Bülent Düz

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BACKGROUND The aim of this study was to analyze the effect of a surgical management protocol and other important clinical features on the prognosis of patients who had penetrating orbitocranial gunshot injuries. METHODS Thirty-five patients (30 unilateral, 5 bilateral) who had penetrating orbitocranial gunshot injuries were analyzed. The wounds were(More)
BACKGROUND Radial nerve is the most frequently injured major nerve in the upper extremity. Proximal part of the radial nerve involvement can result from a humerus fracture, direct nerve trauma, compression and rarely from tumors. OBJECTIVES The aim of the study is to determine the clinical characteristics and electrodiagnostic findings in patients with(More)
AIM Traumatic brain injury (TBI) caused by a gunshot wound is a complex injury with a broad spectrum of symptoms and high rates of mortality and morbidity. This study presents an evaluation of TBI caused by gunshot wounds presenting at a single institution and discusses possible predictive factors for the outcome of surgical intervention. MATERIAL AND(More)
4 Objective: This is a retrospective study of a series of 45 patients older than 60s years with chronic subdural hematoma treated by two burr-hole craniostomy and closed drainage. Methods: Case records were evaluated for etiology, preoperative, postoperative and early followup neurological status, Karnofsky performance score, computerized tomography (CT)(More)
BACKGROUND During tumor removal in the endoscopic endonasal approach to pituitary adenomas with a significant suprasellar extension, the early descent of diaphragma sellae obscuring the visualization of the surgical field is a surgical challenge. OBJECTIVE To describe a simple diaphragma retraction technique to eliminate this problem. METHODS A(More)
Background: Ligation of the segmental vessels is routinely used during the anterior approach to the thoracolumbar spine. There is still an ongoing discussion whether the ligation of the segmental arteries can cause damage to the spinal cord. This study aims to evaluate the alterations in the spinal cord after ligation of the segmental vessels,(More)
INTRODUCTION The role of the endoscopic management of lesions located in the anterior cranial fossa and skull base continues to expand. MATERIALS AND METHODS An endoscopic anatomic study was conducted on cadaver specimens. 10 orbits from 5 cadaveric heads fixed in formalin were examined after the vascular structures had been perfused with colored latex(More)
The effects of hyperbaric oxygen (HBO) therapy or methylprednisolone on the oxidative status were evaluated in experimental spinal cord injury. Clip compression method was used to produce acute spinal cord injury rats. Hyperbaric oxygen was administered twice daily for a total of eight 90 min-sessions at 2.8 atmospheres. Methylprednisolone was first(More)
A catalytic system consisting of tungsten carbene generated from WCl(6) and an atomic carbon is investigated theoretically for the metathesis of 1-octene at B3LYP/extended LANL2DZ level of DFT. The ground-state geometries and charge distributions of the structures belonging to the reaction mechanism are located. Energetics for the complete set of reactions,(More)
BACKGROUND There are scarce data regarding the significance of the tumor size, hormonal activity and size of the pituitary tumor of the young; therefore, the study was designed to define the relation of the hormonal status of the large pituitary adenomas. OBJECTIVE We compared those features with tumors of the elderly (>40) with the young patients, and(More)