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    Comparison of colistin monotherapy and non-colistin combinations in the treatment of multi-drug resistant Acinetobacter spp. bloodstream infections: A Multicenter retrospective analysis
    (MEDKNOW PUBLICATIONS & MEDIA PVT LTD, 2015) Balkan, Ilker Inanc; Batirel, Ayse; Karabay, Oguz; Agalar, Canan; Akalin, Serife; Alici, Ozlem; Alp, Emine; Altay, Fatma Aybala; Altin, Nilgun; Arslan, Ferhat; Aslan, Turan; Bekiroglu, Nural; Cesur, Salih; Celik, Aygul Dogan; Dogan, Mustafa; Durdu, Bulent; Duygu, Fazilet; Engin, Aynur; Engin, Derya Ozturk; Gonen, Ibak; Guciu, Ertugrul; Guven, Tumer; Hatipogiu, Cigdem Ataman; Hosoglu, Salih; Karahocagil, Mustafa Kasim; Kilic, Aysegul Ulu; Ormen, Bahar; Ozdemir, Davut; Ozer, Serdar; Oztoprak, Nefise; Sezak, Nurbanu; Turhan, Vedat; Turker, Nesrin; Yilmaz, Hava
    Objectives: To compare the efficacy of colistin (COL) monotherapy versus non-COL based combinations in the treatment of bloodstream infections (BSIs) due to multidrug resistant Acinetobacter spp.(MDR-A) . Materials and Methods: Retrospective data of 107 MDR-A BSI cases from 27 tertiary centers in Turkey were included. Primary End-Point: 14-day mortality. Secondary End-Points: Microbial eradication and clinical improvement. Results: Thirty-six patients in the COL monotherapy (CM) group and 71 in the non-COL based combinations (NCC) group were included in the study. Mean age was 59.98 20 years (range: 18-89) and 50.5% were male. Median duration of follow-up was 40 days (range: 9-297). The 14-day survival rates were 52.8% in CM and 47.23% in NCC group (P = 0.36). Microbiological eradication was achieved in 69% of CM and 83% of NCC group (P = 0.13). Treatment failure was detected in 22.9% of cases in both CM and NCC groups. Univariate analysis revealed that mean age (P = 0.001), Charlson comorbidity index (P = 0.03), duration of hospital stay before MDR-A BSI (P = 0.04), Pitt bacteremia score (P = 0.043) and Acute Physiology and Chronic Health Evaluation II score (P = 0.05) were significant in terms of 14-day mortality. Advanced age (P = 0.01) and duration of hospital stay before MDR-A BSI (P = 0.04) were independently associated with 14-day mortality in multivariate analysis. Conclusion: No significant difference was detected between CM and non-COL based combinations in the treatment of MDR-A BSIs in terms of efficacy and 14-day mortality.
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    EFFICACY OF COLISTIN AND NON-COLISTIN MONOTHERAPIES IN MULTI-DRUG RESISTANT ACINETOBACTER BAUMANNII BACTEREMIA/SEPSIS
    (CARBONE EDITORE, 2014) Karabay, Oguz; Batirel, Ayse; Balkan, Ilker Inanc; Agalar, Canan; Akalin, Serife; Alici, Ozlem; Alp, Emine; Alta, F. Aybala; Altin, N.; Arslan, Ferhat; Aslan, Turan; Bekiroglu, Nural; Cesur, Salim; Celik, Aygul Dogan; Dogan, Mustafa; Durdu, Bulent; Duygu, Fazilet; Engin, Aynur; Engin, Derya Ozturk; Gonen, Ibak; Guclui, Ertugrul; Guven, Tumer; Hatipoglu, Cigdem Ataman; Hosoglu, Salih; Karahocagil, Mustafa; Kilic, Aysegul Ulu; Ormen, Bahar; Ozdemir, Davut; Ozer, Serdal; Oztoprak, Nefise; Sezak, Nurbanu; Turhan, Vedat; Turker, N.; Yilmaz, Hava
    Objective: This retrospective study aimed to investigate the efficacies of colistin and non-colistin monotherapies in multi-drug resistant Acinetobacter baumannii bacteremia (MDR-AB). Materials and methods: Cases with MDR-AB from 27 tertiary-referral hospitals between January 2009 and December 2012 were included. Patients' data that were on either colistin monotherapy (CM) or non-colistin monotherapy (NCM) were compared. Mortality on Day 14 was the primary endpoint, whereas microbiological eradication and clinical outcome were the secondary ones. Results: Eighty-four cases were included in the study with 36 being in the CM group and 48 in the NCM group. Thirty-eight (452%) cases were male and the mean age was 602 years. The mean durations of pre-MDR-AB hospital stay and intensive care unit stay were 25.8 days and 20.9 days, respectively. All of the cases had fever (>38 degrees C). The mean Pitt bacteremia score (PBS) of the patients was calculated as 6.8, APACHE 2 score as 18.9 and the Charlson co-morbidity index (CCI) as 3.7 (CM: 3.6 vs. NCM: 3.9). Twenty (55.6%) cases in the CM group and 26 cases in the NCM group (542%) (p=0.81) died; 9 cases in the CM group (25%) and 16 cases in the NCM group (33 3%) had treatment failure (P=0.55). Bacteriological eradication was achieved in 20 (55.6%) cases in the CM group and in 36 cases (75%) in the NCM group (P=0.061). Conclusions: No significant difference could be identified between the colistin monotherapy and non-colistin monotherapy options in MDR-AB cases with respect to the results of efficacy and 14-day mortality.
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    International Nosocomial Infection Control Consortium (INICC) national report on device-associated infection rates in 19 cities of Turkey, data summary for 2003-2012
    (BMC, 2014) Leblebicioglu, Hakan; Erben, Nurettin; Rosenthal, Victor Daniel; Atasay, Begum; Erbay, Ayse; Unal, Serhat; Senol, Gunes; Willke, Ayse; Ozgultekin, Asu; Altin, Nilgun; Bakir, Mehmet; Oncul, Oral; Ersoz, Gulden; Ozdemir, Davut; Yalcin, Ata Nevzat; Ozdemir, Halil; Yildizdas, Dincer; Koksal, Iftihar; Aygun, Canan; Sirmatel, Fatma; Sener, Alper; Tuna, Nazan; Akan, OTzay Arikan; Turgut, Huseyin; Demiroz, A. Pekcan; Kendirli, Tanil; Alp, Emine; Uzun, Cengiz; Ulusoy, Sercan; Arman, Dilek; Ozgunes, Ilhan; Usluer, Gaye; Kilic, Atila; Arsan, Saadet; Cabadak, Hatice; Sen, Suha; Gelebek, Yasemin; Zengin, Humeyra; Topeli, Arzu; Alper, Yusuf; Meric, Meliha; Azak, Emel; Inan, Asuman; Turan, Guldem; Haznedaroglu, Tuncer; Gorenek, Levent; Acar, Ali; Cesur, Salih; Engin, Aynur; Kaya, Ali; Kuyucu, Necdet; Geyik, Mehmet Faruk; Aydin, Ozlem Cetinkaya; Erdogan, Nurse Selvi; Turhan, Ozge; Gunay, Nurgul; Gumus, Eylul; Dursun, Oguz; Esen, Saban; Ulger, Fatma; Dilek, Ahmet; Yilmaz, Hava; Sunbul, Mustafa; Gokmen, Zeynel; Ozdemir, Sonay Incesoy; Horoz, Ozden Ozgur; Yylmaz, Gurdal; Kaya, Selcuk; Ulusoy, Hulya; Kucukoduk, Sukru; Ustun, Cemal; Baysal, Abant Izzet; Otkun, Metin; Tulunay, Melek; Oral, Mehmet; Unal, Necmettin; Cengiz, Mustafa; Yilmaz, Leyla; Sacar, Suzan; Sungurtekin, Hulya; Ugurcan, Dogac; Yetkin, M. Arzu; Bulut, Cemal; Erdinc, F. Sebnem; Hatipoglu, Cigdem Ataman; Ince, Erdal; Ciftci, Ergin; Odek, Caglar; Yaman, Ayhan; Karbuz, Adem; Aldemir, Bilge; Kilic, Aysegul Ulu; Arda, Bilgin; Bacakoglu, Feza; Hizel, Kenan
    Background: 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. Methods: 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. Results: 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). Conclusions: 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.
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    Paradoxical Reactions in Tuberculosis Treatment: Mechanisms, Diagnosis and Approach
    (Bilimsel Tip Yayinevi, 2024) Buyuktuna, Seyit Ali; Kurtaran, Behice; Ozsahin, Sefa Levent; Senol, Gunes; Kilic, Aysegul Ulu; Tasbakan, Meltem
    Paradoxical reactions (PR) refer to the worsening of clinical manifestations of tuberculosis (TB) after the initiation of TB treatment, particularly occurring during the recovery of immune function in immunocompromised individuals. This syndrome is also known as immune reconstitution inflammatory syndrome and is more common in human immunodeficiency virus (HIV)-infected individuals after the initiation of antiretroviral therapy (ART). Although the mechanisms of PR are not fully understood, excessive inflammatory responses triggered by increased antigen load and rapid immune response are considered the main cause. This is associated with a strong T-cell response to antigens of Mycobacterium tuberculosis. Paradoxical reactions in HIV-positive individuals after ART initiation is characterized by a sudden and intense activation of TB-fighting immune cells. Symptoms of PR include fever, lymphadenopathy, pulmonary infiltrates, and enlargement of existing TB lesions. A major diagnostic challenge is the exclusion of TB treatment-resistant mycobacterial infections or other infections. Management of PR mainly involves the continuation of TB and HIV treatment. Anti-inflammatory drugs, such as corticosteroids, can be used in severe PR cases. By reducing inflammation, corticosteroids can relieve the symptoms of the disease and improve the quality of life. However, the use of these drugs should be carefully monitored and side effects should be considered. Enhancing our understanding of the mechanisms behind paradoxical reactions and developing effective management strategies could significantly advance the fight against TB and HIV. This review aims to explore the mechanisms, diagnosis, and management strategies of paradoxical reactions in tuberculosis treatment.
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    Tularemia: potential role of cytopathology in differential diagnosis of cervical lymphadenitis: Multicenter experience in 53 cases and literature review
    (WILEY, 2014) Tuncer, Ersin; Onal, Binnur; Simsek, Gulcin; Elagoz, Sahande; Sahpaz, Ahmet; Kilic, Selcuk; Altuntas, Emine Elif; Kilic, Aysegul Ulu
    Tularemia is a zoonosis caused by Francisella tularensis. Tularemia outbreaks occurred in Central Anatolia during 2009 and 2011. We evaluated the clinical characteristics and cytomorphologies of fine needle aspirations (FNAs) from cervical lymph nodes in serologically confirmed tularemia cases. To our knowledge, this is the first large series concerning FNA morphology of Tularemia. FNA smears of 53 patients of the 290, diagnosed by microagglutination tests and PCR, were evaluated at three Pathology centers. FNAs were performed by cytopathologists or ear-nose-throat surgeons. Of all patients, 17 had also lymph node resections. FNAs showed the presence of suppuration and abscess. Rare epithelioid histiocytes and granulomas, seldom phagocytosed bacilli-like microorganisms were observed. On histopathology; granulomas, necrosis, and suppurative inflammation extending extracapsular areas were seen. Tularemia is endemic in certain areas of the Northern Hemisphere. The benefit from cytopathology is limited and cytological suspicion should be confirmed by serology. However FNA cytology is helpful in differential diagnosis of tularemia and other diseases presented with suppurative, granulomatous cervical lymphadenitis. It is also useful in providing the material for PCR and culture in early phase when the serology is negative and the treatment is more effective.