Publications by authors named "Ozbay M"

Background And Aims: During liver transplantation, hepatocellular carcinoma (HCC) recurrence remains a critical challenge for patient survival. Targeted therapies, such as sorafenib and regorafenib, have been utilized to manage relapsed HCC in this unique setting. This study aimed to assess the efficacy of Sorafenib and Regorafenib in patients with HCC who experienced recurrence after liver transplantation.

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Lung cancer is the leading cause of cancer-related death globally and is often diagnosed at an advanced stage. Nivolumab represents a significant advancement for treating advanced non-small cell lung cancer (NSCLC). However, the absence of reliable biomarkers predicting treatment response hinders personalized therapy.

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The objective of this study was to evaluate and compare the histopathological, clinical, and treatment characteristics of xanthogranulomatous cholecystitis (XGC) in patients undergoing cholecystectomy at a single center. : We aim to enhance the understanding of its presentation and improve its differential diagnosis from other gallbladder pathologies. : We retrospectively reviewed 6783 cholecystectomy cases performed between January 2015 and January 2023 at the General Surgery Clinic of Haydarpaşa Numune Training and Research Hospital, and a diagnosis of xanthogranulomatous cholecystitis was histopathologically established in 131 patients.

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Article Synopsis
  • * Takotsubo syndrome (TTS) is a temporary heart condition often triggered by stress, but its causes and effects are not well understood, affecting around 1-2% of acute coronary syndrome cases.
  • * A study analyzed hospital data from 2016 to 2020, finding significant racial and ethnic disparities in TTS outcomes; most patients were White, with minorities generally younger and from lower-income backgrounds.
  • * Key findings include higher rates of stroke and mortality in Black and Asian patients, respectively, emphasizing the urgent need for targeted interventions to address healthcare inequalities related to TTS.
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Systemic lupus erythematosus (SLE) is an autoimmune disease that can affect multiple organ systems. Among these, the heart, including the pericardium, conduction system, myocardium, valves, and coronary arteries, can be affected. Hypertrophic cardiomyopathy (HCM) is a myocardial disease caused mainly by genetic mutation.

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Pericardial effusion, commonly associated with malignancies such as lung, breast, and esophageal cancers through local extension, or leukemia, lymphoma, and melanoma via metastatic dissemination, is rarely observed in renal cell carcinoma (RCC). This report presents a rare case of a large loculated pericardial effusion in a 68-year-old male, potentially linked to RCC, who concurrently presented with an inferior wall ST-elevation myocardial infarction (STEMI). The patient, with a history of hypertension, hyperlipidemia, end-stage renal disease, coronary artery disease, and former smoking, exhibited symptoms including chest pain, diaphoresis, and shortness of breath, but no fever, chills, or night sweats.

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Objective: Cisplatin is a widely used and potent cytotoxic chemotherapy agent, but its nephrotoxicity is a significant limiting side effect. Various premedication approaches have been implemented to preserve renal function, including magnesium (Mg) preloading. However, the optimal Mg dosage is still unknown.

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Recent randomized clinical trials demonstrated that treatment with sodium-glucose cotransporter-2 inhibitors (SGLT2is) reduces the risk of cardiac mortality due to sudden cardiac death and progressive pump failure in patients with heart failure (HF). Mechanisms underlying the potential anti-arrhythmic effects of SGLT2is are not well understood. We aimed to examine the effect of SGLT2i treatment on the frontal-plane QRS-T (f[QRS-T]) angle, a novel marker of myocardial repolarization and an independent predictor of adverse cardiac outcomes.

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Article Synopsis
  • The study aimed to explore the link between the severity of coronary artery lesions, measured by the SYNTAX score, and post-discharge sleep quality, assessed using the Pittsburgh Sleep Quality Index (PSQI).
  • A total of 424 patients with acute coronary syndrome participated, with 69.34% having a SYNTAX score of ≤22 and the rest >22, revealing no significant differences in age or sex distribution between the groups.
  • The analysis found that while several factors were linked to poor sleep quality, only a high SYNTAX score (>22) was independently associated with worse sleep quality after discharge.
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Transfusion-dependent β-thalassemia (thalassemia major and thalassemia intermedia) (BT) requires repeated blood transfusions for survival due to ineffective erythropoiesis. Consequently, iron overload can predispose the patient to atrial fibrillation (AF) despite the improved prognosis achieved with transfusion and chelation therapy. We sought to study the impact of AF on BT patients through a large database analysis.

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Background: Elastography Is A Non-invasive Medical Imaging Technique That Helps Determine The Stiffness Of Organs And Other Structures In Our Body. In This Study, We Investigated The Effectiveness Of Elastography In The Diagnosis Of Infertility. Aim: In this study, we aimed to examine the relationship between testicular elastography and hormonal parameters and sperm parameters.

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Article Synopsis
  • - TAVI (transcatheter aortic valve implantation) is commonly performed on extremely elderly patients with severe aortic stenosis, with a study analyzing data from 2016 to 2019 focusing on trends and outcomes in this population.
  • - Among 23,507 extreme elderly TAVI admissions, in-hospital mortality was low at 2%, and 30-day all-cause readmission rates were steady at 15%, while complications like stroke and pacemaker implantation remained stable over the years.
  • - Improvements were noted in hospital stays, with the average length decreasing from 5.5 days in 2016 to 4.3 days in 2019, and early discharge rates rose from 49% to 69
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Right heart failure (RHF) is a complex clinical syndrome that confers high risk of morbidity and mortality. We sought to study RHF using large national database. The study is a retrospective analysis of the National Readmission Database (NRD) of years 2017-2019.

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Alpha-terpineol, popular monoterpenoid alcohol, is known to cause cytotoxicity in a few cancer cells or to have antioxidant activity, but underlying mechanisms or apoptotic processes in yeast cell death should be understood. We used the fission yeast (Schizosaccharomyces pombe) as a unicellular model to monitor cellular toxicology and physiological mechanisms for the involvement of alpha-terpineol in cell death. Alpha-terpineol caused Reactive oxygen species (ROS) overproduction and following cytotoxicity and apoptosis in a dose-dependent manner.

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Aim: To compare survival outcomes, response rates, and adverse events (AEs) in proton pump inhibitor (PPI) user and non-user patients with metastatic colorectal cancer (mCRC) treated with regorafenib.

Methods: We included 272 patients with mCRC treated with regorafenib in this study. Patients were divided into two categories according to their status of PPI use.

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