Read by QxMD icon Read

Coagulase-negative staphylococci

Gunnar T R Hischebeth, Sascha Gravius, Ernst Molitor, Hendrik Kohlhof, Achim Hoerauf, Caecilia Hilgers, Thomas M Randau
Antibiotic therapy is essential in foreign body associated infections. The treatment regime should aim at high tissue concentrations, high bioavailability, high biofilm penetration and good tolerance. We investigated whether the new cephalosporin ceftobiprole is active against clinical isolates from musculoskeletal foreign body associated infections. One hundred ninety-six staphylococci isolates (coagulase negative staphylococci and Staphylococcus aureus) derived from foreign body associated infections were tested towards susceptibility to ceftobiprole, using a test strip assay and broth microdilution...
January 31, 2018: Diagnostic Microbiology and Infectious Disease
E Friling, P Montan
BACKGROUND: Intracameral cefuroxime as prophylaxis against postoperative endophthalmitis (POE) following cataract surgery was introduced in 1996 at St Erik Eye Hospital. Soon after the introduction of intracameral cefuroxime the rate of POE fell dramatically and a shift in the aetiology was noticed. AIM: To analyse bacteriology and susceptibility to cefuroxime before and after the introduction. METHODS: All culture-proven endophthalmitis cases at St Erik Eye Hospital after cataract surgery performed over a 20-year period were included in a retrospective observational study...
February 9, 2018: Journal of Hospital Infection
Christophe Isnard, Anne Dhalluin, Damasie Malandain, Quentin Bruey, Michel Auzou, Jocelyn Michon, Jean-Christophe Giard, François Guérin, Vincent Cattoir
OBJECTIVES: Ceftaroline and ceftobiprole are new parenteral cephalosporins with potent activity against methicillin-resistant (MR) staphylococci, which are the leading cause of prosthetic joint infections (PJIs). The aim of the study was to determine and compare in vitro activities of both molecules against staphylococcal isolates recovered from clinically-documented PJIs. METHODS: A collection of 200 non-redundant clinical isolates (100 Staphylococcus aureus and 100 coagulase-negative staphylococci [CoNS], including 19 and 27 MR isolates, respectively) was studied...
February 5, 2018: Journal of Global Antimicrobial Resistance
Fernando Chaves, José Garnacho-Montero, José Luis Del Pozo, Emilio Bouza, José Antonio Capdevila, Marina de Cueto, M Ángeles Domínguez, Jaime Esteban, Nuria Fernández-Hidalgo, Marta Fernández Sampedro, Jesús Fortún, María Guembe, Leonardo Lorente, Jose Ramón Paño, Paula Ramírez, Miguel Salavert, Miguel Sánchez, Jordi Vallés
Catheter-related bloodstream infections (CRBSI) constitute an important cause of hospital-acquired infection associated with morbidity, mortality, and cost. The aim of these guidelines is to provide updated recommendations for the diagnosis and management of CRBSI in adults. Prevention of CRBSI is excluded. Experts in the field were designated by the two participating Societies (Sociedad Española de Enfermedades Infecciosas y Microbiología Clínica and the Sociedad Española de Medicina Intensiva, Crítica y Unidades Coronarias)...
February 2018: Enfermedades Infecciosas y Microbiología Clínica
Dennis Knaack, Evgeny A Idelevich, Barbara Körber-Irrgang, Michael Kresken, Karsten Becker
Valid detection of methicillin-resistant Staphylococcus aureus (MRSA) is a precondition for MRSA prevention measures. Most of the available MRSA screening tests are based either on the identification of colony material grown on solid agar media or on direct molecular approaches. The HB&L MRSA KIT (Alifax, Polverara, Italy) is designed to screen for MRSA in liquid cultures applying the light scattering technology. Here, the assay was evaluated with pure culture isolates from solid agar media on a representative subset of 29 MRSA and 171 methicillin-susceptible S...
January 30, 2018: Journal of Microbiological Methods
Yu-Tzu Lin, Wei-Chun Hung, Jui-Chang Tsai, Kin Hong Leong, Hsiao-Jan Chen, Po-Ren Hsueh, Lee-Jene Teng
We examined the fusidic acid resistance determinants fusB, fusC, fusD, and fusF in coagulase-negative staphylococci (CoNS) clinical isolates. Among 208 resistant isolates, the fusB gene was the most common determinant in each species except in S. hominis subsp. hominis or in species carrying fusD or fusF. In S. hominis subsp. hominis, the fusC gene was the major determinant responsible for fusidic acid resistance. To understand the genetic context of fusC in S. hominis subsp. hominis, 31 fusC-positive S. hominis subsp...
January 30, 2018: International Journal of Antimicrobial Agents
F Chaves, J Garnacho-Montero, J L Del Pozo, E Bouza, J A Capdevila, M de Cueto, M Á Domínguez, J Esteban, N Fernández-Hidalgo, M Fernández Sampedro, J Fortún, M Guembe, L Lorente, J R Paño, P Ramírez, M Salavert, M Sánchez, J Vallés
Catheter-related bloodstream infections (CRBSI) constitute an important cause of hospital-acquired infection associated with morbidity, mortality, and cost. The aim of these guidelines is to provide updated recommendations for the diagnosis and management of CRBSI in adults. Prevention of CRBSI is excluded. Experts in the field were designated by the two participating Societies (the Spanish Society of Infectious Diseases and Clinical Microbiology and [SEIMC] and the Spanish Society of Spanish Society of Intensive and Critical Care Medicine and Coronary Units [SEMICYUC])...
January 2018: Medicina Intensiva
Lakshmi Vemu, Sukanya Sudhaharan, Neeraja Mamidi, Padmasri Chavali
INTRODUCTION: Chronic osteomyelitis (COM) is a common infection, especially in developing countries. An adequate bone biopsy specimen processed with appropriate microbiology culture methods for isolation and identification of the causative organisms is considered as the gold standard for the diagnosis of osteomyelitis. MATERIALS AND METHODS: The present study is a retrospective microbiology analysis of the specimen from 219 clinically diagnosed cases of COM between January 2013 and April 2016...
January 2018: Journal of Laboratory Physicians
Oscar Murillo, Imma Grau, Joan Gomez-Junyent, Celina Cabrera, Alba Ribera, Fe Tubau, Carmen Peña, Javier Ariza, Roman Pallares
PURPOSE: The relationship between infective endocarditis (IE) and osteoarticular infections (OAIs) are not well known. We aimed to study the characteristics of patients with IE and OAIs, and the interactions between these two infections. METHODS: An observational study (1993-2014) which includes two cohorts: (1) patients with IE (n = 607) and (2) patients with bacteremic OAIs (n = 458; septic arthritis of peripheral and axial skeleton, and vertebral and peripheral osteomyelitis)...
February 2, 2018: Infection
M A Pfaller, R K Flamm, L R Duncan, J M Streit, M Castanheira, H S Sader
Susceptibility testing of ceftobiprole and comparators against 12,240 isolates was performed following CLSI/EUCAST guidelines. The percentage of susceptible MRSA isolates was higher for ceftobiprole (96.5% susceptible) than for ceftaroline (86.2% susceptible). Both ceftobiprole (MIC50/90, 0.5/2 mg/L) and ceftaroline (MIC50/90, 0.25/1 mg/L) demonstrated potent activity against coagulase-negative staphylococci. Ceftobiprole demonstrated good potency against Enterococcus faecalis (MIC50/90 values of 0.5/2 mg/L); ceftaroline (MIC50/90, 2/8 mg/L) was 4-fold less active against these strains...
January 3, 2018: Diagnostic Microbiology and Infectious Disease
Aliye Gülmez Sağlam, Mitat Şahin, Elif Çelik, Özgür Çelebi, Doğan Akça, Salih Otlu
Aim: This study was conducted to determine the role of Staphylococcus in the formation of subclinical mastitis in cows and to isolate the phage against isolated Staphylococcus aureus strains. Materials and Methods: In this study, 400 milk cows were screened by California Mastitis Test (CMT) for subclinical mastitis and 235 udders of 96 cows, which were determined to be positive, were evaluated for Staphylococcus. Milk samples were evaluated using conventional and molecular methods...
December 2017: Veterinary World
Huda Saber, Azmiza Syawani Jasni, Tengku Zetty Maztura Tengku Jamaluddin, Rosni Ibrahim
Coagulase-negative staphylococci (CoNS) are considered low pathogenic organisms. However, they are progressively causing more serious infections with time because they have adapted well to various antibiotics owing to their ability to form biofilms. Few studies have been conducted on CoNS in both, hospital and community-acquired settings, especially in Malaysia. Thus, it is important to study their species and gene distributions. A mobile genetic element, staphylococcal cassette chromosome mec (SCCmec), plays an important role in staphylococci pathogenesis...
October 2017: Malaysian Journal of Medical Sciences: MJMS
Saima Ali, Muhammad Rashid Khan, Irfanullah, Moniba Sajid, Zartash Zahra
BACKGROUND: Parrotiopsis jacquemontiana (Decne) Rehder. is locally used for skin infections and in wound healing. In this study we have evaluated methanol extract of its leaves and derived fractions against the clinical multi-drug resistant bacterial strains. METHODS: P. jacquemontiana leaves powder extracted with 95% methanol (PJM) and fractionated in escalating polarity of solvents; n-hexane (PJH), chloroform (PJC), ethyl acetate (PJE), n-butanol (PJB) and the remaining as aqueous fraction (PJA)...
January 31, 2018: BMC Complementary and Alternative Medicine
Sujeesh Sebastian, Rajesh Malhotra, Vishnubhatla Sreenivas, Arti Kapil, Rama Chaudhry, Benu Dhawan
INTRODUCTION: Accurate and prompt microbiological diagnosis of prosthetic joint infection (PJI) is crucial for successful antimicrobial treatment. Studies have shown the diagnostic utility of sonication of explanted implants in total joint arthroplasty but all did not use consensus statements for defining PJI. We evaluated the diagnostic utility of culture of samples obtained by sonication of explanted implants compared with periprosthetic tissue cultures (PTC) for the diagnosis of PJI using Musculoskeletal Infection Society (MSIS) consensus criteria...
January 27, 2018: Journal of Microbiological Methods
Bianka Sobolewska, Michael Buhl, Jan Liese, Focke Ziemssen
PURPOSE: The aim of the study was to evaluate the bacterial contamination level of contact surfaces on slit lamps and the grip areas of lenses. METHODS: Within unannounced audits, two regions of the slit lamps (headrest and joystick), indirect ophthalmoscopy devices, and ultrasound probes were obtained with rayon-tipped swab. Non-contact lenses used for indirect fundoscopy were pressed on RODAC (Replicate Organism Detection and Counting) plates. One hundred and eighty-one surfaces were sampled...
January 30, 2018: Eye
Francisco Arnaiz de Las Revillas, Marta Fernadez-Sampedro, Ana María Arnaiz-García, Manuel Gutierrez-Cuadra, Carlos Armiñanzas, Ivana Pulitani, Alejandro Ponton, Valentin Tascon, Ivan García, María Carmen Fariñas
BACKGROUND: Daptomycin is a bactericidal antibiotic approved for the treatment of skin and soft tissue infections and right-side endocarditis. However, there is a lack of published data outlining its usefulness in vascular graft infections (VGI). The aim of this study was to describe the clinical experience of the use of daptomycin in the treatment of VGI by Gram-positive bacteria. METHODS: This was a retrospective cohort study of patients diagnosed with VGI receiving daptomycin in a tertiary health care hospital from January 2010 to December 2012...
January 23, 2018: International Journal of Infectious Diseases: IJID
Kotaro Yamakado
PURPOSE: To examine the contamination rate of the anchor-suture and to determine the efficacy of 2 different surgical skin preparation solutions with or without a plastic adhesive drape from suture contamination in arthroscopic rotator cuff repair. METHODS: A prospective randomized study was undertaken to evaluate 126 consecutive patients undergoing arthroscopic rotator cuff repair. Each shoulder was prepared with one of 2 randomly selected solutions according to an assigned envelope that indicated the procedure to be used: chlorhexidine-alcohol (1% chlorhexidine gluconate and 70% isopropyl alcohol) or povidone-iodine...
January 17, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
Eric G Romanowski, Nicholas A Stella, Kathleen A Yates, Kimberly M Brothers, Regis P Kowalski, Robert M Q Shanks
OBJECTIVES: The purpose of this study was to determine whether a commercial formulation of hypochlorous acid hygiene solution (0.01%), Avenova, can destroy existing biofilms formed by ocular clinical bacterial isolates, including blepharitis isolates of Staphylococcus aureus and coagulase-negative staphylococci, and a keratitis isolate of Pseudomonas aeruginosa. METHODS: Biofilms grown in bacterial growth media on disposable contact lens cases were challenged with hypochlorous acid hygiene solution...
January 15, 2018: Eye & Contact Lens
Pablo S Corona, Matias Vicente, Mireia Lalanza, Carles Amat, Luis Carrera
BACKGROUND: Bone loss is a common problem in periprosthetic joint infection (PJI) scenarios. Modular megaprosthesis (MP) could offer a limb salvage solution in such situations. Concerns about risk of infection relapse, reinfection and implant longevity exist regarding MP use in cases of chronic PJI, rather than standard implants. We therefore sought to analyze our results with MP use in chronic PJI cases. METHODS: We performed a retrospective analysis of 29 MP patients...
January 24, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
M Lasagno, M Ortiz, C Vissio, R Yaciuk, C Bonetto, M Pellegrino, C Bogni, L Odierno, C Raspanti
Coagulase-negative staphylococci (CNS) are the most frequently isolated bacteria in cases of subclinical mastitis in dairy cows. CNS species may differ in their pathogenicity, but very little is known about their virulence factors or their immune response in intramammary infections. To our knowledge, no experimental studies into the mastitis pathogenesis caused by CNS have been described in lactating goats. The aim of this study was to induce an experimentally Staphylococcus chromogenes mastitis in lactating goats aimed at verifying if the model can be used to evaluate the inflammatory response, the dynamics of infection and the pathological findings within the first hours of intramammary inoculation...
January 19, 2018: Microbial Pathogenesis
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"