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https://www.readbyqxmd.com/read/29118410/the-microbiological-characteristics-and-risk-factors-for-picc-related-bloodstream-infections-in-intensive-care-unit
#1
Shumin Zhang, Xiaofeng Sun, Yan Lei
The study was aimed to investigate the pathogens distribution and risk factors for PICC-related bloodstream infection in intensive care unit (ICU) patients. 402 patients placed with PICC in ICU were recruited in the study. The microbiological characteristics of PICC-related infection were investigated by Vitek 2 Compact automated microbial system. Antibiotics sensitivity was performed with disk diffusion and minimum inhibitory concentration (MIC) methods. Multivariate logistic and cox analyses were performed to identify the risk factors for PICC-related infection in ICU patients...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29091221/screening-for-synergistic-activity-of-antimicrobial-combinations-against-carbapenem-resistant-enterobacteriaceae-using-inkjet-printer-based-technology
#2
Thea Brennan-Krohn, Katherine A Truelson, Kenneth P Smith, James E Kirby
Background: Synergistic combination antimicrobial therapy may provide new options for treatment of MDR infections. However, comprehensive in vitro synergy data are limited and facile methods to perform synergy testing in a clinically actionable time frame are unavailable. Objectives: To systematically investigate a broad range of antibiotic combinations for evidence of synergistic activity against a collection of carbapenem-resistant Enterobacteriaceae (CRE) isolates...
October 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29066921/prevalence-incidence-burden-and-clinical-impact-of-healthcare-associated-infections-and-antimicrobial-resistance-a-national-prevalent-cohort-study-in-acute-care-hospitals-in-greece
#3
Evangelos I Kritsotakis, Flora Kontopidou, Eirini Astrinaki, Maria Roumbelaki, Eleni Ioannidou, Achilles Gikas
BACKGROUND: Assessing the overall burden of healthcare-associated infections (HAIs) is challenging, but imperative in evaluating the cost-effectiveness of infection control programs. This study aimed to estimate the point prevalence and annual incidence of HAIs in Greece and assess the excess length of stay (LOS) and mortality attributable to HAIs, overall and for main infection sites and tracer antimicrobial resistance (AMR) phenotypes and pathogens. PATIENTS AND METHODS: This prevalent cohort study used a nationally representative cross-section of 8,247 inpatients in 37 acute care hospitals to record active HAIs of all types at baseline and overall LOS and in-hospital mortality up to 90 days following hospital admission...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/29064133/-double-carbapenem-and-oral-fosfomycin-for-the-treatment-of-complicated-urinary-tract-infections-caused-by-blandm-harboring-enterobacteriaceae-in-kidney-transplantation
#4
Rossana Rosa, Susan D Rudin, Laura J Rojas, Andrea M Hujer, Armando Perez-Cardona, Federico Perez, Robert A Bonomo, Octavio Martinez, Lilian M Abbo, Jose F Camargo
Infections with carbapenemase-producing carbapenem-resistant Enterobacteriaceae represent an emergent problem worldwide. Treatment of infections caused by New Delhi metallo-beta-lactamase (NDM)-harboring Enterobacteriaceae is particularly challenging as it frequently involves the use of nephrotoxic agents, which is problematic in kidney transplant recipients and non-renal transplants with marginal kidney function. We present two cases of urinary tract infections caused by NDM-harboring Enterobacteriaceae successfully treated with a combination of "double carbapenem" and oral fosfomycin...
October 24, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29058515/prevalence-and-molecular-characterization-of-new-delhi-metallo-beta-lactamases-in-multidrug-resistant-pseudomonas-aeruginosa-and-acinetobacter-baumannii-from-india
#5
Mohibur Rahman, Kashi Nath Prasad, Shefali Gupta, Sanjay Singh, Avinash Singh, Ashutosh Pathak, Kamlesh Kumar Gupta, Saheem Ahmad, Bruno Gonzalez Zorn
New Delhi metallo-beta-lactamase (NDM)-mediated carbapenem resistance in Pseudomonas aeruginosa and Acinetobacter baumannii is a major concern. We investigated the presence of NDM and its variants in P. aeruginosa and A. baumannii at a tertiary hospital in North India. A total of 236 isolates (130 P. aeruginosa and 106 A. baumannii) were included; 38 (29.23%) P. aeruginosa and 20 A. baumannii isolates (18.8%) were resistant to carbapenems and all of them were blaNDM positive. All 38 carbapenem-resistant P. aeruginosa harbored blaNDM-1, while 12 (60%) of 20 A...
October 23, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29030025/emerge-of-blandm-1-and-blaoxa-48-like-harboring-carbapenem-resistant-klebsiella-pneumoniae-isolates-from-hospitalized-patients-in-southwestern-iran
#6
Zahra Hosseinzadeh, Hadi Sedigh Ebrahim-Saraie, Jamal Sarvari, Jalal Mardaneh, Behzad Dehghani, Seyed Mohammad Hossein Rokni-Hosseini, Mohammad Motamedifar
BACKGROUND: One of the most important emerging carbapenem-resistant bacteria is Klebsiella pneumoniae (K. pneumoniae). The present study aimed to investigate the antibiotic susceptibility pattern of K. pneumoniae isolates and detection of carbapenemase producing K. pneumoniae obtained from Iranian hospitalized patients. METHODS: This cross-sectional study was performed on 211 K. pneumoniae isolates which were recovered from different clinical specimens from 2014 to 2015...
October 10, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/29020980/identification-of-76-novel-b1-metallo-%C3%AE-lactamases-through-large-scale-screening-of-genomic-and-metagenomic-data
#7
Fanny Berglund, Nachiket P Marathe, Tobias Österlund, Johan Bengtsson-Palme, Stathis Kotsakis, Carl-Fredrik Flach, D G Joakim Larsson, Erik Kristiansson
BACKGROUND: Metallo-β-lactamases are bacterial enzymes that provide resistance to carbapenems, the most potent class of antibiotics. These enzymes are commonly encoded on mobile genetic elements, which, together with their broad substrate spectrum and lack of clinically useful inhibitors, make them a particularly problematic class of antibiotic resistance determinants. We hypothesized that there is a large and unexplored reservoir of unknown metallo-β-lactamases, some of which may spread to pathogens, thereby threatening public health...
October 12, 2017: Microbiome
https://www.readbyqxmd.com/read/28984751/bla-oxa48-gene-microorganisms-outbreak-in-a-tertiary-children-s-hospital-over-3-years-2012-2014-case-report
#8
Rafael Herruzo, Guillermo Ruiz, Veronica Perez-Blanco, Sara Gallego, Eduardo Mora, Maria Jose Vizcaino, Felix Omeñaca
RATIONALE: Carbapenem-resistant Enterobacteriaceae are an emerging problem in children. Nosocomial spread remains the principal risk factor for acquisition of these microorganisms. PATIENTS CONCERNS: We describe an outbreak of Klebsiella pneumoniae OXA48 (KOXA48) in a tertiary children's hospital during the years 2012 to 2014, as well as the preventive measures put in place in colonized and infected cases. DIAGNOSES: We studied, "in vitro," the KOXA48 susceptibility to antiseptics and surface disinfectants...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28966485/evaluation-of-different-phenotypic-tests-for-detection-of-metallo-%C3%AE-lactamases-in-imipenem-resistant-pseudomonas-aeruginosa
#9
Rohit Sachdeva, Babita Sharma, Rajni Sharma
PURPOSE: Pseudomonas aeruginosa causes a wide spectrum of infections including bacteremia, pneumonia, urinary tract infection, etc., Metallo-beta-lactamase (MBL) producing P. aeruginosa is an emerging threat and cause of concern as they have emerged as one of the most feared resistance mechanisms. This study was designed to know the prevalence of MBL production in P. aeruginosa and to evaluate the four phenotypic tests for detection of MBL production in imipenem-resistant clinical isolates of P...
October 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28904920/antimicrobial-susceptibility-pattern-of-extended-spectrum-beta-lactamases-producing-organisms-isolated-in-a-tertiary-care-hospital-bangladesh
#10
Mohammad Jobayer, Zeenat Afroz, Sultana Shazeda Nahar, Ayesha Begum, Shahin Ara Begum, S M Shamsuzzaman
CONTEXT: Infection caused by extended-spectrum beta-lactamases (ESBL) producing organism is a major problem regarding antibiotic resistance. AIMS: The aim of this study was to find out the antibiogram of ESBL producing organisms isolated from various samples. SETTINGS AND DESIGN: This cross-sectional study was carried out in the Department of Microbiology of a Tertiary Care Hospital, Dhaka, Bangladesh from January to June 2014. SUBJECTS AND METHODS: One Hundred and seventy-nine ESBL producing Gram-negative organisms detected phenotypically by double-disc synergy test were enrolled in this study...
July 2017: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/28743810/polymyxin-combinations-combat-escherichia-coli-harboring-mcr-1-and-blandm-5-preparation-for-a-postantibiotic-era
#11
Zackery P Bulman, Liang Chen, Thomas J Walsh, Michael J Satlin, Yuli Qian, Jürgen B Bulitta, Charles A Peloquin, Patricia N Holden, Roger L Nation, Jian Li, Barry N Kreiswirth, Brian T Tsuji
The rapid increase of carbapenem resistance in Gram-negative bacteria has resurrected the importance of the polymyxin antibiotics. The recent discovery of plasmid-mediated polymyxin resistance (mcr-1) in carbapenem-resistant Enterobacteriaceae serves as an important indicator that the golden era of antibiotics is under serious threat. We assessed the bacterial killing of 15 different FDA-approved antibiotics alone and in combination with polymyxin B in time-killing experiments against Escherichia coli MCR1_NJ, the first reported isolate in the United States to coharbor mcr-1 and a New Delhi metallo-β-lactamase gene (blaNDM-5)...
July 25, 2017: MBio
https://www.readbyqxmd.com/read/28708458/effectiveness-of-a-double-carbapenem-regimen-in-a-kpc-producing-klebsiella-pneumoniae-infection-in-an-immunocompromised-patient
#12
Nuria Piedra-Carrasco, Lucia Miguel, Anna Fàbrega, Belén Viñado, David Campany, Alba Mir, María Laura Fox, Benito Almirante, Nieves Larrosa, Isabel Ruiz-Camps, Juan José González-López
The progressive increase of infections produced by extensively drug-resistant carbapenemase-producing Klebsiella pneumoniae (XDR-CPKP) represents an important threat to public health. Unfortunately, optimal therapeutic options are scarce. Retrospective studies have recommended combined therapy with more than one antibiotic and, more recently, a double-carbapenem regimen has been reported to be an effective alternative therapy. Here, we describe an episode of sepsis in an immunocompromised patient after allogeneic hematopoietic stem cell transplantation, caused by an XDR-CPKP...
July 14, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28706386/alarming-emergence-molecular-characterization-and-outcome-of-blandm-1-in-patients-infected-with-multidrug-resistant-gram-negative-bacilli-in-a-tertiary-care-hospital
#13
Huma Naim, Meher Rizvi, Mohd Azam, Richa Gupta, Neelam Taneja, Indu Shukla, Haris M Khan
INTRODUCTION: This study was conducted to assess the prevalence of metallo-beta-lactamases (MBLs) in general and blaNDM-1 in particular. It also aimed at evaluating clinical characteristics and outcome in patients infected with MBLs. MATERIALS AND METHODS: A total of 116 carbapenem-resistant Gram-negative bacilli (CRGNB) were evaluated in the study. These CRGNB were tested for MBL production both phenotypically for MBLs and genotypically for blaNDM-1 gene by polymerase chain reaction (PCR)...
July 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28695756/double-carbapenem-therapy-dct-for-bacteremia-due-to-carbapenem-resistant-klebsiella-pneumoniae-crkp-from-test-tube-to-clinical-practice
#14
Veena Venugopalan, Boris Nogid, Thy N Le, Shafiqur M Rahman, Tiffany E Bias
No abstract text is available yet for this article.
November 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28679413/double-carbapenem-as-a-rescue-strategy-for-the-treatment-of-severe-carbapenemase-producing-klebsiella-pneumoniae-infections-a-two-center-matched-case-control-study
#15
Gennaro De Pascale, Gennaro Martucci, Luca Montini, Giovanna Panarello, Salvatore Lucio Cutuli, Daniele Di Carlo, Valentina Di Gravio, Roberta Di Stefano, Guido Capitanio, Maria Sole Vallecoccia, Piera Polidori, Teresa Spanu, Antonio Arcadipane, Massimo Antonelli
BACKGROUND: Recent reports have suggested the efficacy of a double carbapenem (DC) combination, including ertapenem, for the treatment of carbapenem-resistant Klebsiella pneumoniae (CR-Kp) infections. We aimed to evaluate the clinical impact of such a regimen in critically ill patients. METHODS: This case-control (1:2), observational, two-center study involved critically ill adults with a microbiologically documented CR-Kp invasive infection treated with the DC regimen matched with those receiving a standard treatment (ST) (i...
July 5, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28660131/successful-treatment-of-multidrug-resistant-klebsiella-pneumoniae-using-dual-carbapenem-regimen-in-immunocompromised-patient
#16
Wasim S El Nekidy, Mohamed Y Mooty, Nizar Attallah, Lyssette Cardona, Maria Fernanda Bonilla, Islam M Ghazi
This report describes a longitudinal case of immunocompromised patient post kidney transplant who was admitted to our institution repeatedly for treatment of various infections caused by multi-drug resistant Klebsiella pneumoniae. The patient was successfully treated with a combination of ertapenem/meropenem on multiple occasions despite the elevated MICs. Our observations corroborate previous preclinical studies and case reports showing the efficacy of double carbapenem regimens against resistant Enterobacteriaceae...
2017: IDCases
https://www.readbyqxmd.com/read/28533243/roles-of-ramr-and-tet-a-mutations-in-conferring-tigecycline-resistance-in-carbapenem-resistant-klebsiella-pneumoniae-clinical-isolates
#17
Sheng-Kang Chiu, Li-Yueh Huang, Hsi Chen, Yu-Kuo Tsai, Ci-Hong Liou, Jung-Chung Lin, L Kristopher Siu, Feng-Yee Chang, Kuo-Ming Yeh
Tigecycline is regarded as a last-resort treatment for carbapenem-resistant Klebsiella pneumoniae (CRKP) infections, but increasing numbers of tigecycline-resistant K. pneumoniae isolates have been reported. The tigecycline resistance mechanisms in CRKP are undetermined. This study aimed to elucidate the mechanisms underlying tigecycline resistance in 16 tigecycline- and carbapenem-resistant K. pneumoniae (TCRKP) isolates. Mutations in tigecycline resistance determinant genes [ramR, acrR, oqxR, tet(A), tet(L), tet(X), tet(M), rpsJ] were assessed by PCR amplicon sequencing, and mutations in ramR and tet(A) exhibited high prevalences individually (81%) and in combination (63%)...
August 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28493162/single-setting-endoscopic-retrograde-cholangiopancreatography-ercp-and-cholecystectomy-improve-the-rate-of-surgical-site-infection
#18
Michele M Loor, Jean Dominique Morancy, James K Glover, Gregory J Beilman, Catherine L Statz
INTRODUCTION: Cholecystectomy is a common surgical procedure. The presence of common bile duct stones complicates treatment, often requiring a second procedure for stone retrieval. For such patients, endoscopic retrograde cholangiopancreatography (ERCP) provides adequate therapy, and can be performed before, after, or at the same time as cholecystectomy. In 2013, duodenoscopes were implicated by the Centers for Disease Control and Prevention in transmission of carbapenem-resistant Enterobacteriaceae...
May 10, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28466078/subcapsular-kidney-urinoma-after-percutaneous-nephrolithotomy
#19
Eugenio Di Grazia, Letterio D'Arrigo, Alberto Saita, Giuseppe Giordano, Giuseppe Russo, Giuseppe Morgia, Pasquale La Rosa
Background: A rare percutaneous nephrolithotomy (PCNL) complication and its management is reported. Case Presentation: A male patient, 43 years of age, underwent PCNL for a large left pyelocaliceal stone. Surgery was performed in the Valdivia-Galdakao supine position. The percutaneous tract was established by combined radiologic and sonographic guidance. The tract was dilated by balloon and a 24F Amplatz sheath was located. As complete clearance was not achieved because of a residual lower pole caliceal stone, a ureteral Double-J and a 20F nephrostomy were located for a second-look PCNL through the same tract after 7 days...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28458485/phenotypic-detection-of-extended-spectrum-beta-lactamase-and-carbapenemase-co-producing-clinical-isolates-from-two-tertiary-hospitals-in-kano-north-west-nigeria
#20
Yusuf Ibrahim, Yahaya Sani, Qabli Saleh, Algarni Saleh, Gbadamosi Hakeem
BACKGROUND: Continue rise in unprofessional use of antibiotics in our hospitals and communities is worrisome. A research study was therefore conducted to detect extended spectrum beta-lactamase (ESBL), carbapenemase, metallobeta lactamase and their co-production phenotypically from isolates obtained from patients admitted to or attending two tertiary hospitals in Kano, Nigeria. METHOD: A total of 248 isolates of Escherichia coli and Klebsiella pneumoniaewere screened phenotypically for ESBL production and carbapenemase production according to CLS1 2012 breakpoints using double disk synergy test and modified Hodge test (MHT) respectively...
January 2017: Ethiopian Journal of Health Sciences
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