Yazar "Koc, O." seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • Küçük Resim Yok
    Öğe
    Complete Ossification of the Superior Transverse Scapular Ligament in an Turkish Male Adult
    (Soc Chilena Anatomia, 2013) Buyukmumcu, M.; Seker, M.; Ozbek, O.; Akin, D.; Koc, O.; Aydin, A. D.; Salbacak, A.
    Scapula has three margins and angles and located posterolateral of thorax. One of the anatomical structures of scapula is suprascapular notch located medial to coracoid process base. Suprascapular notch can be seen in different shapes and depths. Suprascapular notch is surrounded by transverse scapular ligament which is a short and strong ligament. Suprascapular notch creates an osteofibrosis passage with this structure within suprascapular nerve passes. It has been reported that this osteofibrosis structure can intirely or partially ossify. All lesions of nerves occured in course as result of exposure to compression, tension and bending are called entrapment neuropathy. Like other peripheral nerves, suprascapular nerve can be exposed to compression while passing suprascapular notch. As a result of this compression suprascapular entrapment neuropathy may occur. There are direct trauma, repetitive microtrauma, neurit, progressive compressive lesions in suprascapular entrapment neuropathies etiology. A suprascapular notch taken foramen shape can be a predisposing factor to entrapment neuropathy. In the retrospective screening from Necmettin Erbakan University, Meram Medical Faculty, Department of Radiology archive, a male patient at age 68 with suprascapular notch variation has been detected. This patient's right suprascapular notch had became foramen by an osseous bridge. Diameters of foramen has been measured as 5.27 mm transverse 6.48 mm vertical. We believe having detailed knowledge of suprascapular notch is significant as a possible course of back and shoulder pain is entrapment of suprascapular nerve in suprascapular notch causing nerve paralyses, and it will give a right direction to clinicians in surgical practices.
  • Küçük Resim Yok
    Öğe
    Radiotherapy-induced Hypopituitarism in Nasopharyngeal Carcinoma: the Tip of an Iceberg
    (Johann Ambrosius Barth Verlag Medizinverlage Heidelberg Gmbh, 2015) Ipekci, S. H.; Cakir, M.; Kiyici, A.; Koc, O.; Artac, M.
    Background: Radiation-induced hypopituitarism is an important late complication of cranial radiotherapy in children and adults. The purpose of this cross-sectional study was to evaluate the effects of radiotherapy on pituitary function in adult nasopharyngeal carcinoma patients. Methods: Pituitary function was evaluated in 30 patients after cranial radiotherapy for nasopharyngeal carcinoma. Somatotroph and corticotroph axes were assessed by insulin tolerance test while gonadotroph and thyroid axes were evaluated by basal pituitary and end organ hormone levels at 10-133 months after radiotherapy. Results: At least one hormonal disorder was observed in 28 (93%) patients after radiotherapy. 26 (87%) patients had one or more anterior pituitary hormone deficiencies. The rates of pituitary hormone deficiencies were 77% for growth hormone, followed by adrenocorticotropic hormone (73%), thyroid-stimulating hormone (27%) and gonadotropins (7%). Hyperprolactinemia was present in 13 (43%) patients. Conclusions: Radiation-induced hypopituitarism is more common than expected in patients with nasopharyngeal carcinoma.
  • Küçük Resim Yok
    Öğe
    Rapid percutaneous nephrostomy catheter placement in neonates with the trocar technique
    (Elsevier Masson, 2017) Ozbek, O.; Kaya, H. E.; Nayman, A.; Saritas, T. B.; Guler, I.; Koc, O.; Karakus, H.
    Purpose: The purpose of this study was to assess the efficacy of a modified percutaneous nephrostomy procedure for grade III-IV hydronephrosis in neonates. Material and methods: Eleven neonates (five girls, six boys) with a mean age of 13.7 days +/- 9.9 (SD) (range, 4-28 days) with pronounced hydronephrosis had percutaneous nephrostomy using a modified procedure. In all patients, percutaneous nephrostomy was performed with a trocar catheter under ultrasound guidance and then the catheter was placed into the collecting system without prior dilatation. Results: Technical success was achieved in all patients. There were no major procedure-related complications. There was no perirenal hematoma on control ultrasound examinations and no hematuria was observed after the procedure. The median drainage time was 75 days (range: 42-120 days). Two children had urinary tract infection, which was controlled by using antibiotics. Conclusion: The trocar nephrostomy is a practical and feasible method, which can be used for neonates with grade III-IV hydronephrosis. (C) 2016 Editions francaises de radiologie. Published by Elsevier Masson SAS. All rights reserved.