Halil Ozdemir

Prof. Halil Ozdemir


Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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18 November 2014 in Annals of Clinical Microbiology and Antimicrobials
Verified
Journal Article
Open access
PDF file
HLHakan Leblebicioglu
Hakan Leblebicioglu
NENurettin Erben
Nurettin Erben
VRVictor Daniel Rosenthal
Victor Daniel Rosenthal
BABegüm Atasay
Begüm Atasay
AEAyse Erbay
Ayse Erbay
DADilek Arman
Dilek Arman
Device-associated healthcare-acquired infections (DA-HAI) pose a threat to patient safety, particularly in the intensive care unit (ICU). We report the results of the International Infection Control Consortium (INICC) study conducted in Turkey from August 2003 through October 2012. A DA-HAI surveillance study in 63 adult, paediatric ICUs and neonatal ICUs (NICUs) from 29 hospitals, in 19 cities using the methods and definitions of the U.S. NHSN and INICC methods. We collected prospective data from 94,498 ICU patients for 647,316 bed days. Pooled DA-HAI rates for adult and paediatric ICUs were 11.1 central line-associated bloodstream infections (CLABSIs) per 1000 central line (CL)-days, 21.4 ventilator-associated pneumonias (VAPs) per 1000 mechanical ventilator (MV)-days and 7.5 catheter-associated urinary tract infections (CAUTIs) per 1000 urinary catheter-days. Pooled DA-HAI rates for NICUs were 30 CLABSIs per 1000 CL-days, and 15.8 VAPs per 1000 MV-days. Extra length of stay (LOS) in adult and paediatric ICUs was 19.4 for CLABSI, 8.7 for VAP and 10.1 for CAUTI. Extra LOS in NICUs was 13.1 for patients with CLABSI and 16.2 for patients with VAP. Extra crude mortality was 12% for CLABSI, 19.4% for VAP and 10.5% for CAUTI in ICUs, and 15.4% for CLABSI and 10.5% for VAP in NICUs. Pooled device use (DU) ratios for adult and paediatric ICUs were 0.54 for MV, 0.65 for CL and 0.88 for UC, and 0.12 for MV, and 0.09 for CL in NICUs. The CLABSI rate was 8.5 per 1,000 CL days in the Medical Surgical ICUs included in this study, which is higher than the INICC report rate of 4.9, and more than eight times higher than the NHSN rate of 0.9. Similarly, the VAP and CAUTI rates were higher compared with U.S. NHSN (22.3 vs. 1.1 for VAP; 7.9 vs. 1.2 for CAUTI) and with the INICC report (22.3 vs. 16.5 in VAP; 7.9 vs. 5.3 in CAUTI). DA-HAI rates and DU ratios in our ICUs were higher than those reported in the INICC global report and in the US NHSN report.

1 July 2011 in International Journal of Infectious Diseases
Verified
Journal Article
Closed access
HOHalil Ozdemir
Halil Ozdemir
AKAdem Karbuz
Adem Karbuz
EÇErgin Çiftçi
Ergin Çiftçi
SFSuat Fitöz
Suat Fitöz
EIErdal İnCe
Erdal İnCe
ÜDÜlker Doğru
Ülker Doğru

9 December 2009 in Journal of Tropical Pediatrics
Verified
Journal Article
Open access
PDF file
HOHalil Ozdemir
Halil Ozdemir
EÇErgin Çiftçi
Ergin Çiftçi
ATAnıL TapıSıZ
AnıL TapıSıZ
EİErdal İNce
Erdal İNce
ETErcan Tutar
Ercan Tutar
ÜDÜLker DoğRu
ÜLker DoğRu
Background: Kawasaki disease (KD) is the leading cause of acquired heart disease in childhood in the developed countries. The objective of this study is to describe the clinical and epidemiological characteristics of children with KD in Turkey. Methods: The medical records of 24 patients treated for KD between January 1994 and June 2009 at Ankara University Medical School, Turkey were reviewed. Results: The male-to-female ratio was 1.4 : 1. The median age at diagnosis was 2 years (range: 6.5 months to 11 years). Conjunctivitis and changes in the lips and oral cavity were seen in 21/24 (87.5%), cervical lymphadenopathy 17/24 (70.8%), polymorphous rash 16/24 (66.7%) and peripheral changes in 12/24 (50%). Coronary artery abnormality (CAA) was observed in 8/24 (33.3%) cases. CAA was seen in both the complete and incomplete groups with similar frequency (31.3% vs. 37.5%, respectively). Conclusions: KD must be kept in mind in the differential diagnosis of infants with prolonged fever.

14 June 2011 in Mycoses
Verified
Journal Article
Closed access
PDF file
HOHalil Ozdemir
Halil Ozdemir
AKAdem Karbuz
Adem Karbuz
EÇErgin Çiftçi
Ergin Çiftçi
HDHandan Uğur Dinçaslan
Handan Uğur Dinçaslan
EIErdal İnCe
Erdal İnCe
ÜDÜlker Doğru
Ülker Doğru

6 May 2022 in The Pediatric Infectious Disease Journal
Verified
Journal Article
Closed access
OGon behalf of the TURK-COVID-19-Anosmia Study Group
on behalf of the TURK-COVID-19-Anosmia Study Group
AEAysegul Elvan-Tuz
Aysegul Elvan-Tuz
EKEda Karadag-Oncel
Eda Karadag-Oncel
SKSibel Kiran
Sibel Kiran
SKSaliha Kanik-Yüksek
Saliha Kanik-Yüksek
OTOzlem Teksam
Ozlem Teksam
Introduction: COVID-19-related anosmia is a remarkable and disease-specific finding. With this multicenter cohort study, we aimed to determine the prevalence of anosmia in pediatric cases with COVID-19 from Turkey and make an objective assessment with a smell awareness questionnaire. Material and Methods: This multicenter prospective cohort study was conducted with pediatric infection clinics in 37 centers in 19 different cities of Turkey between October 2020 and March 2021. The symptoms of 10.157 COVID-19 cases 10–18 years old were examined. Age, gender, other accompanying symptoms, and clinical severity of the disease of cases with anosmia and ageusia included in the study were recorded. The cases were interviewed for the smell awareness questionnaire at admission and one month after the illness. Results: Anosmia was present in 12.5% (1.266/10.157) of COVID-19 cases 10-18 years of age. The complete records of 1053 patients followed during the study period were analyzed. The most common symptoms accompanying symptoms with anosmia were ageusia in 885 (84%) cases, fatigue in 534 cases (50.7%), and cough in 466 cases (44.3%). Anosmia was recorded as the only symptom in 84 (8%) of the cases. One month later, it was determined that anosmia persisted in 88 (8.4%) cases. In the smell awareness questionnaire, the score at admission was higher than the score one month later (P < 0.001). Discussion: With this study, we have provided the examination of a large case series across Turkey. Anosmia and ageusia are specific symptoms seen in cases of COVID-19. With the detection of these symptoms, it should be aimed to isolate COVID-19 cases in the early period and reduce the spread of the infection. Such studies are important because the course of COVID-19 in children differs from adults and there is limited data on the prevalence of anosmia.

1 March 2011 in Journal of Pediatric Hematology/Oncology
Verified
Journal Article
Closed access
HOHalil Ozdemir
Halil Ozdemir
EÇErgin Çiftçi
Ergin Çiftçi
EIElif Ünal İnce
Elif Ünal İnce
MEMehmet Ertem
Mehmet Ertem
EIErdal İnce
Erdal İnce
ÜDÜlker Doğru
Ülker Doğru
Hemophagocytic lymphohistiocytosis (HLH) has not been described earlier in the context of 2009 pandemic influenza A (H1N1) virus infection, although certain populations are thought to be at risk for complicated pandemic influenza A disease. Here, we report the second case of HLH after infection with the influenza A H1N1 virus treated with peroral oseltamivir successfully.