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Streptococcus group a bacteremia

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https://www.readbyqxmd.com/read/28925912/epidemiologic-features-of-invasive-group-a-streptococcus-infection-in-a-rural-hospital-6-year-retrospective-report-and-literature-review
#1
Kassandra Loewen, Natalie Bocking, Cai-Lei Matsumoto, Mike Kirlew, Len Kelly
INTRODUCTION: High rates of invasive group A Streptococcus disease were suspected by clinicians in northwestern Ontario. Patients with sepsis were being encountered with bacteremia positive for group A Streptococcus. This study was designed to assess the incidence of invasive group A Streptococcus infection in the region and provide best-practice treatment information. METHODS: We performed a retrospective chart review at the Sioux Lookout Meno Ya Win Health Centre (SLMHC) from 2009 to 2014 to examine rates of infection due to invasive group A Streptococcus and outcomes...
2017: Canadian Journal of Rural Medicine
https://www.readbyqxmd.com/read/28917068/group-a-streptococcal-bacteraemia-experience-at-king-fahad-medical-city-in-riyadh-saudi-arabia
#2
Fawzyh J Al-Khadidi, Mohammed A AlSheheri, Tariq S AlFawaz, Mushira A Enani, Abdulaziz A AlAqeel, Dayel A AlShahrani
To identify clinical presentation, predisposing factors, and the outcome in patients with Group A Streptococcal bacteremia. Methods: This is a retrospective study of 33 pediatric and adult patients with Streptococcus pyogenes bacteremia, admitted at King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia from 2007 to 2015. Results: Thirty-three patient records, documenting bacteremia with group A beta-hemolytic streptococcus, were reviewed. Approximately 51.5% were pediatric and 48.5% were adult patients, with a male to female ratio of 2:1...
October 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28882472/overwhelming-streptococcus-pyogenes-sepsis-in-an-elderly-patient-with-septic-arthritis
#3
Aarti Chadha, Wafaa Jamal, Abdul Raouf Abdul Aziz, Vincent O Rotimi
INTRODUCTION: The signs of Streptococcus pyogenes, group A streptococci (GAS) bacteremia are non-specific and patients can have wide presentations ranging from flu-like symptoms to life-threatening toxic-shock syndrome in just a few hours. CASE PRESENTATION: We report a case of fulminant S. pyogenes sepsis in an elderly woman with septic arthritis and remarkable past medical history/risk factors. She was febrile, hypotensive and had a swollen and tender right knee...
September 4, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28808157/cytosolic-phospholipase-a2%C3%AE-promotes-pulmonary-inflammation-and-systemic-disease-during-streptococcus-pneumoniae-infection
#4
Rudra Bhowmick, Stacie Clark, Joseph V Bonventre, John M Leong, Beth A McCormick
Pulmonary infection by Streptococcus pneumoniae is characterized by a robust alveolar infiltration of neutrophils (polymorphonuclear cells or PMNs) that can promote systemic spread of the infection if not resolved. We previously showed that 12-lipoxygenase (12-LOX), which is required to generate the PMN chemoattractant hepoxilin A3 (HXA3) from arachidonic acid (AA), promotes acute pulmonary inflammation and systemic infection after lung challenge with S. pneumoniae As phospholipase A2 (PLA2) promotes the release of AA, we investigated the role of PLA2 in local and systemic disease during S...
August 14, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28711431/highly-prevalent-emmstg840-0-and-emmstc839-0-types-of-erythromycin-non-susceptible-group-g-streptococcus-isolated-from-bacteremia-in-southern-taiwan
#5
Po-Xing Zheng, Yuen-Chi Chan, Chien-Shun Chiou, Cheng-Lu Hsieh, Chuan Chiang-Ni, Jiunn-Jong Wu
BACKGROUND/PURPOSE: Group G Streptococcus (GGS) infections in human have increased. Treatment relied on antibiotic therapy, including erythromycin. However, information regarding the dominant strains and erythromycin susceptibility in GGS bacteremia is limited. METHODS: A total of 134 GGS were isolated from patients with bacteremia in a university hospital of southern Taiwan during 1993-2010. The erythromycin susceptibility was determined by disc diffusion and agar dilution assays...
July 6, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28705427/invasive-disease-by-streptococcus-pyogenes-patients-hospitalized-for-6-years
#6
Vanessa Arias-Constantí, Victoria Trenchs-Sainz de la Maza, Nuria Elvira Sanz-Marcos, Carmina Guitart-Pardellans, Amadeu Gené-Giralt, Carles Luaces-Cubells
INTRODUCTION AND OBJECTIVE: The last years an increase of severe cases of invasive disease (ID) due to Streptococcus pyogenes or streptococcus b-hemolytic group A (SGA) had been detected. The aim of this study was to analyze the epidemiology and the clinical features of ID due to SGA in a tertiary Pediatric Hospital. MATERIAL AND METHODS: Retrospective study in a Pediatric hospital, of all in-patients with final diagnosis of ID due to SGA during 6 years (2009-2014)...
July 10, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28683091/endothelial-cells-are-intrinsically-defective-in-xenophagy-of-streptococcus-pyogenes
#7
Shiou-Ling Lu, Tsuyoshi Kawabata, Yi-Lin Cheng, Hiroko Omori, Maho Hamasaki, Tatsuya Kusaba, Ryo Iwamoto, Hirokazu Arimoto, Takeshi Noda, Yee-Shin Lin, Tamotsu Yoshimori
Group A Streptococcus (GAS) is deleterious pathogenic bacteria whose interaction with blood vessels leads to life-threatening bacteremia. Although xenophagy, a special form of autophagy, eliminates invading GAS in epithelial cells, we found that GAS could survive and multiply in endothelial cells. Endothelial cells were competent in starvation-induced autophagy, but failed to form double-membrane structures surrounding GAS, an essential step in xenophagy. This deficiency stemmed from reduced recruitment of ubiquitin and several core autophagy proteins in endothelial cells, as demonstrated by the fact that it could be rescued by exogenous coating of GAS with ubiquitin...
July 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28673280/incidence-clinical-features-and-implications-on-outcomes-of-neonatal-late-onset-sepsis-with-concurrent-infectious-focus
#8
I-Hsyuan Wu, Ming-Horng Tsai, Mei-Yin Lai, Lee-Fen Hsu, Ming-Chou Chiang, Reyin Lien, Ren-Huei Fu, Hsuan-Rong Huang, Shih-Ming Chu, Jen-Fu Hsu
BACKGROUND: Neonatal bloodstream infection (BSI) is the most important cause of morbidity and mortality in the neonatal intensive care unit (NICU). Although most neonatal BSIs are primary bacteremia, some are associated with a focus of infection. This distinction is not well characterized. METHODS: All patients with neonatal late-onset sepsis (LOS) between January 2006 and December 2013 were enrolled. LOS was categorized as a BSI with a concurrent focus of infection if LOS occurred before or within 24 h after the diagnosis of a specific infectious entity, and as "primary bacteremia" if no concurrent focus of infection was identified...
July 3, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28656020/group-a-streptococcal-bacteremia-following-streptococcal-pharyngitis-in-an-older-patient-with-diabetes-a-case-report%C3%A2-%C3%A2-%C3%A2
#9
Mehida Alexandre, Ruth Wang'ondu, Leo M Cooney
Group A streptococcus (GAS) is responsible for a wide range of both invasive and noninvasive infections. Severe invasive group A streptococcal infection is associated with morbidity and mortality and has been linked to chronic medical conditions with skin and soft tissues involvement, and intravenous drug use (IVDU). Invasive diseases are, however, rare and have been recognized to affect the extremes of age (younger than 10 years of age and older than 74). We report a case of Group A streptococcus bacteremia following pharyngitis in a 76-year-old diabetic male with no history of IVDU...
June 2017: Yale Journal of Biology and Medicine
https://www.readbyqxmd.com/read/28634536/telavancin-a-novel-semisynthetic-lipoglycopeptide-agent-to-counter-the-challenge-of-resistant-gram-positive-pathogens
#10
REVIEW
Biswadeep Das, Chayna Sarkar, Debasmita Das, Amit Gupta, Arnav Kalra, Shubham Sahni
Telavancin (TD-6424), a semisynthetic lipoglycopeptide vancomycin-derivative, is a novel antimicrobial agent developed by Theravance for overcoming resistant Gram-positive bacterial infections, specifically methicillin-resistant Staphylococcus aureus (MRSA). The US Food and Drug Administration (USFDA) had approved telavancin in 2009 for the treatment of complicated skin and skin structure infections (cSSSIs) caused by Gram-positive bacteria, including MRSA (S. aureus, Streptococcus agalactiae, Streptococcus pyogenes, Streptococcus anginosus group, or Enterococcus faecalis)...
March 2017: Therapeutic Advances in Infectious Disease
https://www.readbyqxmd.com/read/28628457/clonal-clusters-and-virulence-factors-of-group-c-and-g-streptococcus-causing-severe-infections-manitoba-canada-2012-2014
#11
Sylvain A Lother, Walter Demczuk, Irene Martin, Michael Mulvey, Brenden Dufault, Philippe Lagacé-Wiens, Yoav Keynan
The incidence of group C and G Streptococcus (GCGS) bacteremia, which is associated with severe disease and death, is increasing. We characterized clinical features, outcomes, and genetic determinants of GCGS bacteremia for 89 patients in Winnipeg, Manitoba, Canada, who had GCGS bacteremia during 2012-2014. Of the 89 patients, 51% had bacteremia from skin and soft tissue, 70% had severe disease features, and 20% died. Whole-genome sequencing analysis was performed on isolates derived from 89 blood samples and 33 respiratory sample controls: 5 closely related genetic lineages were identified as being more likely to cause invasive disease than non-clade isolates (83% vs...
July 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28557739/epidemiology-of-cerebrospinal-fluid-cultures-and-time-to-detection-in-term-infants
#12
MULTICENTER STUDY
Rianna Leazer, Natasha Erickson, James Paulson, Ronen Zipkin, Monica Stemmle, Alan R Schroeder, Michael Bendel-Stenzel, Bryan R Fine
BACKGROUND: Although meningitis is rare in previously healthy term infants, lumbar puncture is often performed to evaluate for source of illness. This study was performed to determine the time to detection for positive cerebrospinal fluid (CSF) cultures and to provide an update on the current epidemiology of bacterial meningitis in term infants. METHODS: This study was a multicenter, retrospective review of positive CSF cultures in infants ≤90 days of age. Specimens were drawn in the emergency department or inpatient setting between January 2000 and December 2013...
May 2017: Pediatrics
https://www.readbyqxmd.com/read/28553185/acute-hematogenous-osteomyelitis-presenting-as-a-cold-rib-in-a-child
#13
Michael J Annen, Mickaila J Johnston, Joe P Gormley, Eugene Silverman
A "cold" defect or an area of decreased radiotracer deposition is the less common appearance of acute hematogenous osteomyelitis (AHO) on a Tc99 m-methylene disphosphonate (Tc99 m-MDP) bone scan. Group A beta-hemolytic Streptococcus (GABHS) is a significantly less common cause of AHO than Staphylococcus aureus, particularly when the infection involves the pelvis or flat bones such as the ribs. Here, we present a case report of isolated acute "cold" hematogenous osteomyelitis in a rib of a child with GABHS bacteremia that was detected on 99Tc-MDP bone scan, with magnetic resonance imaging correlation, and pathologic confirmation after rib resection...
April 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28262370/species-identification-of-streptococcus-bovis-group-isolates-causing-bacteremia-a-comparison-of-two-maldi-tof-ms-systems
#14
Charlotte N Agergaard, Elisa Knudsen, Rimtas Dargis, Xiaohui C Nielsen, Jens J Christensen, Ulrik S Justesen
This study compared two MALDI-TOF MS systems (Biotyper and VITEK MS) on clinical Streptococcus bovis group isolates (n=66). The VITEK MS gave fewer misidentifications and a higher rate of correct identifications than the Biotyper. Only the identification of S. lutetiensis by the VITEK MS was reliable. Additional optimization of the available system databases is needed.
May 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28260599/peritonsillar-abscess-clinical-aspects-of-microbiology-risk-factors-and-the-association-with-parapharyngeal-abscess
#15
REVIEW
Tejs Ehlers Klug
PTA is a collection of pus located between the tonsillar capsule and the pharyngeal constrictor muscle. It is considered a complication of acute tonsillitis and is the most prevalent deep neck infection (approximately 2000 cases annually in Denmark) and cause of acute admission to Danish ENT departments. Teenagers and young adults are most commonly affected and males may predominate over females. However, no studies of age- and gender-stratified incidence rates have previously been published. Furthermore, smoking may be associated with increased risk of peritonsillar abscess (PTA) development, although the magnitude of the association has not been estimated...
March 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28237623/effect-of-underlying-immune-compromise-on-the-manifestations-and-outcomes-of-group-a-streptococcal-bacteremia
#16
Kathleen A Linder, Leen Alkhouli, Mayur Ramesh, George A Alangaden, Carol A Kauffman, Marisa H Miceli
BACKGROUND: Group A streptococcal bloodstream infection is the most common presentation of invasive group A streptococcal disease. We sought to determine the impact of immunosuppression on severity of disease and clinical outcomes. METHODS: This retrospective review of 148 patients with at least one positive blood culture for Streptococcus pyogenes from 1/2003 to 3/2013 compared immunocompromised patients with those with no immunocompromise in regards to development of severe complications and mortality...
May 2017: Journal of Infection
https://www.readbyqxmd.com/read/28236516/colorectal-neoplasm-in-cases-of-clostridium-septicum-and-streptococcus-gallolyticus-subsp-gallolyticus-bacteraemia
#17
Juan Corredoira, Imma Grau, José F Garcia-Rodriguez, María Jose García-País, Ramón Rabuñal, Carmen Ardanuy, Fernando García-Garrote, Amparo Coira, Maria Pilar Alonso, Annemarie Boleij, Roman Pallares
BACKGROUND: Bacteremia with Clostridium septicum (CS) and Streptococcus gallolyticus subsp. gallolyticus (SGG) have both been associated with colorectal neoplasms (CRN) and colonoscopic examination is advised, however the differences and similarities in colorectal findings are not well known. METHODS: This is a multicenter, comparative study of patients with CS bacteremia [44 of 664 cases (6.6%) of Clostridium spp.] and SGG bacteremia [257 of 596 cases (44.2%) of S...
June 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28192236/diagnosis-of-primary-antibody-and-complement-deficiencies-in-young-adults-after-a-first-invasive-bacterial-infection
#18
S Sanges, F Wallet, N Blondiaux, D Theis, I Vérin, A Vachée, R Dessein, K Faure, N Viget, E Senneville, O Leroy, F Maury, N Just, J Poissy, D Mathieu, A Prévotat, C Chenivesse, A Scherpereel, G Smith, B Lopez, J Rosain, V Frémeaux-Bacchi, E Hachulla, P-Y Hatron, M Bahuaud, F Batteux, D Launay, M Labalette, G Lefèvre
OBJECTIVES: Screening for primary immunodeficiencies (PIDs) in adults is recommended after two severe bacterial infections. We aimed to evaluate if screening should be performed after the first invasive infection in young adults. METHODS: Eligible patients were retrospectively identified using hospital discharge and bacteriology databases in three centres during a 3-year period. Eighteen to 40-year-old patients were included if they had experienced an invasive infection with encapsulated bacteria commonly encountered in PIDs (Streptococcus pneumoniae (SP), Neisseria meningitidis (NM), Neisseria gonorrhoeae (NG), Haemophilus influenzae (HI), or group A Streptococcus (GAS))...
August 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28121169/development-of-a-dna-aptamer-that-binds-specifically-to-group-a-streptococcus-serotype-m3
#19
Hanif Alfavian, Seyed Latif Mousavi Gargari, Samaneh Rasoulinejad, Arvin Medhat
Group A streptococcus (GAS) is an important Gram-positive pathogen that causes various human diseases ranging from peripheral lesions to invasive infections. The M protein is one of the main virulence factors present on the cell surface and is associated with invasive GAS infections. Compared with other M types, serotype M3 has a predominant role in lethal infections and demonstrates epidemic behaviors, including streptococcal toxic shock syndrome, bacteremia, and necrotizing fasciitis. Traditional methods for M typing are time-consuming, tedious, contradictory, and generally restricted to reference laboratories...
February 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28100999/colorectal-cancer-associated-with-streptococcus-anginosus-bacteremia-and-liver-abscesses
#20
Umair Masood, Anuj Sharma, Dhruv Lowe, Rashad Khan, Divey Manocha
Streptococcus anginosus is part of the normal flora of the human gastrointestinal tract. Their ability to cause abscesses is very unique and sets them apart from the rest of the streptococci groups. While an association of group D streptococcus bacteremia and endocarditis with colorectal carcinoma is well established, S. anginosus infections are rarely implicated with colonic malignancy. We present a case of a 62-year-old male who presented to the hospital with fatigue and generalized abdominal pain. Computed tomography of the abdomen revealed multiple liver abscesses and rectal thickening...
September 2016: Case Reports in Gastroenterology
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