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Permanent URI for this collectionhttps://hdl.handle.net/11443/932

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Author: search.filters.author.Ozgen, Serdar

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    Purely extradural spinal nerve root hemangioblastomas
    (MEDKNOW PUBLICATIONS \& MEDIA PVT LTD, 2016-01-01) Aytar, Murat Hamit; Yener, Ulas; Eksi, Murat Sakir; Kaya, Behram; Ozgen, Serdar; Sav, Aydin; Alanay, Ahmet
    Spinal nerve root hemangioblastomas present mostly as intradural-extradurally. Purely extradural spinal nerve root hemangioblastoma is a very rare entity. In this study, we aimed to analyze epidemiological perspectives of purely extradural spinal nerve root hemangioblastomas presented in English medical literature in addition to our own exemplary case. PubMed/MEDLINE was searched using the terms ``hemangioblastoma,{''} ``extradural,{''} ``spinal,{''} and ``nerve root.{''} Demographical variables of age, gender, concomitant presence of von Hippel-Lindau (VHL) disease
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    Effects of Parenteral Nutritional Support with Fish-Oil Emulsion on Spinal Cord Recovery in Rats with Traumatic Spinal Cord Injury
    (TURKISH NEUROSURGICAL SOC, 2011-01-01) Emon, Selin Tural; Irban, Arzu Gercek; Bozkurt, Suheyla Uyar; Akakin, Dilek; Konya, Deniz; Ozgen, Serdar
    AIM: Aim of this study is to assess effects of parenteral nutritional support with fish-oil emulsion on spinal cord recovery in rats with traumatic spinal cord injury. MATERIAL and METHODS: For 5 days after SCI rats were received saline in group C and Omegaven in group O. Locomotor strengths (BBB scale)of animals were rated at Day 0,7,14,21,28, and 35. At Day 35 spinal cord sampling was evaluated immunohistochemically. RESULTS: BBB scores were 0 in early period after SCI was inflicted in both groups. BBB scores were progressively increased after Day 7 in both groups (p <.005). BBB scores were significantly higher in group O when compared with control group after Day7 in all times (p <.005). Neuronal injury (p <.002) and edema was much more in control group when compared with in group O (p <.005). Scores for white mater cavitation, demyelinization and vessel in growth were similar in both groups. VEGF expression in control group was higher (p=.019). CONCLUSION: At the early period of SCI fish-oil emulsion treatment in rats, its anti-inflammatory effects leaded to decrease in edema and had positive effect at the prevention of neuronal injury. We believe that nutritional support with fish-oil emulsion in patients with SCI will result in patient's better clinical outcome and increase in quality of the patient's life.
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    Intraoperative Neurophysiological Monitoring to Prevent New Neurological Deficits in Spinal Tumor Cases
    (TURKISH NEUROLOGICAL SOC, 2014-01-01) Aydinlar, Elif Ilgaz; Dikmen, Pinar Yalinay; Silav, Gokalp; Berkman, Mehmet Zafer; Elmaci, Ilhan; Ozgen, Serdar
    Objective: Intraoperative neurophysiological monitoring was carried out in patients with spinal cord tumors. These patients were retrospectively evaluated for new postoperative neurological deficits. Materials and Methods: A total of 32 spinal tumor cases (8 cervical, 14 thoracic, 10 lumbosacral), 17 male and 15 female, patients between 2-66 years of age (mean 44.1 +/- 20) operated in our center were evaluated. All of our cases were monitored with somatosensory evoked potentials (SEP) muscular motor evoked potentials (MEP) and free run electromyography. Spinal MEP (D wave), bulbocavernosus reflex (BCR) and pudendal SEP were obtained in appropriate cases. Results: Five cases presented with temporary new postoperative neurological deficits in the form of strength loss. Neurophysiological recordings of all of these patients showed either temporary or permanent deterioration during surgery. The tumor was removed completely or almost completely in 26, near-completely in 4 and partially in 2 cases and none of our cases had a new permanent deficit. Conclusion: The functional integrity of the lateral and dorsal columns of the spine can be assessed by SEP and muscular MEP recording. Additional information about the neurological tissue is given by spinal MEP, BCR and pudendal SEP in suitable cases. We did not experience any false positive or negative results in our cases and we believe that the combined use of intraoperative spinal and MEP in spinal column located tumors gives reliable information about postoperative neurological outcome.