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https://www.readbyqxmd.com/read/29773945/predictive-factors-in-the-treatment-of-streptococcal-endophthalmitis
#1
Yosanan Yospaiboon, Kidakarn Meethongkam, Suthasinee Sinawat, Wipada Laovirojjanakul, Tanapat Ratanapakorn, Thuss Sanguansak, Chavakij Bhoomibunchoo
Objective: To evaluate visual outcomes and possible predictive factors in the treatment of infectious endophthalmitis caused by Streptococcus species during 2012-2016 at a large referral eye center in northeastern Thailand. Methods: A retrospective medical record chart review of patients with culture-positive endophthalmitis caused by Streptococcus species was conducted. Demographic data including age, gender, occupation, duration of symptoms, time to surgery, surgical procedures, initial visual acuity at presentation, and final visual acuity after treatment were collected and analyzed...
2018: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29755627/molecular-diagnosis-of-bacterial-definite-infective-endocarditis-by-real-time-polymerase-chain-reaction
#2
Reza Faraji, Mostafa Behjati-Ardakani, Nooshin Faraji, Seyed Mohammad Moshtaghioun, Seyed Mehdi Kalantar, Ali Pedarzadeh, Hengameh Zandi, Mohammadtaghi Sarebanhassanabadi, Nastaran Ahmadi, Ali Dehghani Firoozabadi
Infective endocarditis (IE) can be diagnosed using the Duke criteria, which cannot be conclusive especially when the results of blood cultures are negative. This study aimed at using real-time polymerase chain reaction (PCR) technique to isolate bacteria present in whole blood samples of patients with definitive IE on the basis of the method designed in this study. This laboratory and test study was conducted on 20 whole blood samples taken from patients with definitive IE. Real-time PCR of the 16s rRNA was utilized to directly analyze whole blood samples to diagnose bacterial IE...
April 2018: Cardiology Research
https://www.readbyqxmd.com/read/29753513/high-incidence-of-late-infective-endocarditis-in-bovine-jugular-vein-valved-conduits
#3
Ziv Beckerman, Luis E De León, Rodrigo Zea-Vera, Carlos M Mery, Charles D Fraser
BACKGROUND: Bovine jugular vein (BJV) grafts (Medtronic, Inc, Minneapolis, Minn) are used to restore right ventricle-to-pulmonary artery continuity. Recent studies have associated these grafts with the development of infective endocarditis. The purpose of this study was to report the incidence of endocarditis in BJV grafts. METHODS: All BJV grafts placed in the right ventricle-to-pulmonary artery position between 2001 and 2017 at our institution were included. Freedom from endocarditis was analyzed using the Kaplan-Meier method and parametric survival regression models...
April 13, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29752592/the-rate-of-endophthalmitis-after-pars-plana-vitrectomy-and-its-risk-factors
#4
Seyed Ali Tabatabaei, Mohammad Soleimani, Hadi Vakili, Morteza Naderan, Alireza Lashay, Houshang Faghihi, Mehdi Yaseri
PURPOSE: To study the incidence of endophthalmitis after pars plana vitrectomy, its causative organisms, and visual acuity outcomes. PATIENTS AND METHODS: In this retrospective, comparative study, the medical records of patients with acute-onset postoperative endophthalmitis after pars plana vitrectomy at Farabi Eye Hospital, Tehran, Iran, during a 12-year period between January 2004 and November 2015 were reviewed. To compare the endophthalmitis patients with other cases who underwent pars plana vitrectomy at the same day and also the same operating room, a control group was developed by gathering the data from surgical records...
May 11, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29737105/-analysis-of-pathogens-and-clinical-characteristics-in-157-cases-with-infective-endocarditis
#5
Fei-Fei Zhao, Yang Lu, Hui Ye, Ce-Jun Zhong, Liang Huang, Xiao-Ju Lü
OBJECTIVE: To analyze the clinical characteristics of infective endocarditis (IE) in culture-positive patients,so as to provide the evidences for reasonable diagnosis and treatment of IE. METHODS: We performed a retrospective study of 157 culture-positive IE cases,which were diagnosed according to modified Duke criteria for IE from Jan. 2008 to Aug. 2015. RESULTS: The average age of 157 cases of IE was 40.85 years. One hundred and one patients (64...
January 2018: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29730811/phlegmonous-gastritis-associated-with-advanced-esophageal-cancer
#6
Nobutoshi Hagiwara, Takeshi Matsutani, Hiroki Umezawa, Munenaga Nakamizo, Kazuhiko Yokoshima, Eriko Shinozuka, Tsutomu Nomura, Eiji Uchida
Phlegmonous gastritis is a rapidly progressive bacterial infection of the stomach wall. It has a high mortality rate and aggressive treatment, either with antibiotics or surgical resection, is required. Here, we report an extremely rare case of phlegmonous gastritis associated with advanced esophageal cancer. A 65-year-old Japanese man was urgently admitted to the hospital due to pyrexia and gastrointestinal symptoms. Abdominal computed tomography revealed widespread diffuse thickening of the gastric wall. On endoscopic examination, an ulcerative mass was detected at the lower thoracic esophagus, and a markedly elevated submucosal lesion was present in the middle of the stomach body...
May 5, 2018: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/29718124/gut-dysbiosis-associated-with-hepatitis-c-virus-infection
#7
Takako Inoue, Jiro Nakayama, Kei Moriya, Hideto Kawaratani, Rie Momoda, Kiyoaki Ito, Etsuko Iio, Shunsuke Nojiri, Kei Fujiwara, Masashi Yoneda, Hitoshi Yoshiji, Yasuhito Tanaka
Background: Little is known about the effect of hepatitis C virus (HCV) infection on gut microbiota and the relationship between alteration of gut microbiota and chronic hepatitis C (CHC) progression. We performed a comparative study of gut microbiota composition between CHC patients and healthy individuals. Methods: Fecal samples from 166 CHC patients were compared with those from 23 healthy individuals; the gut microbiota community was analyzed using 16S ribosomal RNA gene sequencing...
May 1, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29716699/assessment-of-periodontitis-and-its-role-in-viridans-streptococcal-bacteremia-and-infective-endocarditis
#8
Shree Dhotre, Vilas Jahagirdar, Namdev Suryawanshi, Milind Davane, Ramesh Patil, Basavraj Nagoba
OBJECTIVES: To evaluate the role of periodontitis in viridans group streptococci (VGS) bacteremia and infective endocarditis (IE). METHODS: A total of 200 subjects including two groups. Group A- 34 subjects undergoing tooth extraction with periodontitis, 46 subjects undergoing tooth extraction without periodontitis and 40 healthy controls. Group B: 40 confirmed cases of IE (17 with and 23 without periodontitis) and 40 healthy controls. Subgingival plaque and blood samples were obtained and processed by standard procedures...
March 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29695061/use-of-leukocyte-platelet-l-prf-rich-fibrin-in-diabetic-foot-ulcer-with-osteomyelitis-three-clinical-cases-report
#9
Alessandro Crisci, Giuseppe Marotta, Anna Licito, Edda Serra, Giulio Benincasa, Michela Crisci
In this study, the use of fibrin rich in leukocytes and platelets (L-PRF) was explored to heal osteomyelitis ulcers in a diabetic foot. The goal was to standardize the utilization of L-PRF in patients with osteomyelitis to direct it for healing. L-PRF was obtained autologously from the peripheral blood of the diabetic patients ( n = 3) having osteomyelitis and skin lesions for at least six months. The L-PRF and supernatant serum were inserted into the skin lesion to the bone after a surgical debridement. The evolution of lesions over time was analyzed...
April 24, 2018: Diseases (Basel)
https://www.readbyqxmd.com/read/29651552/prevention-of-high-level-daptomycin-resistance-emergence-in-vitro-in-streptococcus-mitis-oralis-by-using-combination-antimicrobial-strategies
#10
Brianne Zapata, Danya N Alvarez, Sabrina Farah, Cristina Garcia-de-la-Maria, Jose M Miro, George Sakoulas, Arnold S Bayer, Nagendra N Mishra
Among the viridans group streptococci, S. mitis-oralis strains are frequently resistant to multiple β-lactams and tolerant to vancomycin (VAN). This scenario has led to the proposed clinical use of newer agents, like daptomycin (DAP) for such S. mitis-oralis strains. However, recent recognition of the rapid and durable emergence of high-level DAP-resistance (DAP-R; DAP MICs > 256 µg/ml) induced by DAP exposures in vitro and in vivo has dampened enthusiasm for such approaches. In this study, we evaluated a broad range of DAP combination regimens in vitro for their capacity to prevent emergence of high-level DAP-R in a prototype S...
April 12, 2018: Current Microbiology
https://www.readbyqxmd.com/read/29621616/contaminants-in-blood-cultures-importance-implications-interpretation-and-prevention
#11
REVIEW
Sylvie Dargère, Hélène Cormier, Renaud Verdon
BACKGROUND: Despite the development of new microbiological technologies, blood cultures remain the first line tool for the diagnosis of bloodstream infections. Their diagnostic value may be affected when a microorganism of questionable evidence is isolated, for example, coagulase-negative staphylococci, Bacillus spp., viridans group streptococci, Corynebacterium spp., Propionibacterium spp., and Micrococcus spp. Finally, making a correct diagnosis of pathogenicity (vs contamination) is very challenging...
April 2, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29617499/mortality-predictors-in-the-surgical-treatment-of-active-infective-endocarditis
#12
Jenny Lourdes Rivas de Oliveira, Magaly Arrais Dos Santos, Renato Tambellini Arnoni, Auristela Ramos, Dorival Della Togna, Samira Kaissar Ghorayeb, Roberto Tadeu Magro Kroll, Luiz Carlos Bento de Souza
INTRODUCTION: Active infective endocarditis is associated with high morbidity and mortality. Surgery is indicated in high-risk conditions, and the main determinants of mortality in surgical treatment should be evaluated. OBJECTIVE: To identify mortality predictors in the surgical treatment of active infective endocarditis in a long-term follow-up. METHODS: This prospective observational study involved 88 consecutive patients diagnosed with active infective endocarditis, who underwent surgery between January 2005 and December 2015...
January 2018: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29616839/the-cultivable-bacterial-flora-of-the-esophagus-in-subjects-with-esophagitis
#13
Elisabeth Norder Grusell, Gunnar Dahlén, Magnus Ruth, Henrik Bergquist, Mogens Bove
BACKGROUND: The healthy human esophagus is colonized by bacteria similar to that of the oral mucosa. However, little is known about the microbiome of the esophagus in esophagitis or the possible role of bacteria in the inflammatory response. AIM: To survey bacterial diversity and compare the microbiome of the esophagus in subjects with gastro-esophageal reflux disease (GERD) and eosinophilic esophagitis (EoE). MATERIAL AND METHODS: Seventeen subjects diagnosed with GERD and 10 with EoE underwent endoscopic examination with brush sampling and biopsies from the oral cavity, upper and lower esophagus...
April 4, 2018: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/29592995/a-rare-case-of-pyogenic-pericarditis-secondary-to-streptococcus-constellatus
#14
Sehem Ghazala, Todd Rabkin Golden, Sumaya Farran, Tirdad T Zangeneh
We report an extremely rare case of purulent pericarditis caused by the normally commensal oral flora, Streptococcus constellatus, a viridans Streptococcal species and member of the S. anginosus group (previously also known by the eponymous ' S. milleri', for American Willoughby Dayton Miller). This case is a previously healthy 71-year-old immunocompetent woman from Arizona who presented with a 5-day history of progressive shortness of breath and chest tightness, and subjective fever and chills, but without history of nausea, vomiting, night sweats, recent travel, autoimmune disease or sick contacts...
March 28, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29581195/srr-adhesins-mediate-shear-enhanced-streptococcal-binding-to-platelets
#15
Olga Yakovenko, Jamie Nunez, Barbara Bensing, Hai Yu, Jonathan Mount, Jie Zeng, Jasmine Hawkins, Xi Chen, Paul M Sullam, Wendy Thomas
The binding of bacteria to platelets is thought to be a central event in the pathogenesis of infective endocarditis. The serine-rich repeat (SRR) glycoproteins of viridans group streptococci have been shown to mediate platelet binding in vitro and to contribute to virulence in animal models. However, it is not known whether SRR adhesins can mediate streptococcal binding under the high fluidic shear stress conditions present on the endocardial surface. We found that three streptococcal SRR adhesins (GspB, Hsa, and SrpA) with differing structures and sialoglycan binding specificities nevertheless exhibited similar biomechanical properties...
March 26, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29574655/musculoskeletal-infections-caused-by-aerococcus-urinae-a-case-based-review
#16
REVIEW
Martín Greco, Íñigo Rúa-Figueroa, Sabrina Ghiglione, Efrén Santana Medina, Juan Carlos Quevedo Abeledo, Carlos Rodríguez-Lozano
Aerococcus are Gram-positive bacteria that have been historically misidentified using standard techniques. We report a case of a 63-year-old man with septic oligoarthritis caused by Aerococcus urinae (isolated in two ankle synovial fluid cultures and in two blood cultures). Due to the lack of evidence found in a search performed to identify similar cases, a systematic review was conducted with the objective to identify and analyze all documented cases of musculoskeletal infections caused by Aerococcus urinae...
March 25, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29567128/oritavancin-in-vitro-activity-against-gram-positive-organisms-from-european-and-united-states-medical-centers-results-from-the-sentry-antimicrobial-surveillance-program-for-2010-2014
#17
M A Pfaller, H S Sader, R K Flamm, M Castanheira, Rodrigo E Mendes
The in vitro activity of oritavancin was assessed against 44,715 gram-positive pathogens causing infections in European and United States (US) hospitals (2010-2014). There were no substantive differences (>±2-fold dilution) in oritavancin MIC50 or MIC90 values for different species/organism groups over time or by region. Oritavancin (99.9% susceptible) showed modal MIC, MIC50 , and MIC90 results of 0.03, 0.03, and 0.06-0.12 mg/L when tested against Staphylococcus aureus, regardless of methicillin susceptibility, year, or region...
February 3, 2018: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29567126/distribution-of-streptococcal-groups-causing-infective-endocarditis-a-descriptive-study
#18
So Lim Kim, Steven M Gordon, Nabin K Shrestha
The purpose of this study was to describe the distribution of streptococci causing infective endocarditis (IE). A total of 296 patients with definite IE admitted from July 2007 to December 2014 were identified, with microbial identification done by a combination of blood culture, valve culture, and valve polymerase chain reaction (PCR). The overall distribution of streptococci was 76% viridans (n = 224), 17% pyogenic (50), 6% nutritionally variant (17), and 2% anaerobic (5). Sixty-three (21%) viridans group streptococci were not identified further...
February 24, 2018: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29566581/investigation-of-bacteremia-after-debonding-procedures
#19
Yasin Akbulut, Merve Goymen, Yasemin Zer, Ayse Buyuktas Manay
OBJECTIVE: The purpose of this study is to investigate the effect of debonding procedures after completion of orthodontic treatments on bacteremia. MATERIALS AND METHODS: Twenty-eight patients who were treated with fixed orthodontic treatment at the Faculty of Dentistry's Department of Orthodontics at Gaziantep University and who had an indication of debonding were selected for this study, and blood samples were taken from these patients at different times and examined for bacteremia...
March 23, 2018: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/29563488/pyogenic-ventriculitis-and-meningitis-caused-by-streptococcus-acidominimus-in-humans-a-case-report
#20
Gaurang S Shah
BACKGROUND Streptococcus acidominimus, which belongs to the viridans streptococci group, is rarely considered pathogenic in humans. However, over the past 10 years, this bacterium has been reported to cause serious infections in humans, particularly among the critically ill. This article is the first case report of pyogenic ventriculitis (PV) and meningitis caused by S. acidominimus in North America. CASE REPORT A 49-year-old Asian male presented to the emergency department with complaints of a headache, fever greater than 37...
March 22, 2018: American Journal of Case Reports
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