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pseudomonas aeruginosa review

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https://www.readbyqxmd.com/read/28110415/antimicrobial-combination-treatment-including-ciprofloxacin-decreased-the-mortality-rate-of-pseudomonas-aeruginosa-bacteraemia-a-retrospective-cohort-study
#1
M Paulsson, A Granrot, J Ahl, J Tham, F Resman, K Riesbeck, F Månsson
Ineffective antimicrobial therapy of Pseudomonas aeruginosa bacteraemia increases mortality. Recent studies have proposed the use of antimicrobial combination therapy composed of a beta-lactam with either ciprofloxacin or tobramycin. To determine if combination therapy correlates to lower mortality and is superior compared to monotherapy, we investigated the effect of antimicrobial treatment regimens on 30-day mortality in a cohort with Pseudomonas aeruginosa bacteraemia. All cases of P. aeruginosa bacteraemia (n = 292) in southwest Skåne County, Sweden (years 2005-2010, adult population 361,112) and the whole county (2011-2012, 966,130) were identified...
January 21, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28109554/clinical-and-microbiological-characteristics-of-bloodstream-infections-among-patients-with-haematological-malignancies-with-and-without-neutropenia-at-a-medical-centre-in-northern-taiwan-2008-2013
#2
Chien-Yuan Chen, Feng-Ming Tien, Wang-Huei Sheng, Shang-Yi Huang, Ming Yao, Jih-Luh Tang, Woei Tsay, Hwei-Fang Tien, Po-Ren Hsueh
This study aimed to investigate the epidemiology and microbiology of bloodstream infections (BSIs) in patients with haematological malignancies. Clinical characteristics and microbiology of 2083 patients with haematological malignancy who were treated for BSI from 2008 to 2013 at a medical centre in Taiwan were retrospectively reviewed. Lymphoma (38.1%) was the most common, followed by acute myeloid leukaemia (30.9%). Of the 2090 non-duplicate BSI isolates, 1310 (62.7%) were recovered from patients with neutropenia...
January 3, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28090415/non-melanoma-associated-dyschromia-of-the-proximal-nail-fold
#3
Nicole C DeMartinis, Philip R Cohen
Subungual melanoma with pigmentation beneath the nail that extends to involve the proximal nail fold is referred to as Hutchinson's sign. Black or brown subungual discoloration involving the proximal nail fold secondary to other etiologies has been referred to as pseudo-Hutchinson's sign. Three patients with nail discoloration and concurrent dyschromia of the proximal nail fold are described: a female with a chronic subungual hematoma and pseudo-Hutchinson's sign, a male with culture-confirmed Pseudomonas aeruginosa (P...
December 9, 2016: Curēus
https://www.readbyqxmd.com/read/28079697/infectious-loss-of-tissue-expanders-in-breast-reconstruction-are-we-treating-the-right-organisms
#4
Gabriel M Klein, Brett T Phillips, Alexander B Dagum, Duc T Bui, Sami U Khan
BACKGROUND: Postoperative infections following tissue expander-based breast reconstruction represent a significant threat to the reconstructive process. Studies have found the incidence to be as high as 29%. There has been abundant research into the risk factors associated with these infections, although very few studies have focused on the causative organisms. The purpose of this study was to investigate the bacterial flora associated with tissue expander infections after breast reconstruction...
February 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28057656/epidemiology-and-control-measures-of-outbreaks-due-to-antibiotic-resistant-organisms-in-europe-embargo-a-systematic-review-protocol
#5
Nithya Babu Rajendran, Beryl Primrose Gladstone, Jesús Rodríguez-Baño, Frangiscos Sifakis, Andreas Voss, Yehuda Carmeli, Francesco Robert Burkert, Panagiota Gkolia, Evelina Tacconelli
INTRODUCTION: Improving our understanding of outbreaks due to antibiotic-resistant bacteria (ARB) and their control is critical in the current public health scenario. The threat of outbreaks due to ARB requires multifaceted efforts. However, a global overview of epidemiological characteristics of outbreaks due to ARB and effective infection control measures is missing. In this paper, we describe the protocol of a systematic review aimed at mapping and characterising the epidemiological aspects of outbreaks due to ARB and infection control measures in European countries...
5, 2017: BMJ Open
https://www.readbyqxmd.com/read/28057163/ceftazidime-avibactam-who-says-you-can-t-teach-an-old-drug-new-tricks
#6
Katie E Barber, Jessica K Ortwine, Ronda L Akins
PURPOSE: Gram-negative resistance continues to rise with treatment options becoming more limited. Ceftazidime/avibactam was recently approved in the United States and Europe, which combines an established third-generation cephalosporin with a new, unique, non-β-lactam β-lactamase inhibitor. This review conducts a thorough examination of structure, pharmacology, spectrum of activity, pharmacokinetics/pharmacodynamics, in vitro and clinical efficacy and safety/tolerability of ceftazidime/avibactam, as well as detailed future directions for the agent...
October 2016: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28056745/exploiting-quorum-sensing-inhibition-for-the-control-of-pseudomonas-aeruginosa-and-acinetobacter-baumannii-biofilms
#7
Israel Castillo-Juarez, Luis Esaú López-Jácome, Gloria Soberón-Chávez, María Tomás, Jintae Lee, Paulina Castañeda-Tamez, Iván Ángelo Hernández-Bárragan, Martha Yumiko Cruz-Muñiz, Toshinari Maeda, Thomas K Wood, Rodolfo García-Contreras
Pseudomonas aeruginosa and Acinetobacter baumannii are two of the main bacteria responsible for nosocomial infections; both organisms are resistant to several classes of antibiotics making their infections very difficult to treat. Moreover, they possess a remarkable ability to form biofilms, which further enhances their antimicrobial resistance. Both organisms coordinate their formation of biofilms and their expression of virulence factors through quorum sensing, a system that regulates gene expression at high cell densities and that plays a key role in the establishment of bacterial infections...
January 5, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28033847/impact-of-polymicrobial-biofilms-in-catheter-associated-urinary-tract-infections
#8
Andreia S Azevedo, Carina Almeida, Luís F Melo, Nuno F Azevedo
Recent reports have demonstrated that most biofilms involved in catheter-associated urinary tract infections are polymicrobial communities, with pathogenic microorganisms (e.g. Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae) and uncommon microorganisms (e.g. Delftia tsuruhatensis, Achromobacter xylosoxidans) frequently co-inhabiting the same urinary catheter. However, little is known about the interactions that occur between different microorganisms and how they impact biofilm formation and infection outcome...
December 30, 2016: Critical Reviews in Microbiology
https://www.readbyqxmd.com/read/28002109/neonatal-bacterial-conjunctivitis-in-korea-in-the-21st-century
#9
Kang Yeun Pak, Sung Il Kim, Jong Soo Lee
PURPOSE: To investigate the microbial cause and antibiotic susceptibility of neonatal bacterial conjunctivitis in Korean patients in the 21st century. METHODS: We retrospectively reviewed the medical records of patients diagnosed with neonatal bacterial conjunctivitis between January 2000 and December 2015. We recorded the organism, antibiotic susceptibility, and antibiotics used. RESULTS: A total of 82 neonates were included in the study (53 males and 29 females), with a mean age of 17...
December 20, 2016: Cornea
https://www.readbyqxmd.com/read/27999665/estimating-the-morbidity-and-mortality-associated-with-infections-due-to-multidrug-resistant-bacteria-mdrb-france-2012
#10
M Colomb-Cotinat, J Lacoste, C Brun-Buisson, V Jarlier, B Coignard, S Vaux
BACKGROUND: A study based on 2007 data estimated that 386,000 infections due to multidrug-resistant bacteria (MDRB) occurred in Europe that year and 25,000 patients died from these infections. Our objective was to estimate the morbidity and mortality associated with these infections in France. METHODS: The MDRB considered were methicillin-resistant Staphylococcus aureus (MRSA), glycopeptide-resistant enterococci, third-generation cephalosporin-resistant (3GC-R) Escherichia coli and Klebsiella pneumoniae, carbapenem-resistant Klebsiella pneumoniae, Acinetobacter spp...
2016: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/27998732/pathogenesis-of-microbial-keratitis
#11
REVIEW
Sahreena Lakhundi, Ruqaiyyah Siddiqui, Naveed Ahmed Khan
Microbial keratitis is a sight-threatening ocular infection caused by bacteria, fungi, and protist pathogens. Epithelial defects and injuries are key predisposing factors making the eye susceptible to corneal pathogens. Among bacterial pathogens, the most common agents responsible for keratitis include Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus pneumonia and Serratia species. Fungal agents of corneal infections include both filamentous as well as yeast, including Fusarium, Aspergillus, Phaeohyphomycetes, Curvularia, Paecilomyces, Scedosporium and Candida species, while in protists, Acanthamoeba spp...
December 18, 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27983658/regulation-of-pseudomonas-aeruginosa-virulence-by-distinct-iron-sources
#12
REVIEW
Alexandria A Reinhart, Amanda G Oglesby-Sherrouse
Pseudomonas aeruginosa is a ubiquitous environmental bacterium and versatile opportunistic pathogen. Like most other organisms, P. aeruginosa requires iron for survival, yet iron rapidly reacts with oxygen and water to form stable ferric (FeIII) oxides and hydroxides, limiting its availability to living organisms. During infection, iron is also sequestered by the host innate immune system, further limiting its availability. P. aeruginosa's capacity to cause disease in diverse host environments is due to its ability to scavenge iron from a variety of host iron sources...
December 14, 2016: Genes
https://www.readbyqxmd.com/read/27960579/genus-distribution-of-bacteria-and-fungi-associated-with-keratitis-in-a-large-eye-center-located-in-southern-china
#13
Lixia Lin, Weizhong Lan, Bingsheng Lou, Hongmin Ke, Yuanzhe Yang, Xiaofeng Lin, Lingyi Liang
PURPOSE: To investigate the genus distribution of bacteria and fungi associated with keratitis in a large eye center located in Southern China and to compare the results with existing data from other areas in China. METHODS: All results of corneal microbiological examinations from 2009 to 2013 of patients who had been clinically diagnosed with bacterial or fungal keratitis were obtained chronologically and anonymously from the microbiology database at Zhongshan Ophthalmic Center...
December 14, 2016: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/27959904/clinical-features-and-outcomes-of-ipf-patients-hospitalized-for-pulmonary-infection-a-japanese-cohort-study
#14
Ryo Yamazaki, Osamu Nishiyama, Hiroyuki Sano, Takashi Iwanaga, Yuji Higashimoto, Hiroaki Kume, Yuji Tohda
Many patients with idiopathic pulmonary fibrosis (IPF) undergo hospitalizations due to pulmonary infections. We retrospectively investigated the characteristics of hospitalizations due to pulmonary infection in patients with IPF to elucidate causative pathogens and mortality. We reviewed patients with IPF who were admitted between January 2008 and December 2014 for pulmonary infections including pneumonia and bronchitis. The causative pathogen, the relationship between the site of pneumonia and existing IPF radiological patterns on high-resolution chest CT, and predictors of mortality were evaluated...
2016: PloS One
https://www.readbyqxmd.com/read/27941638/bronchiectasis-in-the-last-five-years-new-developments
#15
REVIEW
Jun Keng Khoo, Victoria Venning, Conroy Wong, Lata Jayaram
Bronchiectasis, a chronic lung disease characterised by cough and purulent sputum, recurrent infections, and airway damage, is associated with considerable morbidity and mortality. To date, treatment options have been limited to physiotherapy to clear sputum and antibiotics to treat acute infections. Over the last decade, there has been significant progress in understanding the epidemiology, pathophysiology, and microbiology of this disorder. Over the last five years, methods of assessing severity have been developed, the role of macrolide antibiotic therapy in reducing exacerbations cemented, and inhaled antibiotic therapies show promise in the treatment of chronic Pseudomonas aeruginosa infection...
December 8, 2016: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/27931630/infectious-complications-in-gastrointestinal-endoscopy-and-their-prevention
#16
REVIEW
Julia Kovaleva
Gastrointestinal endoscopes are medical devices that have been associated with outbreaks of health care-associated infections. Because of the severity and limited treatment options of infections caused by multidrug-resistant Enterobacteriaceae and Pseudomonas aeruginosa, considerable attention has been paid to detection and prevention of these post-endoscopic outbreaks. Endoscope reprocessing involves cleaning, high-level disinfection/sterilization followed by rinsing and drying before storage. Failure of the decontamination process implies the risk of settlement of biofilm producing species in endoscope channels...
October 2016: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/27919253/cystic-fibrosis-lung-environment-and-pseudomonas-aeruginosa-infection
#17
Anjali Y Bhagirath, Yanqi Li, Deepti Somayajula, Maryam Dadashi, Sara Badr, Kangmin Duan
BACKGROUND: The airways of patients with cystic fibrosis (CF) are highly complex, subject to various environmental conditions as well as a distinct microbiota. Pseudomonas aeruginosa is recognized as one of the most important pulmonary pathogens and the predominant cause of morbidity and mortality in CF. A multifarious interplay between the host, pathogens, microbiota, and the environment shapes the course of the disease. There have been several excellent reviews detailing CF pathology, Pseudomonas and the role of environment in CF but only a few reviews connect these entities with regards to influence on the overall course of the disease...
December 5, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27907224/single-versus-combination-intravenous-anti-pseudomonal-antibiotic-therapy-for-people-with-cystic-fibrosis
#18
REVIEW
Heather E Elphick, Alison Scott
BACKGROUND: Choice of antibiotic, and the use of single or combined therapy are controversial areas in the treatment of respiratory infection due to Pseudomonas aeruginosa in cystic fibrosis (CF). Advantages of combination therapy include wider range of modes of action, possible synergy and reduction of resistant organisms; advantages of monotherapy include lower cost, ease of administration and reduction of drug-related toxicity. Current evidence does not provide a clear answer and the use of intravenous antibiotic therapy in cystic fibrosis requires further evaluation...
1, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27891118/colistin-in-pig-production-chemistry-mechanism-of-antibacterial-action-microbial-resistance-emergence-and-one-health-perspectives
#19
REVIEW
Mohamed Rhouma, Francis Beaudry, William Thériault, Ann Letellier
Colistin (Polymyxin E) is one of the few cationic antimicrobial peptides commercialized in both human and veterinary medicine. For several years now, colistin has been considered the last line of defense against infections caused by multidrug-resistant Gram-negative such as Acinetobacter baumannii, Pseudomonas aeruginosa, and Klebsiella pneumoniae. Colistin has been extensively used orally since the 1960s in food animals and particularly in swine for the control of Enterobacteriaceae infections. However, with the recent discovery of plasmid-mediated colistin resistance encoded by the mcr-1 gene and the higher prevalence of samples harboring this gene in animal isolates compared to other origins, livestock has been singled out as the principal reservoir for colistin resistance amplification and spread...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27876274/are-there-any-ways-around-the-exposure-limiting-nephrotoxicity-of-the-polymyxins
#20
Jason M Pogue, Jessica K Ortwine, Keith S Kaye
The polymyxins (colistin and polymyxin B) have emerged over the past 20 years as essential antibacterial agents that often are the only remaining active class against troublesome multidrug-resistant Gram-negative bacilli such as carbapenem-resistant Acinetobacter baumannii, Pseudomonas aeruginosa and Enterobacteriaceae. The utility of this class is limited by its dose-dependent nephrotoxicity, which can occur in more than one-half of patients receiving therapy with either agent. Strategies are urgently needed to optimise the use of this class of agents to ensure optimal activity while minimising the treatment-limiting nephrotoxicity...
December 2016: International Journal of Antimicrobial Agents
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