نتایج جستجو برای: artery occlusion

تعداد نتایج: 245330  

Journal: :Multimedia Tools and Applications 2022

Abstract Left subclavian artery occlusion is frequently treated by stent placement. The most commented on In-Stent Restenosis excessive thrombus that squeezes the and leads to vessel occlusion. In this paper, an automatic system provided segment left arteries aortic arches from chest MRI (Magnetic Resonance Imaging) images, then identify of based gray-levels extracted arch. Experimental results...

Journal: :Circulation 1991
S W Sharkey M M Murakami S A Smith F S Apple

BACKGROUND Creatine kinase (CK) exists as three cytosolic isoenzymes, CK-MM, CK-MB, and CK-BB, and one mitochondrial isoenzyme. Animal and human observations suggest that the CK-MB content of myocardium is dynamic and may increase in response to ischemia, but the response of the myocardial CK system to chronic coronary artery occlusion is not well-defined. METHODS AND RESULTS We measured seri...

2015
Andrew Foreman John R. de Almeida Ralph Gilbert David P. Goldstein

BACKGROUND The radial forearm free flap is a workhorse free flap. The radial artery, which supplies it, is increasingly being used for endovascular access. A complication of this is radial artery occlusion. Although often asymptomatic it can compromise future free tissue transfer. CASE PRESENTATION Two patients who underwent RFFF harvest for head and neck reconstruction are presented; both of...

We present the case of a 68-year-old woman, referred to our department for critical upper limb ischemia, which had occurred a few days after homolateral surgical ligamentotomy for carpal tunnel syndrome, diagnosed and confirmed by electromyography, and performed with a brachial tourniquet. The patient was later admitted for subsequent progressive necrosis of the first three fingers of the left ...

Background and objectives: Sedentary life style and high-fat diet are one of the key causes of coronary artery disease. The aim of this study was to evaluate effects of periodic exercise and consumption of fenugreek seed extract on the expression of oxidized low-density lipoprotein (oxLDL) and reactive oxygen species (ROS) genes in patients with coronary artery occlusion. Methods: The present ...

Journal: :Heart 1999
S Agewall G A Whalley R N Doughty N Sharpe

OBJECTIVE To examine the effect of handgrip exercise induced ischaemia on non-invasive assessment of endothelial function in the brachial artery. DESIGN AND SETTING High frequency ultrasound was used to measure brachial artery diameter at rest and after reactive hyperaemia induced by forearm cuff occlusion with and without handgrip exercise induced ischaemia. SUBJECTS 10 healthy subjects, <...

Journal: :Turkish neurosurgery 2015
Xiao Qing Cheng Chang Sheng Zhou Qian Chen Guang Ming Lu

Parent artery occlusion is an effective treatment for giant intracranial aneurysms that cannot be clipped directly by surgery in patients who tolerate balloon test occlusion. However, concern remains that impaired hemodynamics after parent artery occlusion may cause delayed ischemic events in the ipsilateral hemisphere. We used computed tomography perfusion studies to evaluate the cerebral hemo...

Journal: :Journal of neurology, neurosurgery, and psychiatry 2003
M Koga Y Saku K Toyoda H Takaba S Ibayashi M Iida

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 of the insular ribbon (LIR); attenuation of the lentiform nuc...

Journal: :medical journal of islamic republic of iran 0
a garjani from the department of pharmacology, faculty of pharmacy, tabriz university of medical sciences, tabriz-51664, i.r.lran. n maleki a mahdinia h babaei

repetitive episodes of brief regional ischemia have been shown to reduce the severity of life-threatening ventricular anhythrnias and infarct size that occur during prolonged occlusion of the coronary artery. this phenomenon is known as ischemic preconditioning. during studies in anesthetized, open chest wistar rats, we accidentally observed that poorly ventilated animals had a reduced severity...

Journal: :journal of research in medical sciences 0
nahid ashjazadeh associate professor, department of neurology, shiraz neurosciences research center, department of neurology, shiraz university of medical sciences, shiraz, iran shadi shokohyar department of neurology, shiraz university of medical sciences, shiraz, iran mohammad ali ostovan department of cardiology, shiraz university of medical sciences, shiraz, iran.

neurological manifestation may complicate takayasu arteritis (ta). a 23-year-old girl with sudden onset of vision loss was admitted to hospital. her brain mri showed abnormal t2-signal hyperintensity and visual evoked potential revealed prolonged p100 latency. consequently, optic neuritis was diagnosed. a review on history of dizziness, falling, and weak pulses of upper extremities led to more ...

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