Yazar "Erdem, Hakan" için listeleme
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Antituberculosis drug resistance patterns in adults with tuberculous meningitis: results of haydarpasa-iv study
Senbayrak, Seniha; Ozkutuk, Nuri; Erdem, Hakan; Johansen, Isik Somuncu; Civljak, Rok; Inal, Ayse Seza; Inan, Asuman (Biomed Central Ltd, 2015)Background: Tuberculous meningitis (TBM) caused by Mycobacterium tuberculosis resistant to antituberculosis drugs is an increasingly common clinical problem. This study aimed to evaluate drug resistance profiles of TBM ... -
Comparison of brucellar and tuberculous spondylodiscitis patients: results of the multicenter "Backbone-1 Study"
Erdem, Hakan; Elaldi, Nazif; Batirel, Ayse; Aliyu, Sani; Sengoz, Gonul; Pehlivanoglu, Filiz; Ates-Guler, Selma (Elsevier Science Inc, 2015)BACKGROUND CONTEXT: No direct comparison between brucellar spondylodiscitis (BSD) and tuberculous spondylodiscitis (TSD) exists in the literature. PURPOSE: This study aimed to compare directly the clinical features, ... -
Değişken kalınlıklı homojen olmayan elastik silindirik ince kabukların dinamik dış basınç yükü etkisi altında stabilitesi
Sofıyev, Abdullah H.; Erdem, Hakan (2002)Bu makalede kalınlığı uzunluk koordinatına göre, elastik özellikleri ise kalınlık koordinatına göre sürekli değişen elastik silindirik ince kabukların zamana göre kuvvet fonksiyonu şeklinde değişen uniform dış basınç yükü ... -
The dynamic instability of FG orthotropic conical shells within the SDT
Sofiyev, Abdullah H.; Zerin, Zihni; Allahverdiev, Bilender P.; Hui, David; Turan, Ferruh; Erdem, Hakan (Techno-Press, 2017)The dynamic instability of truncated conical shells subjected to dynamic axial load within first order shear deformation theory (FSDT) is examined. The conical shell is made from functionally graded (FG) orthotropic material. ... -
Efficacy and Tolerability of Antibiotic Combinations in Neurobrucellosis: Results of the Istanbul Study
Erdem, Hakan; Ulu-Kilic, Aysegul; Kilic, Selim; Karahocagil, Mustafa; Shehata, Ghaydaa; Eren-Tulek, Necla; Elaldi, Nazif (Amer Soc Microbiology, 2012)No data on whether brucellar meningitis or meningoencephalitis can be treated with oral antibiotics or whether an intravenous extended-spectrum cephalosporin, namely, ceftriaxone, which does not accumulate in phagocytes, ... -
Hamsi scoring in the prediction of unfavorable outcomes from tuberculous meningitis: results of Haydarpasa-II study
Erdem, Hakan; Ozturk-Engin, Derya; Tireli, Hulya; Kilicoglu, Gamze; Defres, Sylviane; Gulsun, Serda; Sipahi, Oguz Resat (Springer Heidelberg, 2015)Predicting unfavorable outcome is of paramount importance in clinical decision making. Accordingly, we designed this multinational study, which provided the largest case series of tuberculous meningitis (TBM). 43 centers ... -
Mortality indicators in community-acquired pneumonia requiring intensive care in Turkey
Erdem, Hakan; Turkan, Hulya; Cilli, Aykut; Karakas, Ahmet; Karakurt, Zuhal; Bilge, Ugur; Yilmaz-Karadag, Fatma (Elsevier Sci Ltd, 2013)Background: Severe community-acquired pneumonia (SCAP) is a fatal disease. This study was conducted to describe an outcome analysis of the intensive care units (ICUs) of Turkey. Methods: This study evaluated SCAP cases ... -
Mortality indicators in pneumococcal meningitis: therapeutic implications
Erdem, Hakan; Elaldi, Nazif; Oztoprak, Nefise; Sengoz, Gonul; Ak, Oznur; Kaya, Selcuk; Sipahi, Oguz Resat (Elsevier Sci Ltd, 2014)Background: The aim of this study was to delineate mortality indicators in pneumococcal meningitis with special emphasis on therapeutic implications. Methods: This retrospective, multicenter cohort study involved a 15-year ... -
Portraying infective endocarditis: results of multinational ID-IRI study
Erdem, Hakan; Puca, Edmond; Ruch, Yvon; Santos, Lurdes; Ghanem-Zoubi, Nesrin; Argemi, Xavier; Duro, Raquel (Springer, 2019)Infective endocarditis is a growing problem with many shifts due to ever-increasing comorbid illnesses, invasive procedures, and increase in the elderly. We performed this multinational study to depict definite infective ... -
Quality of life and related factors among chronic hepatitis B-infected patients: a multi-center study, Turkey
Karacaer, Zehra; Cakir, Banu; Erdem, Hakan; Ugurlu, Kenan; Durmus, Gul; Ince, Nevin Koc; Kolgelier, Servet (Bmc, 2016)Background: The aim of this study was to assess health-related quality of life (HRQOL) among chronic hepatitis B (CHB) patients in Turkey and to study related factors. Methods: This multicenter study was carried out between ... -
Results of a Multinational Study Suggest the Need for Rapid Diagnosis and Early Antiviral Treatment at the Onset of Herpetic Meningoencephalitis
Erdem, Hakan; Cag, Yasemin; Ozturk-Engin, Derya; Defres, Sylviane; Kaya, Selcuk; Larsen, Lykke; Karsen, Hasan (Amer Soc Microbiology, 2015)Data in the literature regarding the factors that predict unfavorable outcomes in adult herpetic meningoencephalitis (HME) cases are scarce. We conducted a multicenter study in order to provide insights into the predictors ... -
Surveillance, control and management of infections in intensive care units in Southern Europe, Turkey and Iran - A prospective multicenter point prevalence study
Erdem, Hakan; Inan, Asuman; Altindis, Selma; Carevic, Biljana; Askarian, Mehrdad; Cottle, Lucy; Aslan, Turan (W B Saunders Co Ltd, 2014)Objective: We aimed to compare the features of intensive care units (ICUs), their antimicrobial resistance patterns, infection control policies, and distribution of infectious diseases from central Europe to Mid-West Asia. ... -
Withdrawal of Staphylococcus aureus from intensive care units in Turkey
Erdem, Hakan; Dizbay, Murat; Karabey, Selma; Kaya, Selcuk; Demirdal, Tuna; Koksal, Iftihar; Gungor, Gokay (Mosby-Elsevier, 2013)Background: In the past, Staphylococcus aureus infections have displayed various patterns of epidemiologic curves in hospitals, particularly in intensive care units (ICUs). This study aimed to characterize the current trend ... -
Yarı rijit bağlantılı ve rijit uç bölgeli düzlemsel çerçevelerin nonlineer analizi
Erdem, Hakan (2002)Bu çalışmada, uçlarında rijit bölgeler ve yarı rijit bağlantılar bulunan düzlemsel çerçevelerin nonlineer analizi incelenmektedir. Perde duvara bağlanan kirişin, perde duvar eksenindeki rijitlik etki katsayıları, elastik ... -
Yarı rijit bağlı düzlemsel çerçevelerin nonlineer analizi
Erdem, Hakan (1999)Bu çalışmada, düzlemsel çerçevelerin davranışı üzerinde, bağlantıların davranışının ve geometrik nonlineerliklerin etkisi araştırılmaktadır. Bu amaçla FORTRAN77 dilinde bir bilgisayar programı hazırlanmıştır. Eğer sisteme ...
