Publications by authors named "O Barlas"

Objective: Normal pressure hydrocephalus (NPH) has clinical manifestations with different cognitive difficulties. Despite the intense interest, the change in cognitive functions after ventriculoperitoneal shunt (VPS) treatment varies widely. The aims of this study were to monitor the effect of NPH on cognition in elderly and the progress of cognitive abilities after VPS surgery.

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Background: In patients with hydrocephalus who undergo ventriculoperitoneal shunt placement, the ventricular catheter tip position is one of the most important prognostic factors influencing shunt survival. The aim of this study was to present our findings of ventriculoperitoneal shunt placement performed with intraoperative computed tomography (CT) and to evaluate the effect of intraoperative CT-based image guidance on optimal catheter positioning and overall shunt survival.

Methods: Of the study enrolled 345 patients with hydrocephalus who underwent ventriculoperitoneal shunt placement for the first time between 2008 and 2018.

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Background: Percutaneous balloon compression is a safe and effective treatment for trigeminal neuralgia. Current technique consists of penetrating the foramen ovale using a sharp 14G needle with a stylet. Difficulty of cannulation of the foramen ovale, failures of cannulation and major neurovascular complications of the procedure, although rare, may be due to the relatively large caliber of this needle and its sharp tip.

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Objective: To analyze 3T magnetic resonance imaging (MRI) findings and clinical features of patients with trigeminal neuralgia (TN) who underwent percutaneous balloon compression and to determine whether these findings had an impact on prognosis of TN.

Methods: A retrospective review of patients with TN who underwent percutaneous balloon compression in the Neurosurgery Department at Istanbul Faculty of Medicine between January 1, 2007, and January 1, 2016, was undertaken. Of 105 patients who underwent percutaneous balloon compression, 27 patients who received surgical treatment for the first time for typical TN were included in the study.

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Aim: To report our experience with a relatively large series of patients with non-traumatic non-aneurysmal subarachnoid hemorrhage (NNSAH) to identify the prognosis associated with different bleeding patterns as well as a further diagnostic work-up to determine the underlying cause.

Material And Methods: Between January 2004 and December 2014, 81 patients with angiography-negative non-traumatic subarachnoid hemorrhage (SAH) were treated at our institution. Diagnosis was confirmed with a typical history of spontaneous SAH and cranial computed tomography (CT) scan or lumbar puncture (LP).

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