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https://www.readbyqxmd.com/read/29784849/evaluation-of-telavancin-alone-and-combined-with-ceftaroline-or-rifampin-against-methicillin-resistant-staphylococcus-aureus-mrsa-in-an-in-vitro-biofilm-model
#1
Seyedehameneh Jahanbakhsh, Nivedita B Singh, Juwon Yim, Warren E Rose, Michael J Rybak
Biofilm-producing methicillin-resistant Staphylococcus aureus (MRSA) infections are challenging due to increasing antibiotic resistance. Synergistic activity of lipopeptides and lipoglycopeptides with β-lactams has been demonstrated for MRSA, but little is known about biofilm-embedded organisms. Our objective was to evaluate two telavancin (TLV) dosage regimens (7.5 mg/kg and 10 mg/kg q 24h)alone and in combination with ceftaroline (CPT) (600 mg q 8 h) or rifampin (RIF) (450 mg q 12h) against two biofilm-producing MRSA (494 and N315)...
May 21, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29784844/incidences-of-pseudomonas-associated-ventilator-associated-pneumonia-within-studies-of-respiratory-tract-applications-of-polymyxin-testing-the-stoutenbeek-concurrency-postulates
#2
James C Hurley
Regimens containing topical polymyxin appear highly effective at preventing Ventilator-associated pneumonia (VAP) overall and more-so, gram negative VAP. However, Soutenbeek's postulates, that VAP incidences within studies of topical antibiotics would depend on the context of whether the component (control and intervention) groups of each study were concurrent versus non-concurrent, remain untested.The literature was searched for concurrent control (CC) versus non-concurrent control (NCC) designed studies of respiratory tract applications of topical polymyxin to mechanically ventilated (MV) patients that reported Pseudomonas associated Ventilator-associated pneumonia (PsVAP) incidences...
May 21, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29784074/effects-of-fenbendazole-impregnated-feed-and-topical-moxidectin-during-quarantine-on-the-gut-microbiota-of-c57bl-6-mice
#3
Scott W Korte, Craig L Franklin, Rebecca A Dorfmeyer, Aaron C Ericsson
To protect the biosecurity of research rodent colonies, research institutions frequently require a quarantine period for live animals transferred into their facilities. Quarantine practices often include antibiotic and antiparasitic treatment with drugs such as fenbendazole and macrolide lactones. The influence of these compounds on the resident gut microbiota of mice is unknown, and any effects might subsequently affect model reproducibility. To test the influence of standard quarantine procedures on the composition of the microbiota, C57BL/6 mice, purchased from 2 different commercial suppliers, were randomly assigned to treatment groups (n = 12) by vendor and treated with fenbendazole-supplemented feed, topical moxidectin, both treatments, or no treatment (control), according to our institution's standard treatment regimen and duration...
May 1, 2018: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/29783881/lemierre-s-syndrome-a-case-study-with-a-short-review-of-literature
#4
Ken De Smet, Paul-Emile Claus, Gudrun Alliet, An Simpelaere, Geert Desmet
Objective and Importance Lemierre's syndrome (LS) is a rare condition that typically starts with a bacterial oropharyngeal infection complicated by a thrombophlebitis of the internal jugular vein and septic emboli to the lungs or other organs. The most common organism isolated is Fusobacterium necrophorum, although other causative organisms are isolated in rare cases. Case presentation We discuss a case of LS in a 44-year-old, previously healthy man presenting with an oropharyngeal infection. F. necrophorum was isolated from blood cultures and Computed tomography of the chest demonstrated septic emboli in the lungs...
May 21, 2018: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29781787/evaluating-the-duration-of-prophylactic-post-operative-antibiotic-agents-after-open-reduction-internal-fixation-for-closed-fractures
#5
Brett D Crist, Lasun O Oladeji, Gregory J Della Rocca, David A Volgas, James P Stannard, David D Greenberg
BACKGROUND: The importance of timely pre-operative antibiotic agents for effective surgical prophylaxis has been established but the optimal duration of antimicrobial coverage post-operatively has not yet been defined clearly. The purpose of this study was to determine if prophylactic post- operative cefazolin for 23 hours decreases the risk of surgical site infection (SSI) after open reduction internal fixation (ORIF) of closed extremity fractures. PATIENTS AND METHODS: After Institutional Reviews Board approval, patients undergoing ORIF of closed extremity fractures who had a planned post-operative stay of at least 23 hours were randomly assigned to either receive 23 hours of cefazolin or a placebo...
May 21, 2018: Surgical Infections
https://www.readbyqxmd.com/read/29781330/management-of-pleural-infections
#6
Lucía Ferreiro, José M Porcel, Silvia Bielsa, María Elena Toubes, José Manuel Álvarez-Dobaño, Luis Valdés
The management of infected pleural effusion is complex. Therapeutic resolution requires determining the following: appropriate antibiotic regimen, the need for pleural drainage, the optimal drainage tube size, and the need for intrapleural therapy or surgery. Areas covered: An updating of the latest advances in the management of parapneumonic pleural effusion based on the best evidence available is provided. Expert commentary: The correct management of parapneumonic pleural effusion is based on selecting an antibiotic regimen according to the origin of the pleural infection (community-acquired or nosocomial)...
May 20, 2018: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/29781232/predictors-of-outcomes-in-managing-breast-abscesses-a-large-retrospective-single-center-analysis
#7
Miriam David, Priyanka Handa, Maria Castaldi
We have retrospectively examined a wide range of clinical characteristics, sonographic features, microbiology, and antibiotic regimens in patients with breast abscesses to seek predictive features related to outcome. Because consensus for optimal treatment of breast abscesses has moved toward minimally invasive management using single or repeated needle aspiration (ASP) coupled with adjuvant antibiotics, we assessed whether any factors correlate with the need for repeat procedures by analyzing the number of ASPs and/or surgical incision and drainage (I&D) per abscess...
May 20, 2018: Breast Journal
https://www.readbyqxmd.com/read/29780757/huge-candida-albicans-normal-native-tricuspid-valve-endocarditis
#8
Massimiliano Guerriero, Francesco Colasurdo, Anna Maria Pollio
Fungal endocarditis has become an important infection associated with medical progress and the modern lifestyle. In particular, Candida spp. is a rare but important cause of infective endocarditis. We report the case of a 28-year-old woman-quadriplegic and bedridden from birth-who died after repeated episodes of pneumonia treated with different regimens of intravenous antibiotics. A medico legal autopsy was performed, which diagnosed severe Candida native valve infective endocarditis (CIE). This case report illustrates the prolonged use of antibiotic treatment as a possible risk factor for the development of CIE...
April 2018: Autopsy & Case Reports
https://www.readbyqxmd.com/read/29780587/development-of-a-vancomycin-dosing-approach-for-critically-ill-patients-receiving-hybrid-hemodialysis-using-monte-carlo-simulation
#9
Susan J Lewis, Bruce A Mueller
Objectives: Prolonged intermittent renal replacement therapy is an increasingly popular treatment for acute kidney injury in critically ill patients that runs at different flow rates and durations than conventional hemodialysis or continuous renal replacement therapies. Pharmacokinetic studies conducted in patients receiving prolonged intermittent renal replacement therapy are scarce; consequently, clinicians are challenged to dose antibiotics effectively. The purpose of this study was to develop vancomycin dosing recommendations for patients receiving prolonged intermittent renal replacement therapy...
2018: SAGE Open Medicine
https://www.readbyqxmd.com/read/29777835/combined-bacteriophages-and-antibiotics-as-an-efficient-therapy-against-vre-enterococcus-faecalis-in-a-mouse-model
#10
Daniel Gelman, Shaul Beyth, Vanda Lerrer, Karen Adler, Ronit Poradosu-Cohen, Shunit Coppenhagen-Glazer, Ronen Hazan
Clinical applications of bacteriophage therapy have been recently gathering significant attention worldwide, used mostly as rescue therapy in cases of near-fatal antibiotic failure. Thus, clinically relevant in-vivo models presenting both short- and long-term implications of phage therapy given as rescue treatment for fulminant infections are of highest importance. In this study, a cocktail consisting of two lytic bacteriophages was used to evaluate the therapeutic efficacy of phage therapy as a rescue treatment for severe septic peritonitis in a mouse model...
May 16, 2018: Research in Microbiology
https://www.readbyqxmd.com/read/29777150/risk-factors-of-treatment-failure-and-30-day-mortality-in-patients-with-bacteremia-due-to-mrsa-with-reduced-vancomycin-susceptibility
#11
Chien-Chang Yang, Cheng-Len Sy, Yhu-Chering Huang, Shian-Sen Shie, Jwu-Ching Shu, Pang-Hsin Hsieh, Ching-Hsi Hsiao, Chih-Jung Chen
Bacteremia caused by MRSA with reduced vancomycin susceptibility (MRSA-RVS) frequently resulted in treatment failure and mortality. The relation of bacterial factors and unfavorable outcomes remains controversial. We retrospectively reviewed clinical data of patients with bacteremia caused by MRSA with vancomycin MIC = 2 mg/L from 2009 to 2012. The significance of bacterial genotypes, agr function and heterogeneous vancomycin-intermediate S. aureus (hIVSA) phenotype in predicting outcomes were determined after clinical covariates adjustment with multivariate analysis...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29776398/primary-bacterial-ventriculitis-in-adults-an-emergent-diagnosis-challenge-report-of-a-meningoccal-case-and-review-of-the-literature
#12
Anaïs Lesourd, Nicolas Magne, Anaïs Soares, Caroline Lemaitre, Muhamed-Kheir Taha, Isabelle Gueit, Michel Wolff, François Caron
BACKGROUND: Defined by an infection of the ventricular system of the brain, ventriculitis is usually known as a health-care associated infection. In contrast, primary pyogenic ventriculitis complicating community-acquired meningitis is uncommon, and mainly described in infants. Only seven cases that have occured in adults have been found in the international literature. CASE PRESENTATION: We report here a new case due to Neisseria meningitidis occurring in an 85 year-old-man...
May 18, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29775967/bilateral-breast-calciphylaxis-in-a-patient-who-survived-earlier-extensive-tissue-necrosis-5-years-previously-a-case-report
#13
E M J Verstappen, A J G Maaskant-Braat, M R Scheltinga
INTRODUCTION: Calciphylaxis is a rare condition including patchy dermal necrosis that mostly affects chronic hemodialysis patients. The syndrome usually heralds impending death although patients may survive following a set of measures including an adapted dialysis regimen. The present case is a unique patient who recovered from an earlier episode of upper leg calciphylaxis 5 years previously but developed fatal bilateral breast necrosis. PRESENTATION OF CASE: A 69 year old Caucasian woman with a history of atrial fibrillation, hypertension, CVA, hyperparathyroidectomy for secondary hyperparathyroidism and end stage renal disease with hemodialysis recovered in 2012 from extensive symptomatic left upper leg necrosis due to calciphylaxis...
May 7, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29772229/polybacterial-community-analysis-in-human-conjunctiva-through-16s-rrna-gene-libraries
#14
Deepthi KrishnanNair Geetha, Jayasudha Rajagopalaboopathi, Girish Rameshan Nair, Manikandan Palanisamy, Ram Rammohan, Narendran Venkatapathy, Prabagaran Solai Ramatchandirane
The conjunctival sac of healthy human harbours a variety of microorganisms. When the eye is compromised, an occasional inadvertent spread happens to the adjacent tissue, resulting in bacterial ocular infections. Microbiological investigation of the conjunctival swab is one of the broadly used modality to study the aetiological agent of conjunctiva. However, most of the time such methods yield unsatisfactory results. Hence, the present study intends to identify the bacterial community in human conjunctiva of pre-operative subjects through 16S rRNA gene libraries...
May 14, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29770702/characterization-of-potentially-unsafe-ambulatory-antibiotic-use-and-associated-outcomes-in-an-adult-kidney-transplant-population
#15
Lindsay M Avery, Cory E Fominaya, Rena C Crawford, Katherine P Pleasants, David J Taber
BACKGROUND: Antibiotics are frequently prescribed to kidney transplant (KTX) recipients in the outpatient setting, but there are limited data assessing the safety and outcomes associated with this practice. OBJECTIVE: The primary objective of this study was to describe ambulatory antibiotic prescribing in a large cohort of adult KTX recipients. The secondary objective was to assess the outcomes associated with potentially unsafe antibiotic use in this population...
May 1, 2018: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/29769028/-careful-goodbye-at-the-door-is-there-role-for-antimicrobial-stewardship-interventions-for-antimicrobial-therapy-prescribed-on-hospital-discharge
#16
R Chavada, J Davey, L O'Connor, D Tong
BACKGROUND: Antimicrobial stewardship (AMS) interventions largely target inpatient antimicrobial prescribing. Literature on appropriateness of antimicrobials prescribed at the interface between hospital and the community is minimal. This study was designed to assess the appropriateness of antimicrobials prescribed on hospital discharge and evaluate the impact of AMS interventions. METHODS: Patients with discharge medications processed by the pharmacy were identified using a computerized pharmacy medication tracker over a four week period...
May 16, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29768957/comparison-of-the-incidence-of-febrile-neutropenia-in-obese-and-normal-weight-breast-cancer-patients-receiving-myelosuppressive-chemotherapy-and-prophylactic-pegfilgrastim
#17
Jennifer M Collins, Gini F Fleming, Trevor N Christ
Purpose Common breast cancer chemotherapy regimens are associated with a risk of febrile neutropenia, so prophylactic colony-stimulating factors are incorporated for high-risk patients. Filgrastim utilizes weight-based dosing; however, its sustained-release formulation utilizes fixed dosing. The purpose of this study is to determine whether obese breast cancer patients who receive pegfilgrastim are at increased risk of developing febrile neutropenia. Methods This study is a single-center, retrospective chart review...
January 1, 2018: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/29761668/a-mechanism-based-disease-progression-model-describing-host-pathogen-interactions-during-the-pathogenesis-of-acinetobacter-baumannii-pneumonia
#18
John K Diep, Thomas A Russo, Gauri G Rao
The emergence of highly resistant bacteria is a serious threat to global public health. The host immune response is vital for clearing bacteria from the infected host; however, the current drug development paradigm does not take host-pathogen interactions into consideration. Here, we used a systems-based approach to develop a quantitative, mechanism-based disease progression model to describe bacterial dynamics, host immune response, and lung injury in an immunocompetent rat pneumonia model. Previously, Long-Evans rats were infected with A...
May 15, 2018: CPT: Pharmacometrics & Systems Pharmacology
https://www.readbyqxmd.com/read/29761047/a-survey-of-the-views-and-capabilities-of-community-pharmacists-in-western-australia-regarding-the-rescheduling-of-selected-oral-antibiotics-in-a-framework-of-pharmacist-prescribing
#19
Fatima Sinkala, Richard Parsons, Bruce Sunderland, Kreshnik Hoti, Petra Czarniak
Background: Antibiotic misuse in the community contributes to antimicrobial resistance. One way to address this may be by better utilizing community pharmacists' skills in antibiotic prescribing. The aims of this study were to examine the level of support for "down-scheduling" selected antibiotics and to evaluate factors determining the appropriateness of community pharmacist prescribing for a limited range of infections, including their decision to refer to a doctor. Methods: Self-administered questionnaires, including graded case vignette scenarios simulating real practice, were sent to Western Australian community pharmacists...
2018: PeerJ
https://www.readbyqxmd.com/read/29760147/rifabutin-acts-in-synergy-and-is-bactericidal-with-frontline-mycobacterium-abscessus-antibiotics-clarithromycin-and-tigecycline-suggesting-a-potent-treatment-combination
#20
Mark Pryjma, Ján Burian, Charles J Thompson
Mycobacterium abscessus (MAB ) is a rapidly emerging mycobacterial pathogen causing dangerous pulmonary infections. Because these bacteria are intrinsically multidrug resistant, treatment options are limited and have questionable efficacy. The current treatment regimen relies on a combination of antibiotics including clarithromycin paired with amikacin and either imipenem or cefoxitin. Tigecycline may be added when triple therapy is ineffective. We initially screened a library containing the majority of clinically available antibiotics for anti- MAB activity...
May 14, 2018: Antimicrobial Agents and Chemotherapy
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