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    Awareness of Hepatitis B Virus Reactivation Among Physicians Administering Immunosuppressive Treatment and Related Clinical Practices
    (Aves, 2019) Korkmaz, Pinar; Demirturk, Nese; Aydin, Gule; Ceken, Sabahat; Aygen, Bilgehan; Toka, Onur; Gundogdu, Kiymet
    Objective: This study aimed to evaluate the awareness and knowledge levels of all physicians administering immunosuppressive treatment concerning hepatitis B virus (HBV) reactivation, and draw attention to the importance of the subject through evaluation. Methods: The study was carried out by infectious diseases and clinical microbiology specialists in 37 health centers, and it was performed in Turkey between January and March 2017. All specialists providing a written consent and working in the departments of Medical Oncology, Hematology, Dermatology and Venereology, Physical Medicine and Rehabilitation, and Rheumatology of each study center were included in the study. Results: A total of 430 physicians participated in the study. Their mean age was 39.87 +/- 7.42 years, and 47.9% of them were males. During their career, 39.3% of these physicians had encountered patients developing HBV reactivation while receiving immunosuppressive treatment. The rate of encountering patients who died due to HBV reactivation was 6.5%. 97% of physicians who participated, considered the risk of HBV reactivation to be important. 70.2% of physicians stated that guidelines related to HBV reactivation and antiviral treatment for these patients were discussed in the congresses they participated, regarding their specialties. The rate of performing hepatitis screening among physicians whose patients developed HBV reactivation was statistically significantly higher than those physicians who had no patients with HBV reactivation (p<0.05). Physicians who used the guidelines related to HBV reactivation in their specialties performed screening for the HBV infection much more often than physicians who did not use the guidelines (p=0.002). Conclusions: According to the results obtained in our study, the rates of conducting screening and awareness of HBV reactivation among physicians administering immunosuppressive treatment were higher compared with similar studies; however, their awareness that HBV DNA and anti-HBc should be utilized much more frequently among the serological tests they use for screening of HBV infection, should be increased.
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    Factors Affecting Inadequate Empirical Antimicrobial Therapy and the Clinical Course of Upper Urinary Tract Infections in Elderly Patients: A Multicenter Study
    (Galenos Yayincilik, 2020) Korkmaz, Pinar; Kurtaran, Behice; Ozdemir Armagan, Sule; Turan Ozden, Hale; Kacar, Fatma; Ates, Selma; Durmus, Gul
    Introduction: In this study, we aimed to determine the risk factors associated with inadequate empirical antibiotherapy (IEAT) and hospital-related mortality in elderly patients being treated for upper urinary tract infections (UTI). Materials and Methods: This study included individuals aged 65 years and over who were hospitalized after being diagnosed of community-acquired UTI or community-onset healthcare-associated UTI and followed-up in clinics and/or intensive care units (ICU) of 33 hospitals between March and September 2017. Results: A total of 525 patients (48% males; mean age: 76.46 +/- 7.93 years) were included in the study. Overall, 68.2% of the patients were hospitalized through the emergency department and 73.9% of patients were followed-up for pyelonephritis. Gram-negative, Gram-positive, and Gram-negative and positive mix growths were determined in 88%, 9.3%, and 2.7% of urine cultures, respectively. Fifty-six (10.7%) of the patients died. In multivariate analysis, the presence of chronic obstructive pulmonary disease [Odds ratio (OR): 2.278], age 85 years and over (OR: 2.816), admission to the ICU (OR: 14.831), and IEAT (OR: 2.364) were independent factors that significantly affected mortality. The presence of a urinary catheter, being followed-up in the ICU, benign prostate hypertrophy, use of antibiotics other than piperacillin-tazobactam and carbapenem were determined as independent factors that significantly affected IEAT (p<0.05). Conclusion: In our study, we found a direct correlation between IEAT and mortality. Therefore, knowing the most frequent microorganisms and antibiotic susceptibility profiles observed in the UTI of elderly patients may help to decrease the mortality and morbidity associated with these infections.
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    Noninvasive Models to Predict Liver Fibrosis in Patients with Chronic Hepatitis B: A Study from Turkey
    (Kowsar Publ, 2017) Korkmaz, Pinar; Demirturk, Nese; Batirel, Ayse; Yardimci, Ahmet Cem; Cagir, Unal; Nemli, Salih Atakan; Korkmaz, Fatime
    Background: Manynoninvasive methods, including aspartateaminotransaminase (AST)/alanineaminotransaminase (ALT) ratio (AAR), AST-to-platelet ratio index (APRI), Bonacini cirrhosis discriminant score (CDS), fibrosis-4 (FIB4) index, and age-platelet index (API), have been described to determine the stage of hepatic fibrosis. However, thesemethodsare developed for patients with chronic hepatitisC(CHC) andproduce conflicting results in the prediction of liver fibrosis in patients with chronic hepatitis B (CHB). Objectives: The aim of this study was to evaluate the relationship between 7 noninvasive models, including AAR, APRI, CDS, API, FIB-4, neutrophil-to-lymphocyte ratio (NLR), and red cell distribution width (RDW)-to-platelet ratio (RPR) in patients with CHB. Methods: The study population included all patients with CHB, undergoing liver biopsy to determine HBsAg and HBV DNA positivity in more than 6 months. Results: A total of 2520 treatment-naive CHB patients from 40 different centers were included in the study. In total, 62.6% of the patients were male, and the mean age was 40.60 +/- 12.34 years (minimum, 18 years; maximum, 77 years). The Ishak fibrosis score was >= 3 in 29.8% of the patients, indicating significant fibrosis. The mean API, APRI, CDS, NLR, FIB4, and RPR scores in the noninvasive models were significantly different between the groups with significant and low fibrosis (P < 0.05). All the noninvave models (API, APRI, AAR, CDS, NLR, RPR, and FIB4) were found to be significant in the discrimination of cirrhosis (P < 0.05). In the multiple logistic regression analysis, CDS, albumin, alkaline phosphatase (ALP), total bilirubin, neutrophil count, NLR, mean platelet volume (MPV), and FIB4 were independent indices for cirrhosis. Conclusions: In the present study, the role of noninvasive tests in the prediction of liver fibrosis stage and cirrhosis was evaluated in a large cohort of CHB patients. Overall, noninvasive models are gradually becoming more promising. Accordingly, the need for liver biopsy can be reduced with a combination of noninvasive methods in the future.