Mehmet Simsek

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The placenta is a regulator organ for many metabolic activities between mother and fetus. Therefore, fetal growth is directly related to the placental development. Placental development is a series of events that depend on the coordinated action of trophoblasts’ proliferation, differentiation and invasion. Studies on cell cycle related proteins which(More)
AIM Robotic spine surgery techniques provide reduced pedicle screw malposition and radiation exposure during surgery. The aim of this study is to review clinical and radiological results of robotic spine surgery. MATERIAL AND METHODS The preoperative, intraoperative and postoperative data for 27 patients were reviewed. To reveal the effect of a learning(More)
Paraganglioma (PG) is a rare tumor of the dispersed neuroendocrine system. PG derives from the embryonic sympathetic and parasympathetic nervous system. Paraganglioma is a neoplasm of the dispersed neuroendocrine system that affects a variety of anatomic sites, mainly the head and neck. It occurs commonly in the carotid body, glomus jugulare, mediastinum(More)
This article presents a retrospective study and a prospective study on spinal muscular atrophy in Oman. For the retrospective study, data were collected from neurophysiology records, from both inpatient and outpatient files. The prospective study was conducted on children as they presented to the hospital and was funded by Sultan Qaboos University. The(More)
OBJECTIVE To review the diagnoses and surgical approach characteristics of giant spinal schwannomas (GSS) patients. METHODS We reviewed the preoperative and postoperative radiological and clinical data, and the surgical aspects of 18 GSS patients who underwent surgery in the Department of Neurosurgery, Umraniye Teaching Hospital and Research State(More)
OBJECTIVE To compare the pre-procedural anxiety and depression levels of patients undergoing chorion villus sampling (CVS) and amniocentesis (AC). METHODS Patients referred to our department for fetal karyotype analysis with a positive first or second trimester screening test for aneuploidy between January 2013 to June 2015 were included. CVS and AC(More)
It has been reported that, compared with simple increased nuchal translucency, fetal cases with septated cystic hygroma (CH) are more likely to face perinatal handicaps. However, pediatric outcomes and proper prenatal counseling for this anomaly have not yet been truly defined. We performed this study to determine pregnancy and pediatric outcomes of fetuses(More)
Conjoined twins, the most striking anomaly of monozy-gosity, have always aroused extensive interest in both the medical community and the general population, owing to their rarity and unusual presentations. 1 Craniopagus twins joined at the head are uncommon malformations, found once per 2.5 million live births, and represent only 2% to 6% of conjoined(More)