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    Bone wax can cause foreign body granuloma in the medulla oblongata
    (Carfax Publishing, 2004) Ates, Ö; Çayli, SR; Gürses, I
    Bone wax is commonly used in neurosurgical practice as a haemostatic and sealing agent. It is a safe agent, but may lead to adverse effects such as infection, epistaxsis, allergic reaction or foreign body granuloma. There are very few reported cases of the neurological complications of remnant bone wax in the subdural or subarachnoid space. The authors report the case of a foreign body granuloma infiltration through the medulla oblongata due to remnant bone wax in the subarachnoid space after posterior fossa decompressive surgery.
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    Mature spinal teratoma associated with thickened filum terminale -: Case report
    (Japan Neurosurgical Soc, 2005) Ates, Ö; Çayli, SR; Koçak, A; Alkan, A; Önal, Ç; Usta, U
    A 30-year-old man presented with an intradural spinal teratoma with thickened filum terminale manifesting as urinary and sexual disturbances, and low back pain persisting for 4 years. Spinal magnetic resonance imaging revealed thickened filum terminale containing a heterogeneously enhanced intradural lesion extending from the L-3 to L-4 levels and in contact with the conus medullaris. The filum terminale was incised and the tumor was totally resected. The histological diagnosis was mature teratoma consisting of three germ cell layers. The patient's complaints had completely resolved 6 months later.
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    Middle cerebral artery aneurysm associated with Behcet's disease -: Case report
    (Japan Neurosurgical Soc, 2004) Koçak, A; Çayli, SR; Ates, Ö; Saraç, K
    A 37-year-old man with Behcet's disease suffered secondary subarachnoid hemorrhage and intracerebral hematoma in the right temporal lobe caused by a ruptured aneurysm of the right middle cerebral artery. The aneurysm was successfully clipped. Aneurysm formation is common in the visceral arteries in Behcet's disease, but extremely rare in the intracranial arteries. Vasculitis may be involved in the etiology of intracranial aneurysms in patients with Behcet's disease.
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    Post-traumatic early epilepsy in pediatric age group with emphasis on influential factors
    (Springer, 2006) Ates, Ö; Öndül, S; Önal, Ç; Büyükkiraz, M; Somay, H; Çayli, SR; Gögüsgeren, MA
    Objective: Posttraumatic epilepsy in the pediatric age group is mostly seen within the first week. An acute posttraumatic epileptic fit, which may induce secondary insults, should be hindered. The aim of the study is to define the risk factors for posttraumatic early epilepsy (PTEE) and the indications for prophylactic therapy. Methods: In this survey, a total of 1,785 pediatric patients-under the age of 16-are studied. The majority of the patients (1,655) were treated in Haydarpa Numune Hospital within the years 1993-1999. The rest, which consists of 130 patients, were treated in Inonu University Turgut Ozal Medical Center between the years 2001 and 2003. The patients were categorized according to age, gender, neurological manifestations, type of trauma, cranial pathology, number and type of epileptic fits, the interval between trauma and convulsion, electroencephalogram findings, and antiepileptic therapy. All these factors were challenged due to their effect on the evolution of PTEE. Results: Only 149 cases had PTEE (8.4%). There was no correlation between gender and the incidence of PTEE. The data showed that 11.7% of the patients at or under the age of 3 (p=0.00072), 30.8% of the patients with severe head injury (Glasgow Coma Scale=3-8; Children's Coma Scale = 3-8; p=0.00000), 19.3% of the patients with depressed skull fractures (p=0.00038), 13.7% of the patients with intraparenchymal hemorrhage (p=0.0000072), and 21.6% of the patients with cerebral edema (p=0.000008) had PTEE. Only 20% of the patients with PTEE had a Glasgow Outcome Scale (GOS) of 3 or less (p=0.0000075). Conclusion: Those patients at or under the age of 3, with severe head injury, cerebral edema, intraparenchymal hemorrhage, or depressed skull fracture, have a higher incidence of PTEE. Moreover, because the GOS of these patients are prone to be worse, antiepileptic therapy in acute stage may be effective in preventing the secondary brain damage.
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    Spinal epidural abscess caused by brucellosis -: Two case reports
    (Japan Neurosurgical Soc, 2005) Ates, Ö; Çayli, SR; Koçak, A; Kutlu, R; Önal, RE; Tekiner, A
    Brucellosis is still an important public health problem in the Mediterranean countries, including Turkey, and is most probably underdiagnosed or underreported. Two rare cases of extradural brucellar granuloma causing spinal cord compression in the thoracic and cervical regions were identified by magnetic resonance imaging. The abscesses were totally excised surgically. Medical treatment was given immediately after diagnosis, but delayed neurosurgical intervention resulted in partial neurological recovery in one patient although the other showed complete neurological recovery. Abscess formation may cause myelopathy due to extradural compression of the spinal cord. Failure to correct this condition may cause irreversible impairment of motor functions. Magnetic resonance imaging should be performed periodically in patients with brucellosis and suspected vertebral involvement to monitor for epidural granuloma formation and prevent extradural cord compression.