İstanbul Kent Üniversitesi Araştırma ve Akademik Performans Sistemi
DSpace@Kent, İstanbul Kent Üniversitesi’nin bilimsel araştırma ve akademik performansını izleme, analiz etme ve raporlama süreçlerini tek çatı altında buluşturan bütünleşik bilgi sistemidir.
Güncel Gönderiler
Öğe Türü:Öğe, Risk factors for nonunion of ulnar styloid fractures associated with distal radius fractures(Prusa Medical Publishing, 2025) Kaya, Emre; Akdemir, Nurtaç Alper; Geçer, Ali; Konukoğlu, LeventObjectives: A major complication of ulnar styloid fractures (USFs) associated with displaced distal radius fractures (DRFs) is nonunion, which can result in pain and instability of the distal radioulnar joint (DRUJ). This study aimed to identify the risk factors influencing the healing of USFs in cases of displaced DRFs, when treated using different methods - either surgically with plate-screw fixation, or conservatively with closed re duction and a plaster cast. Methods: A total of 41 patients with USFs associated with DRFs, treated either surgically or conservatively, were retrospectively evaluated. Fractures were classified based on the treatment modality (surgical/conserva tive), demographic data, and radiographic characteristics. The Fernandez classification system was used to cat egorize DRFs. USF displacement was stratified into two groups: displacement >2 mm and <2 mm. Union and nonunion rates were compared across all parameters. Results: Of the 41 cases included, 12 DRFs were managed surgically with plate-screw fixation, while 29 were treated conservatively with closed reduction and casting. Union was achieved in 35 cases, whereas nonunion was observed in 6. A statistically significant correlation was found between USF displacement >2 mm and nonunion. No significant association was observed between nonunion and other variables, including treatment modality, age, sex, laterality, or fracture classification. Conclusions: The development of nonunion in USFs accompanying DRFs is not significantly influenced by treatment modality, age, sex, fracture classification, or side of involvement. However, a displacement of the USF greater than 2 mm is associated with a significantly increased risk of nonunion.Öğe Türü:Öğe, Turkish validity and reliability of the systems thinking scale(Hacettepe University, 2025) Açıkgöz, GizemAim: The aim of the study is to evaluate the validity and reliability of the Turkish version of the System Thinking Scale. Materiel and Methods: The methodological study was conducted with 369 health professionals working in Istanbul between February - July 2024. The data were collected with descriptive information form and the Systems Thinking Scale. SPSS 24.0 program was used to evaluate the data, and the validity and reliability tests were conducted. Results: The Kaiser Meyer Olkin coefficient of the scale was found 0.87, and the scale was suitable for factor analysis. The factor loadings of the items varied between 0.50 and 0.89, and the total variance explained by the scale was 55.48%. The scale consisted of a single dimension. The fit indices of the scale were χ²/df = 4.68, RMSEA = 0.09, NFI = 0.90, NNFI = 0.90, SRMR = 0.08, and CFI = 0.95. The AVE was 0.535, CR was 0.957, ICC was 0.99, and α was 0.95. Conclusions: The Turkish version of the system thinking scale consists 20 items and a single dimension. The scale, which demonstrated good psychometric properties in Turkish, can be used to evaluate systems thinking within health systems. Implication for nursing practice/management or policy: It is thought that the use of the scale will create awareness for ensuring system security in health systems and contribute to the orientation of considering the system as a whole.Öğe Türü:Öğe, Assessment of renal dosimetry and nephrotoxicity in patients with neuroendocrine tumors treated with 177Lu-DOTATATE(Akdeniz University, 2025) Aydın, Armağan; Yeyin, Nami; Demir, MustafaAim: This study aimed to conduct dosimetry and evaluate renal toxicity based on calculated kidney doses and glomerular filtration rates (GFR) in 22 patients diagnosed with neuroendocrine tumors following the administration of 5550 MBq (150 mCi) of 177Lu-DOTATATE radiopharmaceutical. Materials and Methods: Patients, aged between 35 and 80, including 14 males and 8 females, underwent 68Ga-DOTATATE PET/CT scans to identify lesions and subsequently received treatment planning. Dosimetry of ¹⁷⁷Lu-DOTATATE was performed using whole-body imaging based on scans acquired at 4, 24, 48, and 72 hours post-administration. Results: According to our results, the average number of treatment cycles was 5±1, with an average total kidney dose of 24.32±3.5 (Gy), average total BED dose of 27.9±2.5 (Gy), average whole-body dose of 1.83±0.4 (Gy), and average GFR of 69.95±12.2. The correlation between kidney doses and GFR was calculated as R2=0.7945. The significance of the relationship between total kidney doses and total kidney BED doses was evaluated using the Mann-Whitney U test (p=0.0244). Conclusion: The study found that as the number of treatment cycles increased, the total kidney dose also increased; however, rapid declines in GFR were not observed, and none of the treated patients reached toxic doses in the kidneys.Öğe Türü:Öğe, Yetişkinlerde İC kullanımına geçiş: Adaptasyon ve memnuniyet sürecine ilişkin nitel bir araştırma(Pleksus Bilişim Teknolojileri A.Ş., 2025) Men, Asya Fatma; Küçük Ceyhan, Ayşenur; Alabay, Erhan; Türe, LeylaAmaç: Bu çalışma, işitme cihazı (İC) kullanımına geçen bireylerin deneyimlerini anlamayı ve adaptasyon ile memnuniyet süreçlerini etkileyen faktörleri incelemeyi amaçlamaktadır. Materyal ve Yöntemler: Fenomenolojik araştırma deseni kullanılarak yürütülen bu niteliksel çalışmada, veriler yarı yapılandırılmış görüşmeler yoluyla toplanmıştır. Çalışmaya, postlingual sensörinöral işitme kaybı olan ve en az bir yıldır işitme cihazı (İC) kullanan 18-55 yaş aralığındaki 11 birey katılmıştır. Yüz yüze gerçekleştirilen görüşmelerin ses kayıtları alınarak, içerik analizi yöntemiyle incelenmiş ve temalar belirlenmiştir. Veri analizi iki aşamada gerçekleştirilmiştir: İlk aşamada ses kayıtları yazılı metne dökülerek belgelenmiş, ikinci aşamada ise bu metinler analiz edilerek ana temalar oluşturulmuştur. Bulgular: Çalışma bulguları, İC kullanımının işitsel algı, duygusal iyilik hali ve sosyal etkileşimde önemli iyileşmeler sağladığını göstermiştir. Katılımcılar, İC kullanmadan önce konuşmaları anlamada güçlük çektiklerini, sosyal hayattan çekildiklerini ve özgüven eksikliği yaşadıklarını belirtmiştir. İC kullanmaya başladıktan sonra iletişim becerilerinde artış, sosyal katılımda yükselme ve yaşam kalitesinde iyileşme gözlemlenmiştir. Ancak, ses amplifikasyonuna alışma, çevresel gürültüler ve cihazın görünürlüğü gibi konularda başlangıçta bazı adaptasyon zorlukları yaşandığı bildirilmiştir. Ayrıca, kısa batarya ömrü ve özellikle gürültülü ortamlarda konuşmayı anlama güçlüğünün kullanıcı memnuniyetini etkileyebileceği belirlenmiştir. Sonuç: İC kullanımının bireylerin işitsel, duygusal ve sosyal iyi oluşlarına katkı sağladığını, ancak adaptasyon sürecinde bireysel destek ve teknik düzenlemelerin önemli olduğunu göstermektedir.Öğe Türü:Öğe, Evaluation of the effect of eccentric nailing on femoral diaphyseal union delay(Scientific Journal Publishing, 2025) Erdoğan, Özgür; Kaya, Emre; Maraşlı, Mert; Adiyeke, Levent; Yanık, Hakan Serhat; Ketenci, İsmail Emre; Tuna, SerkanObjectives: In this study, we aimed to investigate whether there was a relationship between deformity at the fracture line/eccentric placement of the nail, and union time (UT) in isthmal diaphyseal femoral fractures treated with intramedullary nails. Patients and methods: Between September 2017 and December 2020, a total of 61 patients (38 males, 23 females; median age: 47 years; range, 23 to 62 years) with closed femoral shaft fractures who underwent antegrade nailing were retrospectively analyzed. The following parameters were examined: (i) amount of angulation in the fracture line (AFL), (ii) varus/valgus of the fracture line (VAFL), (iii) amount of deviation of the distal tip of the nail from the femoral notch (DDT), (iv) medial lateral orientation of the distal nail relative to the notch (MLON), (v) number of fracture parts (NFP), and (vi) UT. Results: The causes of injury were high-velocity traffic accidents in 42 patients and falls in 19 patients. The median surgical delay was 4.5 (range, 2 to 8 days). The median follow-up time was 37 (range, 12 to 57) months. There was a moderate, statistically significant and positive correlation between UT and AFL, DDT, and NFP (r=0.486, p<0.001). The difference in UT according to MLON (p=0.002) was statistically significant. Conclusion: Our study results suggest that impaired weight-bearing force and translational force may cause impaired healing. Thus, angulation of the fracture line and eccentric nail placement may delay fracture union. We recommend using bold screws to ensure that there is no deformity in the fracture line and to fully center the nail inside the distal bone.
