Publications by authors named "Oner O"

Aim: To investigate the effects of anti-human Leucocyte Antigen (HLA) antibody positivity on early hematopoietic stem cell transplantation (HSCT) results in patients with thalassemia major (TM).

Methods: One hundred and twenty-four HLA-matched HSCTs were performed in patients with TM between 2015 and 2022. Ninety-one patients were screened for anti-HLA antibodies by testing panel reactive antigens (PRA).

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  • The study aimed to assess the significance of the hypointense pericholedochal ring sign in MRI T2W images for diagnosing pancreatic ductal adenocarcinoma (PDA).
  • Conducted from January 2016 to March 2022 at a hospital in Istanbul, the study analyzed MRI scans of 70 patients with confirmed periampullary cancer, comparing results between PDA and non-PDA groups.
  • Results showed that the hypointense pericholedochal ring sign was found in 74.2% of PDA cases versus only 11.1% in non-PDA cases, indicating its potential as a valuable diagnostic marker.
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Purpose: It is not clear whether cognitive functions are impaired in young patients with acute coronary syndrome (ACS). This study aims to detect whether or not there is cognitive impairment and cerebral changes in young patients with ACS undergoing percutaneous coronary intervention (PCI).

Patients And Methods: All 50 patients with ACS who were treated with primary PCI were eligible for this prospective study.

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Aim: To investigate the impact of subthalamic deep brain stimulation (STN DBS) on apathy and the possible relationship between apathy, depression, and levodopa equivalent dosage (LED) in Parkinson's Disease (PD) patients.

Material And Methods: A total of 26 patients have been evaluated via the Unified Parkinson Disease Rating Scale (UPDRS), Beck Depression Inventory (Beck D), and Beck Anxiety Inventory (Beck A), Montreal Cognitive Assessment (MoCA), Parkinson Disease Questionnaire (PDQ-39) just before and 6 months after DBS.

Results: Apathy scores (AES) showed a slight decrease from 54.

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This study aims to investigate the effect of amantadine use on neurological outcomes and mortality in patients with severe traumatic brain injury (TBI) (Glasgow coma score [GCS] between 3 and 8) who have been followed up on mechanical ventilators in the intensive care unit (ICU). Data from the hospital's electronic records were retrospectively searched. Patients over 18 years of age, with severe brain trauma (GCS between 3-8), who were treated with endotracheal intubation and invasive mechanical ventilation at admission to the ICU, and who were treated with Amantadine hydrochloride at least once in the first week of follow-up were included in the study.

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Background: Biomarker-based therapies are increasingly used in cancer patients outside clinical trials. Systematic assessment of patient-reported outcomes (PRO) is warranted to take patients' perspectives during biomarker-based therapies into consideration. We assessed the feasibility of an electronic PRO assessment via a smartphone application.

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In this commentary we reflect on the potential and power of geographical analysis, as a set of methods, theoretical approaches, and perspectives, to increase our understanding of how space and place matter for . We emphasize key aspects of the field, including accessibility, urban change, and spatial interaction and behavior, providing a high-level research agenda that indicates a variety of gaps and routes for future research that will not only lead to more equitable and aware solutions to local and global challenges, but also innovative and novel research methods, concepts, and data. We close with a set of representation and inclusion challenges to our discipline, researchers, and publication outlets.

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Background: The purpose of surgeries performed for congenital anomalies in children is to increase the survival rates and provide a developmental comparison to that of their peers.

Aim: The objective of this study was to investigate the development of children following surgery for congenital anomalies and the risk factors affecting their development.

Methods: Our study included 33 children who underwent surgery for gastrointestinal anomalies in our clinic between 2011 and 2016, and did not have any syndrome, chromosomal abnormality, or additional abnormality.

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  • Developmental dyscalculia is a learning disorder affecting arithmetic skills, persisting from childhood into adulthood despite normal intelligence and education.
  • This study analyzed brain connectivity differences between children with developmental dyscalculia and typically developing peers using advanced imaging techniques.
  • Key findings revealed reduced white matter coherence and shorter tract lengths in specific brain pathways related to math ability, suggesting a link between these brain structures and difficulties in arithmetic learning.
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Objective: The aim of this study was to investigate both the presence and severity of collapse in anatomical regions defined by the VOTE score (velum, orofarinx, tongue, and epiglottis), during drug induced sleep endoscopy (DISE) in patients diagnosed with obstructive sleep apnea, based on the bi-spectral index (BIS) sedation level.

Methods: In order to conduct a meta-analysis of articles examining the relationship between the VOTE score and BIS sedation level in determining the presence and severity of upper airway collapse during DISE, a literature review was performed.

Results: As a result of the search made in the specified databases, a total of 1864 articles were reached.

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Background: Children who underwent hematopoietic stem cell transplant (HSCT) transplants are at high risk of developing central-line-associated bloodstream infections (CLABSIs). The present study aimed to identify possible risk factors for mortality by analyzing the clinical and laboratory characteristics of patients diagnosed with CLABSI in our pediatric hematopoietic stem cell transplant unit.

Methods: The initial CLABSI episodes of 102 children were analyzed.

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Introduction: In children with inborn errors of immunity (IEI) who will receive a hematopoietic stem cell transplant (HSCT) treosulfan-based conditioning is currently preferred. The aim of this study was to investigate early and late outcomes in pediatric IEI patients receiving pre-HSCT treosulfan and to examine the effect of treosulfan dose monitoring on outcomes.

Methods: Seventy-three pediatric patients receiving this management between 2015 and 2022 were included.

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Background/aim: This study aimed to investigate the effects of oxygen therapy using a high flow nasal cannula (HFNC) on patients diagnosed with COVID-19 Acute Respiratory Distress Syndrome (C-ARDS) by utilizing electrical impedance tomography (EIT)-based parameters.

Materials And Methods: Oxygen therapy was administered to the patients at two different flow rates and two different positions: T0-baseline measurements were taken in the supine position before any therapy was initiated. T1-HFNC was administered in the supine position with a flow rate of 30 L/min.

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Rationale And Objectives: Magnetic resonance imaging plays an important role in the evaluation of patients with known or suspected periampullary masses. The utilization of volumetric apparent diffusion coefficient (ADC) histogram evaluation for the entire lesion eradicates the potential for subjectivity in the region of interest placement, thus guaranteeing the accuracy of computation and repeatability.

Purpose: To investigate the value of volumetric ADC histogram analysis in the differentiation of intestinal-type (IPAC) and pancreatobiliary-type periampullary adenocarcinomas (PPAC).

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To conduct a bibliographic analysis of obstructive sleep apnea (OSA) which has reached epidemic proportions and is a frequent, unknown, and important cause of perioperative morbidity and mortality, by examining the internationally most cited articles. For OSA, the most cited articles in the field of anesthesiology and reanimation, appropriate access terms were compiled and combined, and related publications were searched using the Thompson Reuters Web of Science Citation Indexing search engine. A total of 79 journal publications were found on OSA and anesthesia, with an average of 14.

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Rationale And Objectives: This study investigated the utility of histogram parameters derived from diffusion-weighted imaging (DWI) for evaluating renal cell carcinoma (RCC) grading prior to surgery.

Materials And Methods: This retrospective study included 88 patients who were histopathologically diagnosed with RCC and underwent magnetic resonance imaging (MRI) examinations. The patients were divided into two groups as well-differentiated (Group 1) and poorly differentiated (Group 2).

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  • Treatment concepts in oncology are becoming personalized and diverse, requiring continuous monitoring of patient care through real-world data, which the DKTK's Clinical Communication Platform (CCP) facilitates.
  • The CCP connects 14 cancer centers and analyzes data from over 600,000 patients, focusing on diverse demographic details, diagnoses, treatment responses, and extensive biosample collections.
  • Through its sizable and detailed dataset, the cohort aids translational cancer research, enhances understanding of various cancers, and supports clinical trial design and evaluation in real-world settings.
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Background: The clinical utility of molecular profiling and targeted therapies for neuro-oncology patients outside of clinical trials is not established. We aimed at investigating feasibility and clinical utility of molecular profiling and targeted therapy in adult patients with advanced tumors in the nervous system within a prospective observational study.

Methods: molecular tumor board (MTB)@ZPM (NCT03503149) is a prospective observational precision medicine study for patients with advanced tumors.

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The optically pure binaphthyl-based phosphoramidite ligands and their perfluorinated analogs have been first used for the preparation of chiral palladium nanoparticles (PdNPs). These PdNPs have been extensively characterized by X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, P NMR, and thermogravimetric analysis techniques. The circular dichroism(CD) analysis of chiral PdNPs exhibited negative cotton effects.

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  • Low serum magnesium levels are common in ICUs and may be linked to new-onset atrial fibrillation (NOAF), which is under-researched.
  • A study with 110 ICU patients found that those with NOAF had lower median magnesium levels and a higher rate of hypomagnesemia compared to a control group.
  • NOAF is associated with higher mortality in critically ill patients, with hypomagnesemia identified as an independent risk factor for developing NOAF and increased hospital mortality.
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  • - The study aimed to assess afamin levels following weight loss in obese patients who underwent laparoscopic sleeve gastrectomy and to explore its relationship with various metabolic markers such as TSH, cholesterol, and insulin levels.
  • - Blood samples were collected from 43 patients before and six months after surgery to compare changes in body mass index (BMI) and other metabolic indicators.
  • - Results showed a decrease in afamin levels post-surgery that was not statistically significant, but there were significant decreases in BMI, cholesterol, and insulin levels, suggesting afamin could serve as a marker for metabolic syndrome related to obesity.
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Background: BKV-HC is one of the most significant complications of HSCT. This retrospective study aimed to determine the frequency of BKV-HC in pediatric patients undergoing HSCT, detect the associated risk factors for the development of BKV-HC, and explore the effects of post-transplantation Cy use.

Methods: Three hundred twenty-seven patients (girls: 121, boys: 206) were analyzed according to sex, conditioning regimen, transplantation type, donor relatedness, stem cell source, the presence and grade of aGVHD, CMV co-existence, and Cy use.

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  • The study examined how medical students from five countries perceive social distance towards individuals with mental illness, using a scale called RIBS to measure their behaviors.
  • A total of 257 North Macedonian, 268 Turkish, 450 Kazakh, 512 Azerbaijani, and 317 Polish students participated, responding to clinical scenarios involving schizophrenia and depression with suicidal ideation.
  • Findings showed that social distance perceptions did not decrease as students progressed in their medical education, highlighting the need for improved training for better interaction with people experiencing mental health issues.
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Aim: To investigate the effects of subthalamic deep brain stimulation (STN DBS) therapy on sleep quality of Parkinson?s Disease (PD) patients and the relationship between sleep, motor symptoms, depression, and adverse effects of dopamine replacement therapies.

Material And Methods: A total of 26 PD patients have been included and assessed using various tools both 1 week before and 8 months after the STN DBS therapy. The data collection tools were the Unified Parkinson?s Disease Rating Scale (UPDRS), Beck Depression Inventory (BDI), Montreal Cognitive Assessment (MoCA), Parkinson?s Disease Questionnaire (PDQ-39), Pittsburgh Sleep Quality Index (PSQI), Insomnia Severity Index (ISI), Epworth Sleepiness Scale (ESS) and Polysomnography.

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