Publications by authors named "Emre Yasar"

Article Synopsis
  • * Out of 90 RTR participants, the median antibody level was 16.7 AU/mL at 42 days post-first dose, with 60% showing positive serology; mycophenolic acid (MFA) and ACE inhibitors were found to decrease seropositivity.
  • * Patients who received the Pfizer/BioNTech booster had better antibody levels and lower COVID-19 infections compared to those with the CoronaVac/Sinovac booster, indicating that heterologous vaccination is more effective for RTRs.
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Background: This study aims to report the incidence of acute kidney injury following surgical reconstruction after a failed endovascular aneurysm repair (EVAR) in patients with abdominal aortic aneurysms.

Methods: This retrospective study included 44 patients (39 males, 5 females; mean age: 70±11.3 years; range, 35 to 84 years) who underwent emergency or elective surgical reconstruction after failed EVAR between February 2015 and January 2019.

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Article Synopsis
  • The study aimed to assess the vaccine response and impact of the BNT162b2 booster on COVID-19 positivity in haemodialysis (HD) and peritoneal dialysis (PD) patients previously vaccinated with two doses of CoronaVac.
  • A total of 80 PD and 163 HD patients were analyzed for antibody levels at various intervals post-vaccination, noting that all patients receiving the BNT162b2 booster showed seropositivity, while those who received another CoronaVac booster did not.
  • Results suggested that older age increased COVID-19 positivity, but receiving the booster significantly reduced this risk, highlighting the potential need for additional vaccination doses for patients undergoing dialysis.
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Article Synopsis
  • The study focused on using venous system ultrasound (VExUS) in the emergency department (ED) to determine the causes of acute kidney injury (AKI), which can be complex to diagnose.
  • Conducted over a year, the study evaluated 150 AKI patients, finding that hypovolaemia was the most common cause, followed by cardiorenal, systemic vasodilatation, and renal types.
  • VExUS demonstrated good diagnostic accuracy for cardiorenal AKI and fair accuracy for hypovolaemic AKI, but was less effective in identifying the other subtypes.
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Background: This study aimed to compare the outcomes of minimally invasive mitral valve surgery and conventional surgery in terms of mortality and postoperative complications.

Methods: A retrospective analysis was conducted on consecutive minimally invasive and conventional mitral valve surgeries performed between January 2019 and December 2022. Patients undergoing concomitant procedures were excluded from the study, and 293 patients (149 females, 144 males; mean age: 53.

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Background: Immunoglobulin A nephropathy (IgAN) is a common primary glomerulonephropathy. There is evidence that mesangial C3 deposition plays a role in the development of the disease. The aim of this study was to examine the effect of C3 deposition on the prognosis of IgAN patients.

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Background: Robotic-assisted coronary surgery is gaining attraction as an alternative to traditional open-heart procedures, offering potential benefits such as decreased mortality rates, shorter hospital stays, and reduced complications. This study aimed to investigate the outcomes of robotic-assisted coronary surgery, focusing particularly on the impact of obesity.

Methods: A total of 210 consecutive patients underwent robotic-assisted coronary surgery over an eight-year period at a single institution.

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Introduction: This study aimed to investigate the factors affecting false lumen patency in the descending thoracic aorta among patients who underwent surgery for acute type 1 aortic dissection.

Methods: A total of 112 patients with acute type 1 aortic dissection, with the flap below the diaphragm level, underwent surgery between January 2010 and September 2019. Of these, 60 patients who were followed up for ≥ 12 months and whose computed tomography scans were available were included in this study.

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Introduction: The aim of this study is to compare the postoperative outcomes and early mortality of peripheral and central cannulation techniques in cardiac reoperations using propensity score matching analysis.

Methods: In this retrospective cohort, patients who underwent cardiac reoperations with median resternotomy were analyzed in terms of propensity score matching. Between November 2010 and September 2020, 257 patients underwent cardiac reoperations via central (Group 1) or peripheral (Group 2) cannulation.

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Article Synopsis
  • Amyloidosis has been recognized since the 19th century, with ties to conditions like chronic infections and multiple myeloma, while familial Mediterranean fever (FMF) was only accurately identified in the 21st century.
  • Colchicine has been proven effective for treating FMF and preventing related amyloidosis since the 1970s, but recent studies show that amyloidosis cases related to FMF are decreasing, even though total cases in patients with hemodialysis remain unchanged.
  • The lack of a comprehensive registry for familial Mediterranean fever and its amyloidosis cases is believed to hinder progress in understanding why this preventable complication still leads to end-stage renal disease.
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Background: This study aims to investigate the risk factors and surgical outcomes of conversion to median sternotomy in minimally invasive direct coronary artery bypass grafting.

Methods: Between January 2017 and July 2022, a total of 274 patients (246 males, 28 females; mean age: 57.0±9.

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Background: Improving health related quality of life is an important goal of aortic valve replacement. Inadequate effective orifice area of prosthesis according to the patient's body surface area may be associated with poor outcomes. In this study, we aimed to analyze impact of indexed effective orifice area (iEOA) on patients' quality of life after aortic valve replacement.

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Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection could present in a clinical spectrum of varying severity. Human leukocyte antigen (HLA) is a crucial component of the viral antigen presentation pathway and immune response to the virus. Therefore, we aimed to assess the impact of HLA allele polymorphisms on the susceptibility to SARS-CoV-2 infection and related mortality in Turkish kidney transplant recipients and wait listed patients, along with clinical characteristics of the patients.

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Purpose: Stanford type A aortic dissection (TAAD) is the most common and fatal type of dissection. An easier-to-use risk stratification may help eliminate bias in patients at high risk of dissection. The age, serum creatinine, and ejection fraction (ACEF) score is a simple risk model developed to predict the mortality risk of elective coronary artery bypass graft surgery.

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This study investigated the diagnostic performance of point-of-care ultrasound (POCUS) for acute kidney injury (AKI) etiological subgroups in emergency department (ED) patients. Multi-organ POCUS including kidney, bladder, inferior vena cava (IVC), lung and cardiac examinations were used to identify five AKI subgroups: hypovolemia, reduced cardiac output, systemic vasodilatation and renal vasomodulation, renal and post-renal. One hundred sixty-five AKI patients were included in the study.

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Objectives: C-reactive protein to albumin ratio (CAR) and prognostic nutritional index (PNI) are novel parameters with proven prognostic importance in the postoperative outcomes of coronary and peripheral vascular diseases. In this study, we aimed to evaluate the ability of CAR and PNI to predict major cardiac and cerebrovascular events (MACCE) during the postoperative period of Carotid artery endarterectomy (CEA).

Methods: A total of 505 carotid endarterectomy patients were retrospectively evaluated.

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Introduction: Nutrition in hemodialysis patients is important in decreasing complications, improving quality of life, and preventing of malnutrition. Recommendations of the guidelines are taken into consideration while prescribing a nutrition therapy plan for patients. However, the recommendations may differ between the guidelines.

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Background: Chronic kidney disease (CKD) is associated with an increased risk of frailty, morbidity, and mortality in older adults. Limited health literacy (HL) is a condition that can cause frailty in CKD. Frailty leads to a decreased resistance to stress situations caused by activities of daily living and increased morbidity and mortality.

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Objective: To determine the prevalence of sarcopenia in patients with chronic kidney disease (CKD), investigate the relationship of the serum myostatin level with sarcopenia and inflammatory markers.

Methods: The study was conducted with four patient groups: renal transplantation (TX), stage 3-5 non-dialysis-dependent CKD (NDD-CKD), hemodialysis (HD), and peritoneal dialysis (PD). Laboratory parameters, serum myostatin, C-reactive protein, and interleukin-6 levels were studied.

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Purpose: To evaluate urinary kidney injury molecule-1 (uKIM-1), which is a proximal tubule injury biomarker in subclinical acute kidney injury (AKI) that may occur in COVID-19 infection.

Methods: The study included proteinuric (n = 30) and non-proteinuric (n = 30) patients diagnosed with mild/moderate COVID-19 infection between March and September 2020 and healthy individuals as a control group (n = 20). The uKIM-1, serum creatinine, cystatin C, spot urine protein, creatinine, and albumin levels of the patients were evaluated again after an average of 21 days.

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Aim: This study aims to determine the frequency of COVID-19 related AKI and to identify the early predictors of AKI.

Methods: This study is a single-center, retrospective, observational study. Hospitalized COVID-19 patients between 24/03/2020 and 31/05/2020 were included in the study.

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We evaluated the symptoms, changes in laboratory findings during the novel coronavirus disease (COVID-19) pandemic, and the effect of depression in patients with peritoneal dialysis (PD). This is an observational and cross-sectional study. All patients were asked to fill the clinical assessment form and Beck depression and anxiety inventory.

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Background: In our study, diagnostic and demographic characteristics of patients diagnosed with RPGN by biopsy, clinical and laboratory findings in our country were investigated.

Methods: Data were obtained from the Turkish Society of Nephrology Glomerular Diseases (TSN-GOLD) Working Group database. Demographic characteristics, indications for biopsy, diagnosis of the glomerular diseases, comorbidities, laboratory and biopsy findings of all patients were recorded.

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Background: The aim of our study was to compare the outcome of patients who underwent mitral valve anterior leaflet repair with and without chordal replacement for degenerative mitral valve insufficiency.

Methods: This study was conducted at our center between May 2006 and May 2013. The study included 125 patients with degenerative mitral valve insufficiency (64 males, 61 females; mean age 47 years, age range 16-78 years) who underwent mitral valve repair with anterior leaflet procedures.

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