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Microbiology specimen collection

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https://www.readbyqxmd.com/read/27894388/-analysis-of-distribution-and-drug-resistance-of-pathogens-isolated-from-541-hospitalized-children-with-burn-infection
#1
J X Dai, L Li, L Xu, Z H Chen, X Y Li, M Liu, Y Q Wen, X D Chen
Objective: To investigate the distribution and drug resistance of pathogens isolated from hospitalized children with burn infection. Methods: Totally 541 patients were hospitalized in Fujian Medical University Union Hospital, the 180th Hospital of Chinese People's Liberation Army(PLA), the 92th Hospital of PLA, and Longyan First Hospital from January 2013 to December 2015. Totally 848 clinical specimens (blood, catheter tip attachments, wound exudate, etc.) were collected for pathogen detection. After being identified by an automatic microbiological identification system, drug resistance of pathogens to 41 commonly-used antibiotics in clinic including gentamicin, aztreonam, erythromycin, clindamycin, etc...
November 20, 2016: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/27891182/case-control-study-of-diarrheal-disease-etiology-in-individuals-over-5%C3%A2-years-in-southwest-china
#2
Shun-Xian Zhang, Chun-Li Yang, Wen-Peng Gu, Lin Ai, Emmanuel Serrano, Pin Yang, Xia Zhou, Shi-Zhu Li, Shan Lv, Zhi-Sheng Dang, Jun-Hu Chen, Wei Hu, Li-Guang Tian, Jia-Xu Chen, Xiao-Nong Zhou
BACKGROUND: Acute diarrhea is one of the major public health problems worldwide. Most of studies on acute diarrhea have been made on infants aged below 5 years and few efforts have been made to identify the etiological agents of acute diarrhea in people over five, especially in China. METHODS: 271 diarrhea cases and 149 healthy controls over 5 years were recruited from four participating hospitals between June 2014 and July 2015. Each stool specimen was collected to detect a series of enteric pathogens, involving five viruses (Rotavirus group A, RVA; Norovirus, NoV; Sapovirus, SaV; Astrovirus, As; and Adenovirus, Ad), seven bacteria (diarrheagenic Escherichia coli, DEC; non-typhoidal Salmonella, NTS; Shigella spp...
2016: Gut Pathogens
https://www.readbyqxmd.com/read/27890455/the-detection-of-microbial-dna-but-not-cultured-bacteria-is-associated-with-increased-mortality-in-patients-with-suspected-sepsis-a-prospective-multi-centre-european-observational-study
#3
Michael J O'Dwyer, Malgorzata H Starczewska, Jacques Schrenzel, Kai Zacharowski, David Ecker, Rangarajan Sampath, David Brealey, Mervyn Singer, Nicolas Libert, Mark Wilks, Jean-Louis Vincent
OBJECTIVES: Blood culture results inadequately stratify the mortality risk in critically ill patients with sepsis. We sought to establish the prognostic significance of the presence of microbial DNA in the bloodstream of patients hospitalised with suspected sepsis. METHODS: We analysed the data collected during the Rapid Diagnosis of Infections in the Critically Ill (RADICAL) study which compared a novel culture-independent polymerase chain reaction/electrospray ionization-mass spectrometry (PCR/ESI-MS) assay with standard microbiological testing...
November 23, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/27885293/prevalence-of-extended-spectrum-beta-lactamase-producing-klebsiella-pneumoniae-isolated-from-urinary-tract-infected-patients
#4
P Chaudhary, D Bhandari, K Thapa, P Thapa, D Shrestha, H K Chaudhary, A Shrestha, H Parajuli, B P Gupta
BACKGROUND: Klebsiella pneumoniae, one of the bacterial agents associated with urinary tract infection has been often implicated as a major extended spectrum beta-lactamase (ESBL) producer in last few decades. This study was designed to assess the prevalence of ESBL producing Klebsiella pneumoniae in urinary isolates at a tertiary care hospital in Kathmandu, Nepal, from July to December 2014. METHODS: One thousand nine hundred eighty six mid-stream urine specimens were collected aseptically from the clinically suspected patients of urinary tract infections attending Capital Hospital and Research Center, Kathmandu...
May 2016: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/27866468/intratubular-disinfection-with-tri-antibiotic-and-calcium-hydroxide-pastes
#5
Thais Cristina Pereira, Layla Reginna Silva Munhoz De Vasconcelos, Marcia Sirlene Zardin Graeff, Marco Antonio Hungaro Duarte, Clóvis Monteiro Bramante, Flaviana Bombarda De Andrade
OBJECTIVE: The aim of this study was to compare the in vitro intradentinal antimicrobial ability of the calcium hydroxide and tri-antibiotic pastes. MATERIALS AND METHODS: Standard bovine dentin tubes were sterilized and then infected with Enterococcus faecalis by a new contamination protocol of great depths of dentin. The specimens were filled with the medications, divided into two test-groups: calcium hydroxide (Group 1) and tri-antibiotic (Group 2) pastes. After 15 days, the teeth were evaluated by microbiological culture and confocal laser scanning microscopy (CLSM) with viability dye assay LIVE/DEAD inside dentinal tubules...
November 21, 2016: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/27855686/combined-ultrasound-guided-cutting-needle-biopsy-and-standard-pleural-biopsy-for-diagnosis-of-malignant-pleural-effusions
#6
Jinlin Wang, Xinghua Zhou, Xiaohong Xie, Qing Tang, Panxiao Shen, Yunxiang Zeng
BACKGROUND: The most efficient approach to diagnose malignant pleural effusions (MPEs) is still controversial and uncertain. This study aimed to evaluate the utility of a combined approach using ultrasound (US)-guided cutting-needle biopsy (CNB) and standard pleural biopsy (SPB) for diagnosing MPE. METHODS: Pleural effusions were collected from 172 patients for biochemical and microbiological analyses. US-guided CNB and SPB were performed in the same operation sequentially to obtain specimens for histological analysis...
November 17, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27853708/floqswab%C3%A2-optimisation-of-procedures-for-the-recovery-of-microbiological-samples-from-surfaces
#7
Guido Finazzi, Marina Nadia Losio, Giorgio Varisco
The FLOQSwab™ is a specimen collection device worldwide recognised for its superior performance in the clinical diagnostics. The aim of this work was to evaluate FLOQSwab™ for the recovery of microbiological samples from surfaces compared to the traditional swab (rayon tipped swab) as per ISO 18593:2004 standard. The FLOQSwab™, thanks to its innovative manufacturing technology, allows improving the efficiency of recovery and release of analyte. The study has been divided into two experiments. In the first experiment the two swabs were evaluated for their capacity to recover and release the analyte (three different bacterial loads of Escherichia coli)...
June 3, 2016: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/27847012/prevalence-and-species-spectrum-of-both-pulmonary-and-extrapulmonary-nontuberculous-mycobacteria-isolates-at-a-tertiary-care-center
#8
Jyoti Umrao, Dharamveer Singh, Amreen Zia, Swati Saxena, Surendra Sarsaiya, Shushma Singh, Jahanarah Khatoon, Tapan N Dhole
OBJECTIVE/BACKGROUND: Nontuberculous mycobacteria (NTM) infection associated with pulmonary and extrapulmonary disease has been increasing globally. Despite an increase in incidence rate of NTM infection, its prevalence, species diversity, and circulation pattern in India is largely unknown. This study sought to investigate the overall burden and diversity of NTM among both pulmonary and extrapulmonary clinical isolates from a Northern Indian population. METHODS: The study was conducted in the Department of Microbiology, from January 2013 to December 2015...
September 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/27836808/mycoplasma-genitalium-and-trichomonas-vaginalis-in-france-a-point-prevalence-study-in-people-screened-for-sexually-transmitted-diseases
#9
Sabine Pereyre, Cécile Laurier Nadalié, Cécile Bébéar
OBJECTIVES: Mycoplasma genitalium and Trichomonas vaginalis are common causes of sexually transmitted infections but limited prevalence data are available in France. We aimed to evaluate the prevalence of M. genitalium and T. vaginalis infections and to assess prevalence by gender, age, sample collection sites and clinical symptoms. A multicentre collection of specimens was intended to obtain a nationwide overview of the epidemiology. METHODS: Between September 2014 and January 2015, 2652 consecutive urogenital specimens submitted to the microbiology diagnostic departments of 16 French university hospitals for Chlamydia trachomatis and Neisseria gonorrhoeae detection were collected...
November 8, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/27827300/concordance-in-diabetic-foot-ulceration-a-cross-sectional-study-of-agreement-between-wound-swabbing-and-tissue-sampling-in-infected-ulcers
#10
E Andrea Nelson, Alexandra Wright-Hughes, Sarah Brown, Benjamin A Lipsky, Michael Backhouse, Moninder Bhogal, Mwidimi Ndosi, Catherine Reynolds, Gill Sykes, Christopher Dowson, Michael Edmonds, Peter Vowden, Edward B Jude, Tom Dickie, Jane Nixon
BACKGROUND: There is inadequate evidence to advise clinicians on the relative merits of swabbing versus tissue sampling of infected diabetic foot ulcers (DFUs). OBJECTIVES: To determine (1) concordance between culture results from wound swabs and tissue samples from the same ulcer; (2) whether or not differences in bacterial profiles from swabs and tissue samples are clinically relevant; (3) concordance between results from conventional culture versus polymerase chain reaction (PCR); and (4) prognosis for patients with an infected DFU at 12 months' follow-up...
November 2016: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/27800290/antibiogram-of-medical-intensive-care-unit-at-tertiary-care-hospital-setting-of-pakistan
#11
Aayesha Qadeer, Aftab Akhtar, Qurat Ul Ain, Shoab Saadat, Salman Mansoor, Salman Assad, Wasib Ishtiaq, Abid Ilyas, Ali Y Khan, Yousaf Ajam
OBJECTIVE:  To determine the frequency of micro-organisms causing sepsis as well as to determine the antibiotic susceptibility and resistance of microorganisms isolated in a medical intensive care unit. MATERIALS AND METHODS:  This is a cross-sectional analysis of 802 patients from a medical intensive care unit (ICU) of Shifa International Hospital, Islamabad, Pakistan over a one-year period from August 2015 to August 2016. Specimens collected were from blood, urine, endotracheal secretions, catheter tips, tissue, pus swabs, cerebrospinal fluid, ascites, bronchoalveolar lavage (BAL), and pleural fluid...
September 29, 2016: Curēus
https://www.readbyqxmd.com/read/27799637/five-year-antimicrobial-susceptibility-trends-among-bacterial-isolates-from-a-tertiary-health-care-facility-in-kigali-rwanda
#12
Makeda Carroll, Ashok Rangaiahagari, Emmanuel Musabeyezu, Donald Singer, Onyema Ogbuagu
Antimicrobial resistance (AMR) is a global public health threat. There is limited information from Rwanda on AMR trends. This longitudinal study aimed to describe temporal trends of antibiotic susceptibility among common bacteria. We collated the antimicrobial susceptibility results of bacteria cultured from clinical specimens collected from inpatients and outpatients and submitted to the microbiology laboratory at King Faisal Hospital, Kigali, Rwanda, from January 1, 2009, to December 31, 2013. Differences in antimicrobial susceptibility between the first and fifth year of the study for each bacterial species was assessed using χ(2) test...
October 31, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27784640/preanalytics-in-urinalysis
#13
REVIEW
Joris R Delanghe, Marijn M Speeckaert
Urine contains an enormous amount of information. Well-standardized procedures for collection, transport, sample preparation and analysis should become the basis of an effective diagnostic strategy for urinalysis. As reproducibility of urinalysis has been greatly improved due to recent technological progress, preanalytical requirements of urinalysis have gained importance and have become stricter. Since the patients themselves often collect urine specimens, urinalysis is very susceptible to preanalytical issues...
December 2016: Clinical Biochemistry
https://www.readbyqxmd.com/read/27780596/clinical-application-of-a-molecular-assay-for-the-detection-of-dermatophytosis-and-a-novel-non-invasive-sampling-technique
#14
Alice Kizny Gordon, Christopher McIver, Minhee Kim, Dedee F Murrell, Peter Taylor
The dermatophytoses are the most common superficial fungal infections worldwide. Clinical diagnosis is not reliable as there are many differentials, and laboratory diagnosis is required to gain access to treatment in more severe disease. Traditional diagnostic methods are limited by suboptimal sensitivity, specificity and prolonged turnaround times. Molecular methods are being used increasingly in the diagnostic algorithm in the clinical microbiology laboratory. The aim of this study was to evaluate a real-time polymerase chain reaction (RT-PCR) targeting the chitin synthase 1 gene (CHS1) of dermatophytes for analytical specificity, and to assess its clinical application by comparing it to the current methods of microscopy and culture...
October 22, 2016: Pathology
https://www.readbyqxmd.com/read/27773990/propionibacterium-acnes-susceptibility-and-correlation-with-hemolytic-phenotype
#15
Travis E Wright, K Keely Boyle, Thomas R Duquin, John K Crane
BACKGROUND: Many studies have noted an increase in the number of recognized cases of invasive infections due to Propionibacterium acnes, especially after shoulder replacement surgery. The increase in the number of recognized cases of P. acnes, a nonspore-forming, anaerobic, Gram-positive organism, appears due to both an increase in the number of shoulder operations being performed and more specimens being sent for anaerobic cultures. Nevertheless, the optimal surgical and antibiotic management of P...
2016: Infectious Diseases
https://www.readbyqxmd.com/read/27771520/multiple-locus-variable-number-of-tandem-repeat-analysis-as-a-tool-for-molecular-epidemiology-of-botulism-the-italian-experience
#16
Fabrizio Anniballi, Silvia Fillo, Francesco Giordani, Bruna Auricchio, Domenico Azarnia Tehran, Enrica di Stefano, Giuseppina Mandarino, Dario De Medici, Florigio Lista
Clostridium botulinum is the bacterial agent of botulism, a rare but severe neuro-paralytic disease. Because of its high impact, in Italy botulism is monitored by an ad hoc surveillance system. The National Reference Centre for Botulism, as part of this system, collects and analyzes all demographic, epidemiologic, microbiological, and molecular data recovered during cases and/or outbreaks occurred in Italy. A panel of 312 C. botulinum strains belonging to group I were submitted to MLVA sub-typing. Strains, isolated from clinical specimens, food and environmental samples collected during the surveillance activities, were representative of all forms of botulism from all Italian regions...
October 19, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27763479/an-appropriately-performed-conventional-blood-culture-can-facilitate-choice-of-therapy-in-resource-constrained-settings-comparison-with-bactec-9050
#17
P V Surase, G Nataraj, K Pattamadai, P R Mehta, A R Pazare, M C Agarwal, R N Nanavati
AIMS: Comparison of conventional blood culture with BACTEC 9050 for rate and time to detection of microorganisms. SETTINGS AND DESIGN: A prospective study was carried out in a multispecialty tertiary care teaching hospital. SUBJECTS AND METHODS: A total of 835 paired specimens (797 blood and 38 nonblood specimens) were collected and processed according to standard microbiological procedures by both conventional method as well as by BACTEC 9050 automated culture system...
October 2016: Journal of Postgraduate Medicine
https://www.readbyqxmd.com/read/27746999/a-randomized-open-multicenter-clinical-study-on-the-short-course-of-intravenous-infusion-of-750-mg-of-levofloxacin-and-the-sequential-standard-course-of-intravenous-infusion-oral-administration-of-500-mg-of-levofloxacin-for-treatment-of-community-acquired-pneumonia
#18
Tiemei Zhao, Liang-An Chen, Ping Wang, Guizhen Tian, Feng Ye, Huili Zhu, Bei He, Baiying Zhang, Changzhou Shao, Zhijun Jie, Xiwen Gao, Dongxia Wang, Weidong Song, Zhijie Pan, Jin Chen, Xingyi Zhang, Zhancheng Gao, Ping Chen, Youning Liu
BACKGROUND: To compare 5-day regimen of levofloxacin 750 mg IV daily with 7-14-day conventional regimen of levofloxacin 500 mg intravenous to oral (IV/PO) daily for treatment of community-acquired pneumonia (CAP) in Chinese population. METHODS: This was a non-inferiority study to assess the difference of clinical efficacy at the end of treatment (EOT) between two regimens. Adult CAP patients with CURB-65 score 0-2 were enrolled from 17 hospitals in China from November 2012 to July 2014...
September 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27744605/uncommonly-isolated-clinical-pseudomonas-identification-and-phylogenetic-assignation
#19
M Mulet, M Gomila, A Ramírez, S Cardew, E R B Moore, J Lalucat, E García-Valdés
Fifty-two Pseudomonas strains that were difficult to identify at the species level in the phenotypic routine characterizations employed by clinical microbiology laboratories were selected for genotypic-based analysis. Species level identifications were done initially by partial sequencing of the DNA dependent RNA polymerase sub-unit D gene (rpoD). Two other gene sequences, for the small sub-unit ribosonal RNA (16S rRNA) and for DNA gyrase sub-unit B (gyrB) were added in a multilocus sequence analysis (MLSA) study to confirm the species identifications...
October 15, 2016: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/27743679/quality-of-the-aetiological-diagnosis-of-ventilator-associated-pneumonia-in-spain-in-the-opinion-of-intensive-care-specialists-and-microbiologists
#20
Emilio Bouza, José Martínez-Alarcón, Emilio Maseda, Mercedes Palomar, Rafael Zaragoza, María Jesús Pérez-Granda, Patricia Muñoz, Almudena Burillo
INTRODUCTION: Current guidelines for the microbiological diagnosis of ventilator-associated pneumonia (VAP) are imprecise. Based on data provided by intensive care specialists (ICS) and microbiologists, this study defines the clinical practices and microbiological techniques currently used for an aetiological diagnosis of VAP and pinpoints deficiencies. METHODS: Eighty hospitals in the national health network with intensive care and microbiology departments were sent two questionnaires, one for each department, in order to collect data on VAP diagnosis for the previous year...
October 13, 2016: Enfermedades Infecciosas y Microbiología Clínica
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