Publications by authors named "Fuesun Gundogan"

Background: Scarce evidence is available on the epidemiology of microbiologically proven clinical infections in patients admitted to the intensive care unit (ICU) after a great earthquake. The main aim of this study was to assess clinical infections and microbiological features in patients admitted to the ICU following the 2023 earthquake in the southeastern region of Türkiye with a focus on the timing of culture positivity during their ICU stay. The secondary objectives included determining antibiotic susceptibility patterns, identifying the types of antibiotics administered upon ICU admission, evaluating the appropriateness of antibiotic usage, assessing patient outcomes, and identifying factors that influence microbiologically confirmed clinical infections.

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: In patients with acute coronary syndrome, electrocardiographic parameters, including ST elevation in lead aVR (aVR-STE), ST depression (aVR-STD), and QTc prolongation, are crucial. This study aims to show the predictive value of a longer QTc in emergency department patients with acute coronary syndrome and ≥1 mm ST elevation or depression in the aVR lead in electrocardiography. : A retrospective analysis was conducted on 1273 patients admitted to the emergency department with a preliminary diagnosis of acute coronary syndrome between 2020 and 2023.

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The pupillary light reflex could serve as a valuable method for measuring dynamic responses in the autonomic nervous system (ANS). However, it remains unclear whether physiological conditions such as fasting and dehydration affect pupillary reflexes. In this study, we investigated the effects of fasting and dehydration on pupillary responses using pupillometry.

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Purpose: Gastrointestinal (GI) dysfunction is common in critically ill patients and associated with poor outcomes. There is a lack of standardised methods for daily monitoring of GI function. COSMOGI aimed to develop a Core Outcome Set (COS) for daily monitoring of GI function to improve consistency and comparability in future studies in critically ill patients.

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Purpose: To present a case of bilateral neurotrophic keratopathy (NK) following an inactivated coronavirus disease 2019 (COVID-19) vaccine administration.

Methods: Case report.

Results: A 46-year-old female patient was referred to our cornea department with unhealing corneal epithelial defects in both eyes.

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Purpose: To evaluate the effects of normal vaginal delivery (NVD) and cesarean section (CS) on the retina, optic disc, and choroid in healthy pregnant women by using optical coherence tomography (OCT).

Methods: This prospectively designed study included 60 healthy pregnant women, of whom 30 underwent NVD and 30 underwent CS. Ophthalmological examinations and OCT scans were performed on all pregnant women during the third trimester and the first postpartum week.

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Article Synopsis
  • Refeeding syndrome (RFS) is linked to serious electrolyte imbalances like hypophosphatemia, especially in hospitalized patients with inflammatory bowel disease (IBD), which can be worsened by malnutrition and severity of the disease.
  • In a study of 50 IBD patients, 46% experienced hypophosphatemia during the first week of hospitalization, with significant correlations found between low phosphate levels and both potassium concentrations and disease severity.
  • Factors such as malnutrition, the use of parenteral nutrition, and severe IBD were identified as significant predictors for developing hypophosphatemia in these patients, highlighting the need for careful monitoring and management.
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Encephalopathy following sepsis is defined as life-threatening organ failure due to the irregular response of the host to infection and has high mortality and morbidity rates. The present study aimed to investigate the effects of inflammation and the gamma-aminobutyric acid-A (GABA) receptor antagonist, bicuculline, on brain tissue in rats with sepsis. Sepsis was experimentally generated using lipopolysaccharide (LPS).

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  • Acute ischemic stroke (AIS) is a serious complication in COVID-19 patients, with a study showing it occurred in 2.31% of hospitalized patients, primarily affecting older individuals with existing health issues.
  • The study analyzed 693 COVID-19 patients from April 2020 to February 2021, revealing that many AIS cases arose within the first 24 hours, led by total anterior circulation infarction and cardioembolic causes.
  • Patients with AIS had a higher prevalence of hypertension and heart disease, with a significant mortality rate, highlighting the need for awareness and monitoring for stroke risks in COVID-19 cases, particularly in older adults.
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In soil science, the allocation of soil samples to their respective origins holds paramount significance, as it serves as a crucial investigative tool. In recent times, with the increasing use of proximal sensing and advancements in machine-learning techniques, new approaches have accompanied these developments, enhancing the effectiveness of soil utilization in soil science. This study investigates soil classification based on four parent materials.

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Melatonin is a powerful endogenous antioxidant hormone. Its healing effects on energy balance and neuronal damage associated with oxidative metabolism disorders have been reported in pathologic conditions. We aimed to determinate the utility of melatonin on neuronal damage, synaptic transmission, and energy balance in the brain tissue of rats with sepsis induced with LPS.

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Background And Aims: The inconsistent data on thiamine status in obese subjects necessitates an examination of genes associated with intestinal absorption of thiamine. We aimed to reveal thiamine status in obese subjects and examine the expression of SLC19A2/3 genes encoding thiamine transporters and Sp1 transcription factor.

Methods And Results: Thirty-five adult obese subjects and 11 healthy controls were included in this cross-sectional study.

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Article Synopsis
  • Thiamine (Vitamin B1) plays a crucial role in energy metabolism, but its impact on overall metabolism during critical illness remains unexplored.
  • The study analyzed the connection between whole blood thiamine pyrophosphate (TPP) levels and various plasma metabolites in critically ill patients, using advanced metabolomics techniques.
  • Findings indicated that thiamine status is linked to multiple key metabolic pathways related to energy, carbohydrates, amino acids, and lipids in critically ill adults.
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Purpose: To compare, between Alzheimer's disease (AD) patients and healthy individuals, corneal subbasal nerve plexus (CSNP) parameters and corneal sensitivities.

Methods: Twenty-two patients who were followed up with Alzheimer's disease (Alzheimer's group) and 18 age- and gender-matched healthy individuals (control group) were included in this cross-sectional study. CSNP parameters, including nerve fiber length (NFL), nerve fiber density (NFD), and nerve branch density (NBD), were evaluated using in vivo confocal microscopy.

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  • The study examined the effects of latanoprost therapy on lamina cribrosa (LC) thickness and depth in patients with primary open-angle glaucoma (POAG) and ocular hypertension (OHT) compared to healthy individuals.
  • Results showed that before therapy, LC thickness was significantly thinner in POAG/OHT patients.
  • After one and three months of latanoprost treatment, LC thickness increased while LC depth decreased, indicating positive changes in ocular health for treated patients.
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Purpose: The current study is intended to investigate the effect of new organ involvement on overall survival (OS) and modify the Response Evaluation Criteria in PSMA Imaging (RECIP) by including new organ involvement to RECIP 1.0.

Materials And Methods: This retrospective study includes 114 patients diagnosed with metastatic castration-resistant prostate cancer (mCRPC) between September 2017 and June 2022 who had received docetaxel treatment and had baseline and post-treatment prostate-specific membrane antigen (PSMA) positron emission tomography/computed tomography (PET/CT) images.

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Micronutrients (MN), i.e. trace elements and vitamins, are essential organic molecules, which are required in the diet in relatively small amounts in any form of nutrition (oral, enteral, parenteral).

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Purpose: This examination aimed to display the size and topographic position of the Vidian canal (VC) in normal children.

Methods: 180 pediatric subjects aged 1-18 years were included this computed tomography examination. The distances of VC to certain landmarks, and VC length were measured.

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Micronutrients (MN), i.e. trace elements and vitamins, are essential components of the diet in relatively small amounts in any form of nutrition, with special needs in critically ill patients.

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Vitamins are essential organic molecules, which are required in the diet in relatively small amounts in any form of nutrition (oral, enteral, parenteral). Despite the small amounts that are required, the vitamins are essential both for maintenance of health, growth, and treatment of disease. After reminding about the principal function of all the vitamins, their needs and the clinical consequences of their deficit, the text present some common clinical problems: the impact of inflammation on the assessment of status.

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Background: Trace elements are an essential component of metabolism and medical nutrition therapy, with key roles in metabolic pathways, antioxidation, and immunity, which the present course aims at summarizing.

Results: Medical nutrition therapy includes the provision of all essential trace elements. The clinical essential issues are summarized for Copper, Iron, Selenium, Zinc, Iodine, Chromium, Molybdenum, and Manganese: the optimal analytical techniques are presented.

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Purpose: To determine the relationship between Graves ophthalmopathy (GO) and triglyceride glucose index (TGI) and to evaluate the predictive importance of this index in terms of GO activity.

Methods: This retrospective study included 20 inactive GO patients, 20 active GO patients, and 20 healthy controls. TGI was calculated using fasting plasma triglyceride and fasting plasma glucose levels and values were compared between the groups.

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Objectives: Medical nutrition therapy is one of the core components of patient management, although its implication is still limited in Daily practice globally. Clinicians are in need of guidance that will ease the application of medical nutrition therapy. The pre- and post-graduate curriculum for medical nutrition therapy is limited in most regions, worldwide.

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