Browsing by Author "Ulubay, Gaye"

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A 10-Year Experience of Tuberculosis in Solid-Organ Transplant Recipients
(2015) Ulubay, Gaye; Kupeli, Elif; Birben, Ozlem Duvenci; Seyfettin, Emine Pinar; Dogrul, Mustafa Ilgaz; Ugurlu, Aylin Ozsancak; Eyuboglu, Fusun Oner; Haberal, Mehmet; 0000-0002-5525-8207; 0000-0002-3462-7632; 0000-0003-2478-9985; 0000-0003-3598-3986; 0000-0002-5826-1997; 25894157; AAR-4338-2020; AAJ-8097-2021; AAB-5064-2021; AAA-2925-2020; AAB-5345-2021
Objectives: Tuberculosis remains an important problem in solid-organ transplant patients due to their immunocompromised state. The objective of the present study was to report the incidence, demographic characteristics, and various presentations of tuberculosis in solid-organ transplant recipients. Materials and Methods: We evaluated a total of 999 patients (male/female = 665/334, 661 renal and 338 liver transplants) who underwent solid-organ transplant between 2003 and 2013. The medical records of all patients were retrospectively reviewed. Patients' demographics, transplant type, primary site of tuberculosis specimen culture and pathology results, chest radiograph, and thoracic computed tomography findings, total blood count and chemistry were all recorded. Results: Among the 999 subjects, 19 patients (1.9%) (male/female: 15/4, mean +/- SD age, 42 +/- 18.5 y) were diagnosed with tuberculosis. The majority of patients (85%) were diagnosed with tuberculosis within 6 months after transplant, and 15% were diagnosed within 3 months. Most diagnoses of tuberculosis were based on histopathologic examination of biopsy material. Of these patients, 9 were diagnosed with pulmonary tuberculosis, 8 had extrapulmonary tuberculosis, and 2 had both. Nontuberculosis mycobacteria infections were detected in 3 patients. Conclusions: Even with a negative exposure history, tuberculosis can manifest as different clinic presentations in solid-organ transplant patients on immunosuppressive drugs, particularly in the first 6 months after transplant. Therefore, clinicians should always consider tuberculosis as the potential cause of an infectious disease with unknown cause to successfully diagnose and manage solid-organ transplant recipients.
American Society of Anesthesiologists Classification Versus ARISCAT Risk Index: Predicting Pulmonary Complications Following Renal Transplant
(2017) Kupeli, Elif; Dedekarginoglu, Balam Er; Ulubay, Gaye; Eyuboglu, Fusun Oner; Haberal, Mehmet; 0000-0002-5525-8207; 0000-0003-2478-9985; 0000-0002-3462-7632; 0000-0002-5826-1997; 28260470; AAR-4338-2020; AAB-5064-2021; AAJ-8097-2021; AAB-5345-2021
Objectives: Patients with chronic renal failure are prone to pulmonary complications. Renal transplant recipients should undergo complete preoperative evaluation to determine risk of postoperative pulmonary complications. The American Society of Anesthesiologists classification and the Assess Respiratory Risk in Surgical Patients in Catalonia risk index correlate well with incidence of postoperative pulmonary complications. Here, we compared their accuracy in predicting pulmonary complications following renal transplant. Materials and Methods: We retrospectively reviewed medical records of renal transplant recipients between years 2004 and 2015. We collected patient data on Assess Respiratory Risk in Surgical Patients in Catalonia risk index, including demographics, smoking history, comorbidities, preoperative pulmonary risk score, laboratory results, surgery information, history of lower respiratory tract infection 1 month pretransplant, urgency of surgery, American Society of Anesthesiologists classification, and pulmonary complications within 1 month post transplant. Results: Of 172 patients (123 males; mean age 38.82 y), 22 (12.8%) developed pulmonary complication during the first month posttransplant, including effusion (9 patients), pneumonia (10 patients), respiratory inefficiency (2 patients), and pulmonary embolism (1 patient). Atelectasis was observed in 95.4% of patients with complications. A positive correlation was observed between age and development of complications (r = 0.171; P = .025). Regarding risk score, 75% of patients at high risk and 19.5% at intermediate risk developed pulmonary complications. Patients with low-risk scores had significantly lower complications than intermediate-and high-risk groups (P < .001). A positive correlation was observed between preoperative risk score and complications (r = 0.34; P < .001). There was no association between the American Society of Anesthesiologists scores and postoperative complications (P = .7). Conclusions: The American Society of Anesthesiologists classification was found to be a weaker modality to predict pulmonary complications after renal trans plant; as it relates to the general health status, than the Assess Respiratory Risk in Surgical Patients in Catalonia risk index.
Association Between Preoperative Pulmonary Risk Scores and Postoperative Complications in Renal Transplant Recipients
(2016) Kupeli, Elif; Dedekarginoglu, Balam Er; Ulubay, Gaye; Haberal, Mehmet; 0000-0002-5826-1997; 0000-0003-2478-9985; 0000-0002-3462-7632; 27805520; AAB-5345-2021; AAB-5064-2021; AAJ-8097-2021
Objectives: Patients who are being considered for renal transplant must undergo thorough preoperative pulmonary evaluation to determine risk of post operative pulmonary complications. The aim of this study was to determine the relation between the preoperative pulmonary risk factor score and pulmonary complications in patients undergoing renal transplant. Materials and Methods: Medical records of patients who underwent renal transplant at our institution between 2004 and 2015 were retrospectively reviewed. Patient demographics, smoking history, comorbidities, and preoperative pulmonary risk factors (age, oxygen saturation, hemoglobin level, type of incision, duration of surgery, history of lower respiratory tract infection 1 month before surgery, urgency of surgery), and type of pulmonary complications within 1 month after transplant were recorded. Results: Our study included 131 patients (94 male patients; mean age of 38.25 +/- 12.96 y). Of total patients, 21(16%) developed complications during the first month after transplant, with 10 of the 21 (7.6% overall) developing pulmonary complications. These complications were pleural effusion (2 patients), pneumonia (3 patients), respiratory failure (2 patients), and pulmonary embolism (1 patient). There were no deaths directly attributed to the pulmonary complications. A significant correlation was observed between the preoperative pulmonary risk factor score and postoperative pulmonary complications in renal transplant recipients (P =.003). A positive correlation between the preoperative pulmonary scores and postoperative pulmonary complications existed among life-long nonsmokers (r = 0.371; P =.003). Conclusions: Renal transplant is an established modality in treatment of chronic renal failure. Prevention of pulmonary complications is essential for successful outcomes following transplant. Health care professionals involved with renal transplant and transplant centers should be aware of preoperative pulmonary risk factors. Patients should be observed so that these risk factors can be reduced before planned transplant. Moreover, we also suggest that smoking history should be considered as a preoperative pulmonary risk factor as it was found to be a factor leading to postoperative pulmonary complications in our study.
Awareness of Respiratory Failure Can Predict Early Postoperative Pulmonary Complications in Liver Transplant Recipients
(2015) Ulubay, Gaye; Kirnap, Mahir; Dedekarginoglu, Balam Er; Kupeli, Elif; Eyuboglu, Fusun Oner; Haberal, Mehmet; 0000-0002-3462-7632; 0000-0002-5826-1997; 0000-0003-2478-9985; 0000-0002-5525-8207; 26640928; AAJ-8097-2021; AAH-9198-2019; AAB-5345-2021; AAB-5064-2021; AAR-4338-2020
Objectives: Cardiovascular and respiratory system complications are the most common causes of early mortality after liver transplant. We evaluated the causes of respiratory failure as an early postoperative pulmonary complication in liver transplant recipients. Materials and Methods: Patients who underwent orthotropic liver transplant between 2001 and 2014 were retrospectively evaluated. Clinical and demographic variables and pulmonary complications at the first and second visit after transplant were noted. The first visit was within the first week and the second was between 1 and 4 weeks after transplant. An arterial oxygen saturation value below 90% in room air for at least 1 day was considered a medically significant respiratory failure. Results: Our study included 204 (148 men and 56 women; mean age 43.0.4 +/- 13.06 y) adult liver transplant recipients (46 from deceased and 158 from living donors). At the first visit after transplant, 161 patients (79%) had postoperative pulmonary complications, including pleural effusion accompanied by atelectasis (47.1%), only atelectasis (17.2%), and only pleural effusion (10.3%). At the second visit, complications included atelectasis associated with pleural effusion (12.3%) and pneumonia (12.3%). All patients had documented respiratory failure at the first visit, and 92 patients (45.1%) had respiratory failure at the second visit. Causes of respiratory failure at the first visit included atelectasis in 35 patients (17.2%) and atelectasis accompanied by pleural effusion in 96 patients (47.1%). At the second visit, 25 of 161 patients (25.3%) had respiratory failure due to pneumonia. Other causes included atelectasis accompanied by pleural effusion (24.2%) and pleural effusion (23.2%). Ninety-seven patients had no pulmonary complications. The mortality rate was 6.4% within the first visit and 8.7% within the second visit. Conclusions: Pneumonia, atelectasis, and pleural effusion can cause respiratory failure within the first month after liver transplant. Early pulmonary examination, diagnosis, and treatment can improve patient survival.
Causes of Hemoptysis in Renal Transplant Patients
(2018) Serifoglu, Irem; Dedekarginoglu, Balam Er; Soy, Ebru Hatice Ayvazoglu; Ulubay, Gaye; Haberal, Mehmet; 0000-0002-0993-9917; 0000-0003-2478-9985; 0000-0002-3462-7632; 29527996; AAS-6628-2021; AAC-5566-2019; AAJ-8097-2021
Objectives: Hemoptysis is a symptom that can be caused by airway disease, pulmonary parenchymal disease, or pulmonary vascular disease, or it can be idiopathic. Infection is the most common cause of hemoptysis, accounting for 60% to 70% of cases. Hemoptysis is also an initial symptom of diffuse alveolar hemorrhage syndrome, although it may be absent at presentation in one-third of patients. Diffuse alveolar hemorrhage is characterized by disruption of the alveolar-capillary basement membranes because of either injury or inflammation of the arterioles, venules, or capillaries, resulting in bleeding in alveolar spaces. To date, no study in the literature has investigated the cause of hemoptysis in renal transplant patients. In this retrospective study, we aimed to investigate the causes of hemoptysis in renal recipients. Materials and Methods: The data included in this study were obtained from 352 renal transplant patients who were consulted by the pulmonology department regarding hemoptysis between 2011 and 2017 at Baskent University. Patient medical records were reviewed for demographic, clinical, radiographic, bronchoscopic features, and microbiology data. Immunosuppressive drugs and clinical outcome data were also noted. Results: This study included 352 renal transplant patients (139 male patients with mean age of 34.9 +/- 7 years and 113 female patients with mean age of 31.1 +/- 5 years). Hemoptysis was detected in 17 patients (4.8%),with 3 (0.85%) having massive hemoptysis as a result of diffuse alveolar hemorrhage syndrome. Fourteen of our patient group (4%) had pneumonia, and Aspergillus species was detected in 5 patients (1.4%). The only reason for diffuse alveolar hemorrhage was immunosuppressive agents, including sirolimus and mycophenolate mofetil. Conclusions: Hemoptysis is an important respiratory symptom in renal transplant patients. Although community- or hospital-acquired pneumonia may result in hemoptysis, drug-induced diffuse alveolar hemorrhage and Aspergillus infection should be considered for causes in renal transplant patients.
Clinical Features of SARS-CoV-2 Infection in Patients Undergoing Solid-Organ Transplant: Baskent University Experience
(2023) Yuce, Gulbahar Darilmaz; Ulubay, Gaye; Tek, Korhan; Bozbas, Serife Savas; Erol, Cigdem; Buyukasik, Piril; Haberal, Kemal Murat; Arslan, Ayse Hande; Akcay, Muserref Sule; Haberal, Mehmet; 0000-0002-2535-2534; 34635037; AAJ-1219-2021
Objectives: The clinical features and treatment approaches, outcomes, and mortality predictors of COVID-19 in solid-organ transplant recipients have not been well defined. This study investigated the clinical features of COVID-19 infection in solid-organ transplant recipients at our center in Turkey. Materials and Methods: Our study included 23 solid-organ transplant recipients and 336 nontransplant individuals (143 previously healthy and 193 patients with at least 1 comorbidity) who were hospitalized due to COVID-19 disease in our hospital between March 2020 and January 2021. Demographic, clinical, and laboratory data of patients were compared. We used SPSS version 20.0 for statistical analysis. All groups were compared using chi-square and Mann-Whitney U tests. P <.05 was considered statistically significant. Results: Mean age of solid-organ transplant recipients was 49.8 +/- 13.7 years (78.3% men, 21.7% women). Among the 23 recipients, 17 (73.9%) were kidney and 6 (26.1%) were liver transplant recipients. Among nontransplant individuals, 88.7% (n = 298) had mild/moderate disease and 11.3% (n = 38) had severe disease. Among transplant recipients, 78.3% (n = 18) had mild/moderate disease and 21.7% (n = 5) had severe disease (P =.224). Transplant recipients had greater requirements for nasal oxygen (P =.005) and noninvasive mechanical ventilation (P =.003) and had longer length of intensive care unit stay (P =.030) than nontransplant individuals. No difference was found between the 2 groups in terms of mortality (P =.439). However, a subgroup analysis showed increased mortality in transplant recipients versus previously healthy patients with COVID-19 (P <.05). Secondary infections were major causes of mortality in transplant recipients. Conclusions: COVID-19 infection resulted in higher mortality in solid- organ transplant recipients versus that shown in healthy patients. More attention on secondary infections is needed in transplant recipients to reduce mortality.
The Clinical Outcomes of Covid-19 Disease in Patients with Solid Organ Transplantation
(2021) Yuce, Gulbahar Darilmaz; Ulubay, Gaye; Karakaya, Emre; Tek, Korhan; Akdur, Aydincan; Bozbas, Serife Savas; Gedik, Ender; Kupeli, Elif; Erol, Cigdem; Arslan, Hande; Akcay, Sule; Haberal, Mehmet; https://orcid.org/0000-0002-4879-7974; https://orcid.org/0000-0002-8726-3369; https://orcid.org/0000-0002-2535-2534; https://orcid.org/0000-0002-5708-7915; https://orcid.org/0000-0002-3462-7632; JBS-4193-2023; AAD-5466-2021; AAA-3068-2021; AAJ-1219-2021; ABG-7034-2021; AAJ-8097-2021
The Clinical Outcomes Of Covid-19 Disease In Patients With Solıid Organ Transplantation
(2021) Yuce, Gulbahar Darilmaz; Ulubay, Gaye; Karakaya, Emre; Tek, Korhan; Akdur, Aydincan; Bozbas, Serife Savas; Gedik, Ender; Kupeli, Elif; Erol, Cigdem; Arslan, Hande; Akcay, Sule; Haberal, Mehmet; 0000-0002-8726-3369; 0000-0002-2535-2534; 0000-0002-5708-7915; 0000-0002-3462-7632; AAA-3068-2021; AAJ-1219-2021; ABG-7034-2021; AAJ-8097-2021
A Comparison of Calisthenic and Cycle Exercise Training in Chronic Obstructive Pulmonary Disease Patients: A Randomized Controlled Trial
(2016) Duruturk, Neslihan; Arikan, Hulya; Ulubay, Gaye; Tekindal, Mustafa Agah; https://orcid.org/0000-0003-2478-9985; https://orcid.org/0000-0002-4060-7048; 26616764; AAD-3908-2020; AAB-5064-2021; U-9270-2018
Aim: To compare the effects of calisthenic and cycle exercises with no exercise in chronic obstructive pulmonary disease patients.Method: Forty-seven participants were allocated to either a cycle or calisthenic exercise or control group. Outcome measures, including Saint George Respiratory Questionnaire, pulmonary functions, cardiopulmonary exercise testing, Fitness Testing, and Hospital Anxiety-Depression, Modified Medical Research Council Dyspnea, Fatigue Severity, Fatigue Impact Scales, were performed before and after the intervention.Results: The change in VE/VCO2 significantly differed (p=0.01) between two exercise groups. Physical fitness, quality of life, anxiety-depression, dyspnea and fatigue changed significantly in exercise groups, with no between-group differences. There were no significant improvements in control group.Conclusion: Calisthenics are as safe and effective as cycle exercise and could be included in comprehensive treatment programs.
Context Sensitive Links The Role of Aerolized Colistin in the Treatment of Hospital-Acquired Pneumonia: Experience of Multicenter From Turkey: Erratum (vol 44, pg e304, 2016)
(2018) Ekren, Pervin Korkmaz; Toreyin, Nur; Takir, Huriye Berk; Balci, Merih Kalamanoglu; Gaygisiz, Ummugulsum; Gursel, Gul; Ergan, Begum; Yalcin, Aslihan; Salturk, Cuneyt; Aydogdu, Muge; Ergun, Recai; Guven, Pinar; Ulubay, Gaye; Kaya, Aslihan Gurun; Celtik, Aygul; Uluer, Hatice; Bacakoglu, Feza; Sayiner, Abdullah; https://orcid.org/0000-0003-2478-9985; AAB-5064-2021
Coronavirus Disease (COVID-19) in Kidney and Liver Transplant Patients: A Single-Center Experience
(2020) Akdur, Aydincan; Karakaya, Emre; Soy, Ebru H. Ayvazoglu; Alshalabi, Omar; Kirnap, Mahir; Arslan, Hande; Ulubay, Gaye; Hekimoglu, Koray; Moray, Gokhan; Haberal, Mehmet; 0000-0002-0993-9917; 0000-0002-0805-0841; 0000-0002-3462-7632; 0000-0003-2478-9985; 0000-0003-2498-7287; 0000-0002-8726-3369; 0000-0002-4879-7974; 32519617; AAC-5566-2019; AAD-9097-2021; AAJ-8097-2021; AAB-5064-2021; AAE-1041-2021; AAA-3068-2021; AAD-5466-2021
Objectives: The novel 2019 coronavirus (COVID-19) was first described in December 2019 in Wuhan, China and subsequently announced as a pandemic on March 12, 2020. In several studies, solid-organ transplant recipients were reported to have higher risk for COVID-19. Here, we aimed to determine the frequency of COVID-19 in our kidney and liver transplant patients. Materials and Methods: Our study included 583 transplant patients who were admitted to our outpatient transplant clinics and emergency departments between March 1 and May 1, 2020. Seventy-four of them were liver transplant recipients (46 male, 28 female, of which 14 were pediatric and 60 were adult patients) and 509 of them were kidney transplant recipients (347 male, 162 female, of which 16 were pediatric and 493 were adult patients). We retrospectively evaluated demographic characteristics, currently used immunosuppressant treatment, present complaints, treatment and diagnosis of comorbid diseases, and results of COVID-19 tests. Results: Of 583 transplant recipients, 538 were seen in our outpatient transplant clinics and 45 were seen in our emergency departments. Of these, 18 patients who had had cough and fever were evaluated by respiratory clinic doctors, and nasopharyngeal swab samples were taken. One kidney transplant recipient had a positive COVID-19 test; he was followed with home isolation. He received treatment with hydroxychloroquine (400 mg/day). The other 17 patients had negative tests. There were no mortalities due to COVID-19. Conclusions: Transplant patients also got affected during the COVID-19 pandemic. According to the data of our centers, this effect is not much more different from the normal population. We recommend that transplant recipients should be warned in terms of personal hygiene and should be closely monitored by organ transplant centers. If there is an indication for hospitalization, they should be followed in an isolated unit, with no aggressive changes made to immunosuppressive doses unless necessary
Cross-Sectional Analysis Of Tobacco Addiction In Hospitalized COVID-19 Patients
(2022) Darilmaz Yuce, Gulbahar; Torun, Serife; Hekimoglu, Koray; Tuna, Derin; Sozbilici, Betul Rana; Cetin, Hikmet Oguz; Narlioglu, Mehmet Emin; Balli, Murat; Ozyesil, Ahmet Suheyl; Yavuz Colak, Meric; Ulubay, Gaye; Akcay, Muserref Sule; https://orcid.org/0000-0002-0805-0841; 36164949; AAD-9097-2021
Introduction: The COVID-19 pandemic has become an important health issue with consequences for special populations since 2019. Tobacco use is an important public health issue and tobacco users are a risk group for lung infections.Materials and Methods: The aim of this study is to obtain information about disease prevalence and severity, laboratory parameters, and changes in radio-logical findings between smokers and non-smokers who were hospitalized, followed up, and treated for COVID-19, and to find answers to critical questi-ons regarding the response to antiviral and supportive therapy. Two hundred eighty-six patients who were hospitalized and treated between March 2020-February 2021 in the COVID-19 Isolation Ward of Baskent University Hospital were included in the study. The patients were grouped as current smokers, non-smokers, and ex-smokers. The groups were compared in terms of symptoms, laboratory findings, radiological findings, and treatment respon-se.Results: The median age of the patients included in the study was 59 (IQR= 32). Of the patients, 40.6% were female and 59.4% were male. In our study, we discovered that there were fewer female smokers (p< 0.001). When the current smokers (n= 56), non-smokers (n= 159), and ex-smokers (n= 71) were compared based on their findings, it was found that dyspnea was more common in current smokers (p= 0.009). Lung involvement was found to be more common (p= 0.002) and multifocal in the current smokers group (p= 0.038). The levels of oxygen saturation at the times of admission and discharge were lower in current smokers (p= 0.002 and p= 0.038). The need for nasal oxygen and noninvasive mechanical ventilation was also found to be higher in current smokers (p= 0.008 and p= 0.039). Systemic steroid requirement was higher in current smokers (p= 0.013). There was no statistically significant differen-ce in terms of mortality between current smokers, ex-smokers, and non-smokers (p= 0.662).Conclusion: The analysis of the findings of the patients hospitalized in the COVID-19 isolation ward indicated that COVID-19 leads to a more serious course in patients with a history of smoking.
Culture-Positive Pulmonary Aspergillosis Infection: Clinical and Laboratory Features of Solid-Organ Transplant Recipient
(2017) Dedekarginoglu, Balam Er; Bozbas, Serife Savas; Ulubay, Gaye; Eyuboglu, Fusun Oner; Haberal, Mehmet; https://orcid.org/0000-0002-7230-202X; https://orcid.org/0000-0003-2478-9985; https://orcid.org/0000-0002-5525-8207; https://orcid.org/0000-0002-3462-7632; 28260471; AAI-8064-2021; AAB-5064-2021; AAR-4338-2020; AAJ-8097-2021
Objectives: Aspergillosis is a common fungal infection among solid-organ transplant recipients. Even after awareness of this infection occurs, there are still gaps in nonculture diagnostic tests, which can delay treatment initiation. Here, we aimed to define the common traits of pulmonary aspergillosis infection among solid-organ transplant recipients, thus shedding light on prevention and early diagnosis. Materials and Methods: We conducted a database search of patients at Baskent University who had a positive aspergillosis culture between January 2010 and March 2016. Among 20 patients identified, 15 (mean age of 50.93 +/- 11.17 y, 2 female and 13 male patients) with solid-organ transplant were included in the study. Results: Of the 15 study patients, 7 were heart transplant, 6 were kidney transplant, and 2 were liver transplant recipients. Three patients had positive aspergillosis cultures from extrapulmonary specimens (1 brain biopsy and 2 wound swap cultures). Other patients with positive cultures were from broncho alveolar lavage (6 patients), sputum (4 patients), both bronchoalveolar lavage and sputum (1 patient), and deep tracheal aspiration specimen (1 patient). Aspergillus fumigatus was the most common species. Mean hospitalization duration was 31.53 days (range, 2-135 d). Although all patients had positive culture results, 7 patients (46.7%) had negative galacto mannan test results at the time of culture specimen collection. Positive galactomannan test results were statistically higher in 6 heart transplant patients (P = .045). All patients had fever at presentation, and 13 patients had been referred to the pulmonary disease department before positive culture results were obtained. Conclusions: Risk factors for pulmonary aspergillosis and its clinical presentation in solid-organ transplant recipients are still unclear. Although the expected time for aspergillosis infection in solid-organ transplant recipients is 6 months after transplant, clinicians must remember the nonspecific presentation of infections in these patients and be aware of the reliability of diagnostic tools.
Difficult to manage COPD Exacerbations: Risk factors (DIMECO Study). Turkish Thoracic Society COPD Assembly
(2020) Baha, Ayse; Korkturk, Nurdan; Yapar, Dilek; Ozkan, Secil; Sen, Elif; Ciftci, Fatma; Ozturk, Burcu; Kodalak, Sumeyye; Ulubay, Gaye; Serifoglu, Irem; Varol, Yelda; Mertoglu, Aydan; Cirak, Ali Kadri; Turan, Onur; Dursunoglu, Nese; Savurmus, Nilufer; Gurgun, Alev; Elmas, Funda; Coplu, Lutfi; Sercelik, Umran; Yildiz, Reyhan; Ozmen, Ipek; Alpaydin, Aylin; Polatli, Mehmet; Yesiloglu, Ebru Karacay; Celik, Deniz
Effect of Asbestos Exposure on the Frequency of EGFR Mutations and ALK/ROS1 Rearrangements in Patients With Lung Adenocarcinoma A Multicentric Study
(2021) Yilmaz, Senay; Demirci, Nilgun Yilmaz; Metintas, Selma; Zamani, Adil; Karadag, Mehmet; Guclu, Ozge A.; Kabalak, Pinar Akin; Yilmaz, Ulku; Ak, Guntulu; Kizilgoz, Derya; Ozturk, Akin; Yilmaz, Ufuk; Batum, Ozgur; Kavas, Murat; Serifoglu, Irem; Unsal, Meftun; Komurcuoglu, Berna E.; Cengiz, Tuba Inal; Ulubay, Gaye; Ozdemirel, Tugce S; Ozyurek, Berna A.; Kavurgaci, Suna; Alizoroglu, Dursun; Celik, Pinar; Erdogan, Yurdanur; In, Erdal; Aksoy, Asude; Altin, Sedat; Gunluoglu, Gulsah; Metintas, Muzaffer; 33399308
Objective: The aim of this study is to investigate the effect of asbestos exposure on cancer-driver mutations. Methods: Between January 2014 and September 2018, epidermal growth factor receptor (EGFR), anaplastic lymphoma receptor tyrosine kinase (ALK), and c-ros oncogene 1 receptor tyrosine kinase gene (ROS1) alterations, demographic characteristics, asbestos exposure, and asbestos-related radiological findings of 1904 patients with lung adenocarcinoma were recorded. Results: The frequencies of EGFR mutations, ALK, and ROS1 rearrangements were 14.5%, 3.7%, and 0.9%, respectively. The rates of EGFR mutations and ALK rearrangements were more frequent in asbestos exposed non-smokers (48.7% and 9%, respectively). EGFR mutation rate was correlated to female gender and not-smoking, ALK rearrangement rate was correlated to younger age, not-smoking, and a history of asbestos exposure. Conclusions: The higher rate of ALK rearrangements in asbestos-exposed lung adenocarcinoma cases shows that asbestos exposure may most likely cause genetic alterations that drive pulmonary adenocarcinogenesis.
Effects of right ventricular dysfunction on exercise capacity and quality of life and associations with serum NT-proBNP levels in COPD: an observational study
(2014) Ozdemirel, Tugce Sahin; Ulasli, Sevinc Sarinc; Yetis, Begum; Karacaglar, Emir; Byraktar, Nilufer; Ulubay, Gaye
Objective: During the course of chronic obstructive pulmonary disease (COPD), pulmonary hypertension (PH) and right ventricular (RV) failure may develop due to elevated afterload of the RV. In those patients, exercise capacity is reduced due to pulmonary and cardiac limitations. We investigated relationships between serum N-terminal of proB-type natriuretic peptide (NT-proBNP) and RV functions with exercise capacity and quality of life in patients COPD. Methods: An observational case-control study was conducted. We enrolled 31 moderate and severe COPD patients, and 20 subjects without chronic diseases as control group. Parameters reflecting the right ventricular diastolic and systolic functions by echocardiography along with serum NT-proBNP levels were assessed. Cardiopulmonary exercise testing and Short Form-36 (SF-36) were applied. Results: Serum NT-proBNP levels were higher in COPD patients than control group (p=0.003). Serum NT-proBNP level was found to be related with pulmonary arterial pressure. Serum NT-proBNP levels were negatively correlated with anaerobic threshold oxygen uptake (AT VO2) and peak oxygen uptake (PVO2) values. Early ventricular filling velocity (Em) was lower in COPD patients. Em wave was significantly correlated with O-2 pulse. There was a positive relationship between tricuspid E/A ratio and VO2 value at AT. SF-36 domains of physical functioning, general health and role limitation due to physical disorder were significantly correlated with AT VO2, PVO2 and O-2 pulse. Conclusion: Exercise limitation may be predicted by assessment of right ventricule functions and NT-proBNP levels and exercise limitation impairs quality of life in COPD patients.
Evaluation of 30 and 90 Day Hospital Readmission Rates in Severe COPD Exacerbations: Turkish Thoracic Society COPD Assembly
(2020) Polatli, Mehmet; Baha, Ayse; Korkturk, Nurdan; Yapar, Dilek; Ozkan, Secil; Sen, Elif; Ciftci, Fatma; Turk, Burcu Oz; Kodalak, Sumeyye; Ulubay, Gaye; Serifoglu, Irem; Varol, Yelda; Mertoglu, Aydan; Cirak, Ali Kadri; Turan, Onur; Dursunoglu, Nese; Savurmus, Nilufer; Gurgun, Alev; Elmas, Funda; Coplu, Lutfi; Sertcelik, Umran; Yildiz, Reyhan; Ozmen, Ipek; Alpaydin, Aylin; Yesiloglu, Ebru Karacay; Celik, Deniz
Evaluation of nephrotoxicity and prognosis in patients treated with colistin due to hospital-acquired pneumonia
(2017) Ulubay, Gaye; Korkmaz Ekren, Pervin; Toreyin, Zehra Nur; Berk Takir, Huriye; Kalamanoglu Balci, Merih; Gaygisiz, Ummugulsum; Gursel, Gul; Ergan, Begum; Yalcin, Aslihan; Saltürk, Cuneyt; Aydogdu, Muge; Ergun, Recai; Guven, Pinar; Gurun Kaya, Aslihan; Celtik, Aygul; Uluer, Hatice; Bacakoglu, Feza; Sayiner, Abdullah; 0000-0003-2478-9985; 29631525; AAB-5064-2021
Introduction: Colistimethate sodium (CMS) is frequently used in the treatment of nosocomial multidrug-resistant gram-negative infections. Nephrotoxicity is the most important side effect. The aim of this study is to evaluate the effect of colistin on nephrotoxicity and to assess prognosis in patients treated with CMS due to hospital-acquired pneumonia (HAP). Materials and Methods: Patients treated with CMS for HAP due to multidrug-resistant Pseudomonas aeruginosa or Acinetobacter baumannii were included in this cohort study. Results: We evaluated 281 patients treated with two different brands of CMS whose administration dose is different: imported (n=58, low dose/kg) and domestic (n=223, high dose/kg). Nephrotoxicity developed in 175 patients (62.3%). The median age (73 vs. 66 years, p=0.004) and mortality rates were higher (66.9% vs. 52.8%, p=0.022) in patients having nephrotoxicity. The patients receiving high dose/kg had higher nephrotoxicity rate (67.7% vs. 41.4%, p < 0.001). The clinical, bacteriological response and mortality rates of the whole group were 52.0%, 61.0%, 61.6%, respectively. The clinical and bacteriological response rates were similar in the different dose groups. Multivariate analysis showed that nephrotoxicity was associated with domestic brand depending on use of high dose (OR=3.97), advanced age (beta=0.29, p=0.008), male gender (OR=2.60), hypertension (OR=2.50), red blood cells transfusion (OR=2.54), absence of acute kidney injury (OR=10.19), risk stage of RIFLE (OR=11.9). Conclusion: Nephrotoxicity is associated with the use of high dose colistin, age, gender, hypertension, red blood cells replacement and RIFLE stage. The mortality rate is higher in patients developing nephrotoxicity.
Invasive Pulmonary Aspergillosis in Heart Transplant Recipients
(2015) Kupeli, Elif; Ulubay, Gaye; Akkurt, Sevil Bayram; Eyulboglu, Fusun Oner; Sezgin, Atilla; 0000-0003-2478-9985; 0000-0002-5826-1997; 0000-0002-5525-8207; 25894189; AAB-5064-2021; AAB-5345-2021; AAR-4338-2020
Objectives: Invasive pulmonary aspergillosis is the most common invasive mycosis in heart transplant recipients. Early clinical recognition of this complication is difficult and laboratory data is not specific. Our aim was to study the characteristics of invasive pulmonary aspergillosis infections in heart transplant recipients. Materials and Methods: Between 2007 and 2013, there were 82 patients who underwent heart transplant at our institution, including 6 patients who were diagnosed with invasive pulmonary aspergillosis. Medical records of these patients were reviewed for demographic, clinical, and radiographic features, microbiology data, serum galactomannan levels, antifungal treatment, and overall outcomes. Results: The most common species causing the infection was Aspergillus fumigatus. The infection was encountered irrespective of the duration since the transplant. Bronchoalveolar lavage with positive culture for Aspergillus species and/or abnormal serum galactomannan level was suggestive of invasive pulmonary aspergillosis. Conclusions: In our opinion, empiric antifungal therapy should be commenced as soon as invasive pulmonary aspergillosis is suspected in heart transplant recipients to reduce mortality. Although the duration of antifungal therapy for invasive pulmonary aspergillosis is debatable, heart transplant recipients may require long-term therapy to avoid recurrence.
Koah'lı hastalarda atak nedeni ile hastane yatışlarının maliyet analizi: Başkent Üniversitesi Ankara Hastanesi Örneği
(Başkent Üniversitesi Sosyal Bilimler Enstitüsü, 2014) Ulubay, Gaye; Kavuncubaşı, Şahin
Kronik Obstrüktif Akciğer hastalığı (KOAH) tüm dünyada kişiler ve toplumların ekonomik yükünün önemli bir parçasını oluşturan önemli bir mortalite ve morbidite nedenidir. KOAH önlenebilir ve tedavi edilebilir bir hastalık olmasına rağmen tekrarlayan semptomlar ve akut alevlenmelerle karakterizedir. 2010 yılında Amerika Birleşik Devletlerinde KOAH maliyeti 50 milyar dolar olarak tahmin edilmiştir. Maliyet hastalığın şiddeti ile artmaktadır ve hastane yatışı maliyetin önemli bir kısmını oluşturmaktadır. KOAH’ın Türkiye’deki mortalite ve morbiditesinin ekonomik maliyeti henüz iyi bilinmemektedir. Literatürde Ülkemizde KOAH’lı hastaların hastane yatışının ekonomik yükünü yansıtan birkaç bölgesel çalışma vardır. Bu çalışmada, KOAH akut ataklı hastaların yaklaşık hastane yatış maliyetini ortaya koymayı amaçladık. Ayrıca, hastane yatış maliyetini etkileyen faktörleri de ortaya koymayı hedefledik. Bu amaçla 1 Ocak 2011-31 Aralık 2013 tarihleri arasında Başkent Üniversitesi Hastanesi Göğüs Hastalıkları Kliniği’ne yatırılan KOAH atak’lı hastalar (n:90) retrospektif olarak çalışmaya dahil edildi. Bütün hastaların yaş, cins, hastanede yatış süresi gibi demografik özellikler kaydedildi. Ayrıca hastaların grip aşısı öyküsü, aldıkları antibiyotik tedavileri, mekanik ventilasyon uygulaması ve yoğun bakımda kalışları kaydedildi.