(4R) faces the right ventricular free wall; it also reflects ischemia in the posterolateral wall lying opposite and manifests as ST-segment depression. HYPOTHESIS: The aim of this study was to evaluate the usefulness of V(4R) ST-segment depression in distinguishing proximal from distal left circumflex artery occlusion in acute ...
Wung Shu-Fen SF The College of Nursing, University of Arizona, Tucson, AZ 85721-0203, USA. - - 2007
Differentiating occlusion of the circumflex branch of the left coronary artery (also called the circumflex artery) from occlusion of the right coronary artery is often difficult because either may be associated with a pattern of acute inferior myocardial infarction on the electrocardiogram. To determine if an inexpensive 18-lead electrocardiogram can ...
Graziani L - - 2007
OBJECTIVES: Arteriographic lesions of diabetic subjects with critical limb ischemia (CLI) and ischemic foot ulcer were reviewed retrospectively, to provide new criteria for stratification of these patients on the basis of their vascular involvement. PATIENTS: In 417 consecutive CLI diabetic subjects with ischemic foot ulcer undergoing lower limb angiography, lesions ...
Tissot C - - 2007
We report the case of a 14 year-old girl with a pulmonary atresia with VSD and multiple aortopulmonary collaterals who underwent a successful complementary occlusion of a large collateral vessel using an Amplatzer vascular plug after a previously failed attempt of occlusion with a coil. The percutaneous procedure, performed from ...
Li X - - 2007
Translocation of apoptosis-inducing factor (AIF) from the mitochondria to the nucleus can play a major role in neuronal death elicited by oxidant stress. The time course of nuclear translocation of AIF after experimental stroke may vary with the severity of injury and may be accelerated by oxidant stress associated with ...
Pellanda C - - 2007
BACKGROUND/AIMS: Occlusion by covering the skin with an impermeable wrap enhances skin hydration, affects drug absorption and can induce the formation of a drug reservoir within the stratum corneum. This is desired in local therapy with topical corticosteroids. The aim of the study was to investigate the effect of occlusion ...
Jones W Tracey WT - - 2006
Individuals with chronic lower extremity pain or lifestyle limiting claudication often undergo angiography prior to intervention. Occasionally initial angiographic findings are not indicative of a true pathologic process. Described below are two such cases. Both of the patients described had iliofemoral atherosclerotic disease with arteriographic suggestion of popliteal artery occlusion. ...
Stahel Philip F - - 2006
The technique of a long posterior myocutaneous flap described by Ernest M. Burgess in the late 1960s is one of the most frequent procedures for below-knee amputations worldwide. To account for some potential problems associated with this procedure in patients with occlusive arterial disease, Lutz Brückner developed a modified amputation ...
Laganà D - - 2006
PURPOSE: Our aim is to report our experience in the endovascular treatment of steno-occlusions of the infrarenal abdominal aorta. MATERIALS AND METHODS: We selected 19 patients (mean age 66.3 years, range 45-80): five with complete occlusion of the infrarenal aorta and both common iliac arteries (CIAs), four of which were ...
Saqqur Maher - - 2006
BACKGROUND: Stringent transcranial Doppler (TCD) criteria for diagnosing occlusion are needed for more reliable TCD performance at bedside in the acute stroke setting. SUBJECTS AND METHODS: At three academic stroke centers, we performed TCD examination for patients with symptoms of cerebral ischemia who underwent digital subtraction angiography (DSA). We used ...
Townshend Jennifer - - 2006
AIM: To compare the performance of pulse oximeters during movement and brachial artery occlusion. METHODS: Three machines (MasimoSET, using MasimoSET LNOP Pdt paediatric sensor, Mars 2001 using Novametrix paediatric sensor no. 6455 and Nellcor 595 using Nellcor 595 Oximax-P paediatric sensor and Nellcor 595 MAX-FAST adhesive forehead reflectance sensor) were ...
Bergmann Caroline E - - 2006
It has been suggested that monocytes/macrophages represent the pivotal cell type during early adaptive growth of pre-existent arterial anastomoses toward functional collateral arteries (arteriogenesis) upon arterial occlusion. This hypothesis was supported by previous studies providing evidence that elevation of the peripheral monocyte count, increased monocyte survival (e.g., granulocyte macrophage-colony stimulating ...
Ferrari Robert - - 2006
BACKGROUND: Excess cerumen (earwax) in the external auditory canal is associated with symptoms of earache, fullness in the ears, and diminished hearing. These symptoms, and tinnitus, are commonly associated with whiplash injury. METHODS: Eighty-six whiplash patients were examined to determine if there was a correlation between symptoms of earache, fullness ...
Lee H - - 2006
Neuro-vasculo-Behçet's disease is considered a venous vessel disease generally in the form of cerebral venous thrombosis. Arterial involvement has been rarely reported. We present a patient with neuro-Behçet's disease who developed reversible basilar artery occlusion. To the best of our knowledge, this is the first case of neuro-Behçet's disease presenting ...
Wang Chen Xu - - 2006
OBJECTIVE: Embolic occlusion of the middle cerebral artery (MCA) leads to distal perfusion deficits as the vessel is recanalized. However, the mechanism for the perfusion deficits is not fully understood. The authors examined whether distal movement of fragments formed from the original thrombus contributes to the perfusion deficits. METHODS: In ...
Jacobs Donald L - - 2006
Treatment of chronic total occlusions of the iliac and femoral-popliteal vessels with endovascular techniques has become the standard approach for shorter lesions and is increasingly applied to long, complex arterial occlusive lesions. As the complexity of the arterial occlusions increases, the demands for technical skills and devices needed to successfully ...
Rodríguez J - - 2006
The presentation of two cases of veno-occlusive priapism, in patients of 36 and 58 years, in whom the different medical and surgical techniques employed, failed. The suspicion that high-flow priapism had been provoked by said surgical intervention was confirmed by bilateral arteriographs of the pudendal artery. The treatment, selective embolisation ...
Hoya K K Department of Neurosurgery, Fuji Brain Institute and Hospital, Shizuoka, - - 2006
We review four cases of posterior cerebral artery (PCA) aneurysm, of which three showed intolerance of parent artery occlusion. In two, balloon test occlusion (BTO) indicated poor opacification of the PCA branches from the anastomoses, and therefore, permanent occlusion was not attempted.
Tamaki Masahiro - - 2006
Using monochromatic synchrotron radiation, we performed microangiography in C57BL/6J mice and investigated their vasculature after unilateral and bilateral carotid artery occlusion. Bilateral occlusion of the carotid artery was made by a ligation of the left common carotid artery followed by a ligation of the right internal carotid artery (ICA) two ...
Ochiai Masahiko - - 2006
The success of percutaneous intervention for chronic total occlusion depends mainly on crossing the lesion with a wire. This report deals with the principles and the technical tips of intravascular ultrasound-guided wiring for chronic total occlusion, which can be divided into two trategies.The first is "identification of the site of ...
Yin Shankai - - 2006
HYPOTHESIS: Triple semicircular canal occlusion will eliminate rotatory stimulation to the vestibular peripheral system (as it blocks endolymphatic fluid movement) and therefore release rotatory vertigo attack. This surgery is safe in ears with endolymphatic hydrops. BACKGROUND: Semicircular canal occlusion has been used as an alternative treatment of intractable benign paroxysmal ...
Rees J S - - 2006
The role of occlusal loading in the development of non-carious cervical lesions is becoming increasingly prominent. It is suggested that high occlusal loads result in large stress concentrations in the cervical region of the teeth. These stresses may be high enough to cause disruption of the bonds between the hydroxyapatite ...
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