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https://www.readbyqxmd.com/read/29120606/management-of-respiratory-infections-with-use-of-procalcitonin-moving-toward-more-personalized-antibiotic-treatment-decisions
#1
Yannick Wirz, Angela Branche, Michel Wolff, Tobias Welte, Vandack Nobre, Konrad Reinhart, Ann R Falsey, Pierre Damas, Albertus Beishuizen, Rodrigo O Deliberato, Yahya Shehabi, Jens-Ulrik S Jensen, Beat Mueller, Philipp Schuetz
Due to overlap of clinical findings and low sensitivity of bacterial diagnostic tests, differentiation between bacterial and viral respiratory tract infections remains challenging, ultimately leading to antibiotic overuse in this population of patients. Addition of procalcitonin, a blood biomarker expressed by epithelial cells in response to bacterial infections, to the clinical assessment leads to a reduction in inappropriate antibiotic initiation. Procalcitonin also provides prognostic information about the resolution of illness, and significant decreases over time are a strong signal for the discontinuation of antibiotics...
November 9, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/29100553/translatability-score-revisited-differentiation-for-distinct-disease-areas
#2
REVIEW
Alexandra Wendler, Martin Wehling
BACKGROUND: Translational science supports successful transition of early biomedical research into human applications. In 2009 a translatability score to assess risk and identify strengths and weaknesses of a given project has been designed and successfully tested in case studies. The score elements, in particular the contributing weight factors, are heterogeneous for different disease areas; therefore, the score was individualized for six areas (cardiovascular, oncology, psychiatric, anti-viral, anti-bacterial/fungal and monogenetic diseases)...
November 3, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29099764/molecular-biosensors-for-electrochemical-detection-of-infectious-pathogens-in-liquid-biopsies-current-trends-and-challenges
#3
REVIEW
Susana Campuzano, Paloma Yáñez-Sedeño, José Manuel Pingarrón
Rapid and reliable diagnosis of infectious diseases caused by pathogens, and timely initiation of appropriate treatment are critical determinants to promote optimal clinical outcomes and general public health. Conventional in vitro diagnostics for infectious diseases are time-consuming and require centralized laboratories, experienced personnel and bulky equipment. Recent advances in electrochemical affinity biosensors have demonstrated to surpass conventional standards in regards to time, simplicity, accuracy and cost in this field...
November 3, 2017: Sensors
https://www.readbyqxmd.com/read/29083957/differential-diagnosis-of-flavivirus-infections-in-horses-using-viral-envelope-protein-domain-iii-antigens-in-enzyme-linked-immunosorbent-assay
#4
Thisun B H Piyasena, Yin X Setoh, Jody Hobson-Peters, Natalie A Prow, Helle Bielefeldt-Ohmann, Alexander A Khromykh, David Perera, Mary J Cardosa, Peter D Kirkland, Roy A Hall
In Australia, infection of horses with the West Nile virus (WNV) or Murray Valley encephalitis virus (MVEV) occasionally results in severe neurological disease that cannot be clinically differentiated. Confirmatory serological tests to detect antibody specific for MVEV or WNV in horses are often hampered by cross-reactive antibodies induced to conserved epitopes on the envelope (E) protein. This study utilized bacterially expressed recombinant antigens derived from domain III of the E protein (rE-DIII) of MVEV and WNV, respectively, to determine whether these subunit antigens provided specific diagnostic markers of infection with these two viruses...
October 30, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/29072655/-the-specific-features-of-the-clinical-course-of-acute-suppurative-otitis-media-of-viral-and-mixed-viral-bacterial-etiology-in-the-children-of-the-preschool-age
#5
E Yu Radtsig, O V Bugaichuk
The objective of the present study was to elucidate the spectrum of the pathogenic agents responsible for the development of acute suppurative otitis media in the children of the preschool age and to reveal the specific clinical features of this disease depending on its etiological factors. The study involved 138 patients (186 ears) of either sex at the age from 1 year to 84 months who presented with acute suppurative otitis media. The following methods were employed for the purpose of the study: analysis of the patients' complaints and the past medical histories, examination of the ENT organs, microbiological (bacteriological and virological) studies of secretion from the tympanic cavity, diagnostic endoscopy of the nasal cavity and nasopharynx, laboratory investigations...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/29068251/skin-as-a-marker-of-general-feline-health-cutaneous-manifestations-of-infectious-disease
#6
Katherine Backel, Christine Cain
Practical relevance: Infectious disease in feline patients often presents a diagnostic challenge. This article reviews the most relevant viral, bacterial and protozoal diseases and their cutaneous manifestations. Many of the diseases discussed have overlapping presentations or may mimic more common noninfectious disease processes. The purpose of the article is to reinforce knowledge of common and uncommon infectious diseases, help practitioners identify possible infectious dermatoses, create a comprehensive and prioritized differential list, and provide guidance for the diagnosis of these diseases...
November 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/29065022/a-randomized-cohort-study-of-diagnostic-and-therapeutic-thresholds-in-medical-student-clinical-reasoning
#7
Jennifer N Stojan, Michelle Daniel, Helen K Morgan, Laurie Whitman, Larry D Gruppen
PURPOSE: Learning to make decisions under uncertain conditions is a critical component of diagnostic and therapeutic reasoning. This study sought to determine treatment decisions medical students make when presented with different thresholds of diagnostic uncertainty and whether they appropriately adjust diagnostic probabilities with test information. METHOD: Two classes (2015, 2016) of fourth-year students (N = 342) were presented a patient with viral pneumonia and given 10%, 20%, or 50% pretest probabilities of that patient having a superimposed bacterial infection...
November 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/29033632/review-of-viral-encephalitis-cases-seen-at-a-tertiary-care-center-in-turkey-focus-on-herpes-simplex-type-1
#8
Beyza Çiftçi Kavaklioğlu, Eda Çoban, Aysu Şen, Elif Söylemezoğlu, Mehmet Ali Aldan, Dilek Atakli, Aysun Soysal
INTRODUCTION: The objective of this study was to determine the incidence of herpes simplex encephalitis (HSE), known as the most common, potentially mortal, and treatable cause of sporadic encephalitis, in a sample Turkish population. METHODS: The demographic, clinical, laboratory, imaging, electrophysiology, and polymerase chain reaction (PCR) DNA results of patients examined with a pre-diagnosis of encephalitis were retrospectively examined. RESULTS: A total of 68 patients were included in the study...
September 2017: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/29021600/diagnosing-antimicrobial-resistance
#9
REVIEW
Carey-Ann D Burnham, Jennifer Leeds, Patrice Nordmann, Justin O'Grady, Jean Patel
Antimicrobial resistance constitutes a global burden and is one of the major threats to public health. Although the emergence of resistant microorganisms is a natural phenomenon, the overuse or inappropriate use of antimicrobials has had a great effect on resistance evolution. Rapid diagnostic tests that identify drug-resistant bacteria, determine antimicrobial susceptibility and distinguish viral from bacterial infections can guide effective treatment strategies. Moreover, rapid diagnostic tests could facilitate epidemiological surveillance, as emerging resistant infectious agents and transmission can be monitored...
October 12, 2017: Nature Reviews. Microbiology
https://www.readbyqxmd.com/read/29018819/the-clinical-significance-of-filmarray-respiratory-panel-in-diagnosing-community-acquired-pneumonia
#10
Huanzhu Chen, Huilan Weng, Meirui Lin, Ping He, Yazhen Li, Qingdong Xie, Changwen Ke, Xiaoyang Jiao
AIM: FilmArray Respiratory Panel (FilmArray RP) test is an emerging diagnostic method in fast detecting multiple respiratory pathogens; the methodology and clinical significance of FilmArray RP in community-acquired pneumonia (CAP) diagnosis were evaluated in this study. METHODS: Specimens from 74 patients with CAP were analyzed and compared using FilmArray RP, traditional multiple PCR assay, bacterial (or fungal) culture, and serological detection. RESULTS: FilmArray RP and multiplex PCR showed 100% coincidence rate in detecting coronaviruses 229E, OC43, HKU1, and NL63, human metapneumovirus, influenza A and B, and parainfluenza viruses (PIV1, PIV2, and PIV4)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28991170/diagnostic-accuracy-of-febridx-a-rapid-test-to-detect-immune-responses-to-viral-and-bacterial-upper-respiratory-infections
#11
Wesley H Self, Jeffrey Rosen, Stephan C Sharp, Michael R Filbin, Peter C Hou, Amisha D Parekh, Michael C Kurz, Nathan I Shapiro
C-reactive protein (CRP) and myxovirus resistance protein A (MxA) are associated with bacterial and viral infections, respectively. We conducted a prospective, multicenter, cross-sectional study of adults and children with febrile upper respiratory tract infections (URIs) to evaluate the diagnostic accuracy of a rapid CRP/MxA immunoassay to identify clinically significant bacterial infection with host response and acute pathogenic viral infection. The reference standard for classifying URI etiology was an algorithm that included throat bacterial culture, upper respiratory PCR for viral and atypical pathogens, procalcitonin, white blood cell count, and bandemia...
October 7, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28987194/overview-of-cerebrospinal-fluid-cytology
#12
Jasmin Rahimi, Adelheid Woehrer
Cerebrospinal fluid (CSF) cytology, i.e., the cytologic evaluation of its cellular composition, forms an integral part of the neurologist's armamentarium. Total and differential cell counts provide important first information across a spectrum of pathologic conditions involving the central nervous system and its coverings. CSF samples require immediate processing, ideally within 1 hour from collection. Upon centrifugation cytology is commonly assessed on May-Grunwald-Giemsa stains. Several additional stains are available for the identification of infectious agents such as bacteria or fungi, or the further specification of neoplastic cells by immunocytochemistry...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28982020/streptococcus-phocae-in-marine-mammals-of-northeastern-pacific-and-arctic-canada-a-retrospective-analysis-of-85-postmortem-investigations
#13
Nicole D Taurisano, Brian P Butler, Diana Stone, Harry Hariharan, Paul J Fields, Hugh W Ferguson, Martin Haulena, Paul Cotrell, Ole Nielsen, Stephen Raverty
Streptococcus phocae is a pathogen of marine mammals, although its pathogenicity remains poorly understood. Recovery of this bacterium from asymptomatic carriers suggests that it is an opportunistic pathogen. We investigated the role of S. phocae in naturally occurring disease and its significance as a pathogen based on postmortem investigations. Between 2007 and 2012, 1,696 whole carcasses, tissue samples, or both were submitted from the northeastern Pacific and Arctic Canada for diagnostic testing. Streptococcus phocae was cultured from phocids (n=66), otariids (n=12), harbor porpoises (Phocoena phocoena; n=5), and sea otters (Enhydra lutris; n=2)...
October 5, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28965660/assessment-of-confocal-microscopy-for-the-diagnosis-of-polymerase-chain-reaction-positive-acanthamoeba-keratitis-a-case-control-study
#14
Sophie De Craene, Juliette Knoeri, Cristina Georgeon, Philippe Kestelyn, Vincent M Borderie
PURPOSE: To determine in vivo confocal microscopy diagnostic criteria to diagnose Acanthamoeba keratitis (AK) using polymerase chain reaction (PCR) as the reference diagnostic technique. DESIGN: Retrospective case-control study. Data were recorded prospectively and analyzed retrospectively. PARTICIPANTS: Fifty patients with PCR-positive AK (study group) and 50 patients with bacterial, fungal, viral, or immune keratitis featuring negative Acanthamoeba PCR results (control group)...
September 28, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28942073/update-on-the-management-of-infectious-keratitis
#15
REVIEW
Ariana Austin, Tom Lietman, Jennifer Rose-Nussbaumer
Infectious keratitis is a major global cause of visual impairment and blindness, often affecting marginalized populations. Proper diagnosis of the causative organism is critical, and although culture remains the prevailing diagnostic tool, newer techniques such as in vivo confocal microscopy are helpful for diagnosing fungus and Acanthamoeba. Next-generation sequencing holds the potential for early and accurate diagnosis even for organisms that are difficult to culture by conventional methods. Topical antibiotics remain the best treatment for bacterial keratitis, and a recent review found all commonly prescribed topical antibiotics to be equally effective...
November 2017: Ophthalmology
https://www.readbyqxmd.com/read/28940983/changes-in-trends-and-impact-of-testing-for-influenza-in-infants-with-fever-under-90-days-of-age
#16
Suji Kim, Hye Min Moon, Joon Kee Lee, Kyuyol Rhie, Ki Wook Yoon, Eun Hwa Choi, Hoan Jong Lee, Hyunju Lee
BACKGROUND: Infants less than 90 days who present with fever are commonly subject to various invasive procedures due to risk of bacterial infections in this age group. However a great proportion are due to viral infections, including influenza. The aim of this study was to assess the impact of testing influenza in infants < 90 days with fever as well as analyze the subjects' characteristics to identify which infants should be considered for such testing. METHODS: Clinical characteristics and trends in influenza virus testing and treatment were analyzed among febrile infants <90 days who came to the emergency room and were diagnosed with influenza during 2005 to 2015...
September 22, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28933509/-targeting-the-skin-erythema-multiforme-in-dogs-and-cats
#17
Ralf Mueller, Teresa M S A Boehm, Christoph J Klinger, Laura Udraite, Ralf S Mueller
This review article will describe the complex nature of erythema multiforme in dogs and cats. The disease pattern will be illustrated in terms of etiology, pathogenesis, clinical signs, diagnostics and therapy. Erythema multiforme is a rare, immune-mediated skin disorder with an acute specific reaction pattern of skin and mucous membranes against different underlying causes. Reported triggering factors include drugs, food ingredients and neoplasias, but viral or bacterial infections and vaccine reactions were also identified...
September 20, 2017: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/28931399/principles-practices-and-knowledge-of-clinicians-when-assessing-febrile-children-a-qualitative-study-in-kenya
#18
Anneka M Hooft, Kelsey Ripp, Bryson Ndenga, Francis Mutuku, David Vu, Kimberly Baltzell, Linnet N Masese, John Vulule, Dunstan Mukoko, A Desiree LaBeaud
BACKGROUND: Clinicians in low resource settings in malaria endemic regions face many challenges in diagnosing and treating febrile illnesses in children. Given the change in WHO guidelines in 2010 that recommend malaria testing prior to treatment, clinicians are now required to expand the differential when malaria testing is negative. Prior studies have indicated that resource availability, need for additional training in differentiating non-malarial illnesses, and lack of understanding within the community of when to seek care play a role in effective diagnosis and treatment...
September 20, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28927538/advances-in-ligase-chain-reaction-and-ligation-based-amplifications-for-genotyping-assays-detection-and-applications
#19
REVIEW
Abdullah A Gibriel, Ola Adel
Genetic variants have been reported to cause several genetic diseases. Various genotyping assays have been developed for diagnostic and screening purposes but with certain limitations in sensitivity, specificity, cost effectiveness and/or time savings. Since the discovery of ligase chain reaction (LCR) in the late nineties, it became one of the most favored platforms for detecting these variants and also for genotyping low abundant contaminants. Recent and powerful modifications with the integration of various detection strategies such as electrochemical and magnetic biosensors, nanoparticles (NPs), quantum dots, quartz crystal and leaky surface acoustic surface biosensors, DNAzyme, rolling circle amplification (RCA), strand displacement amplification (SDA), surface enhanced raman scattering (SERS), chemiluminescence and fluorescence resonance energy transfer have been introduced to both LCR and ligation based amplifications to enable high-throughput and inexpensive multiplex genotyping with improved robustness, simplicity, sensitivity and specificity...
July 2017: Mutation Research
https://www.readbyqxmd.com/read/28894729/procalcitonin-for-diagnostics-and-treatment-decisions-in-pediatric-lower-respiratory-tract-infections
#20
Philipp Baumann, Gurli Baer, Jessica Bonhoeffer, Aline Fuchs, Verena Gotta, Ulrich Heininger, Nicole Ritz, Gabor Szinnai, Jan Bonhoeffer
Mortality and morbidity remain high in pediatric lower respiratory tract infections (LRTIs) despite progress in research and implementation of global diagnostic and treatment strategies in the last decade. Still, 120 million annual episodes of pneumonia affect children younger than 5 years each year leading to 1.3 million fatalities with the major burden of disease carried by low- and middle-income countries (95%). The definition of pneumonia is still challenging. Traditional diagnostic measures (i.e., chest radiographs, C-reactive protein) are unable to distinguish viral and from bacterial etiology...
2017: Frontiers in Pediatrics
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