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https://www.readbyqxmd.com/read/27920984/staphylococcus-lugdunensis-endocarditis-with-destruction-of-the-ventricular-septum-and-multiple-native-valves
#1
Celestine Ishiekwene, Monica Ghitan, Margaret Kuhn-Basti, Edward Chapnick, Yu Shia Lin
Staphylococcus lugdunensis (S. lugdunensis) is a coagulase negative staphylococcus (CoNS) that can cause destructive infective endocarditis. S. lugdunensis, unlike other CoNS, should be considered to be a pathogen. We report the first case of S. lugdunensis endocarditis causing ventricular septal defect and destruction of the aortic and mitral valves. A 53-year-old male with morbid obesity and COPD presented with intermittent fever and progressive shortness of breath for 2 weeks. Chest examination showed bilateral basal crepitations, and a grade 2 systolic murmur along the right sternal border...
2017: IDCases
https://www.readbyqxmd.com/read/27920983/bacteremic-renal-stone-associated-urinary-tract-infection-caused-by-nontypable-haemophilus-influenzae-a-rare-invasive-disease-in-an-immunocompetent-patient
#2
Masanao Fujii, Harumi Gomi, Haruhiko Ishioka, Noriko Takamura
Haemophilus species are known to colonize the upper respiratory tract and can cause infections. However Haemophilus influenzae has been rarely described as a cause of genitourinary tract infection. We report a 44-year-old nonimmunocompromised Japanese man with bacteremic pyelonephritis caused by a nontypable H. influenzae associated with a left ureteral calculus. The organism was isolated from both blood and urine cultures. Treatment consisted of 14 days of intravenous ceftriaxone and oral amoxicillin one after than other and insertion of a left ureteral stent...
2017: IDCases
https://www.readbyqxmd.com/read/27920655/deep-vein-thrombosis-as-initial-manifestation-of-whipple-disease
#3
Mônica Souza de Miranda Henriques, Alexandre Rolim da Paz, Ana Beatriz Person Gaertner, Cibelle Ingrid Stephen Melo, Priscyanne Lins Filgueiras, Rafaella Alencar Jerome
INTRODUCTION: Wipple disease (WD) is a rare chronic disease caused by the bacillus Tropheryma whipplei. Constitutive, rheumatologic, gastrointestinal, cardiac, cerebral, lymphatic, cutaneous, and ophthalmological signs are possible systemic symptoms. However, thrombotic manifestations are rarely described as "stroke-like syndrome" or arterial thrombosis. Diagnosis is based on clinical manifestations and pathological examination. Laboratory findings may include anemia, leukocytosis, and thrombocytosis...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27918694/ceftaroline-activity-against-multidrug-resistant-streptococcus-pneumoniae-from-u-s-medical-centers-2014-and-molecular-characterization-of-a-single-ceftaroline-nonsusceptible-isolate
#4
Michael A Pfaller, Rodrigo E Mendes, Robert K Flamm, Ronald N Jones, Helio S Sader
Streptococcus pneumoniae isolates (2,614) were collected from patients at 135 U.S. Medical Centers during 2014. Isolates were evaluated for multidrug resistance to penicillin, ceftriaxone, erythromycin, tetracycline, trimethoprim-sulfamethoxazole, and levofloxacin. A single isolate (853008) demonstrated a ceftaroline nonsusceptible minimal inhibitory concentration (MIC) value, and it was subjected to molecular characterization. Ceftaroline (MIC50/90, ≤0.015/0.12 μg/ml) was eightfold more potent than ceftriaxone (MIC50/90, ≤0...
December 5, 2016: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/27911458/spondylodiscitis-a-rare-complication-following-percutaneous-nephrostomy
#5
Francesco Chiancone, Maurizio Fedelini, Clemente Meccariello, Luigi Pucci, Marco Fabiano, Paolo Fedelini
Spondylodiscitis is an inflammation of the intervertebral disc and the adjacent vertebral bodies. The spondylodiscitis can not only be a complication of medical interventions such as an operation near spinal column but also urogenital and vascular interventions and intravenous catheter use. A 71-year-old man was admitted to our emergency department with fever and severe abdominal pain. Antibiotic therapy had been performed with intravenous administration of 2 g of ceftriaxone and the patient underwent the placement of a percutaneous nephrostomy according to Seldinger technique...
November 28, 2016: Urologia
https://www.readbyqxmd.com/read/27909484/lyme-arrhythmia-in-an-avid-golfer-a-diagnostic-challenge-and-a-therapeutic-dilemma
#6
Ujjwal Rastogi, Dr Nidhi Kumars
Lyme disease is a multisystem disorder affecting dermatologic, cardiac, nervous and musculoskeletal systems. Cardiac manifestations occur in about 5% of Lyme infections and stem from the involvement of the cardiac conduction system, resulting in varying degrees of sino-atrioventricular block. Occasionally, Lyme infection may also present with myopericarditis. Unlike isolated conduction node disease, myocardial involvement presents a great diagnostic and therapeutic dilemma for the physician. We report the case of a 68 year-old male cardiologist who presented with new onset exertional dyspnea and palpitations...
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27904747/comparing-the-disk-diffusion-and-agar-dilution-tests-for-neisseria-gonorrhoeae-antimicrobial-susceptibility-testing
#7
Hsi Liu, Thomas H Taylor, Kevin Pettus, Steve Johnson, John R Papp, David Trees
BACKGROUND: We assessed the validity of testing for antimicrobial susceptibility of clinical and mutant Neisseria gonorrhoeae (GC) isolates by disk diffusion in comparison to agar dilution, and Etest® (bioMerieux, France), respectively, for three third generation extended spectrum cephalosporins (ESC): ceftriaxone (CRO), cefixime (CFX), and cefpodoxime (CPD). METHODS: One hundred and five clinical isolates and ten laboratory-mutants were tested following Clinical Laboratory Standard Institute (CLSI) and manufacturer's standards for each of the three methods...
2016: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/27904124/mycotic-aneurysm-caused-by-bacteroides-fragilis-in-an-elderly-immunosuppressed-patient
#8
Takahiko Fukuchi, Sadao Kawasaki, Hiroki Hayashi, Daisuke Koreeda, Takahiro Ashikawa
An 82-year-old Japanese man, who presented with a fever and abdominal pain, was admitted to our hospital. According to enhanced computed tomography images, the probable diagnosis was abdominal aortic mycotic aneurysm. Eight sets of blood cultures obtained from the patient were negative. Despite administering treatment with vancomycin and ceftriaxone, the aneurysm progressively enlarged. He underwent open debridement surgery and in situ replacement because of an aneurysmal rupture. Bacteroides fragilis was isolated from the tissue culture of the aortic wall...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27903600/improved-accuracy-of-cefepime-susceptibility-testing-for-esbl-producing-enterobacteriaceae-using-an-on-demand-digital-dispensing-method
#9
Kenneth P Smith, Thea Brennan-Krohn, Susan Weir, James E Kirby
Extended-spectrum beta-lactamase (ESBL) producing Enterobacteriaceae generally cannot be treated with penicillins and cephalosporins. However, some later generation cephalosporins, including cefepime, are poorly hydrolyzed by specific ESBL enzymes, and certain strains demonstrate in vitro susceptibility to these agents, potentially affording additional treatment opportunities. Moreover, the ability to adjust both dose and dosing interval of β-lactam agents allows treatment of strains with elevated minimal inhibitory concentrations (MICs) formerly classified in the intermediate range...
November 30, 2016: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/27902675/infected-congenital-epicardial-cyst-presenting-as-acute-abdomen
#10
Timothy Dribin, Matthew D Files, Erin R Rudzinski, Ron Kaplan, Kimberly P Stone
A previously healthy 3-year-old boy presented to the emergency department with abdominal pain, fever, and emesis. Laboratory and radiologic evaluation for causes of acute abdomen were negative; however, review of the abdominal x-ray demonstrated cardiomegaly with the subsequent diagnosis of pericardial cyst by echocardiogram and computed tomography. The patient underwent surgical decompression and attempted removal of the cystic structure revealing that the cyst originated from the epicardium. His abdominal pain and fever resolved postoperatively and he completed a 3-week course of ceftriaxone for treatment of Propionibacterium acnes infected congenital epicardial cyst...
December 2016: Pediatric Emergency Care
https://www.readbyqxmd.com/read/27899142/vancomycin-microspheres-reduce-postoperative-spine-infection-in-an-in-vivo-rabbit-model
#11
Gang Liu, Si Chen, Jun Fang, Baoshan Xu, Shuang Li, Yonghong Hao, Naif A Al-Dhabi, Shucai Deng, Veeramuthu Duraipandiyan
BACKGROUND: Surgical site infections are common and devastating complications after implants related surgeries. Staphylococcus aureus contamination is a leading cause of surgical site infections. This study aims at assessing the effect of vancomycin microspheres on reducing Staphylococcus aureus infection in an in vivo rabbit model. METHODS: Sixty surgical sites of 20 New Zealand White rabbits underwent spinal implant were randomly divided to three groups: the control group, the vancomycin group and vancomycin microspheres group...
November 29, 2016: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27898714/comparable-effectiveness-of-first-week-treatment-with-anti-staphylococcal-penicillin-versus-cephalosporin-in-methicillin-sensitive-staphylococcus-aureus-bacteremia-a-propensity-score-adjusted-retrospective-study
#12
Erik Forsblom, Eeva Ruotsalainen, Asko Järvinen
: The objective was to compare the prognostic impact of first week treatment with anti-staphylococcal penicillin (ASP) versus cephalosporin in methicillin-sensitive Staphylococcus aureus bacteremia (MS-SAB). Altogether 580 patients were retrospectively followed and categorized according to first week treatment; 84% (488) received ASP (cloxacillin) and 16% (92) cephalosporin (cefuroxime or ceftriaxone). SAB management was optimized with formal bedside infectious disease specialist consultation in 88%, deep infection foci diagnosed in 77% and adjunctive rifampicin therapy given to 61% of patients...
2016: PloS One
https://www.readbyqxmd.com/read/27898574/factors-associated-with-primary-care-physician-knowledge-of-the-recommended-regimen-for-treating-gonorrhea
#13
Marta Bornstein, Faruque Ahmed, Roxanne Barrow, Jami Fraze Risley, Sheena Simmons, Kimberly A Workowski
BACKGROUND: The recommended regimen for treating uncomplicated gonorrhea has changed over time, due to the emergence of antimicrobial resistance. We assessed physician knowledge of the recommendation for treating uncomplicated urogenital gonorrhea in adolescents and adults using ceftriaxone and azithromycin dual therapy. METHODS: We analyzed DocStyles 2015 survey data from 1357 primary care physicians practicing for at least 3 years who provided screening, diagnosis, or treatment for sexually transmitted diseases to one or more patients in an average month...
November 28, 2016: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/27892654/injectable-polysaccharide-hydrogels-as-biocompatible-platforms-for-localized-and-sustained-delivery-of-antibiotics-for-preventing-local-infections
#14
Ziyi Li, Chaoliang He, Baoming Yuan, Xiaoming Dong, Xuesi Chen
Biocompatible and antibacterial hydrogels have received increasing attention for preventing local bacterial infections. In this study, a type of polysaccharide hydrogels is prepared via the Schiff-based reaction at physiological conditions. The gelation time and mechanical property of the hydrogels are found to be dependent on the polysaccharide concentration and the polysaccharide weight ratio. 3-(4,5-Dimethyl-thiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay and live/dead assay indicate that the hydrogels display nontoxicity in vitro...
November 28, 2016: Macromolecular Bioscience
https://www.readbyqxmd.com/read/27891499/a-presumptive-case-of-human-rabies-a-rare-survived-case-in-rural-ghana
#15
Paschal Awingura Apanga, John Koku Awoonor-Williams, Michael Acheampong, Matthew Ayamba Adam
Rabies remains endemic in Ghana and continues to pose a major public health threat to humans and animals with a nearly 100% case fatality rate in humans. We report of a presumptive case of human rabies whose survival represents a rare occurrence in rural Ghana and worldwide. Lessons from this case study provide a critically needed focus in helping improve rabies surveillance and case management in Ghana. We report of the survival of a 36-year-old man who developed clinical rabies after he was bitten by his dog, while restraining the dog with a chain...
2016: Frontiers in Public Health
https://www.readbyqxmd.com/read/27891258/lyme-carditis-an-interesting-trip-to-third-degree-heart-block-and-back
#16
Maxwell Eyram Afari, Fady Marmoush, Mobeen Ur Rehman, Umama Gorsi, Joseph F Yammine
Carditis is an uncommon presentation of the early disseminated phase of Lyme disease. We present the case of a young female who presented with erythema migrans and was found to have first-degree heart block which progressed to complete heart block within hours. After receiving ceftriaxone, there was complete resolution of the heart block in sequential fashion. Our case illustrates the importance of early recognition and anticipation of progressive cardiac conduction abnormalities in patients presenting with Lyme disease...
2016: Case Reports in Cardiology
https://www.readbyqxmd.com/read/27891149/corynebacterium-propinquum-a-rare-cause-of-prosthetic-valve-endocarditis
#17
Umair Jangda, Ankit Upadhyay, Farshad Bagheri, Nilesh R Patel, Robert I Mendelson
Nondiphtheria Corynebacterium species are often dismissed as culture contaminants, but they have recently become increasingly recognized as pathologic organisms. We present the case of a 48-year-old male patient on chronic prednisone therapy for rheumatoid arthritis with a history of mitral valve replacement with prosthetic valve. He presented with fever, dizziness, dyspnea on exertion, intermittent chest pain, and palpitations. Transesophageal echocardiography revealed two medium-sized densities along the inner aspect of the sewing ring and one larger density along the atrial surface of the sewing ring consistent with vegetation...
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27890419/in-vitro-activity-of-tigecycline-alone-and-antimicrobial-combinations-against-clinical-neisseria-gonorrhoeae-isolates
#18
Hyukmin Lee, Hyunsoo Kim, Young Hee Seo, Dongeun Yong, Seok Hoon Jeong, Kyungwon Lee, Younsop Chong
In this study, we determined the in vitro activity of various combinations of antimicrobial agents against 54 Neisseria gonorrhoeae isolates. The combined activity of ceftriaxone (CRO) and azithromycin (AZM), CRO and doxycycline (DOX), CRO and spectinomycin (SPT), cefixime (CFX) and AZM, CFX and DOX, and CFX and SPT was determined using a checkerboard method. The fractional inhibitory concentration index (FICI) values for all combinations were either additive or indifferent, and no synergistic or antagonistic effects were found...
October 25, 2016: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/27889371/identification-and-molecular-characterization-of-escherichia-coli-blashv-genes-in-a-chinese-teaching-hospital
#19
Mei Zhu, Guangjian Yang, Ailing Li, Li Zong, Zhaoguang Dong, Junwan Lu, Kaibo Zhang, Cong Cheng, Qingli Chang, Xiuying Wu, Jianchao Ying, Xianneng Li, Li Ding, Haixiao Zheng, Junping Yu, Jun Ying, Teng Xu, Huiguang Yi, Peizhen Li, Kewei Li, Songquan Wu, Qiyu Bao, Junrong Wang
Escherichia coli (E. coli) commonly reside in human intestine and most E. coli strains are harmless, but some serotypes cause serious food poisoning. This study identified and molecularly characterized E. coli blaSHV genes from 490 E. coli strains with multi-drug resistance in a hospital population. PCR and molecular cloning and southern blot were performed to assess functions and localizations of this resistant E. coli gene and the pulsed-field gel electrophoresis (PFGE) was utilized to demonstrate the clonal relatedness of the positive E...
November 23, 2016: Gene
https://www.readbyqxmd.com/read/27888396/effects-of-administered-ethanol-and-methamphetamine-on-glial-glutamate-transporters-in-rat-striatum-and-hippocampus
#20
Fahad S Alshehri, Yusuf S Althobaiti, Youssef Sari
Exposure to ethanol (EtOH) or methamphetamine (MA) can lead to increase in extracellular glutamate concentration in the brain. Although studies from ours showed the effects of EtOH exposure on key glial glutamate transporters, little is known about the effects of sequential exposure to EtOH and MA or MA alone on certain glial glutamate transporters. In this study, we investigated the effects of sequential exposure to EtOH and MA on the expression of the major glutamate transporters, glutamate transporter 1 (GLT-1), as well as cystine/glutamate antiporter (xCT) and glutamate aspartate transporter (GLAST) in striatum and hippocampus...
November 25, 2016: Journal of Molecular Neuroscience: MN
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