Tıp Fakültesi / Faculty of Medicine
Permanent URI for this collectionhttps://hdl.handle.net/11727/1403
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Item 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-1219-2021Objectives: 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.Item Postoperative Pulmonary Complications in Living-Liver Donors: A Retrospective Analysis of 188 Patients(2015) Ulubay, Gaye; Dedekarginoglu, Balam Er; Kupeli, Elif; Sever, Ozlem Salman; Eyuboglu, Fusun Oner; Haberal, Mehmet; 0000-0003-2478-9985; 0000-0002-5525-8207; 0000-0002-5826-1997; 0000-0002-3462-7632; 25894187; AAB-5064-2021; AAR-4338-2020; AAB-5345-2021; AAJ-8097-2021Objectives: Living-donor liver transplant has become a viable option and an important source of hepatic grafts. The goal of this study is to establish postoperative pulmonary complications of liver donation surgery in our center. Materials and Methods: Data from 188 subjects (median age, 33.7 +/- 8.4 y; male/female, 51.1%/48.9%) who had liver donation surgery from 1988 to 2013 were analyzed retrospectively. Patient demographic and clinical features were recorded. Postoperative complications and the correlation of risk factors for postoperative pulmonary complications were investigated. Results: The incidence of early postoperative complications was 17% (n = 32), and 16 of these patients had postoperative pulmonary complications (8.5%); 2 of the postoperative pulmonary complications were detected on the day of surgery and the other 14 complications were observed between the second and seventh day after surgery. Most postoperative pulmonary complications were minor complications including atelectasis, pleural effusion, and pneumonia. There was 1 major postoperative pulmonary complication: pulmonary embolism that occurred on the fourth day after surgery in 1 patient. Late pulmonary complications also were reviewed and no late postoperative pulmonary complications were observed. There was no significant difference in early and late postoperative pulmonary complications between ex-smokers and smokers. Postoperative atelectasis was significantly higher in patients with body mass index <= 20 kg/m(2) than patients with body mass index > 21 kg/m(2) (P = .027). In our study population, no postoperative mortality was recorded. Conclusions: We believe that preoperative weight reduction strategies and early mobilization with postoperative respiratory physiotherapy could be important factors to reduce postoperative pulmonary complications in liver donors.Item Colonization of Legionella Species in Turkish Baths in Hotels in Alanya, Turkey(2015) Erdogan, Haluk; Arslan, Hande; 0000-0002-5708-7915; 0000-0002-9033-4236; 25850992; ABG-7034-2021; O-2247-2015This study evaluated the prevalence of Legionella species in water samples collected from Turkish baths in hotels in Alanya, Turkey, from August 2003 to September 2013. Water samples were collected in 100-mL sterile containers and then concentrated by filtration. Heat treatment was used to eliminate other microorganisms from the samples, which were then spread on Legionella-selective-buffered charcoal yeast extract alpha (BCYE-alpha) agar and on BCYE-alpha agar supplemented with glycine, vancomycin, polymyxin, and cycloheximide. Cysteine-dependent colonies were identified by latex agglutination. In total, 135 samples from 52 hotels with Turkish baths were evaluated. Legionella species were identified in 11/52 (21.2 %) hotels and 18/135 (13.3%) samples. The most frequently isolated species was Legionella pneumophila, with most isolates belonging to serogroups 6 (55.6 %) and 1 (22.2 %). The colony count was <100 colony-forming units (CFU) mL(-1) in nine samples, from 100 to 1000 CFU mL(-1) in six samples, and >1000 CFU mL(-1) in three samples. These findings suggest that the hot water systems of Turkish baths in hotels must be viewed as a possible source of travel-associated Legionnaires' disease, and preventative measures should be put in place.Item 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-8097-2021Objectives: 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.Item Role of Procalcitonin in Differential Diagnosis of Pneumonia and Pulmonary Congestion Associated With End-Stage Renal Failure(2016) Akcay, Sule; Dogrul, Ilgaz; Sezer, Siren; Haberal, Mehmet; 0000-0002-8360-6459; 0000-0002-3462-7632; 27805517; AAB-5175-2021; AAJ-8097-2021Objectives: We aimed to determine the role of procalcitonin in distinguishing between infectious and noninfectious causes, specifically the cause of the infiltrative appearances detected on lung radiographs of patients with end-stage renal failure receiving hemodialysis. Materials and Methods: Sixty-six patients between 19 and 87 years of age were enrolled. Patients were divided into 3 groups, with each group consisting of 22 patients: group 1 comprised pneumonia patients without end-stage renal failure, group 2 comprised pulmonary congestion patients with end-stage renal failure, and group 3 were healthy participants. All demographic and clinical characteristics of patients and healthy participants were noted, anteroposterior lung radiographs were taken, and blood samples were obtained for complete blood count, C-reactive protein, and procalcitonin measurements. Patients in group 2 received control posteroanterior lung radiography. Results: Group 1 demonstrated a significantly lower mean procalcitonin value than group 2 (P =.001) but significantly higher mean C-reactive protein and leukocyte levels (P <.05). In terms of mean C-reactive protein and leukocyte levels, there was no difference between groups 2 and 3 (P >.05). The classification performed by recognizing 0.5 ng/mL as the cutoff point for procalcitonin resulted in no significant differences between groups 1 and 2 (P =.103). However, a significant difference (P =.014) was found between these groups when basing the classification as 1.5 ng/mL cutoff point in group 2 and 0.5 ng/mL cutoff point in group 1. Procalcitonin level was below 1.5 ng/mL in all group 2 patients. Conclusions: Our findings support that procalcitonin has no superiority over C-reactive protein in diagnosis of community-acquired pneumonia. Moreover, at procalcitonin values below 1.5 ng/mL in patients with end-stage renal failure who have pulmonary congestion but without clinical signs of infection, infiltrative appearances on lung images may be attributed to hypervolemia, which would in turn prevent unnecessary antibiotic therapies. We believe that measurement of C-reactive protein is still preferable to procalcitonin in revealing the inflammatory response due to its cost-effectiveness and ease in performance and the high diagnostic performance in transplant candidates.Item Agreement Between Integrated Management of Childhood Illness and Final Diagnosis in Acute Respiratory Tract Infections(2018) Yalcin, Siddika Songul; Ozdemir, Beril; Ozdemir, Sadriye; Baskin, Esra; 0000-0001-9061-4281; 0000-0003-4361-8508; 29457209; I-9331-2013; B-5785-2018ObjectiveTo evaluate the agreement between integrated management of childhood illness (IMCI) and final diagnosis in patients presenting with cough at the second and third level health institutions.MethodsThis cross-sectional study included 373 children aged 2-60 mo who presented with cough at the pediatric emergency and outpatient clinics in the Department of Pediatrics. After clinical examination of children, body temperature, respiratory rate, saturation, presence or absence of the chest indrawing, rales, wheezing and laryngeal stridor were recorded. Cases were categorized according to IMCI algorithm regarding the severity using the color code, such as red (urgent treatment), yellow (treatment in the hospital), or green (treatment at home). Final diagnosis after physical examination, laboratory analysis and chest X-ray was compared with the IMCI algorithm.ResultsStudy agreement between IMCI classification and final diagnosis was 74.3% with kappa value 0.55 (moderate agreement). Similar agreement values were detected in both the second and third level health institutions. Health condition and gender did not affect agreement value. Agreement were found to be high in patients <24 mo of age (?=0.67), presence of fever and cough (?=0.54), tachypnea (?=0.93), chest indrawing (?=1.00) and oxygen saturation of <94%(?=0.90).ConclusionsAdding saturation level to the IMCI algorithmic diagnosis may increase agreement between IMCI classification and final diagnosis.Item Comparison of the clinical course of COVID-19 infection in sickle cell disease patients with healthcare professionals(2021) Boga, Can; Asma, Suheyl; Leblebisatan, Goksel; Sen, Nazan; Tombak, Anil; Demiroglu, Yusuf Ziya; Yeral, Mahmut; Akin, Sule; Yesilagac, Hasan; Habesoglu, Mehmet Ali; Aribogan, Anis; Kasar, Mutlu; Korur, Asli; Ozdogu, Hakan; 0000-0002-9866-2197; 34032899; AAZ-9711-2021; AAY-2668-2021It is highly expected that COVID-19 infection will have devastating consequences in sickle cell disease (SCD) patients due to endothelial activation and decreased tissue and organ reserve as a result of microvascular ischemia and continuous inflammation. In this study, we aimed to compare the clinical course of COVID-19 in adult SCD patients under the organ injury mitigation and clinical care improvement program (BASCARE) with healthcare professionals without significant comorbid conditions. The study was planned as a retrospective, multicenter and cross-sectional study. Thirty-nine SCD patients, ages 18 to 64 years, and 121 healthcare professionals, ages 21 to 53, were included in the study. The data were collected from the Electronic Health Recording System of PRANA, where SCD patients under the BASCARE program had been registered. The data of other patients were collected from the Electronic Hospital Data Recording System and patient files. In the SCD group, the crude incidence of COVID-19 was 9%, while in healthcare professionals at the same period was 23%. Among the symptoms, besides fever, loss of smell and taste were more prominent in the SCD group than in healthcare professionals. There was a significant difference between the two groups in terms of development of pneumonia, hospitalization, and need for intubation (43 vs 5%, P < 0.00001; 26 vs 7%, P = 0.002; and 10 vs 1%, P = 0.002, respectively). Prophylactic low molecular weight heparin and salicylate were used more in the SCD group than in healthcare professionals group (41 vs 9% and 28 vs 1%; P < 0.0001 for both). The 3-month mortality rate was demonstrated as 5% in the SCD group, while 0 in the healthcare professionals group. One patient in the SCD group became continously dependent on respiratory support. The cause of death was acute chest syndrome in the first case, hepatic necrosis and multi-organ failure in the second case. In conclusion, these observations supported the expectation that the course of COVID-19 in SCD patients will get worse. The BASCARE program applied in SCD patients could not change the poor outcome.Item Factors Affecting Mortality In Geriatric Patients Diagnosed With Community-Acquired Pneumonia Treated In Intensive Care Units(2021) Bozkurt Yilmaz, Hatice Eylul; Unsal, Zuhal Ekici; Habesoglu, Mehmet Ali; Kara, Sibel; Sen, NazanIntroduction: The aim of this study was to determine the factors affecting mortality in elderly patients with community-acquired pneumonia who were receiving intensive care unit. Materials and Methods: The study was retrospective, cross-sectional, and descriptive. The medical records of patients over 65 years of age who were admitted to the intensive care unit with a diagnosis of community-acquired pneumonia between January 1, 2013 and February 29, 2020 were reviewed. The factors associated with mortality in the patients who had died were examined. Results: A total of 208 patients with a mean age of 75.11 +/- 5.59 years, 78 of whom were women (37.5%), were included in the study. During the follow-up 35 (16.82%) of 208 patients had died from pneumonia or complications due to pneumonia. According to multiple linear regression analysis, the following parameters were found to be predictors of mortality: Charlson comorbidity index value (odds ratio: 1.44, 95% confidence interval: 1.132-1.1841, p=0.003), chronic obstructive pulmonary disease (odds ratio: 0.292, 95% confidence interval: 0.094-1.149, p=0.038), congestive heart failure (odds ratio: 0.199, 95% confidence interval: 0.051-0.782, p=0.021), saturation value in arterial blood gas (odds ratio: 0.569, 95% confidence interval: 0.804-0.939, p<0.001), intubation duration (odds ratio: 3.476, 95% confidence interval: 1.880-6.425, p<0.001), hypertension (odds ratio: 3.449, 95% confidence interval: 0.941-12.649, p=0.042), and the presence of diabetes mellitus (odds ratio: 3.116, 95% confidence interval: 2.673-59.021, p=0.046). Conclusion: Community-acquired pneumonia requiring intensive care unit is a clinical condition with high mortality in the elderly patient population. The presence of comorbid diseases and prolonged intubation time may be associated with higher mortality.Item Characteristics of hospitalized COVID-19 patients and parameters associated with severe pneumonia(2021) Turan, Muzaffer Onur; Mirici, Arzu; Akcali, Serap Duru; Turan, Pakize Ayse; Batum, Ozgur; Sengul, Aysun; Unsal, Zuhal Ekici; Kabakoglu, Nalan Isik; Ogan, Nalan; Torun, Serife; Ak, Guntulu; Akcay, Sule; Komurcuoglu, Berna; Sen, Nazan; Mutlu, Pinar; Yilmaz, UlkuItem Treatment of ventilator-associated pneumonia (VAP) caused by Acinetobacter: results of prospective and multicenter ID-IRI study(2020) Erdem, Hakan; Cag, Yasemin; Gencer, Serap; Uysal, Serhat; Karakurt, Zuhal; Harman, Rezan; Aslan, Emel; Mutlu-Yilmaz, Esmeray; Karabay, Oguz; Uygun, Yesim; Ulug, Mehmet; Tosun, Selma; Dogru, Arzu; Sener, Alper; Dogan, Mustafa; Hasbun, Rodrigo; Durmus, Gul; Turan, Hale; Batirel, Ayse; Duygu, Fazilet; Inan, Asuman; Akkoyunlu, Yasemin; Celebi, Guven; Ersoz, Gulden; Guven, Tumer; Dagli, Ozgur; Guler, Selma; Meric-Koc, Meliha; Oncu, Serkan; Rello, Jordi; 31502120Ventilator-associated pneumonia (VAP) due to Acinetobacter spp. is one of the most common infections in the intensive care unit. Hence, we performed this prospective-observational multicenter study, and described the course and outcome of the disease. This study was performed in 24 centers between January 06, 2014, and December 02, 2016. The patients were evaluated at time of pneumonia diagnosis, when culture results were available, and at 72 h, at the 7th day, and finally at the 28th day of follow-up. Patients with coexistent infections were excluded and only those with a first VAP episode were enrolled. Logistic regression analysis was performed. A total of 177 patients were included; empiric antimicrobial therapy was appropriate (when the patient received at least one antibiotic that the infecting strain was ultimately shown to be susceptible) in only 69 (39%) patients. During the 28-day period, antibiotics were modified for side effects in 27 (15.2%) patients and renal dose adjustment was made in 38 (21.5%). Ultimately, 89 (50.3%) patients died. Predictors of mortality were creatinine level (OR, 1.84 (95% CI 1.279-2.657); p = 0.001), fever (OR, 0.663 (95% CI 0.454-0.967); p = 0.033), malignancy (OR, 7.095 (95% CI 2.142-23.500); p = 0.001), congestive heart failure (OR, 2.341 (95% CI 1.046-5.239); p = 0.038), appropriate empiric antimicrobial treatment (OR, 0.445 (95% CI 0.216-0.914); p = 0.027), and surgery in the last month (OR, 0.137 (95% CI 0.037-0.499); p = 0.003). Appropriate empiric antimicrobial treatment in VAP due to Acinetobacter spp. was associated with survival while renal injury and comorbid conditions increased mortality. Hence, early diagnosis and appropriate antibiotic therapy remain crucial to improve outcomes.