نتایج جستجو برای: شاخص cvi

تعداد نتایج: 75956  

Journal: :Blood 1995
P Aukrust A M Svardal F Müller B Lunden R K Berge S S Frøland

We have previously shown chronic immune activation and enhanced generation of reactive oxygen species in common variable immunodeficiency (CVI). In the present study, we examined levels of glutathione, the dominant intracellular thiol, that play an important protective role against oxidative and inflammatory stress in plasma and in monocytes and lymphocyte subsets in 20 CVI patients and in 16 h...

Journal: :AJNR. American journal of neuroradiology 2001
K P Forbes J G Pipe J E Heiserman

BACKGROUND AND PURPOSE The pathogenesis of cerebral venous infarction (CVI) remains controversial, with uncertainty over whether cytotoxic edema plays a role. Recent animal studies have shown that cytotoxic edema reliably occurs in acute CVI and precedes the onset of vasogenic edema. Our hypothesis was that cytotoxic edema would also occur in acute human CVI and would be detectable as an area o...

Journal: :Hippokratia 2010
N Kozeis

Cerebral visual impairment (CVI) is one of the leading causes of severe visual impairment in childhood. This article was written to highlight any new knowledge related to cerebral visual impairment in childhood.The international literature was searched to describe the type of visual, oculomotor and / or visuo-perceptual disturbances and to discuss the prognosis. CVI children show a wide range o...

Journal: :The British journal of ophthalmology 1999
R Huo S K Burden C S Hoyt W V Good

BACKGROUND/AIMS To evaluate prevalence, aetiology, prognosis, and associated neurological and ophthalmological problems in children with cortical visual impairment (CVI). METHODS The records of 7200 outpatients seen in the paediatric ophthalmology practice over the past 15 years were reviewed in order to compile data concerning CVI. In addition, the authors devised and applied a system for gr...

2014
Daniëlle GM Bosch F Nienke Boonstra Michèl AAP Willemsen Frans PM Cremers Bert BA de Vries

BACKGROUND To gain more insight into genetic causes of cerebral visual impairment (CVI) in children and to compare ophthalmological findings between genetic and acquired forms of CVI. METHODS The clinical data of 309 individuals (mainly children) with CVI, and a visual acuity ≤ 0.3 were analyzed for etiology and ocular variables. A differentiation was made between acquired and genetic causes....

2016
Sylvie Chokron Gordon N. Dutton

Cerebral visual impairment (CVI) has become the primary cause of visual impairment and blindness in children in industrialized countries. Its prevalence has increased sharply, due to increased survival rates of children who sustain severe neurological conditions during the perinatal period. Improved diagnosis has probably contributed to this increase. As in adults, the nature and severity of CV...

2018
Magdalena Budzyń Maria Iskra Wojciech Turkiewicz Zbigniew Krasiński Bogna Gryszczyńska Magdalena Paulina Kasprzak

BACKGROUND Although the endothelial dysfunction is considered to be implicated in the pathogenesis of chronic venous insufficiency (CVI) the endothelial status in patients with venous disorders is still not fully evaluated. Therefore the aim of the study was to measure the concentration of selected markers of endothelial dysfunction: von Willebrand factor (vWf), soluble P-selectin (sP-selectin)...

Journal: :Annals of vascular surgery 2005
Susan Tsai Anna Dubovoy Reid Wainess Gilbert R Upchurch Thomas W Wakefield Peter K Henke

The aim of this study was to characterize patients requiring hospitalization for severe chronic venous insufficiency (CVI) at the local and national levels and to analyze factors related to primary amputation. An administrative database (Nationwide Inpatient Sample, 1988-2000) and a single institution (1992-2000) were reviewed using the International Classification of Diseases, 9th ed., Clinica...

2017
Pedro Lopes-Pimentel Maylin Koo Javier Bocos Antoni Sabaté

BACKGROUND The composite variability index (CVI), derived from the bispectral analysis (BIS), has been designed to detect nociception; however, there is no evidence that bilateral BIS and CVI show intrapatient reproducibility or variability. METHODS We conducted an observational study in patients who underwent for total knee arthroplasty. A BIS Bilateral Sensor was applied and continuously re...

Journal: :Stroke 2000
S S Ho C Metreweli

BACKGROUND AND PURPOSE A noninvasive reliable technique that can reveal cerebral blood flow volume could be a valuable tool in screening programs for stroke prevention. In diagnostic ultrasonography, spectral Doppler imaging (SDI) is popular among sonologists and vascular technologists to estimate blood flow volume despite its documented inaccuracy and the availability of the more accurate tech...

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