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acinetobacter baumannii bloodstream infections

Grzegorz Ziółkowski, Iwona Pawłowska, Lech Krawczyk, Jadwiga Wojkowska-Mach
BACKGROUND: Acinetobacter baumannii strains are currently the most commonly isolated non-fermenting rods at Polish intensive care units (ICUs), and they are the dominant aetiological agents of pneumonia. This study aimed to evaluate the prevalence of A. baumannii isolated from patients who were hospitalised at Sosnowiec Hospital's ICU. We also investigated the drug sensitivity of A. baumannii in relation to antibiotic consumption expressed as the defined daily dose (DDD) and Clostridium difficile infection (CDI)...
March 13, 2018: Journal of Infection and Public Health
Agnieszka Chmielarczyk, Monika Pobiega, Grzegorz Ziółkowski, Monika Pomorska-Wesołowska, Dorota Romaniszyn, Lech Krawczyk, Jadwiga Wójkowska-Mach
BACKGROUND: The impact of multidrug-resistant organisms (MDROs), including non-fermentative bacilli (NFBs), is rising and underestimated, especially in intensive care units (ICUs). The growing prevalence of multidrug resistance (MDR) and extensive drug resistance (XDR) is challenging for clinicians, as the treatment options are limited. OBJECTIVES: The purpose of this study was to analyze the extent of the epidemiological problem of multidrugresistant, extensively drug-resistant and pandrug-resistant (PDR) non-fermentative bacilli isolated from pneumonia and bloodstream infections (BSIs) in patients hospitalized in southern Poland...
March 13, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Irem Serifoglu, Balam Er Dedekarginoglu, Serife Savas Bozbas, Sule Akcay, Mehmet Haberal
OBJECTIVES: Acinetobacter baumannii, depending on the immune status of the host, may result in one of the most serious hospital infections. Infections involving A. baumannii infection have been recently rising. However, little is known about the clinical features of A. baumannii infection in solid-organ transplant recipients. We aimed to share our clinical experiences with A. baumannii infection in our transplant recipients. MATERIALS AND METHODS: Between 2011 and 2017, 41 solid-organ transplant patients developed A...
March 2018: Experimental and Clinical Transplantation
Iolanda Alves Braga, Paola Amaral de Campos, Paulo Pinto Gontijo Filho, Rosineide Marques Ribas
BACKGROUND: Healthcare-associated infection (HAI) represents a major problem for patient safety worldwide. AIM: To provide an up-to-date picture of the extent, aetiology, risk factors and patterns of infections in intensive care units (ICUs) in 28 Brazilian hospitals of different sizes. METHODS: A one-day point prevalence survey in 2016 enrolled the ICU of hospitals from the 12 meso regions located in the State of Minas Gerais, Southeast region of Brazil...
March 6, 2018: Journal of Hospital Infection
Małgorzata Kołpa, Marta Wałaszek, Agnieszka Gniadek, Zdzisław Wolak, Wiesław Dobroś
Healthcare-associated infections (HAIs) occurring in patients treated in an intensive care unit (ICU) are serious complications in the treatment process. Aetiological factors of these infections can have an impact on treatment effects, treatment duration and mortality. The aim of the study was to determine the prevalence and microbiological profile of HAIs in patients hospitalized in an ICU over a span of 10 years. The active surveillance method was used to detect HAIs in adult patients who spent over 48 h in a general ICU ward located in southern Poland between 2007 and 2016...
January 11, 2018: International Journal of Environmental Research and Public Health
Sainfer Aliyu, Bevin Cohen, Jianfang Liu, Elaine Larson
Background: Bloodstream infection present on hospital admission (BSI-POA) is a major cause of morbidity and mortality. The purpose of this study was to measure prevalence and describe the risk factors of patients with BSI-POA and to determine the prevalence of resistance in isolates by admission source. Methods: We conducted a retrospective cohort study of patients discharged from three hospitals in New York City between 2006 and 2014. BSI-POA was defined as BSI diagnosed within 48 h of hospitalisation...
January 2018: Journal of Infection Prevention
Christian M Harding, Seth W Hennon, Mario F Feldman
Acinetobacter baumannii is a nosocomial pathogen that causes ventilator-associated as well as bloodstream infections in critically ill patients, and the spread of multidrug-resistant Acinetobacter strains is cause for concern. Much of the success of A. baumannii can be directly attributed to its plastic genome, which rapidly mutates when faced with adversity and stress. However, fundamental virulence mechanisms beyond canonical drug resistance were recently uncovered that enable A. baumannii and, to a limited extent, other medically relevant Acinetobacter species to successfully thrive in the health-care environment...
December 18, 2017: Nature Reviews. Microbiology
M Aydın, Ö Ergönül, A Azap, H Bilgin, G Aydın, S A Çavuş, Y Z Demiroğlu, H E Alışkan, O Memikoğlu, Ş Menekşe, Ş Kaya, N A Demir, I Karaoğlan, S Başaran, Ç Hatipoğlu, Ş Erdinç, E Yılmaz, A Tümtürk, Y Tezer, H Demirkaya, Ş E Çakar, Ş Keske, S Tekin, C Yardımcı, Ç Karakoç, P Ergen, Ö Azap, L Mülazımoğlu, O Ural, F Can, H Akalın
This article describes the emergence of resistance and predictors of fatality for 1556 cases of healthcare-associated Gram-negative bloodstream infection in 2014 and 2015. The colistin resistance rate in Klebsiella pneumoniae was 16.1%, compared with 6% in 2013. In total, 660 (42.4%) cases were fatal. The highest fatality rate was among patients with Acinetobacter baumannii bacteraemia (58%), followed by Pseudomonas aeruginosa (45%), Klebsiella pneumoniae (41%), Enterobacter cloacae (32%) and Escherichia coli (28%)...
December 15, 2017: Journal of Hospital Infection
Seong Yeon Park, Eun Jung Lee, Tark Kim, Shi Nae Yu, Ki-Ho Park, Mi Suk Lee, Se Yoon Park, Min Hyok Jeon, Tae Hyong Kim, Eun Ju Choo
Carbapenem-resistant Acinetobacter baumannii complex (CRABC) is an emerging pathogen that causes bloodstream infections and nosocomial pneumonia. This study aimed to describe severe infection associated with CRABC bacteraemic pneumonia and to investigate risk factors for 28-day mortality. All patients aged ≥18 years with CRABC bacteraemic pneumonia were enrolled retrospectively at five teaching hospitals in South Korea. Empirical antimicrobial therapy was defined as appropriate if administration of at least one antimicrobial agent, to which the causative pathogen was susceptible, for >48 h, within 5 days of the onset of bacteraemia...
November 6, 2017: International Journal of Antimicrobial Agents
Kirati Kengkla, Khachen Kongpakwattana, Surasak Saokaew, Anucha Apisarnthanarak, Nathorn Chaiyakunapruk
Objectives: To comprehensively compare and rank the efficacy and safety of available treatment options for patients with MDR and XDR Acinetobacter baumannii (AB) infection. Methods: We searched PubMed, Embase and the Cochrane register of trials systematically for studies that examined treatment options for patients with MDR- and XDR-AB infections until April 2016. Network meta-analysis (NMA) was performed to estimate the risk ratio (RR) and 95% CI from both direct and indirect evidence...
October 24, 2017: Journal of Antimicrobial Chemotherapy
Y Li, X Cao, H Ge, Y Jiang, H Zhou, W Zheng
BACKGROUND: Nosocomial infections (NIs) impact care and costs in hospitals across the globe. There are few data on targeted surveillance of NI in intensive care units (ICUs), and data specific to the risk factors for NI are especially limited. METHODS: One hundred and seventy-six secondary and tertiary hospitals performed NI targeted surveillance in their ICUs. The data were collected and summarized by Minke software, then fed back once per quarter. FINDINGS: The incidence of NI appeared to decrease, and the incidence of NI per 1000 patient-days and adjusted incidence were 25...
October 16, 2017: Journal of Hospital Infection
Aysegul Ulu-Kilic, Aycan Gundogdu, Fatma Cevahir, Huseyin Kilic, Tamer Gunes, Emine Alp
BACKGROUND: Extensively resistant Acinetobacter baumannii has emerged and spread worldwide as a significant cause of health care-associated infections and outbreaks. It also causes life-threatening infections among neonates, including bacteremia. The aim of this study was to investigate an outbreak of A baumannii bacteremia (ABB) among neonates. MATERIALS AND METHODS: A retrospective, case-control study was conducted from July 2014 to July 2015 in a neonatal intensive care unit (NICU)...
September 25, 2017: American Journal of Infection Control
Agnieszka Chmielarczyk, Monika Pobiega, Dorota Romaniszyn, Jadwiga Wójkowska-Mach
Non-fermentative Gram-negative bacilli are now one of the most important causes of severe infections in Polish hospitals. Acinetobacter species are serious concern because of the high prevalence of multi-drug resistance among strains. Resistance profiles for 53 Gram-negative non-fermentative blood isolates were done. MLST was carried out using 44 strains representing the most commonly isolated species: A. baumannii, P. aeruginosa, and S. maltophilia. MLST revealed that all 22 A. baumannii belonged to sequence type (ST) 2...
September 22, 2017: Folia Microbiologica
Timothy L Wiemken, Stephen P Furmanek, William A Mattingly, Marc-Oliver Wright, Annuradha K Persaud, Brian E Guinn, Ruth M Carrico, Forest W Arnold, Julio A Ramirez
BACKGROUND: Although not all health care-associated infections (HAIs) are preventable, reducing HAIs through targeted intervention is key to a successful infection prevention program. To identify areas in need of targeted intervention, robust statistical methods must be used when analyzing surveillance data. The objective of this study was to compare and contrast statistical process control (SPC) charts with Twitter's anomaly and breakout detection algorithms. METHODS: SPC and anomaly/breakout detection (ABD) charts were created for vancomycin-resistant Enterococcus, Acinetobacter baumannii, catheter-associated urinary tract infection, and central line-associated bloodstream infection data...
September 12, 2017: American Journal of Infection Control
E Kousouli, O Zarkotou, L Politi, K Polimeri, G Vrioni, K Themeli-Digalaki, A Tsakris, S Pournaras
We evaluated an infection control (IC) program influenced by personnel and material resource shortages on the incidence of bloodstream infections (BSI) due to carbapenem-resistant Klebsiella pneumoniae (CRKP), Acinetobacter baumannii (CRAB), and Pseudomonas aeruginosa (CRPA) in an endemic region. Between January 2010 and December 2015, all BSI episodes caused by CRKP, CRAB, and CRPA were recorded. An IC bundle was implemented in January 2012. We evaluated the effect of the interventions on BSI rates between the pre-intervention (2010-2011) and intervention (2012-2013) periods, using an interrupted time-series model...
September 6, 2017: European Journal of Clinical Microbiology & Infectious Diseases
Matthaios Papadimitriou-Olivgeris, Fotini Fligou, Anastasia Spiliopoulou, Kyriaki Koutsileou, Fevronia Kolonitsiou, Aikaterini Spyropoulou, Anastasia Zotou, Markos Marangos, Evangelos D Anastassiou, Myrto Christofidou, Iris Spiliopoulou
PURPOSE: Acinetobacter baumannii and Pseudomonas aeruginosa provoke serious infections, especially in intensive care unit (ICU) patients. METHODOLOGY: The risk factors and predictors of mortality for P. aeruginosa (n=84; 46 carbapenem-resistant) and A. baumannii (n=129; all carbapenem-resistant) bloodstream infections (BSIs) in an ICU were evaluated. Antibiotic susceptibility testing was performed using the agar disk diffusion method according to EUCAST guidelines...
July 31, 2017: Journal of Medical Microbiology
Tzu-Chao Lin, Rui-Xin Wu, Chih-Chien Chiu, Ya-Sung Yang, Yi Lee, Jung-Chung Lin, Feng-Yee Chang
BACKGROUND/PURPOSE: Bloodstream infection is a leading cause of mortality among burn patients. This study aimed to evaluate the risk factors, causative pathogens, and the relationship between bloodstream infections and other infections among burn patients from the Formosa Fun Coast Dust Explosion. METHODS: This retrospective study evaluated the demographic and clinical characteristics, infection types, causative pathogen(s), and isolates' antibiotic susceptibilities from patients who were hospitalized between June 27 and September 31, 2015...
June 22, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
Chung-Ting Chen, Yung-Chih Wang, Shu-Chen Kuo, Fang-Huy Shih, Te-Li Chen, Chorng-Kuang How, Ya-Sung Yang, Yi-Tzu Lee
BACKGROUND: Acinetobacter baumannii is an important nosocomial pathogen worldwide. Its role in community-acquired infection remains controversial and has rarely been reported. METHODS: Patients with monobacterial bloodstream infections caused by genomic species identified A. baumannii, admitted to Taipei Veterans General Hospital between 1999 and 2010, were selected as cases. Controls were defined as patients acquiring infection in a healthcare setting and were matched for age and sex...
June 29, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
C Q Tang, J Q Li, B M Shou, B H Pan, T S Chen, Y Q Xiao, X P Zheng, S C Xiao, Q Tan, Z F Xia
OBJECTIVES: To determine the characteristics of bloodstream infections (BSIs) and to evaluate the impact of BSIs on mortality in severe burn patients. METHODS: A retrospective observational study was conducted in 20 tertiary hospitals. A total of 185 patients who experienced a massive dust explosion in eastern China were included. RESULTS: After exclusion, 177 patients were analysed. The median total body surface area (TBSA) burned was 95% (interquartile range 85%-98%)...
February 2018: Clinical Microbiology and Infection
Joseph P Lynch, George G Zhanel, Nina M Clark
Bacteria within the genus Acinetobacter (principally A. baumannii - calcoaceticus complex [ABC]) are gram-negative coccobacilli that may cause nosocomial infections in critically ill or debilitated patients (particularly ventilator-associated pneumonia and infections of the bloodstream, urinary tract, and wounds). Treatment of Acinetobacter infections is difficult, as Acinetobacter spp. are intrinsically resistant to multiple antimicrobial agents, and have a remarkable ability to acquire new resistance determinants via mechanisms that include plasmids, transposons, integrons, and resistance islands...
June 2017: Seminars in Respiratory and Critical Care Medicine
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