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Browsing by Author "Vukićević, Marjana (57189443092)"

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    Anatomic and MRI bases for pontine infarctions with patients presentation
    (2022)
    Vlašković, Tatjana (55102798300)
    ;
    Brkić, Biljana Georgievski (57189445234)
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    Stević, Zorica (57204495472)
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    Vukićević, Marjana (57189443092)
    ;
    Đurović, Olivera (57788705500)
    ;
    Kostić, Dejan (8619696100)
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    Stanisavljević, Nataša (36163559700)
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    Marinković, Ivan (23980183900)
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    Kapor, Slobodan (24321238000)
    ;
    Marinković, Slobodan (7005202323)
    Objectives: There are scarce data regarding pontine arteries anatomy, which is the basis for ischemic lesions following their occlusion. The aim of this study was to examine pontine vasculature and its relationships with the radiologic and neurologic features of pontine infarctions. Materials and methods: Branches of eight basilar arteries and their twigs, including the larger intrapontine branches, were microdissected following an injection of a 10% mixture of India ink and gelatin. Two additional brain stems were prepared for microscopic examination after being stained with luxol fast blue and cresyl violet. Finally, 30 patients with pontine infarctions underwent magnetic resonance imaging (MRI) in order to determine the position and size of the infarctions. Results: The perforating arteries, which averaged 5.8 in number and 0.39 mm in diameter, gave rise to paramedian and anteromedial branches, and also to anterolateral twigs (62.5%). The longer leptomeningeal and cerebellar arteries occasionally gave off perforating and anterolateral twigs, and either the lateral or posterior branches. Occlusion of some of these vessels resulted in the paramedian (30%), anterolateral (26.7%), lateral (20%), and combined infarctions (23.3%), which were most often isolated and unilateral, and rarely bilateral (10%). They were located in the lower pons (23.3%), middle (10%) or rostral (26.7%), or in two or three portions (40%). Each type of infarction usually produced characteristic neurologic signs. The clinical significance of the anatomic findings was discussed. Conclusions: There was a good correlation between the intrapontine vascular territories, the position, size and shape of the infarctions, and the type of neurologic manifestations. © 2022 The Authors
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    Hypoplasia of the ipsilateral internal jugular vein is associated with worse outcome in acute anterior circulataion stroke; [Hipoplazija ipsilateralne unutrašnje jugularne vene je udružena sa lošijim ishodom akutnog moždanog udara u prednjoj cirkulaciji]
    (2019)
    Vukićević, Marjana (57189443092)
    ;
    Brkić, Biljana Georgievski (57189445234)
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    Dučić, Tatjana Jaramaz (57189444996)
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    Vojvodić, Ljubica (57208622507)
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    Mileusnić, Valentina (57209881729)
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    Raičević, Ranko (7007036037)
    Background/Aim. Disruption of cerebral venous blood drainage leads to cerebral venous congestion, an increase in intracranial pressure and decrease of the cerebral perfusion pressure. The exact role of the cerebral venous circulation in acute stroke is not yet known. The main blood drainage from the brain and the superficial parts of the face and neck is drained by a paired internal jugular vein (IJV). Congenital anomalies of IJV may disrupt the blood collection from the brain, which leads to congestion of the cerebral venous circulation. The aim of our study was to determine the association between the hypoplastic ipsilateral IJV and clinical outcome of patients with acute ischemic anterior circulation stroke. Methods. This prospective case series study involved the patients with the anterior circulation stroke and ultrasonographic criteria for unilateral hypoplasia of the ipsilateral IJV. Data from the 74 consecutive patients with acute anterior circulation stroke admitted to the Special Hospital for Cerebrovascular Diseases “Sveti Sava”, Belgrade, from September 2015 to January 2016 were included. Ultrasonography of IJV diameter and the collection of the hemodynamic data were performed in all patients. Neurological deficits on admission were evaluated using the National Institutes of Health Stroke Scale (NIHSS) score. The clinical outcome was assessed using the modified Rankin Scale (mRS) score (from 0 to 6) at 30 days or at discharge, whichever occurred sooner. Good and poor outcomes were defined as an mRS score of 0–2 and 3–6, respectively. Results. Ipsilateral hypoplastic IJV was diagnosed in 13 (17.6%) patients with anterior circulation stroke. In this group, 9 stroke patients (69.2%) had mRS ≥ 3. Of the remaining 4 patients with mRS ≤ 2, three had bilateral hypoplasia of IJV and one patient had smaller diameter of the IJV, but did not fulfill the ultrasonographic criteria for hypoplastic venous anomaly. Conclusions. In our case, a series of the patients with anterior circulation stroke with ultrasonographic criteria for unilateral hypoplasia of the ipsilateral IJV (on stroke side) have worse clinical outcome compared with the patients with bilateral hypoplasia. © 2019, Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.

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