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https://www.readbyqxmd.com/read/29149338/multiplex-respiratory-virus-testing-for-antimicrobial-stewardship-a-prospective-assessment-of-antimicrobial-use-and-clinical-outcomes-among-hospitalized-adults
#1
Makeda Semret, Ian Schiller, Barbara Ann Jardin, Charles Frenette, Vivian G Loo, Jesse Papenburg, Shelly A McNeil, Nandini Dendukuri
Background: Respiratory tract infections are frequent causes of hospitalization and initiation of empirical antimicrobial therapy. Testing for a broad panel of respiratory viruses has been advocated as a useful tool for antibiotic stewardship. We conducted a prospective observational study to assess the impact of rapid viral test results on antimicrobial prescriptions and clinical outcomes among hospitalized adults. Methods: Eight hundred patients admitted with respiratory symptoms were tested by a 12-virus respiratory panel (RVP) during 3 consecutive winters in Montreal, Canada...
November 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29149266/association-between-prior-antibiotic-therapy-and-subsequent-risk-of-community-acquired-infections-a-systematic-review
#2
Umer Malik, David Armstrong, Mark Ashworth, Alex Dregan, Veline L'Esperance, Lucy McDonnell, Mariam Molokhia, Patrick White
Background: Antibiotic use can have negative unintended consequences including disruption of the human microbiota, which is thought to protect against pathogen overgrowth. We conducted a systematic review to assess whether there is an association between exposure to antibiotics and subsequent risk of community-acquired infections. Methods: We searched MEDLINE, EMBASE and Web of Science for studies published before 30 June 2017, examining the association between antibiotic use and subsequent community-acquired infection...
November 14, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29149015/potential-confounders-of-procalcitonin-guided-antibiotic-therapy-for-sepsis
#3
Kazuya Kikutani, Shinichiro Ohshimo, Nobuaki Shime
No abstract text is available yet for this article.
December 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29148915/the-frequency-of-mutations-in-quinolone-resistance-determining-regions-and-plasmid-mediated-quinolone-resistance-in-shigella-isolates-recovered-from-pediatric-patients-in-tehran-iran-an-overlooked-problem
#4
Sajad Yaghoubi, Reza Ranjbar, Mohammad Mehdi Soltan Dallal, Mohammad Hasan Shirazi, Mohammad Kazem Sharifi-Yazdi
Fluoroquinolone (FQ) resistance in clinical isolates of Shigella species has been increasing reported in recent years. This study was carried out to find the mutations within the quinolone resistance-determining regions (QRDRs) and the prevalence of plasmid-mediated quinolone resistance (PMQR) determinants among the clinical isolates of Shigella sp. in Tehran, Iran. A total of 50 Shigella isolates were collected from five teaching therapeutic centers in Tehran, Iran and analyzed for antibiotic susceptibility over a period of 20 months from July 2015 to January 2017...
November 17, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29148199/five-lessons-in-uncomplicated-appendicitis-can-we-remove-the-surgery
#5
Andrew Read, Jane Xu, Susan Adams, Jonathan Karpelowsky
Appendicectomy has remained the treatment of choice for appendicitis for over a century and is the most commonly performed emergency operation in children. However, emerging evidence suggests that appendicectomy may not always be necessary in uncomplicated appendicitis, with early paediatric trials demonstrating that antibiotic-only therapy can be safe and effective. Further rigorously designed and appropriately powered studies are necessarily to establish the place of non-operative management of uncomplicated appendicitis in the future...
November 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29147962/retrospective-review-of-ceftriaxone-versus-levofloxacin-for-treatment-of-e-coli-urinary-tract-infections
#6
Samantha S Wang, Patrick D Ratliff, William R Judd
Background Urinary tract infections (UTIs) are among the most common bacterial infections. Options for initial treatment of pyelonephritis or UTI requiring hospitalization include levofloxacin (LVF) or extended-spectrum cephalosporins. Globally, uropathogenic Escherichia coli resistance rates to fluoroquinolones have increased in recent years. Objective To compare clinical outcomes of patients receiving ceftriaxone (CTX) to those who received LVF empirically for the treatment of E. coli UTI. Setting 433-bed community hospital in Lexington, KY...
November 17, 2017: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/29147464/treatment-of-the-fluoroquinolone-associated-disability-the-pathobiochemical-implications
#7
REVIEW
Krzysztof Michalak, Aleksandra Sobolewska-Włodarczyk, Marcin Włodarczyk, Justyna Sobolewska, Piotr Woźniak, Bogusław Sobolewski
Long-term fluoroquinolone-associated disability (FQAD) after fluoroquinolone (FQ) antibiotic therapy appears in recent years as a significant medical and social problem, because patients suffer for many years after prescribed antimicrobial FQ treatment from tiredness, concentration problems, neuropathies, tendinopathies, and other symptoms. The knowledge about the molecular activity of FQs in the cells remains unclear in many details. The effective treatment of this chronic state remains difficult and not effective...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29147115/effects-of-aminoglycoside-antibiotics-on-human-embryonic-stem-cell-viability-during-differentiation-in-vitro
#8
Divya S Varghese, Shama Parween, Mustafa T Ardah, Bright Starling Emerald, Suraiya A Ansari
Human embryonic stem cells (hESCs) are being used extensively in array of studies to understand different mechanisms such as early human embryogenesis, drug toxicity testing, disease modeling, and cell replacement therapy. The protocols for the directed differentiation of hESCs towards specific cell types often require long-term cell cultures. To avoid bacterial contamination, these protocols include addition of antibiotics such as pen-strep and gentamicin. Although aminoglycosides, streptomycin, and gentamicin have been shown to cause cytotoxicity in various animal models, the effect of these antibiotics on hESCs is not clear...
2017: Stem Cells International
https://www.readbyqxmd.com/read/29146633/comparison-of-outcomes-of-antibiotic-drugs-and-appendectomy-coda-trial-a-protocol-for-the-pragmatic-randomised-study-of-appendicitis-treatment
#9
Giana H Davidson, David R Flum, David A Talan, Larry G Kessler, Danielle C Lavallee, Bonnie J Bizzell, Farhood Farjah, Skye D Stewart, Anusha Krishnadasan, Erin E Carney, Erika M Wolff, Bryan A Comstock, Sarah E Monsell, Patrick J Heagerty, Annie P Ehlers, Daniel A DeUgarte, Amy H Kaji, Heather L Evans, Julianna T Yu, Katherine A Mandell, Ian C Doten, Kevin S Clive, Karen M McGrane, Brandon C Tudor, Careen S Foster, Darin J Saltzman, Richard C Thirlby, Erin O Lange, Amber K Sabbatini, Gregory J Moran
INTRODUCTION: Several European studies suggest that some patients with appendicitis can be treated safely with antibiotics. A portion of patients eventually undergo appendectomy within a year, with 10%-15% failing to respond in the initial period and a similar additional proportion with suspected recurrent episodes requiring appendectomy. Nearly all patients with appendicitis in the USA are still treated with surgery. A rigorous comparative effectiveness trial in the USA that is sufficiently large and pragmatic to incorporate usual variations in care and measures the patient experience is needed to determine whether antibiotics are as good as appendectomy...
November 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/29146620/diagnosing-infection-in-a-neonate-using-whole-body-screening-magnetic-resonance-imaging
#10
Ting Ting Fu, Paul S Kingma
The location of invasive infections is difficult to detect in infants, in part due to their inability to localize signs and symptoms. However, identifying the location often significantly alters clinical management by extending the duration of antibiotic therapy or revealing a source requiring surgical intervention. Compared with commonly used first-line imaging techniques such as radiographs and ultrasounds, MRI has higher sensitivity for identifying invasive infections and allows for simultaneous evaluation of multiple foci...
November 16, 2017: Pediatrics
https://www.readbyqxmd.com/read/29146389/a-case-of-psoas-abscess-after-robotic-assisted-laparoscopic-hysterectomy-and-pelvic-lymphadenectomy
#11
Vanessa Rigaud, Pengfei Wang, Ashley Bartalot, Farr Nezhat
Iliopsoas abscess (IPA) is a rare condition seen in a variety of specialties that presents with nonspecific complaints. Presented herein is the development of an IPA after robotic staging with sentinel lymaphadenectomy for endometrial carcinoma. Patient is a 61yo female with history of prolonged immunosuppressive therapy due to psoriasis. She presented with an IPA, eight weeks after a robotic-assisted laparoscopic hysterectomy, BSO, and sentinel lymph node dissection. The patient was treated and cured with empiric antibiotics and IR drainage...
November 13, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29146383/not-just-antibiotics-is-cancer-chemotherapy-driving-antimicrobial-resistance
#12
REVIEW
Lito E Papanicolas, David L Gordon, Steve L Wesselingh, Geraint B Rogers
The global spread of antibiotic-resistant pathogens threatens to increase the mortality of cancer patients significantly. We propose that chemotherapy contributes to the emergence of antibiotic-resistant bacteria within the gut and, in combination with antibiotics, drives pathogen overgrowth and translocation into the bloodstream. In our model, these processes are mediated by the effects of chemotherapy on bacterial mutagenesis and horizontal gene transfer, the disruption of commensal gut microbiology, and alterations to host physiology...
November 13, 2017: Trends in Microbiology
https://www.readbyqxmd.com/read/29146106/the-hydrophobic-trap-the-achilles-heel-of-rnd-efflux-pumps
#13
Zachary Aron, Timothy J Opperman
Resistance-nodulation-division (RND) superfamily efflux pumps play a major role in multidrug resistance (MDR) of Gram-negative pathogens by extruding diverse classes of antibiotics from the cell. There has been considerable interest in developing efflux pump inhibitors (EPIs) of RND pumps as adjunctive therapies. The primary challenge in EPI discovery has been the highly hydrophobic, poly-specific substrate binding site of the target. Recent findings have identified the hydrophobic trap, a narrow phenylalanine-lined groove in the substrate-binding site, as the "Achilles heel" of the RND efflux pumps...
November 13, 2017: Research in Microbiology
https://www.readbyqxmd.com/read/29146039/clinical-features-and-outcomes-of-bacteraemia-due-to-oxa-48-like-carbapenemase-producing-klebsiella-pneumoniae-in-a-tertiary-hospital
#14
Ana Madueño, Jonathan González-García, María Del Mar Alonso Socas, María Antonia Miguel Gómez, María Lecuona
INTRODUCTION: Limited therapeutic options and high mortality make the management of OXA-48-like carbapenemase-producing Klebsiella pneumoniae (KPOXA-48) bacteraemia complicated. The aim of the study was to describe the clinical characteristics of KPOXA-48 bacteraemia between October 2013 and December 2016. MATERIAL AND METHODS: The variables to analyse were retrospectively collected from medical records. Carbapenemase production was confirmed by phenotypic and molecular methods...
November 13, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/29145857/treatment-of-charcot-neuroarthropathy-and-osteomyelitis-of-the-same-foot-a-retrospective-cohort-study
#15
Martin Berli, Lazaros Vlachopoulos, Sabra Leupi, Thomas Böni, Charlotte Baltin
BACKGROUND: We evaluated treatment of osteomyelitis in the foot in the presence of Charcot neuroarthropathy, a devastating condition with progressive degeneration and joint destruction. We hypothesized that there was a difference in (1) amputation rate, (2) amputation level, (3) duration of antibiotic therapy, and (4) duration of immobilization for treatment of osteomyelitis within versus outside the Charcot zone. METHODS: Forty patients (43 ft) diagnosed with Charcot neuroarthropathy and osteomyelitis of the same foot were retrospectively analyzed...
November 16, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29145853/molecular-characterization-of-%C3%AE-lactamase-genes-in-clinical-isolates-of-carbapenem-resistant-acinetobacter-baumannii
#16
Kevin M Raible, Bhaswati Sen, Nancy Law, Tiffany E Bias, Christopher L Emery, Garth D Ehrlich, Suresh G Joshi
BACKGROUND: Acinetobacter baumannii is a nosocomial pathogen which is establishing as a major cause of morbidity and mortality within the healthcare community. The success of this pathogen is largely due to its ability to rapidly gain resistance to antimicrobial therapies and its capability to persist in an abiotic environment through the production of a biofilm. Our tertiary-care hospital has showed high incidence of carbapenem-resistant Acinetobacter baumannii (CRAB) isolates. METHODS: In this study we explore both genotypic and phenotypic properties of 26 CRAB isolates: 16 isolates were collected from January 2010 to March 2011, and 10 were collected between February and May 2015...
November 16, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/29145795/use-of-immunohistochemistry-to-demonstrate-in-vivo-expression-of-the-burkholderia-mallei-virulence-factor-bpab-during-experimental-glanders
#17
Shawn M Zimmerman, Mackenzie E Long, Jeremy S Dyke, Tomislav P Jelesijevic, Frank Michel, Eric R Lafontaine, Robert J Hogan
Burkholderia mallei causes the highly contagious and debilitating zoonosis glanders, which infects via inhalation or percutaneous inoculation and often culminates in life-threatening pneumonia and sepsis. In humans, glanders is difficult to diagnose and requires prolonged antibiotic therapy with low success rates. No vaccine exists to protect against B. mallei, and there is concern regarding its use as a bioweapon. The authors previously identified the protein BpaB as a potential target for devising therapies due to its role in adherence to host cells and the formation of biofilms in vitro and its contribution to pathogenicity in a mouse model of glanders...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/29145711/timing-of-antibiotics-in-the-management-of-community-acquired-sepsis-can-a-randomised-controlled-trial-of-prehospital-therapy-provide-answers
#18
Andrew A Udy, Karen Smith, Stephen Bernard
Significant tension surrounds the application of antibiotics in suspected infection. Guidelines stress the importance of early empirical broad-spectrum therapy, with select observational data suggesting inferior outcomes when this is delayed. In contrast, microbiological resistance is an ever increasing global problem, with many advocating for a more restricted, culture-driven approach to antibiotic prescription. Controlled trial data are urgently needed, although many clinicians would find withholding of antibiotic therapy unethical...
November 16, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/29145328/endocarditis-due-to-abiotrophia-defectiva-a-biofilm-related-infection-associated-with-the-presence-of-fixed-braces-a-case-report
#19
Victoria Birlutiu, Rares Mircea Birlutiu
RATIONALE: Endocarditis with Abiotrophia defectiva represents 4.3% to 6% of all streptococcal endocarditis. The article presents diagnosis issues and the complexity of the treatment. PATIENT CONCERNS: We present the case of a female white patient, aged 26 years, who developed infectious endocarditis caused by A defectiva, in the last trimester of pregnancy, a biofilm-related infection associated with the presence of fixed braces. DIAGNOSES: The diagnosis of infectious endocarditis was confirmed by the cardiac ultrasound examination that revealed a voluminous vegetation on the mitral valve, and acute mitral regurgitation caused by chordae tendinae rupture, and also by isolating Abiotrophia defectiva from two positive blood cultures...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145312/bilateral-femoral-posterior-neurocutaneous-perforater-flap-successfully-treating-fournier-gangrene-a-case-report
#20
Tao Wang, Gang Zhao, Yong-Jun Rui, Jing-Yi Mi
RATIONALE: Necrotizing fasciitis (NF), characterized by widespread fascial necrosis, is a rare disease in clinic. Fournier gangrene (FG) is a special type of NF involved of perineum and scrotum. To our knowledge, no article has reported on bilateral femoral posterior neurocutaneous perforater flap treating for FG. PATIENT CONCERNS: A 61-year-old Chinese male complained of perineal skin necrosis for 19 days. The patient received treatment in other hospital due to chronic bronchitis on April 15th and body temperature ranged from 38 to 39 °C...
November 2017: Medicine (Baltimore)
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