Browsing by Author "Auce, Pauls"

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    Carotid Artery Stenosis Correlation with Hyperhomocysteinemia in Stroke Patient Group: a Prospective Study
    (2010-01-01) Kenina, Viktorija; Priede, Zanda; Auce, Pauls; Suna, Normunds; Millers, Andrejs; Department of Neurology and Neurosurgery
    Introduction. Stroke is the second most common cause of death worldwide and one of the major causes of long-term disability. Carotid artery stenosis is an independent risk factor for ischemic stroke and related forms of atherosclerotic vascular disease. Aim of the Study was to examine plasma homocysteine (tHcy) levels in the stroke patient's group with significant carotid artery stenosis, to determine hyperhomocysteinemia correlation with degree of carotid artery stenosis. Materials and methods. This study was prospective and all patients (n=102) included in the study were hospitalized in Pauls Stradins Clinical University hospital in Clinic of Neurology with diagnosis of acute ischemic stroke. In the group of significant carotidal stenosis we included 48 patients with various degree of stenosis ranging from 50% to total occlusion. Evaluations of stenosis of extracranial carotid arteries were done by duplex ultrasonography method. The blood of these patients was tested for homocysteine level by ELISA (IMMULITE 2000). Results. Study did not demonstrated statistically significant difference between levels of tHcy in all groups. Mean homocysteine level was not significantly higher in the symptomatic carotid stenosis patient's group. Also there were no significant differences between levels of homocysteine in patient group with different degree of stenosis. Conclusions. We found no meaningful association between a high tHcy level and extent of carotid stenosis.
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    Cytomegalovirus chronic infection as a risk factor for stroke : A prospective study
    (2010-01-01) Ķeniņa, Viktorija; Auce, Pauls; Priede, Zanda; Irbe, Inese; Vainšteina, Lana; Smeltere, Elvira; Millers, Andrejs; Rīga Stradiņš University
    Stroke is the second most common cause of death in the world and a major cause of long-term disability. Chronic infection is an independent risk factor for ischemic stroke and related forms of atherosclerotic vascular disease. The aim of our study was to compare the plasma Cytomegalovirus (CMV) immunoglobulin G antibody level in a patient and control group, and to determine the association of CMV chronic infection with ischemic stroke, and with stroke subtype. The present study does not present a cogent demonstration that cytomegalovirus chronic infection is a risk factor of stroke. Further studies are necessary to clarify the effective prophylactic measures to determine other significant risk factors for stroke.
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    The relationship between seropositivity against Chlamydia pneumoniae and stroke and its subtypes in a Latvian population
    (2011) Kenina, Viktorija; Auce, Pauls; Millers, Andrejs; Department of Neurology and Neurosurgery
    Background and Objective: Serological evidence of infection with Chlamydia pneumoniae has been associated with cardiovascular diseases, but the relationship with stroke and its risk factors remains not completely understood. The aim of this study was to determine whether serological evidence of infection with Chlamydia pneumoniae was associated with the risk of ischemic stroke and any of investigated stroke subtypes. Material and Methods: Confirmed stroke cases (n=102) were compared with gender- and agematched control patients (n=48). The patients with stroke were divided into 3 groups according to the TOAST criteria: atherothrombotic (n=36), cardioembolic (n=47), and of undetermined etiology (n=19). Plasma levels of IgG antibodies to Chlamydia pneumoniae were measured by enzymelinked immunosorbent assay. Results: There was a significant association between seropositivity to Chlamydia pneumoniae and stroke. Anti-Chlamydia pneumoniae IgG antibodies were detected in 64 case patients (62.7%) and 17 control patients (35.4%) (χ2=9.8; df=1; P=0.002). IgG seropositivity to Chlamydia pneumoniae was linked to all the analyzed etiological subtypes of stroke. Conclusion: This study showed that IgG seropositivity to Chlamydia pneumoniae was associated with stroke and all the analyzed etiological subtypes of stroke.