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https://www.readbyqxmd.com/read/28634555/a-rare-case-of-pneumopericardium-in-the-setting-of-tuberculous-constrictive-pericarditis
#1
Lauro L Abrahan Iv, Stephanie Martha O Obillos, Jaime Alfonso M Aherrera, Jose Donato A Magno, Celia Catherine C Uy-Agbayani, Ulysses King G Gopez, Jobelle Joyce Anne R Baldonado
A 28-year-old Filipino male was admitted due to high-grade fevers and dyspnea on a background of chronic cough and weight loss. Due to clinical and echocardiographic signs of cardiac tamponade, emergency pericardiocentesis was performed on his first hospital day. Five days after, chest radiographs showed new pockets of radiolucency within the cardiac shadow, indicative of pneumopericardium. On repeat echo, air microbubbles admixed with loculated effusion were visualized in the anterior pericardial space. Constrictive physiology was also supported by a thickened pericardium, septal bounce, exaggerated respiratory variation in AV valve inflow, and IVC plethora...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28631909/-characterization-of-microbial-flora-in-patients-suspected-of-having-urogenital-tuberculosis
#2
A G Cherednichenko, E V Kulchavenya
INTRODUCTION: In the structure of tuberculosis morbidity, urogenital tuberculosis (UGT) ranks second or third only to pulmonary tuberculosis. Every fourth patient has the stage of cavern formation at first presentation. Seventy five percent of nephrotuberculosis cases co-occur with nonspecific pyelonephritis, which excludes "sterile pyuria". We aimed to determine the microbial spectrum of urine and gonadal appendages in patients with suspected UGT and to investigate the susceptibility of the isolated microorganisms to the main antibacterial drugs...
June 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28630687/emerging-antimicrobial-resistance-in-early-and-late-onset-neonatal-sepsis
#3
Lamiaa Mohsen, Nermin Ramy, Dalia Saied, Dina Akmal, Niveen Salama, Mona M Abdel Haleim, Hany Aly
BACKGROUND: Compared to developed countries, the use of antimicrobials in Egypt is less regulated and is available over the counter without the need for prescriptions. The impact of such policy on antimicrobial resistance has not been studied. This study aimed to determine the prevalence of early and late onset sepsis, and the frequency of antimicrobial resistance in a major referral neonatal intensive care unit (NICU). METHODS: The study included all neonates admitted to the NICU over a 12-month period...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28629721/a-16-year-retrospective-surveillance-report-on-the-pathogenic-features-and-antimicrobial-susceptibility-of-pseudomonas-aeruginosa-isolates-from-fahju-in-guangzhou-representative-of-southern-china
#4
Jinhong Xie, Ling Yang, Brian M Peters, Lequn Chen, Dingqiang Chen, Bing Li, Lin Li, Guangchao Yu, Zhenbo Xu, Mark E Shirtliff
Pseudomonas aeruginosa is a major pathogen responsible for nosocomial infections. A 16-year retrospective report from 2000 to 2015 was conducted to assess the antimicrobial resistance of P. aeruginosa in Southern China. A total of 1387 P. aeruginosa were collected from inpatients and outpatients. Susceptibility testing results were interpreted according to the Clinical and Laboratory Standards Institute (CLSI, 2015). Piperacillin, piperacillin-tazobactam, ceftazidime, aminoglycosides and carbapenems remained to be active against P...
June 16, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28629155/repositioning-fda-drugs-as-potential-cruzain-inhibitors-from-trypanosoma-cruzi-virtual-screening-in-vitro-and-in-vivo-studies
#5
Isidro Palos, Edgar E Lara-Ramirez, Julio Cesar Lopez-Cedillo, Carlos Garcia-Perez, Muhammad Kashif, Virgilio Bocanegra-Garcia, Benjamin Nogueda-Torres, Gildardo Rivera
Chagas disease (CD) is a neglected disease caused by the parasite Trypanosoma cruzi, which affects underdeveloped countries. The current drugs of choice are nifurtimox and benznidazole, but both have severe adverse effects and less effectivity in chronic infections; therefore, the need to discover new drugs is essential. A computer-guided drug repositioning method was applied to identify potential FDA drugs (approved and withdrawn) as cruzain (Cz) inhibitors and trypanocidal effects were confirmed by in vitro and in vivo studies...
June 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28627952/clinical-efficacy-of-piperacillin-tazobactam-in-the-treatment-of-complicated-skin-and-soft-tissue-infections
#6
Kohei Takimoto, Qianzhi Wang, Daisuke Suzuki, Mitsuya Katayama, Yoshiro Hayashi
Introduction Complicated skin and soft tissue infections (cSSTIs) are skin and soft tissue infections (SSTIs) that involve deep soft tissue. cSSTIs often require surgical intervention and/or hospitalization. cSSTIs are associated with significant mortality and morbidity, and carry a significant burden on health care systems. Piperacillin/tazobactam has been regarded as a standard treatment for cSSTIs because of its antibiotic spectrum, safety and clinical efficacy. Several antibiotics, as compared to piperacillin/tazobactam, have been evaluated in the treatment of cSSTIs...
June 19, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28625717/clinical-impact-of-non-antibiotic-recommendations-by-a-multi-disciplinary-antimicrobial-stewardship-team
#7
Tat Ming Ng, Vanessa Y Phang, Barnaby Young, Sock Hoon Tan, Hui Lin Tay, Michelle W Tan, Li Min Ling, Brenda S Ang, Christine B Teng, David C Lye
INTRODUCTION: The multi-disciplinary antimicrobial stewardship team at the study hospital conducts prospective review and feedback on all inpatient orders of piperacillin-tazobactam and carbapenems. In addition, the team provides non-antibiotic recommendations (i.e. additional investigations and infectious disease reviews). This study aimed to describe the impact of these recommendations on patient outcomes. METHODS: Patients on carbapenem and piperacillin-tazobactam who received at least one non-antibiotic recommendation between January 2012 and August 2014 were included in this study...
June 15, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28624864/the-clinical-significance-of-pneumonia-in-patients-with-respiratory-specimens-harbouring-multidrug-resistant-pseudomonas-aeruginosa-a-5-year-retrospective-study-following-5667-patients-in-four-general-icus
#8
B Borgatta, S Gattarello, C A Mazo, A T Imbiscuso, M N Larrosa, M Lujàn, J Rello
Pseudomonas aeruginosa is the leading cause of pneumonia in intensive care units (ICUs), with multidrug-resistant (MDR) strains posing a serious threat. The aim of this study was to assess the clinical relevance of MDR Pseudomonas isolates in respiratory clinical specimens. A 5-year retrospective observational study in four medical-surgical ICUs from a referral hospital was carried out. Of 5667 adults admitted to the ICU, 69 had MDR-PA in respiratory samples: 31 were identified as having pneumonia (HAP/VAP): 21 ventilator-associated pneumonia (VAP) and ten hospital-acquired pneumonia (HAP)...
June 17, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28618388/simultaneous-determination-of-nine-%C3%AE-lactam-antibiotics-in-human-plasma-by-an-ultrafast-hydrophilic-interaction-chromatography-tandem-mass-spectrometry
#9
Alan Abdulla, Soma Bahmany, Rixt A Wijma, Bart C H van der Nagel, Birgit C P Koch
Contemporary β-lactam antibiotic dosing is debatable in severely ill patients, since the occurrence of pathophysiological changes in critical illness can result in great inter-individual variability. Therapeutic drug monitoring (TDM) is a commonly used dosing strategy to optimize exposure and thereby minimize toxicity and maximize the efficacy. Currently, TDM of β-lactam antibiotics is rarely performed, due to poor availability in clinical practice. We describe an ultrafast Hydrophilic-Interaction Chromatography (HILIC) based UPLC-MS/MS method for the determination of amoxicillin, benzylpenicillin, cefotaxime, cefuroxime, ceftazidime, flucloxacillin, imipenem, meropenem and piperacillin in human plasma...
June 8, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28607019/in-vitro-in-vivo-discordance-with-humanized-piperacillin-tazobactam-exposures-against-piperacillin-tazobactam-resistant-pan-%C3%AE-lactam-susceptible-klebsiella-pneumoniae
#10
S M Stainton, M L Monogue, D P Nicolau
Recent findings have identified K. pneumoniae strains that are pan-β-lactam-susceptible (PBL-S), but piperacillin-tazobactam-resistant (TZP-R) in vitro We assessed the efficacy of a humanized exposure of TZP against 12 TZP-R/PBL-S K. pneumoniae isolates in an immunocompromised murine lung infection model. Discordance between the in vitro resistance profile and the in vivo efficacy of human simulated TZP exposures against this phenotypic profile was observed. Additional studies are required to define the clinical implications these TZP-R/PBL-S strains...
June 12, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28605515/fri-2-carbapenemase-producing-enterobacter-cloacae-complex-in-the-uk
#11
Danièle Meunier, Jacqueline Findlay, Michel Doumith, Daniel Godoy, Claire Perry, Rachel Pike, Firza Gronthoud, Theresa Shryane, Laurent Poirel, William Welfare, Neil Woodford, Katie L Hopkins
Objectives: Detection of rarer carbapenemases is challenging, as it requires molecular assays with comprehensive coverage or the use of phenotypic methods for the detection of carbapenemase activity. We describe a new class A carbapenemase, FRI-2, in an Enterobacter cloacae complex isolate following implementation of an in-house multiplex PCR for the detection of 'rare' class A carbapenemases. Methods: MICs were determined by agar dilution. A carbapenem-resistant E...
June 10, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28604274/routine-prophylactic-antimicrobial-use-is-associated-with-increased-phenotypic-and-genotypic-resistance-in-commensal-escherichia-coli-isolates-recovered-from-healthy-fattening-pigs-on-farms-in-thailand
#12
Kittitat Lugsomya, Thanitta Chatsuwan, Waree Niyomtham, Padet Tummaruk, David J Hampson, Nuvee Prapasarakul
This study examined antimicrobial resistance (AMR) profiles in commensal Escherichia coli derived from healthy fattening pigs in Thai farms that used prophylactic antimicrobials (in-feed tiamulin fumarate and amoxicillin) [PAs], therapeutic antimicrobials (injectable enrofloxacin or gentamicin) [TAs], or no antimicrobials [NAs]. Commensal E. coli were used as a proxy for overall AMR on the farms. There was a high level of multidrug resistance in all three categories of farm, with isolates showing resistance to β-lactams (amoxicillin, ampicillin, and piperacillin) and tetracyclines (tetracycline), and commonly possessing tetA, blaTEM, and plasmid replicons FIB and F...
June 12, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28600499/clinical-on-site-monitoring-of-%C3%A3-lactam-antibiotics-for-a-personalized-antibiotherapy
#13
R Bruch, C Chatelle, A Kling, B Rebmann, S Wirth, S Schumann, W Weber, C Dincer, G Urban
An appropriate antibiotherapy is crucial for the safety and recovery of patients. Depending on the clinical conditions of patients, the required dose to effectively eradicate an infection may vary. An inadequate dosing not only reduces the efficacy of the antibiotic, but also promotes the emergence of antimicrobial resistances. Therefore, a personalized therapy is of great interest for improved patients' outcome and will reduce in long-term the prevalence of multidrug-resistances. In this context, on-site monitoring of the antibiotic blood concentration is fundamental to facilitate an individual adjustment of the antibiotherapy...
June 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28592240/randomized-controlled-trial-of-piperacillin-tazobactam-cefepime-and-ertapenem-for-the-treatment-of-urinary-tract-infection-caused-by-extended-spectrum-beta-lactamase-producing-escherichia-coli
#14
Yu Bin Seo, Jacob Lee, Young Keun Kim, Seung Soon Lee, Jeong-A Lee, Hyo Youl Kim, Young Uh, Han-Sung Kim, Wonkeun Song
BACKGROUND: Due to limited therapeutic options, the spread of extended-spectrum beta-lactamases (ESBLs) have become a major public health concern. We conducted a prospective, randomized, open-label comparison of the therapeutic efficacy of piperacillin-tazobactam (PTZ), cefepime, and ertapenem in febrile nosocomial urinary tract infection with ESBL-producing Escherichia coli (ESBL-EC). METHODS: This study was conducted at three university hospitals between January 2013 and August 2015...
June 7, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28591808/relationship-between-%C3%AE-lactamase-production-and-resistance-phenotype-in-klebsiella-pneumoniae-strains
#15
Jeongjin Kim, Tian Ding, Juhee Ahn
This study was designed to evaluate the resistance phenotypes of β-lactamases-producing Klebsiella pneumoniae strains. The antibiotic susceptibility and β-lactamase activity of K. pneumoniae strains, including antibiotic-sensitive K. pneumoniae (KPWT), ciprofloxacin-induced resistant K. pneumoniae (KPCIP), and clinically isolated K. pneumoniae strains (KPCI237, KPCI263, and KPCI272), were determined in the absence and presence of β-lactamase inhibitors (BLI 489, sulbactam, clavulanate, and tazobactam). All strains were highly resistant to ampicillin in the absence of β-lactamase inhibitors (MIC≥ 512 μg mL-1)...
June 7, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28589047/native-valve-endocarditis-due-to-veillonella-species-a-case-report-and-review-of-the-literature
#16
Lakshmi Saladi, Cosmina Zeana, Manisha Singh
Veillonella species are fastidious bacteria that have been isolated from skin, dental, and respiratory tract infections and rarely have been implicated in serious infections like meningitis, endocarditis, and osteomyelitis. A 76-year-old woman presented to our hospital with fever, vomiting, and generalized weakness for 3 days. A transthoracic echocardiogram showed a mobile structure on anterior mitral valve leaflet measuring 0.9 cm suggestive of vegetation. Empiric therapy with vancomycin and piperacillin-tazobactam was started with clinical resolution of her symptoms...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28584146/a-targeted-metabolomics-analysis-identifies-intestinal-microbiota-derived-urinary-biomarkers-of-colonization-resistance-in-antibiotic-treated-mice
#17
Mark E Obrenovich, Mary Ann Tima, Alex Polinkovsky, Renliang Zhang, Steven N Emancipator, Curtis J Donskey
Antibiotics excreted into the intestinal tract may disrupt the microbiota that provide colonization resistance against enteric pathogens and alter normal metabolic functions of the microbiota. Many of the bacterial metabolites produced in the intestinal tract are absorbed systemically and excreted in urine. Here, we used a mouse model to test the hypothesis that alterations in levels of targeted bacterial metabolites in urine specimens could provide useful biomarkers indicating disrupted or intact colonization resistance...
June 5, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28578254/therapeutic-drug-monitoring-of-beta-lactam-antibiotics-influence-of-sample-stability-on-the-analysis-of-piperacillin-meropenem-ceftazidime-and-flucloxacillin-by-hplc-uv
#18
Nadine Pinder, Thorsten Brenner, Stefanie Swoboda, Markus A Weigand, Torsten Hoppe-Tichy
INTRODUCTION: Therapeutic drug monitoring (TDM) is a useful tool to optimize antibiotic therapy. Increasing interest in alternative dosing strategies of beta-lactam antibiotics, e.g. continuous or prolonged infusion, require a feasible analytical method for quantification of these antimicrobial agents. However, pre-analytical issues including sample handling and stability are to be considered to provide valuable analytical results. METHODS: For the simultaneous determination of piperacillin, meropenem, ceftazidime and flucloxacillin, a high performance liquid chromatography (HPLC) method including protein precipitation was established utilizing ertapenem as internal standard...
May 22, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28574021/isolation-of-bacteria-from-diabetic-foot-ulcers-with-special-reference-to-anaerobe-isolation-by-simple-two-step-combustion-technique-in-candle-jar
#19
Jayeeta Haldar, Poulami Mukherjee, Satinath Mukhopadhyay, Prasanta Kumar Maiti
BACKGROUND & OBJECTIVES: Although polymicrobial infections involving both aerobic and anaerobic bacteria are very common in diabetic foot ulcers, in many centres of developing countries, anaerobes are rarely isolated due to technical difficulties. This can be overcome by using a new simple, innovative technique of a combination of candle combustion and use of acidified copper-coated steel wool, as reported here. METHODS: In-house developed method was used in a prospective clinico-microbiological study for anaerobes from randomly selected 43 patients with diabetic foot ulcers along with conventional method of anaerobic culture in GasPak system and aerobic culture by standard laboratory procedures...
January 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28566083/-a-case-of-coccidioidomycosis-in-turkey-imported-from-the-united-states-of-america
#20
Seniha Başaran, Nilgün Karabıçak, Serap Şimşek Yavuz, Nathan P Wiederhold, Seda Şafak, Aysun Sarıbuğa, Deanna A Sutton, Züleyha Bingöl, Atahan Çağatay, Halit Özsüt, Zeki Kılıçaslan, Haluk Eraksoy
Coccidioidomycosis caused by Coccidioides immitis or Coccidioides posadasii is a rare infectious disease except in endemic regions. In this report the third documented imported case of coccidioidomycosis in Turkey was presented. A thirty-year-old male patient was admitted to our hospital with fever and purulent drainage from his chest tube. He had worked in Arizona, USA, until 4 months before this presentation. While in Arizona, he experienced cough and hemoptysis and was diagnosed as pulmonary coccidioidomycosis...
April 2017: Mikrobiyoloji Bülteni
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