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https://www.readbyqxmd.com/read/28652669/early-postoperative-paravalvular-leak-among-egyptian-population-an-observational-study
#1
Noha Hassanin, Yasser Sharaf, Waleed Ammar, Amr Y H Sayed
OBJECTIVES: Several reports described the incidence of postoperative paravalvular leakage (PVL) early after valve replacement surgery, however, there is a paucity of data regarding the outcomes and complications correlated to the severity of PVL. The aim of the current study was to evaluate the incidence, causes, and short term outcome of early postoperative PVL. METHODS: Data were collected from patients presenting to the cardiovascular department at Cairo University Hospital for aortic and/or mitral valve replacement surgery from May 2014 to May 2015...
July 2017: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/28651336/safety-and-efficacy-of-a-repositionable-and-fully-retrievable-aortic-valve-used-in-routine-clinical-practice-the-respond-study
#2
Volkmar Falk, Jochen Wöhrle, David Hildick-Smith, Sabine Bleiziffer, Daniel J Blackman, Mohamed Abdel-Wahab, Ulrich Gerckens, Axel Linke, Hüseyin Ince, Peter Wenaweser, Dominic J Allocco, Keith D Dawkins, Nicolas M Van Mieghem
Aims: RESPOND is a prospective, open-label, single-arm study evaluating the outcomes following transcatheter aortic valve implantation (TAVI) with the repositionable and fully retrievable Lotus Valve used in routine clinical practice for the treatment of patients with aortic valve stenosis. Methods and results: RESPOND enrolled 1014 patients at sites across Europe, New Zealand, and Latin America; 996 patients received a Lotus Valve (mean age: 80.8 years; 50.8% female; Society of Thoracic Surgeons score: 6...
June 22, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28642157/genome-comparisons-of-two-taiwanese-community-associated-methicillin-resistant-staphylococcus-aureus-st59-clones-support-the-multi-origin-theory-of-ca-mrsa
#3
Ye Feng, Hsiu-Ling Chen, Chih-Jung Chen, Chyi-Liang Chen, Cheng-Hsun Chiu
Sequence type (ST) 59 is an epidemic lineage of community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) in Asia. Two ST59 clones are prevalent in Taiwan: the Taiwan clone (TW) causes severe infections, whereas the Asian-Pacific clone (AP) is usually commensal. In this study, we sequenced the genome and transcriptome of the representative strains of these two clones and found their differences to focus on three mobile genetic elements: TW carries SCCmec Type VT, Panton-Valentine leucocidin (PVL)-encoding prophage ΦSa2, whereas AP carries SCCmec Type IV and staphylokinase (SAK)-encoding prophage ΦSa3...
June 19, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28640870/dominance-of-community-associated-methicillin-resistant-staphylococcus-aureus-clones-in-a-maternity-hospital
#4
Edet E Udo, Noura Al-Sweih
BACKGROUND: Methicillin- resistant Staphylococcus aureus (MRSA) is a major pathogen causing healthcare- and community- acquired infections. The purpose of this study was to characterize MRSA isolated at the Maternity Hospital between 2006 and 2011 for their genetic relatedness. MATERIALS AND METHODS: The MRSA isolates were investigated using a combination of antibiogram, Staphylococcal chromosome cassette mec (SCCmec) and spa typing to determine their relatedness to MRSA isolated in other Kuwait hospitals...
2017: PloS One
https://www.readbyqxmd.com/read/28640498/management-of-proliferative-verrucous-leukoplakia-justification-for-a-conservative-approach
#5
Scott C Borgna, Peter T Clarke, Andrew G Schache, Derek Lowe, Michael W Ho, Caroline E McCarthy, Stephen Adair, E Anne Field, John K Field, Deborah Holt, Janet M Risk, Bijay P Rajlawat, Asterios Triantafyllou, Richard J Shaw
BACKGROUND: Proliferative verrucous leukoplakia (PVL) is a progressive, multifocal, exophytic form of leukoplakia with high rates of malignant transformation. The purpose of this study was to evaluate a cohort of patients with PVL in a single tertiary referral clinic. METHOD: Cases meeting accepted diagnostic criteria were reviewed with regard to their pathology, demographic characteristics, management, and outcomes. Human papillomavirus (HPV) testing was undertaken on a subset...
June 22, 2017: Head & Neck
https://www.readbyqxmd.com/read/28640476/histogram-analyses-of-diffusion-kurtosis-indices-and-apparent-diffusion-coefficient-in-assessing-liver-regeneration-after-alpps-and-a-comparative-study-with-portal-vein-ligation
#6
Ruo-Fan Sheng, He-Qing Wang, Kai-Pu Jin, Li Yang, Hao Liu, Yuan Ji, Cai-Xia Fu, Meng-Su Zeng
PURPOSE: To investigate the value of diffusion kurtosis imaging (DKI) histogram analysis in assessing liver regeneration and the microstructure basis after associating liver partition and portal vein ligation for staged hepatectomy (ALPPS), in comparison with portal vein ligation (PVL). MATERIALS AND METHODS: Thirty rats were divided into the ALPPS, PVL, and control groups. Histograms of DKI using a 3T magnetic resonance imaging (MRI) scanner were performed for corrected apparent diffusion (D), kurtosis (K), and apparent diffusion coefficient (ADC)...
June 22, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28640000/panton-valentine-leukocidin-producing-staphylococcus-aureus-facial-pyomyositis-causing-partial-cavernous-sinus-thrombosis
#7
Katherine Green, Ioanna Chranioti, Saurabh Singh, Hans Rolf Jäger, Anje Drebes, Susie Gabbie, Jonathan Cohen
We present a case of sub-total cavernous sinus thrombosis secondary to Panton-Valentine leucocidin-associated Staphylococcus aureus pyomyositis of the muscles of mastication in a previously healthy child, who was successfully managed with no residual disease. He was found to have a factor V Leiden heterozygous mutation. We highlight the propensity of PVL-SA to induce venous thrombosis at any site, but with potential for more severe consequences in the head. We highlight pyomyositis as a differential for peri-orbital cellulitis, and discuss the significance of the factor V Leiden mutation...
June 20, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28636872/long-term-postnatal-steroid-effect-in-very-low-birth-weight-infants
#8
YoungAh Youn, Cheong-Jun Moon, In Kyung Sung
We examined whether hydrocortisone exposure ≤ 1week in very low birth weight infants (VLBWI) was associated with poor neurodevelopmental outcomes at corrected 18 months. Further, the clinical factors associated with worse long term outcome were also evaluated. Of a total of 191 VLBWI, the clinical data for these infants relating were retrospectively collected for analysis. Among the 191 VLBWI, 115 (60.2%) infants were exposed to early postnatal hydrocortisone ≤ 1 week of life in our NICU of Seoul St. Mary's Hospital, The Catholic University of Korea between December 2012 and December 2014...
June 18, 2017: Steroids
https://www.readbyqxmd.com/read/28610560/prevalence-and-molecular-characteristics-of-staphylococcus-aureus-including-methicillin-resistant-strains-isolated-from-bulk-can-milk-and-raw-milk-products-in-pastoral-communities-of-south-west-uganda
#9
Benon B Asiimwe, Rossella Baldan, Alberto Trovato, Daniela M Cirillo
BACKGROUND: Staphylococcus aureus strains are now regarded as zoonotic agents. In pastoral settings where human-animal interaction is intimate, multi-drug resistant microorganisms have become an emerging zoonotic issue of public health concern. The study of S. aureus prevalence, antimicrobial resistance and clonal lineages in humans, animals and food in African settings has great relevance, taking into consideration the high diversity of ethnicities, cultures and food habits that determine the lifestyle of the people...
June 13, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28600770/real-time-pcr-to-identify-staphylococci-and-assay-for-virulence-from-blood
#10
Charles E Okolie
The genus Staphylococcus includes pathogenic and non-pathogenic facultative anaerobes. Due to the plethora of virulence factors encoded in its genome, the species Staphylococcus aureus is known to be the most pathogenic. S. aureus strains harboring genes encoding virulence and antibiotic resistance are of public health importance. In clinical samples, however, pathogenic S. aureus is often mixed with putatively less pathogenic coagulase-negative staphylococci (CoNS), both of which can harbor mecA, the genetic driver for staphylococcal methicillin-resistance...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28592549/emergence-of-a-staphylococcus-aureus-clone-resistant-to-mupirocin-and-fusidic-acid-carrying-exotoxin-genes-and-causing-mainly-skin-infections
#11
Anastassios Doudoulakakis, Iris Spiliopoulou, Nikolaos Spyridis, Nikolaos Giormezis, John Kopsidas, Maria Militsopoulou, Evangelia Lebessi, Maria Tsolia
Objectives: Skin and soft tissue infections (SSTIs) caused by mupirocin-resistant Staphylococcus aureus strains have recently increased in our settings. We sought to evaluate the characteristics of these cases over a 43-month period.Methods: All community-acquired staphylococcal infections caused by mupirocin-resistant strains were retrospectively reviewed. Genes encoding high level (HLR) mupirocin resistance (mupA), fusidic acid resistance (fusB), ermA, ermC, PVL (lukS/lukF-PV), exfoliative toxins (eta, etb), fibronectin binding protein A (fnbA) were investigated in 102 preserved selected strains by PCRs...
June 7, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28592231/high-burden-of-complicated-skin-and-soft-tissue-infections-in-the-indigenous-population-of-central-australia-due-to-dominant-panton-valentine-leucocidin-clones-st93-mrsa-and-cc121-mssa
#12
Susan A J Harch, Eleanor MacMorran, Steven Y C Tong, Deborah C Holt, Judith Wilson, Eugene Athan, Saliya Hewagama
BACKGROUND: Superficial skin and soft tissue infections (SSTIs) are common among the Indigenous population of the desert regions of Central Australia. However, the overall burden of disease and molecular epidemiology of Staphylococcus aureus complicated SSTIs has yet to be described in this unique population. METHODS: Alice Springs Hospital (ASH) admission data was interrogated to establish the population incidence of SSTIs. A prospective observational study was conducted on a subset of S...
June 7, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28590235/chlorhexidine-whole-body-washing-of-patients-reduces-methicillin-resistant-staphylococcus-aureus-and-has-a-direct-effect-on-the-distribution-of-the-st5-mrsa-ii-new-york-japan-clone
#13
Maria Elena Velázquez-Meza, Soraya Mendoza-Olazarán, Gabriela Echániz-Aviles, Adrián Camacho-Ortiz, Michel Fernando Martínez-Reséndez, Vanessa Valero-Moreno, Elvira Garza-González
PURPOSE: Methicillin-resistant Staphylococcus aureus (MRSA) colonizes the skin of hospitalized patients and is associated with high morbidity and mortality. To prevent colonization and infection by S. aureus, better disinfection practices are required. Therefore, we evaluated the effect of chlorhexidine whole-body washing on hospital-acquired S. aureus infections among intensive care unit (ICU) patients in a tertiary hospital in Mexico. METHODOLOGY: The study was conducted over 18 months to evaluate the effect of 2 % chlorhexidine gluconate (CXG) whole-body washing of ICU adult patients on chlorhexidine and antibiotic resistance, biofilm production and clonal distribution of S...
June 8, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28587312/molecular-typing-of-staphylococcus-aureus-isolated-from-patients-with-autosomal-dominant-hyper-ige-syndrome
#14
Inka Sastalla, Kelli W Williams, Erik D Anderson, Ian A Myles, Jensen D Reckhow, Marlene Espinoza-Moraga, Alexandra F Freeman, Sandip K Datta
Autosomal dominant hyper IgE syndrome (AD-HIES) is a primary immunodeficiency caused by a loss-of-function mutation in the Signal Transducer and Activator of Transcription 3 (STAT3). This immune disorder is clinically characterized by increased susceptibility to cutaneous and sinopulmonary infections, in particular with Candida and Staphylococcus aureus. It has recently been recognized that the skin microbiome of patients with AD-HIES is altered with an overrepresentation of certain Gram-negative bacteria and Gram-positive staphylococci...
June 6, 2017: Pathogens
https://www.readbyqxmd.com/read/28579016/executive-summary-of-the-gesida-national-aids-plan-consensus-document-on-antiretroviral-therapy-in-adults-infected-by-the-human-immunodeficiency-virus-updated-january-2017
#15
(no author information available yet)
Antiretroviral therapy (ART) is recommended for all patients infected by HIV-1. The objective of ART is to achieve an undetectable plasma viral load (PVL). Initial ART should be based on a combination of 3 drugs, including 2 nucleoside reverse transcriptase inhibitors (tenofovir in either of its two formulations plus emtricitabine or abacavir plus lamivudine) and another drug from a different family. Four of the recommended regimens, all of which have an integrase inhibitor as the third drug (dolutegravir, elvitegravir boosted with cobicistat or raltegravir), are considered preferential, whereas a further 3 regimens (based on elvitegravir/cobicistat, rilpivirine, or darunavir boosted with cobicistat or ritonavir) are considered alternatives...
May 31, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28575438/molecular-characterization-of-staphylococcus-aureus-isolates-from-children-with-periorbital-or-orbital-cellulitis
#16
Catherine E Foster, Elizabeth Yarotsky, Edward O Mason, Sheldon L Kaplan, Kristina G Hulten
Background.: Periorbital and orbital cellulitis cause significant pediatric morbidity. Here, we define the clinical features of and characterize isolates from children with periorbital or orbital cellulitis caused by Staphylococcus aureus at Texas Children's Hospital in Houston. Methods.: Patients were identified from a prospective S aureus study database from January 2002 to July 2015. Demographic and clinical data were collected retrospectively. Isolates were genotyped by pulsed-field gel electrophoresis, and Panton-Valentine leukocidin (lukSF-PV [pvl]) genes were detected by quantitative polymerase chain reaction...
June 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28555592/repositionable-percutaneous-aortic-valve-implantation-with-the-lotus-valve-30-day-and-1-year-outcomes-in-250-high-risk-surgical-patients
#17
Ian T Meredith, Nicolas Dumonteil, Daniel J Blackman, Didier Tchétché, Darren L Walters, David Hildick-Smith, Ganesh Manoharan, Jan Harnek, Stephen G Worthley, Gilles Rioufol, Thierry Lefèvre, Thomas Modine, Nicolas M Van Mieghem, Ted Feldman, Dominic J Allocco, Keith D Dawkins
AIMS: The REPRISE IIE trial evaluated outcomes following transcatheter aortic valve implantation of the fully repositionable and retrievable Lotus Valve with a unique seal designed to minimize paravalvular leak (PVL). METHODS AND RESULTS: This prospective, multicentre study enrolled 250 patients with severe aortic stenosis considered high-risk for surgery by a multidisciplinary Heart Team. An independent Clinical Events Committee adjudicated events per Valve Academic Research Consortium criteria...
May 30, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28555401/emerging-multidrug-resistant-bengal-bay-clone-st772-mrsa-v-in-norway-molecular-epidemiology-2004-2014
#18
A Blomfeldt, K W Larssen, A Moghen, C Gabrielsen, P Elstrøm, H V Aamot, S B Jørgensen
A multidrug-resistant, methicillin-resistant Staphylococcus aureus (MRSA) clone, PVL-positive ST772-MRSA-V, named the Bengal Bay clone, is emerging worldwide. In Norway, where MRSA prevalence is low, a sudden increase in ST772-MRSA-V initiated a nationwide molecular epidemiological study. Clinical data were obtained from the Norwegian Surveillance System for Communicable Diseases (MSIS). S. aureus isolates were characterised by antibiotic susceptibility profiles and comprehensive genotyping (spa typing, MLVA, DNA microarray)...
May 29, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28553271/molecular-epidemiology-and-antibiotic-resistance-profiles-of-methicillin-resistant-staphylococcus-aureus-strains-in-a-tertiary-hospital-in-china
#19
Haishen Kong, Fei Yu, Weili Zhang, Xuefen Li, Hongxia Wang
Analysis of the genotypic characteristics and antimicrobial susceptibility patterns of methicillin-resistant Staphylococcus aureus (MRSA) is essential for the control and treatment of diseases caused by this important pathogen. In this study, MRSA isolates obtained from a tertiary caret hospital in China were subjected to spa typing, SCCmec typing, multiple locus sequence typing (MLST), and PCR targeting of the genes encoding Panton-Valentine leukocidin (PVL). The disk diffusion method was used to test the antimicrobial susceptibility of the isolates to 10 non-beta-lactam antibiotics...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28552322/prevalence-of-skin-infections-caused-by-panton-valentine-leukocidin-positive-methicillin-resistant-staphylococcus-aureus%C3%A2-in%C3%A2-japan-particularly-in-ishigaki-okinawa
#20
Shunsuke Takadama, Hidemasa Nakaminami, Sae Aoki, Megumi Akashi, Takeaki Wajima, Masami Ikeda, Atsushi Mochida, Fumiko Shimoe, Kumiko Kimura, Yasushi Matsuzaki, Daisuke Sawamura, Yoichi Inaba, Tomohiro Oishi, Osamu Nemoto, Naoko Baba, Norihisa Noguchi
The prevalence of Panton-Valentine leukocidin gene (pvl)-positive community-acquired methicillin-resistant Staphylococcus aureus USA300 clone, which is designated as the ST8-staphylococcal cassette chromosome (SCC) mec type IV (ST8-IV) lineage, is a major public health concern worldwide. Thus, to elucidate the prevalence and characteristics of pvl-positive community-onset MRSA in Japan, we conducted a molecular epidemiological analysis for 854 S. aureus isolates obtained from outpatients with skin infections during 2013 and 2014...
May 25, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
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