Sarıyıldız, Gülçin Türkmen
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Sariyildiz, Guelcin Tuerkmen
G.,Sarıyıldız
Gülçin Türkmen, Sariyildiz
S., Gülçin Türkmen
G. T. Sariyildiz
S.,Gulcin Turkmen
G., Sariyildiz
G.T.Sarıyıldız
Sarıyıldız,G.T.
Gülçin Türkmen, Sarıyıldız
S.,Gülçin Türkmen
Sariyildiz, Gülçin Türkmen
Sarıyıldız G.
G. T. Sarıyıldız
Sariyildiz, Gulcin Turkmen
G.T.Sariyildiz
Sariyildiz,G.T.
Gulcin Turkmen, Sariyildiz
Sariyildiz G.
G.,Sariyildiz
S., Gulcin Turkmen
Sarıyıldız, Gülçin Türkmen
G.,Sarıyıldız
Gülçin Türkmen, Sariyildiz
S., Gülçin Türkmen
G. T. Sariyildiz
S.,Gulcin Turkmen
G., Sariyildiz
G.T.Sarıyıldız
Sarıyıldız,G.T.
Gülçin Türkmen, Sarıyıldız
S.,Gülçin Türkmen
Sariyildiz, Gülçin Türkmen
Sarıyıldız G.
G. T. Sarıyıldız
Sariyildiz, Gulcin Turkmen
G.T.Sariyildiz
Sariyildiz,G.T.
Gulcin Turkmen, Sariyildiz
Sariyildiz G.
G.,Sariyildiz
S., Gulcin Turkmen
Sarıyıldız, Gülçin Türkmen
Job Title
Doktor Öğretim Üyesi
Email Address
gulcin.turkmensariyildiz@atilim.edu.tr
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Scholarly Output
9
Articles
9
Citation Count
38
Supervised Theses
0
9 results
Scholarly Output Search Results
Now showing 1 - 9 of 9
Article Citation Count: 0Serum irisin levels and osteoporosis in patients with advanced chronic kidney disease and renal transplant recipients(Springer, 2023) Demir, Canan; Dursun, Ali Dogan; Sariyildiz, Guelcin Tuerkmen; Arslan, Aykut Ilker; Basic Sciences; Anesthesia ProgramAimTo elucidate the association of serum irisin levels with bone mineral density (BMD) and calcium-phosphorus metabolism parameters in chronic kidney disease (CKD) patients and renal transplant recipients (RTRs).MethodsThis is a cross-sectional study involving CKD patients and RTRs. Healthy volunteers served as controls. Age, gender, and dialysis vintage were recorded. Serum irisin, creatinine, glucose, calcium, albumin, 25(OH) vitamin D, ferritin, C-reactive protein, A1C, and lipid profile were studied in all participants. Estimated glomerular filtration rate (eGFR), corrected calcium, and body mass index (BMI) were calculated.ResultsOverall, 49 patients (23 hemodialysis, 26 RTRs) and 25 control subjects were included. In hemodialysis (HD) group, 8 patients (34.8%) had osteoporosis, and 12 patients (52.2%) had osteopenia. In RTR group, 3 patients (11.5%) had osteoporosis, while 15 patients (57.7%) had osteopenia. Among controls, one had osteoporosis, and 7 had osteopenia. There was no significant difference between HD and RTRs; however, osteoporosis rate was significantly lower in control subjects. BMD measurements (femur and lumbar T- and Z-scores) were comparable between HD and RTR groups. Control group DEXA values were similar to RTRs; however, they were significantly higher compared to HD group. 25(OH) vitamin D levels were comparable between the HD and RTR groups, and these were significantly lower compared to values of the control group. Mean serum irisin level was 426.6 +/- 191.2 pg/mL in hemodialysis group, 342.6 +/- 174.8 in the RTR group, and 208.0 +/- 186.1 in controls. Serum irisin levels were similar in RTR and HD groups, but their values were significantly higher compared to controls. When we compared serum irisin levels between patients with and without osteoporosis in the whole cohort and hemodialysis and RTR groups, there was no difference. Serum irisin was positively correlated with lumbar T-score both in hemodialysis and RTR groups.ConclusionOur study is the first in the literature revealing the positive correlation of serum irisin level with femur T-score in RTRs. Serum irisin level was also positively correlated with femur T-scores in hemodialysis patients.Article Citation Count: 15Laboratory and Imaging Evaluation of Cardiac Involvement in Patients with Post-Acute COVID-19(Dove Medical Press Ltd, 2021) Saricam, Ersin; Dursun, Ali Dogan; Sariyildiz, Gulcin Turkmen; Can, Nalan; Bozkurt, Engin; Gonullu, Ugur; Unlu, Mustafa; Anesthesia Program; Basic SciencesBackground: In the post-acute COVID-19 syndrome, many patients suffer from palpitations, effort-associated fatigue, and even sudden death. The mechanism of heart involvement in this syndrome is uncertain. The main purpose of the study was to identify possible cardiac involvement causes in patients with post-acute COVID-19 by using biomarkers such as NT-proBNP and nitric oxide (NO) and cardiac imaging modalities. Methods: In this cross-sectional study, a total of 105 participants were included according to the existence of symptoms, and 40 of these participants were asymptomatic patients. The ages of the participants ranged from 20 to 50 years. All patients were healthy before COVID-19. The symptoms were defined as palpitations and/or fatigue association with exercise in post-acute COVID-19 term. The comparison of the two groups was made by using biochemical parameters (NT-proBNP, Troponin I, NO) and imaging techniques (echocardiography, cardiovascular magnetic resonance (CMR) and cardiac positron emission tomography (PET)). Results: The symptomatic patients had higher NT-proBNP levels compared with asymptomatic patients (132.30 +/- 35.15; 76.86 +/- 16.79, respectively; p < 0.001). Interestingly, the symptomatic patients had lower NO levels than asymptomatic patients (9.20 +/- 3.08; 16.15 +/- 6.02, respectively; p < 0.001). Echocardiography and CMR were normal. However, we found regional increased 18F-FDG uptake on cardiac PET to be compatible with myocardial fatigue. Conclusion: We found elevated NT-proNBP levels, low serum NO levels, and increased 18F-FDG uptake on cardiac PET in post-acute COVID syndrome. Cardiac PET could replace or be added to CMR for detecting subtle subacute/chronic myocarditis. The follow-up of patients with post-acute COVID-19 could target the possibility of risk of heart failure.Article Citation Count: 15Laboratory and imaging evaluation of cardiac involvement in patients with post-acute covid-19(Dove Medical Press Ltd, 2021) Sarıçam,E.; Dursun,A.D.; Sarıyıldız,G.T.; Can,N.; Bozkurt,E.; Gönüllü,U.; Ünlü,M.; Department of Electrical & Electronics Engineering; Anesthesia Program; Basic SciencesBackground: In the post-acute COVID-19 syndrome, many patients suffer from palpitations, effort-associated fatigue, and even sudden death. The mechanism of heart involvement in this syndrome is uncertain. The main purpose of the study was to identify possible cardiac involvement causes in patients with post-acute COVID-19 by using biomarkers such as NT-proBNP and nitric oxide (NO) and cardiac imaging modalities. Methods: In this cross-sectional study, a total of 105 participants were included according to the existence of symptoms, and 40 of these participants were asymptomatic patients. The ages of the participants ranged from 20 to 50 years. All patients were healthy before COVID-19. The symptoms were defined as palpitations and/or fatigue association with exercise in post-acute COVID-19 term. The comparison of the two groups was made by using biochemical parameters (NT-proBNP, Troponin I, NO) and imaging techniques (echocardiography, cardiovascular magnetic resonance (CMR) and cardiac positron emission tomography (PET)). Results: The symptomatic patients had higher NT-proBNP levels compared with asymptomatic patients (132.30±35.15; 76.86±16.79, respectively; p < 0.001). Interestingly, the symptomatic patients had lower NO levels than asymptomatic patients (9.20±3.08; 16.15 ±6.02, respectively; p < 0.001). Echocardiography and CMR were normal. However, we found regional increased 18F-FDG uptake on cardiac PET to be compatible with myocardial fatigue. Conclusion: We found elevated NT-proNBP levels, low serum NO levels, and increased 18F-FDG uptake on cardiac PET in post-acute COVID syndrome. Cardiac PET could replace or be added to CMR for detecting subtle subacute/chronic myocarditis. The follow-up of patients with post-acute COVID-19 could target the possibility of risk of heart failure. © 2021 Sarıçam et al. This work is published and licensed by Dove Medical Press Limited.Article Citation Count: 0Sağlık Kurumlarında Toplam Kalite Yönetimi Uygulamalarının Çalışan İş Doyumu ve Örgütsel Bağlılığına Etkisi: Bir Özel Hastane Örneği(2023) Işık, Yurdagül; Tengilimoğlu, Dilaver; Ekiyor, Aykut; Sarıyıldız, Gülçin Türkmen; Business; Anesthesia ProgramGelişen teknoloji, küreselleşme, iletişim ağlarının artması, eğitim ve gelir düzeyindeki artışlar ile birlikte insanların beklentileri de artmıştır. Hastalar kendilerini güvende hissedecekleri kurumlarda tedavi olmayı istemekte, personel iş doyumunun yüksek olduğu kurumlarda çalışmayı tercih etmektedir. Hizmet alanında faaliyet gösteren diğer sektörlerden farklı olarak sağlık hizmeti veren kurumların maddi güce ve teknolojik donanıma sahip olmalarının yanında nitelikli iş gücüne sahip olmaları da çok önemlidir. Çünkü sağlık hizmeti sunumundaki hatalar insanın hayatını kaybetmesine varan ciddi kayıplar ile sonuçlanabilmektedir. Sağlıkta kalitenin temel göstergelerinden birisi hasta ve çalışan güvenliğidir. Bir hastanenin kalite belgesine sahip olması demek hasta bakım kalitesinin belirli bir standartta olduğunun, hasta ve çalışan güvenliğinin sağlandığının önemli göstergelerindendir. Bu araştırma, sağlık sektöründe faaliyet gösteren özel bir hastanede uygulanan kalite uygulamalarının, çalışan iş doyumu ve örgütsel bağlılığı üzerine etki durumunu değerlendirmek ve kalite çalışmaları ile çalışan iş doyumu ve örgütsel bağlılığı arasındaki ilişkiyi ölçmek amacıyla yapılmıştır. Araştırmanın evrenini Ankara ilinde faaliyet gösteren özel bir hastanede çalışan 462 çalışan oluşturmaktadır. Yapılan analizler sonucunda Toplam Kalite Yönetimi algısı ile iş doyumu arasındaki ilişki istatistiksel açıdan anlamlı bulunmuştur. Standart regresyon katsayısına göre, Toplam Kalite Yönetimi Algısı değişkenindeki 1 birim artışın İş Doyumu değişkeninde 0,743 birim artışa neden olduğu görülmüştür. Ayrıca Toplam Kalite Yönetimi Algısı ile Örgütsel Bağlılık arasındaki ilişki de istatistiksel olarak anlamlı bulunmuştur. Standart regresyon katsayısına göre Toplam Kalite Yönetimi Algısı değişkenindeki 1 birim artışın Örgütsel Bağlılık değişkeninde 0,457 birim artışa neden olduğu görülmüştür.Article Citation Count: 1Conservative management of unilateral and unilocolor ovarian cysts ≥ 10 cm in diameter in postmenopausal women(IMR Press Limited, 2021) Oguz,M.S.; Ecemiş,T.; Sarıyıldız,G.T.; Surgical Sciences; Anesthesia ProgramObjective: To evaluate and follow up the native behaviour of large ovarian cysts in postmenopausal women and establish the best approach based on advanced imaging technology. Study Design: The number of patients that were evaluated from January 2015 to September 2019 were 417. At the end of this study period, 375 patients were considered for this prospective evaluation. The patients with an ultrasound diagnosis of unilateral and unilocular ovarian cysts with regular septa ≥ 10 cm in diameter at menopause were enrolled in this study. During the follow-ups, the patients who developed irregular or thick septa, papillary formation or solid areas, exhibited any suspicious sign of malignancy in magnetic resonance imaging (MRI) results or displayed an augmentation in CA-125 levels were excluded from the study. In this study cancer antigen-125 (CA-125) values > 65 IU/mL were considered abnormal. The patients who met these criteria were followed with periodical ultrasounds and yearly MRI. Results: The 42 patients who were excluded from the study had significant morphological changes. These patients were showing an increase in CA-125 levels along with abnormal MRI findings during the follow-ups and in addition, they had surgical removal of cysts. All the significant morphological changes were detected by transvaginal ultrasounds. Postoperative histopathological diagnosis of these ovarian cysts revealed no abnormality. From 375 patient's cysts samples one hundred and twenty-five (33.3%) cysts had significantly decrease in size, one hundred and eleven (29.6%) of the cysts had spontaneous resolution and one hundred thirty-nine (37%) cysts persistently remained unchanged during the follow up period. The diameter of the cysts ranged from 10.4 to 18.4 cm. The cysts were categorized into three groups corresponding to a range of diameters i.e., 10-12.9 cm (62%), 13-15.9 cm (24.1%) and ≥ 16 cm (13.8%) respectively. The patients who showed spontaneous resolution were discontinued with the follow-ups while the rest of the patients were continued with their regular follow up examinations. Conclusion: The cysts should be monitored conservatively as long as possible before proceeding to a surgical treatment regardless of the size of the unilateral and unilocular ovarian cysts at postmenopausal period with limited oncogenic potential and without significant morphological changes. © 2021 The Authors.Article Citation Count: 1The Evaluation of Serum Endocan, Interleukin-6, and CRP Levels Following Sleeve Gastrectomy(Dove Medical Press Ltd, 2023) Sariyildiz, Gulcin Turkmen; Demir, Canan Cicek; Demir, Mehmet Emin; Arslan, Aykut Ilker; Banli, Oktay; Dursun, Ali Dogan; Basic Sciences; Anesthesia ProgramBackground: The excessive accumulation of fat tissue in obesity is the source of chronic low-level inflammation and causes future dysmetabolic and cardiovascular disorders. Removal of this excessive fat tissue with the aid of bariatric surgery (BS) techniques, such as sleeve gastrectomy, may reverse adverse inflammatory outcomes. The aim of this study is to investigate the impact of sleeve gastrectomy on inflammatory markers, specifically endocan, IL-6, and CRP, in individuals with obesity.Methods: Thirty-two patients with class 3 obesity and class 2 obesity + comorbidities were enrolled in the study. Clinical characteristics including age, comorbidity, body mass index (BMI), waist, and hip circumferences of the participants were noted before and 3 months after sleeve gastrectomy. Blood samples were collected during those periods to assess biochemical features such as serum endocan, interleukin-6 (IL-6), C-reactive peptide, fasting insulin, glycosylated hemoglobin A1c levels, and lipid panel. A statistical package program was used for the analysis of those parameters, and p<0.05 was accepted as significant at a 95.0% confidence interval.Results: BMI reduced from 43.55 +/- 6.78 to 36.16 +/- 6.14 kg/m(2) within 3 months following BS (p<0.001). Preoperative serum endocan, IL-6, and CRP levels were correlated with BMI, and in line with BMI reduction, their serum levels decreased after BS (p<0.05). HOMA-IR also reduced after BS, and both in the pre and post-BS periods correlated with BMI, IL-6, endocan, and CRP levels (p<0.05). The mean total body weight loss was 20.4% within 3 months post-BS.Conclusion: BS techniques are effective in weight loss and reversing the inflammatory processes caused by obesity. Serum endocan, IL-6, and CRP levels are promising markers for describing obesity-related inflammation and objectively checking the alleviation of inflammation following BS.Article Citation Count: 0Breast Cancer Management During the COVID Pandemic(Coll Physicians & Surgeons Pakistan, 2024) Sariyildiz, Gulcin Turkmen; Ayhan, Fikriye Figen; Anesthesia ProgramObjective: To explore the impact of COVID-19 among both the newly diagnosed patients and patients under follow-up for breast cancer by focusing on patients' accessibility to management and comparing the distribution of them before and during pandemic. Study Design: Single -centric retrospective study. Place and Duration of the Study: Department of General Surgery and Department of Physical Medicine and Rehabilitation, Atilim University, Medicana International Ankara Hospital, Ankara, Turkiye, from March 2018 to 2022. Methodology: The data were collected to analyse numbers and distributions of physician visits regarding breast cancer. Results: The mean age of patients was 55.98 +/- 12.60 years. The percentages of newly diagnosed cases showed similarity (7.37% vs. 9.79%) before and during the pandemic (p = 0.18). The number of imaging studies decreased by 53.33% in patients under follow-up (p = 0.006), despite screening tests showed a similar trend (p = 0.145). General surgery visits marked up (+44.6%), in contrast to plastic surgery visits (-42.04%, p <0.001). Patients' admissions decreased in many COVID-19 related clinics (pulmonology, emergency, internal medicine, and intensive care), but cardiology (+96.59%) and rehabilitation (+75%) admissions increased during the pandemic (p <0.001). The number of medical oncology and radiation oncology visits did not change (p >0.05). Conclusion: Total number of physician visits was similar before and during the pandemic despite the changing distribution. While COVID-19 led to markedly rising trends of surgical, cardiological, and rehabilitative management in patients with breast cancer, falling trends were seen in other specialities except oncology which showed a plateau during two years. The falling trends of visits to pulmonology, emergency, internal medicine, and intensive care clinics may be explained by crowded COVID-19 cases.Article Citation Count: 6The Evaluation of Oxidative Stress in the Young Adults with COVID-19 mRNA Vaccines Induced Acute Pericarditis- Myopericarditis(Dove Medical Press Ltd, 2022) Dursun, Ali Dogan; Saricam, Ersin; Sariyildiz, Gulcin Turkmen; Iscanli, Murat Dogan; Cantekin, Omer Faruk; Anesthesia Program; Basic SciencesBackground: During COVID-19 pandemic, several vaccines have been developed such as mRNA vaccines. However, acute pericarditis and myocarditis/myopericarditis cases have been described after mRNA vaccination. The mechanism for the development of cardiac involvement is unknown. Potential mechanism for oxidative stress associated with vaccine-induced heart involvement is unidentified. This study aimed to examine the role of oxidative stress and the heart involvement in young adults vaccinated with COVID-19 mRNA vaccines. Methods: In this cross-sectional study, a total of 23 participants were included and 10 of these participants were asymptomatic patients (control group). Comparison of the cardiac involvement and control group was made by using troponin I, C-reactive protein (hsCRP), D-dimer levels, and oxidative stress tests including nitric oxide, and imaging techniques (ECG, echocardiography, cardiovascular magnetic resonance). Results: The median age of acute pericarditis group (10 patients) was 22 years (Q1-Q3: 18.5-31), and the mean age was 24.4 +/- 7.5 years. The median age of myopericarditis group (3 patients) was 22 years (Q1-Q3 18.0-25.0), and the mean age was 21.6 +/- 3.5 years. All the myopericarditis cases were male. The patients with myopericarditis had higher troponin I level, hsCRP, and D-dimer levels (troponin I level; 1600.00 ng/mL; D-dimer; 1.20 mu g/mL, hsCRP; 3.0 mg/L, respectively; p < 0.05). Serum nitric oxide levels and OSI (total oxidant status, H2O2/total antioxidant status) were lower in myopericarditis group than the control and acute pericarditis group (p < 0.05). This shows inflammatory and procoagulant state. Conclusion: Vaccine-induced myopericarditis cases are associated with oxidative stress test abnormality (abnormal NO, OSI levels). However, there is no relationship between NO levels and other oxidative stress tests difference in vaccine-induced acute pericarditis. It is thought that vaccine-induced pericarditis and myopericarditis could have different pathogenesis. This could make it necessary to reassess the second dose of vaccination for vaccine-induced cardiac involvement cases.Article Citation Count: 0Clinical and Laboratory Evaluation of Acute Pericarditis Associated with Antinuclear Antibodies Positivity(Bentham Science Publ Ltd, 2023) Dursun, Ali Dogan; Saricam, Ersin; Erdem, Hakan; Sariyildiz, Gulcin Turkmen; Ozyer, Esref Umut; Bozkurt, Engin; Cantekin, Omer Faruk; Anesthesia Program; Basic SciencesBackground Up to 30% of patients with acute pericarditis develop recurrent pericarditis. Acute pericarditis may be a manifestation of an underlying systemic autoimmune disease. Therefore, we evaluated the characteristics of patients with acute pericarditis according to antinuclear antibodies (ANA) positivity/negativity. Methods Participants with acute pericarditis and negative ANA (n=29), recurrent pericarditis with positive ANA (n=30) and healthy controls (n=11) were examined. The groups were compared using serum parameters (ANA, C-reactive protein, leucocyte count, erythrocyte sedimentation rate, total antioxidant status, nitric oxide (NO), and oxidative stress index (OSI)) and imaging techniques (electrocardiogram, echocardiography, cardiovascular magnetic resonance, and venous Doppler ultrasound). Results In females, acute pericarditis associated with ANA occurred more frequently (p<0.001). ANA-positive acute pericarditis had significantly lower NO and OSI (p<0.05 and p<0.001, respectively) and pericardial inflammation on magnetic resonance. We found a pulmonary embolism in one patient with positive ANA. Slow venous flow (SVF) occurred more often in acute pericarditis associated with ANA than in the ANA-negative group on venous ultrasound (p<0.05). The prevalence of positive ANAs was 1.6 times higher among SVF patients than in controls. Conclusion This study suggests that acute pericarditis associated with ANA is more common in middle-aged females. SVF and lower oxidative stress tests were more common in patients with ANA-associated acute pericarditis. Acute pericarditis associated with ANA could be considered as a hypercoagulable state. Therefore, all newly diagnosed pericarditis patients (especially females) should be checked for ANA positivity. Awareness of this coexistence should be promptly addressed to establish management strategies.
