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Featured researches published by Seçil Özkan.


Developmental Medicine & Child Neurology | 2006

Prevalence of cerebral palsy in Turkish children between the ages of 2 and 16 years

Ayse Serdaroglu; Ali Cansu; Seçil Özkan; Sabahat Tezcan

The aim of this cross-sectional study was to determine the prevalence of cerebral palsy (CP) among children in Turkey between the ages of 2 and 16 years. Samples were selected from cities, towns, districts, and villages using the cluster sampling method; 41,861 children were selected. Data was collected by parental interview and physical examination. One hundred and eighty-six children were identified with CP. The prevalence of CP was determined as 4.4 per 1,000 live births and included postnatally acquired CP. Origin of CP was classified as prenatal in 49 (26.6%), perinatal/neonatal in 34 (18.5%), postnatal in 11 (5.9%), and unclassifiable in 90 participants (48.9%; data was unobtainable for two individuals). Type of CP was diplegia in 39.8% of children, hemiplegia in 28%, tetraplegia in 19.9%, ataxia in 5.9%, and dyskinetic in 6.4%. Prenatal factors were seen more frequently in the groups with a high socioeconomic status while perinatal factors were encountered more often in those with a low socioeconomic status (p<0.05). Place of residence and sex had no significant effect on the prevalence of CP (p>0.05). This cross-sectional study shows that the prevalence of CP in Turkey is higher than that in developed countries but the aetiology is probably similar. Although the high prevalence of CP in Turkey could originate from an increased level of obstetric and neonatal problems, the lack of a possible aetiological factor in approximately half the children suggests that the high level might also be due to other factors, such as genetic disorders.


Journal of Child Neurology | 2004

Prevalence of Epilepsy in Turkish Children Between the Ages of 0 and 16 Years

Ayse Serdaroglu; Seçil Özkan; Kursad Aydin; Sabahat Tezcan; Sefer Aycan

The aim of this cross-sectional study was to determine the prevalence of epilepsy in Turkey among children between the ages of 0 and 16 years. The study population consisted of 24,773,569 children living in Turkey. Because the prevalence of childhood epilepsy is reported to be 0.001 to 1% in the literature, the sample size was determined as 48,260, with 0.05 error type I and 0.10 error type 2 (power 0.90), and the effect size was 2. With the cluster sampling method, samples were selected from cities, towns, districts, and villages, and 46,813 (97%) children were reached. The study questionnaire contained sections with individual informational questions and questions for the selection of suspected epilepsy cases and physical examination results. The epilepsy classification was designed according to the classification of the International League Against Epilepsy (ILAE). The prevalence of epilepsy was determined as 0.8%; 55.2% of the subjects with epilepsy were grouped as generalized, 39% as partial, and 5.8% as unidentified. Age, place of residence, route of delivery, place of delivery, and social and economic status had no statistically significant effect on the development of epilepsy. Male gender, preterm, and post-term delivery increased the risk of developing epilepsy. Early diagnosis and treatment of epilepsy, as well as the education of health workers and families, are very important. (J Child Neurol 2004;19:271-274).


The Breast | 2003

Significance of serum vascular endothelial growth factor, insulin-like growth factor-I levels and nitric oxide activity in breast cancer patients

Coskun U; Nazan Günel; Banu Sancak; Uǧur Günel; Erhan Onuk; Orhan Bayram; Erdal Yilmaz; Sakine Candan; Seçil Özkan

Vascular endothelial growth factor (VEGF) is used to evaluate the angiogenic activity in breast carcinoma. Nitric oxide (NO) and insulin-like growth factor-I (IGF-I) are also implicated in breast tumorigenesis, including angiogenesis. We measured serum VEGF, IGF-I and nitrate+nitrite levels in 38 patients with metastatic and 23 with nonmetastatic breast cancer and in 16 controls. Serum VEGF and IGF-I levels were higher in patients with metastatic disease than in those with nonmetastatic disease or in controls (P<0.001). Serum nitrate+nitrite levels were higher in patients with metastatic and nonmetastatic disease than in controls (P<0.001). Patients with visceral metastasis and local metastasis had higher serum VEGF and nitrate+nitrite levels than patients with bone metastasis (P<0.05). In the metastatic disease group, there was a positive correlation between serum VEGF levels and nitrate+nitrite levels (r=0.436, P<0.05). Within the group with nonmetastatic disease, premenopausal patients had higher serum IGF-I levels than did postmenopausal patients (P<0.001). NO may involve an angiogenic process that is stimulated by VEGF in breast carcinoma. Larger studies are required to clarify these suggestions.


Pharmacoepidemiology and Drug Safety | 2009

Self-medication with antibiotics: questionnaire survey among primary care center attendants.

Mustafa N. Ilhan; Elif Durukan; Sevil Özger Ilhan; F. Nur Aksakal; Seçil Özkan; Mehmet Ali Bumin

The aim of this study was to determine the frequency and reasons for self‐medication with antibiotics within the last 12 months among primary healthcare center attendants aged 18 or over, in Ankara.


International Journal of Clinical Practice | 2007

The effect of the baby-friendly hospital initiative on long-term breast feeding

A. Duyan Çamurdan; Seçil Özkan; Deniz Yüksel; F. Pasli; Figen Şahin; Ufuk Beyazova

The aim of this study was to evaluate the effects of ‘baby‐friendly hospital initiative’ (BFHI) on breast feeding.In the four consecutive months after BFHI in Gazi University Hospital (November 2002–February 2003), breast feeding status until the second year of life in 297 babies, born in the same hospital was compared with the values of 258 babies born before BFHI (November 2001–February 2002).The exclusive breast feeding rate in the first 6 months was higher in the babies born after BFHI. Cox regression analysis revealed that BFHI increases the duration of breast feeding 1.5 times. At the end of the second year, cumulative rate of breast feeding was higher in the group after‐BFHI (p = 0.0036).The rate of breast feeding was increased by BFHI implementation.


Cephalalgia | 2003

Magnetic resonance imaging of patients with cervicogenic headache

Ozlem Coskun; S üçler; Basak Karakurum; Ht Atasoy; T Yildirim; Seçil Özkan; Le Inan

Cervicogenic headache (CH) is a syndrome which is postulated to originate from nociceptive structures in the neck or head. The anatomical neck or head structures that are responsible for the pain in CH have not been clearly identified, but the pain in these patients probably originates from the structures of the cervical spine. In this study, cervical MRI were studied in 22 patients with cervicogenic headache and 20 control patients who did not have any disease which may effect the bone and muscle structures of cervical region. MRI imaging of cervical vertebra showed a disc bulging in 10 (45.4%) out of 22 patients with CH and in 9 (45.0%) of 20 controls (P > 0.05). The distribution of pathological lesions in patients and controls were not significantly different (P > 0.05). As a result, MRI may not be an adequate method to detect pathological findings underlying the aetiology of CH such as nerve roots, intervertebral joints and periosteum.


Nephrology | 2005

Relationship between sleep complaints and proinflammatory cytokines in haemodialysis patients

Yasemin Erten; Oguz Kokturk; Aydan Yuksel; Sehri Elbeg; Tansu Ulukavak Çiftçi; Hatice Pasaoglu; Seçil Özkan; Musa Bali; Turgay Arinsoi; Sukru Sindel

Background:  Sleep complaints are common in end‐stage renal disease. We aimed to investigate the relationship between sleep‐related complaints and inflammatory cytokines in haemodialysis (HD) patients, and also the effects of HD on sleep patterns and cytokine levels.


American Journal of Clinical Oncology | 2003

Prognostic value of serum IL-18 and nitric oxide activity in breast cancer patients at operable stage

Nazan Günel; Ugur Coskun; Banu Sancak; Oğuz Hasdemir; Mustafa Sare; Orhan Bayram; Gokhan Celenkoglu; Seçil Özkan

Interleukin-18 (IL-18) is a multifunctional cytokine that was previously termed interferon-&ggr;-inducing factor. It has been suggested that serum IL-18 level may be used as a prognostic factor in some cancer types. Nitric oxide is a potent biologic molecule involved in the pathogenesis of cancer. In this study, we measured serum IL-18 and nitrate + nitrite levels in 56 patients with nonmetastatic breast cancer and 14 control subjects. Serum IL-18* and nitrate + nitrite** levels were significantly higher in patients with breast cancer when compared to the control subjects (*p < 0.05, **p < 0.001). Serum IL-18 levels were significantly higher in patients whose tumor size was greater than or equal to 5 cm when compared to patients whose tumor size was less than or equal to 2 cm (p < 0.05). Patients who were axillary lymph node negative (ALN) had lower serum IL-18 levels when compared to patients with positive ALN (p < 0.001). Serum IL-18 levels were significantly higher in patients with stage IIB or IIIA when compared to patients with stage I or IIA (p < 0.05). There was no significant difference in serum nitrate + nitrite levels in terms of age, tumor stage, estrogen receptor, and menopausal and ALN status (p > 0.05). In conclusion, serum IL-18 level may be a useful marker to predict prognosis of patients with breast cancer in complete remission after surgery. Long-term follow-up is required to clarify this hypothesis.


Journal of Family Violence | 2010

The Prevalence of Domestic Violence Against Women Among a Group Woman: Ankara, Turkey

Taner Akar; F. Nur Aksakal; Birol Demirel; Elif Durukan; Seçil Özkan

This study determines the frequency of the spousal domestic violence among 1,178 married women who applied to some first level medical institutions located in Ankara, the capital of Turkey. 77.9% (n = 918) of the women who participated in the study have stated that they have been exposed to at least one of the types of spousal violence during their lifetime. The most reported type of domestic violence suffered by women throughout their lives is economic violence (60.4%). The prevalence of controlling behaviors, emotional violence, physical and sexual violence are 59.6%, 39.7%, 29.9% and 31.3% respectively.


Seizure-european Journal of Epilepsy | 2007

Prevalence of some risk factors in children with epilepsy compared to their controls

Ali Cansu; Ayse Serdaroglu; Deniz Yüksel; Vehbi Doğan; Seçil Özkan; Tugba Hirfanoglu; Nesrin Şenbil; Şebnem Soysal; Aysu Duyan Camurdan; Y.K. Yavuz Gürer

AIM The goal of this case-control study was to identify the significance of certain risk factors for epilepsy in Turkey. METHOD A total of 805 cases, aged 1-16 years, followed-up for epilepsy at the Pediatric Neurology Department and a control group consisting of 846 age-matched cases without epilepsy were included in the study. The risk factors examined were gender, neurological impairment, febrile convulsion, head trauma, central nervous system infections, parental consanguinity, family history of epilepsy, prenatal and natal risk and newborn jaundice. Data regarding the investigated epilepsy risk factors were obtained through a questionnaire via personal interviews and the medical records and were assessed using univariate and multivariate analysis. RESULT Univariate analysis showed an increased risk for epilepsy with a history of atypical febrile seizure (21.97-fold), severe and moderate head injury (27.76- and 7.09-fold respectively), CNS infection (4.76-fold), history of epilepsy in first-, second- or third-degree relatives (6.42-, 3.09- and 2.66-fold, respectively), presence of maternal hypertension (4.31-fold), an apgar score < or =6 at any time (7.78-fold) and neonatal jaundice (3.12-fold). Abnormal neurological signs increased the epilepsy risk 5.92 times in univariate analysis and 30.26 times in multivariate analysis. CONCLUSION The most important risk factors for epilepsy in this study were neurological impairment, history of atypical febrile seizures, severe head injury and a low apgar score. Other important risk factors were moderate head trauma and a history of epilepsy in the family.

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