Person: ÖZGÜR, EMRAH GÖKAY
Loading...
Email Address
Birth Date
Research Projects
Organizational Units
Job Title
Last Name
ÖZGÜR
First Name
EMRAH GÖKAY
Name
7 results
Search Results
Now showing 1 - 7 of 7
Publication Metadata only Tocilizumab in hospitalized patients with severe COVID-19 pneumonia: A single-center observational study(2023-01-01) ÖZGÜR, EMRAH GÖKAY; KAYA H., ÖKSÜZLER KIZILBAY G., ILGAZLI A. H., ÖZGÜR E. G.Publication Open Access Upstaged from cT1a-c to pT2a lung cancer, related to visceral pleural invasion patients, after segmentectomy: Is it an indication to complete resection to lobectomy(2023-06-09) ÖZGÜR, EMRAH GÖKAY; Lula Lukadi J., Mariolo A. V., Ozgur E. G., Gossot D., Baste J., De Latour B., Seguin-Givelet A.Segmentectomy may be indicated for T1a-cN0 non-small cell lung cancer. However, several patients are upstaged pT2a at final pathological examination due to visceral pleural invasion. As resection is usually not completed to lobectomy, this may raise issue of potential worse prognosis. The aim of this study is to compare prognosis of visceral pleural invasion upstaged cT1N0 patients operated on by segmentectomy or lobectomy.Publication Open Access Evaluation of the effects of the toilet training process on the child's quality of life(2023-02-16) ÖZGÜR, EMRAH GÖKAY; Kostekci Y. E., Baskan S., Topcu S., Kose S. K., Ozgur E. G., Orhon F.Background: Toilet training is a significant developmental milestone for children. During the process of toilet training, voiding and defecation problems may develop, which have a major adverse impact on quality of life. The aim of this study was to assess the process to voiding and defecation problems and evaluate that these issues influenced the children’s' quality of life. Methods: The children included in the study were followed up at the Ankara University School of Medicine, Department of Social Pediatrics. Participants were surveyed via a questionnaire that included sociodemographic features, the toilet training process, and the pediatric quality of life inventory. The results were analyzed using IBM SPSS 11.5. Results: The study included 177 children and their parents. There was no correlation between the parents' age, sociodemographic features and the timing of the start of toilet training. In the children included in the survey, voiding problems were found in 55.6% and defecation problems in 23.6%. Urinary retention during play and nocturnal enuresis were more frequent in the children trained at 25–36 months of age. The self-reported quality of life scores in children with voiding problems and with both voiding and defecation problems were lower than those in children who have not had any problems. Conclusions: Even if the child has been toilet trained, it is essential to investigate daily urination and defecation habits at every follow-up visit, even if just briefly, and to discuss with families when a physician should be consulted.Publication Open Access Comparing the performance of medical students, ChatGPT-3.5 and ChatGPT-4 in biostatistics exam: Pros and cons as an education assistant(2023-11-01) ÖZGÜR, EMRAH GÖKAY; BEKİROĞLU, GÜLNAZ NURAL; Asker Ö. F., Özgür E. G., Eriç A., Bekiroğlu G. N.Studies have shown that the level of knowledge in biostatistics among medical students is lower than expected. This situation calls for the need to implement new methods in biostatistics education. The aim of this study is to evaluate the feasibility of ChatGPT as an education assistant in biostatistics. ChatGPT is a natural language processing model developed by OpenAI. It provides human-like responses to questions asked by users and is utilized in various fields for gaining information. ChatGPT operates with the latest GPT-4 model, while the previous version, GPT-3.5, is still in use. In this study the biostatistics performance of 245 Marmara University School of Medicine students was compared to ChatGPT-3.5 and ChatGPT-4 using an exam covering basic biostatistics topics. According to findings, ChatGPT-3.5 achieved 80% success rate in the exam, while ChatGPT-4 achieved 100% success rate. In contrast, the students achieved 67.9% success rate. Furthermore, ChatGPT-3.5 only recorded 33% success rate in questions requiring mathematical calculations, while ChatGPT-4 achieved 100% success rate in these questions. In conclusion, ChatGPT is a potential education assistant in biostatistics. Its success has increased significantly in the current version compared to the previous one. Further studies will be needed as new versions are releaPublication Metadata only The importance of biostatistics and scientific research in evidence-based medicine(2022-12-16) ÖZGÜR, EMRAH GÖKAY; Özgür E. G., Bekiroğlu G. N.Publication Open Access Evaluation of risk factors and survival rates of patients with early-stage breast cancer with machine learning and traditional methods(2024-10-01) ÖZGÜR, EMRAH GÖKAY; BEKİROĞLU, GÜLNAZ NURAL; ÖZGÜR E. G., Ulgen A., Uzun S., BEKİROĞLU G. N.Background: This article is aimed to make predictions in terms of prognostic factors and compare prediction methods by using Cox proportional hazards regression analysis (CPH), some machine learning techniques and Accelerated Failure Time (AFT) model for post-treatment survival probabilities according to clinical presentations and pathological information of early-stage breast cancer patients. Material and methods: The study was carried out in three stages. In the first stage, the CPH method was applied. In the second stage, the AFT model and in the last stage, machine learning methods were applied. The data set consists of 697 breast cancer patients who applied to Marmara University Hospital oncology clinic between 01.01.1994 and 31.12.2009. The models obtained by using various parameters of the patients were compared according to the C index, 5-year survival rate and 10-year survival rate. Results and conclusion: According to the models obtained as a result of the analyses applied, MetLN and age were obtained as a significant risk factor as a result of CPH method and AFT methods, while MetLN, age, tumor size, LV1 and extracapsular involvement were obtained as risk factors in machine learning methods. In addition, when the c-index values of the handheld models are examined, it is obtained as 69.8 for the CPH model, 70.36 for the AFT model, 72.1 for the random survival forest and 72.8 for the gradient boosting machine. In conclusion, the study highlights the potential of comparing conventional statistical methods and machine-learning algorithms to improve the precision of risk factor determination in early-stage breast cancer prognosis. Additionally, efforts should be made to enhance the interpretability of machine-learning models, ensuring that the results obtained can be effectively communicated and utilized by clinical practitioners. This would enable more informed decision-making and personalized care in the treatment and follow-up processes for early-stage breast cancer patients.Publication Open Access A novel predictor of persistent ocular hypotony after pars plana vitrectomy for rhegmatogenous retinal detachment: The initial intraocular pressure difference between the eye with RRD and the fellow eye(2025-01-01) ÖZGÜR, EMRAH GÖKAY; Tokuç E. Ö., KARABAŞ V. L., Seyyar S. A., Emengen E. B., Güray A. B., Dinçer K. A., Önder C. D., ÖZGÜR E. G.Purpose: To evaluate the predictive value of initial intraocular pressure difference of the detached and fellow eyes of patients with complex rhegmatogenous retinal detachment on postoperative persistent ocular hypotony. Methods: This retrospective observational study included 538 eyes of 538 unilateral complex rhegmatogenous retinal detachment patients with a proliferative vitreoretinopathy grade of C-1 or higher, treated with silicone oil endotamponade following pars plana vitrectomy. The patients were divided into Group A (patients having silicone oil removal without ocular hypotony; n=504) and Group B (patients with persistent ocular hypotony following silicone oil removal [n=8, 23.5%] and with retained silicone oil [n=26, 76.5%] due to the risk of persistent ocular hypotony; total n=34). Ocular hypotony was defined as an intraocular pressure of <6 mmHg on two or more occasions. Patients’ demographics, including age, sex, and follow-up time, and ocular characteristics, including ocular surgical and trauma history, initial and final best-corrected visual acuity, intraocular pressure and initial intraocular pressure difference of the detached and fellow eyes, and anatomical success rates and postoperative complications, were retrospectively collected from the electronic patient files. Results: The initial intraocular pressure was significantly lower in the detached eyes of Group B than in Group A (8.3 ± 3.5 vs. 12.9 ± 3.3, p<0.001). Also, the initial intraocular pressure difference was significantly higher in Group B than in Group A (8.9 ± 3.2 vs. 2.2 ± 2.7mmHg, p<0.001). The receiver operating characteristic curve analysis showed that the cutoff value of the initial intraocular pressure difference was 7.5mmHg for the risk of persistent ocular hypotony. The most influential factors on postoperative persistent ocular hypotony in the binary logistic regression analysis were the initial intraocular pressure difference and the need for a retinectomy. Conclusion: In eyes with complex rhegmatogenous retinal detachment treated with pars plana vitrectomy and silicone oil tamponade, the initial intraocular pressure difference could be of value in predicting postoperative persistent ocular hypotony and could guide surgeons on the decision of silicone oil removal.