Search Results
Results 401 - 450 of 1332
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Fukada Sandra Y - - 2004
BACKGROUND: The first response to perivascular injury is observed in the adventitial layer. The purpose of this study was to determine the time course of vascular reactivity alterations after collar injury in rats. We also analyzed the relation between adventitial layer injury and vascular responsiveness to vasoconstrictor agents. METHODS: Wistar ...
Kiliç S - - 2004
OBJECTIVES: We compared the clinical and hemodynamic results following surgical repair of traumatic brachial artery injury using two different techniques micro- and macrovascular repair. MATERIALS AND METHODS: This was a retrospective study of 27 patients who had sustained penetrating, clean cut injuries of the brachial artery. Macrovascular techniques and a ...
Sandhu NavParkash S - - 2004
A palpable axillary artery pulse is a prerequisite for introducing an arterial line. The close proximity of four nerves to the artery increases the chance of nerve injury, especially in anesthetized patients. The highly colonized entry site results in frequent infection. Approaching the axillary artery through the pectoral muscles by ...
Chougle A - - 2004
Blunt arterial injury is usually caused by high velocity trauma and can result in intimal dissection. We present a case of a professional footballer who sustained an intimal tear of the posterior tibial artery following a minor eversion injury of the ankle. The injury was noticed because of the physical ...
Blunt Lynn W LW - - 2004
Injury to the superior mesenteric artery (SMA) during nephrectomy is a rare but potentially catastrophic complication. SMA injury during nephrectomy most commonly occurs with large tumors or bulky lymphadenopathy, with inadvertent injury or mistaken ligation of the SMA instead of the renal artery. Failure to recognize and repair an SMA ...
Kinsella Michael G - - 2004
Smooth muscle cells (SMC) of the rat carotid arterial media proliferate and migrate in response to injury during the formation of a neointima. The interaction of fibroblast growth factor (FGF-2), which is released at the site of injury, with heparan sulfate proteoglycans (HSPGs) is necessary to induce signaling, which elicits ...
Nalbandian M M - - 2004
When peripheral vascular injuries present in conjunction with life threatening emergencies, controlling hemorrhage from a peripheral blood vessel may take initial priority, however, sacrificing a limb to preserve life is a well-established dictum. The use of intravascular shunts has allowed arterial and venous injuries to be controlled and temporized while ...
Singh R R - - 2004
BACKGROUND: Blunt internal carotid artery (ICA) injury is rare but undiagnosed can have disastrous clinical consequences. AIM: To report a late presentation of blunt ICA injury in a young male following a road traffic accident. RESULT: A 16-year-old male presented 11 days following a head injury with a unilateral Horner's ...
Enkhbaatar Perenlei - - 2004
Acute respiratory distress syndrome is a major complication in patients with thermal injury. The obstruction of the airway by cast material, composed in part of fibrin, contributes to deterioration of pulmonary gas exchange. We tested the effect of aerosol administration of tissue plasminogen activator, which lyses fibrin clots, on acute ...
Stewart Lygia - - 2004
Because most bile duct injuries involve the common hepatic duct, the right hepatic artery, which is nearby, can also be injured. Reports on the frequency and significance of right hepatic artery injury (RHAI) associated with bile duct injury are sparse but suggest that RHAI increases mortality and decreases the success ...
Mestre Barceló José L JL Unidad de Hemodinámica y Cardiología Intervencionista, Instituto de Cardiología, Hospital Ramón y Cajal, Madrid, - - 2004
Acquired coronary-cameral fistula is an uncommon disorder. We describe a 50-year-old man with rheumatic valvular disease who required emergency mitral and aortic valve replacement due to Staphylococcus aureus acute infective endocarditis. He underwent further surgical interventions due to bleeding and prosthetic dehiscence. During follow-up, a continuous parasternal murmur was noted. ...
Albåge Anders - - 2004
A potentially serious but rare complication of mediastinoscopy procedures is acute damage to any of the great vessels in the region of the distal trachea and carina. We report a case of serious hemorrhage from a mediastinoscopic biopsy-injury to the posterior aspects of the right pulmonary artery (RPA), which required ...
Isogai N - - 2004
This study was undertaken to characterize the relative degrees of arterial and venous trauma after graded avulsion injuries. Rat femoral arteries and veins were subjected to reproducible avulsion injuries using forces of between 60 and 220g. Thrombotic occlusion occurred at lower avulsion forces in veins than in arteries. Histologic and ...
Li Jian-Ming - - 2004
Smooth muscle cell proliferation is a major pathophysiologic factor in injury-induced neointimal hyperplasia and recurrent stenosis. We have demonstrated that recombinant human thrombomodulin (rTM) inhibits thrombin-induced arterial smooth muscle cell proliferation in vitro. The purpose of this study was to investigate the effect of rTM on neointimal hyperplasia in vivo. ...
Lu Xiao - - 2004
The intimial thickening that occurs in human and animal atherogenesis can be induced by mechanical injury to the endothelium. The objective of the present study was to develop a new method to induce arterial endothelial injury without damage to the media for future investigations of mechanisms of intimal thickening and ...
Milas Zvonimir L - - 2004
Ten children, aged 4 to 14 years, sustaining blunt arterial trauma from motor vehicle collisions (6), bicycle accidents (2), and falls (2) were identified over a 10-year period. The arteries injured included the common iliac (3), abdominal aorta (2), carotid (2), brachial (2), and the subclavian, renal, and femoral artery ...
Parfyonova Yelena - - 2004
Urokinase-type plasminogen activator (uPA) has been implicated in neointima formation and arterial lumen narrowing after angioplasty. To determine the specificity of the action of uPA on vessel remodelling after arterial injury we compared the effects of the recombinant urokinase- and tissue-type plasminogen activators on vessel morphology, cell migration and proliferation. ...
Ducasse Eric - - 2004
BACKGROUND: Recent reports describe spontaneous dissections and aneurysms after coronary and peripheral artery irradiation for the prevention of intimal hyperplasia. We investigated histological changes and the vasomotor reaction in the vascular wall after external radiation for the prevention of intimal hyperplasia in rabbits. MATERIALS AND METHODS: The aorta was experimentally ...
Davison Brian D - - 2004
Acute arterial emergencies can arise from direct traumatic injury to the artery or be spontaneous. This article emphasizes the various presentations of arterial emergencies. These include acute arterial occlusions; excessive bleeding; and hematoma formation caused by penetrating arterial wall injuries, pseudoaneurysms, and arteriovenous fistulas. The broad category of arterial occlusions ...
Darçin Osman Tansel - - 2004
Morphological vessel injury after clamping has been an important problem in vascular surgery. Although various techniques have been employed to occlude a vessel during a surgical procedure, a complete, atraumatic occlusion method has not yet been developed. In the present study, we describe use of a novel pressure-controlled and balloon-jawed ...
Busquéts Antonio R - - 2004
BACKGROUND: The radiologic study of choice for evaluation of traumatic arterial injuries is conventional arteriography, but it poses the risks of an invasive procedure. Computed tomographic arteriography (CTA) is emerging as a new way to study arterial anatomy, with the additional advantages of being noninvasive and a technique that allows ...
Mellema Jonathan W - - 2004
BACKGROUND: Using an endoscopic approach, lateral sphenoid air cells and terminal branches of the internal maxillary artery often can be accessed through the pterygomaxillary fossa: however, injury to the greater palatine nerve (GPN) can occur if the anatomy of this region is not understood clearly. This study was undertaken to ...
Allaire Eric - - 2004
OBJECTIVE: To investigate the efficiency of endovascular smooth muscle cell (VSMC) seeding in promoting healing and stability in already-developed aneurysms obtained by matrix metalloproteases (MMPs)-driven injury. SUMMARY BACKGROUND DATA: VSMCs are instrumental in arterial healing after injury and are in decreased number in arterial aneurysms. This cellular deficiency may account ...
Khoynezhad Ali - - 2004
Transmediastinal gunshot wounds are infrequent but life-threatening injuries. The course of the projectile and the bullet track often is unpredictable. Prompt and specific diagnostic and therapeutic interventions are necessary to quickly identify and repair potentially life-threatening injuries to the heart, great vessels, and the aerodigestive tract. Multiple diagnostic algorithms exist ...
Hoschtitzky J A - - 2004
A patient with a mass lesion suggestive of a bronchial carcinoma in the right upper lobe was taken to theatre for a right upper lobectomy. The lower lobe artery, which was smaller than usual, was inadvertently divided. The arterial blood supply to the lower lobe was repaired with azygous vein ...
Yagubyan Marineh - - 2004
Axillary artery injury from blunt trauma to the shoulder is uncommon. Fracture of the neck of the humerus is a rare cause of injury to the axillary artery. Four cases of axillary artery thrombosis from humeral neck fracture are reported. Each of the first 2 patients presented with a pulseless ...
Leta Rubén R Sección de Imagen Cardíaca y Unidad de Hemodinámica, Hospital de la Santa Creu i Sant Pau, Barcelona, - - 2004
Non-invasive coronary artery angiography by 16 multidetector-row spiral computed tomography is a novel diagnostic tool whose reliability is still unclear. The aim of our study was to compare this technique with invasive coronary angiography. A total of 31 selected patients were examined with both angiographic methods. Non-invasive studies were performed ...
Duncan Walter J - - 2004
An acute injury to a coronary artery was recognized during the surgical construction of the Fontan circulation. Surgical manipulation of the site of injury was not successful in restoring normal myocardial blood flow. A stent was therefore placed intraoperatively under direct vision, with restoration of normal coronary arterial flow acutely ...
McArthur Claudie S - - 2004
Several factors may limit the success of conventional operative therapy for traumatic arterial injuries. In particular, the inaccessibility of the vascular lesion, anatomic distortion, and the inherent problems associated with operating in a traumatized and often contaminated field are among these limiting factors. As a result, endovascular therapy has emerged ...
Janssen J P - - 2004
Talc is a mineral defined as hydrated magnesium silicate in its pure form. It is mined in open pits throughout the world. For induction of chemical pleurodesis, talc has been shown to be superior to all other products. The safety of the use of talc for pleurodesis is subject to ...
Payton Thomas F - - 2004
We present the case of an 11-year-old male who had a dissection of his left internal carotid artery following a rather innocuous mechanism of injury. Although this phenomenon is documented in the medical literature, it remains a relatively rare event following blunt injury to the head and neck (0.3% occurrence ...
Finkelstein Ariel - - 2004
Intracoronary brachytherapy (ICBT) effectively reduces restenosis but is associated with late thrombosis. Since tissue factor (TF) is an important mediator of arterial thrombosis, we tested the hypothesis that ICBT results in persistently augmented TF expression. Coronary arteries from 12 pigs were randomized to: control (C; no injury), oversized balloon injury ...
Horibe Eishun - - 2004
BACKGROUND: Sarpogrelate, a serotonin receptor blocker, increases collaterals via a platelet anti-aggregation effect and/or vasodilatation. However, a recent report showed a preconditioning effect of sarpogrelate that enhances the translocation of PKC-epsilon of cardiomyocytes, followed by opening of the mitochondrial K(ATP) channel via inhibition of serotonin release from platelets during ischemia, ...
Amundsen Astrid H - - 2004
This paper presents an evaluation of the effects on road safety of new urban arterial roads in Oslo, Norway, and a synthesis of evidence from similar studies that have evaluated the safety effects of new urban arterial roads in other cities. A before-and-after study was made of four urban arterial ...
Blaufox Andrew D - - 2004
Coronary injury during radiofrequency ablation is a rare but n. potentially life-threatening complication that has been reported for attempted elimination of accessory pathways. This is the first report of coronary artery injury during slow pathway ablation for AV nodal reentrant tachycardia. Manifest signs of injury may be transient or nonexistent ...
Ioskevich N N - - 2004
The chronic disorder of arterial circulation in the lower extremities due to the atherosclerotic injuries of the femoral-popliteal-tibial arteries was accompanied by the shift of the blood prooxidant-antioxidant balance towards more active free radical oxidation and by a depletion of antioxidant system. After restoring arterial blood flow in the ischemic ...
Cheng Xian Wu - - 2004
The matrix-degrading activity of several proteases are involved in the accelerated breakdown of extracellular matrix associated with vascular remodeling during the development of atherosclerosis and vascular injury-induced neointimal formation. Previous studies have shown that the potent elastolytic cysteine proteases, cathepsins S and K, are overexpressed in atherosclerotic lesions in human ...
Calligaro Keith D - - 2003
To our knowledge, ours is the largest single-center experience with diagnosis and management of acute arterial hemorrhagic and limb-threatening ischemic complications associated with total hip arthroplasty (THA) and total knee arthroplasty (TKA). Between 1989 and 2002, 23,199 TKA procedures (13,618 total, 11,953 primary, 1665 revision) and THR procedures (9581 total, ...
Veerasingam Devendran - - 2003
A case of transection of the origin of the innominate artery with an associated head injury following blunt thoracic injury is presented. The patient had been the unrestrained driver in a road traffic accident. Investigation demonstrated embolic damage to the brain parenchyma. Early surgical repair employing cardiopulmonary bypass and hypothermic ...
Isbister G K - - 2003
A 67-year-old female suffered envenoming by a Sydney funnel-web spider (Atrax robustus), complicated by ST elevation and elevated troponin levels consistent with an acute myocardial injury. She was treated primarily with funnel-web spider antivenom, admission to intensive care and initial respiratory support for acute pulmonary oedema. The mechanism by which ...
Westphal Martin - - 2003
Carboxyhemoglobin (COHb) formation is triggered by the inducible isoform of heme oxygenase (HO-1) catalyzing carbon monoxide (CO) production through breakdown of heme molecules, exposure to CO or both. In the setting of CO poisoning, COHb is regarded as a reliable marker characterizing both severity of injury and efficacy of treatment ...
Asensio Juan A - - 2003
HYPOTHESIS: Iliac vascular injuries incur high mortality. DESIGN: Retrospective 100-month study (January 1, 1992, through April 30, 2000). PATIENTS: One hundred forty-eight patients with 185 iliac vessel injuries. OUTCOME MEASURES: Survival and mortality, analyzed by univariate and logistic regression. RESULTS: Admission mean +/- SD systolic blood pressure was 81 +/- ...
Kindelberger David - - 2003
Hyperextension of the head can cause injury to the vessels at the base of the brain. These lacerations are believed to be caused by stretching of the vessels due to the abrupt movement of the head and rotational acceleration of the brain within the cranium, and they usually occur in ...
Furuse M - - 2003
BACKGROUND: We evaluated cerebral metabolic change during brain hypothermia with intravascular perfusion of cooled crystalloid solution using an extracorporeal cooling-filtration system and cerebroprotective effects of this hypothermia on brain injury in an animal model. METHOD: Microdialysis probes were implanted into the bilateral parietal cortices. A cold-induced brain injury was produced ...
Kim William J H - - 2003
Monocyte chemoattractant protein (MCP)-1 is abundant in smooth muscle cells (SMC) and macrophages of atherosclerotic plaques and in the injured arterial wall. MCP-1 and its receptor, CCR2, are important mediators of macrophage accumulation and atherosclerotic plaque progression. We have recently reported that CCR2(-/-) mice have a approximately 60% decrease in ...
Witz Misha - - 2004
Complete dislocation of the knee is a rare injury, and is frequently associated with injuries to other structures in the popliteal fossa. Prompt recognition of associated popliteal artery disruption and early revascularization is paramount for successful and functional results. The necessity for emergency vascular reconstruction markedly complicates an already difficult ...
Schneider Francis - - 2003
OBJECTIVE: We report fatal cases of multifocal ischemic injuries occurring in patients awaiting liver transplantation after severe concomitant paracetamol and cyclooygenase inhibitors self-poisoning. DESIGN AND SETTING: Case report in an intensive care unit. PATIENTS: In addition to signs of acute liver failure with a systemic inflammatory response syndrome, these three ...
Sternbergh W Charles WC - - 2003
Endovascular treatment of blunt vascular trauma has been infrequently reported. A 27-year-old man was crushed between a fork-lift truck and a concrete platform. The physical examination was remarkable for hemodynamic stability, significant lower abdominal ecchymosis and tenderness, obvious pelvic fracture, and gross hematuria. Vascular examination revealed no femoral pulses, no ...
Jackson Mark R - - 2003
Upper extremity arterial injury resulting in hand and digit ischemia can occur in athletes who perform repetitive, high-stress, overhead arm motions. The initial presentation of these injuries often mimics the more common musculoskeletal injuries found in these athletes, and therefore, a high index of suspicion is essential to establish the ...
Ozisik Kanat - - 2003
BACKGROUND: Pseudoaneurysms (PsAns) of the popliteal and tibioperoneal arteries are very rare and occur as a late complication after arterial injury. This study was undertaken to describe the management of PsAns of the popliteal and tibioperoneal arteries after gunshot injuries in a civilian vascular surgical unit with a large trauma ...
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