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https://www.readbyqxmd.com/read/28716109/clinical-characteristics-and-outcomes-of-pseudomonas-aeruginosa-bacteremia-in-febrile-neutropenic-children-and-adolescents-with-the-impact-of-antibiotic-resistance-a-retrospective-study
#1
Hyo Sup Kim, Bo Kyoung Park, Seong Koo Kim, Seung Beom Han, Jae Wook Lee, Dong-Gun Lee, Nack-Gyun Chung, Bin Cho, Dae Chul Jeong, Jin Han Kang
BACKGROUND: Although the proportion of Pseudomonas aeruginosa infections has reduced after the introduction of antibiotics with anti-pseudomonal effects, P. aeruginosa bacteremia still causes high mortality in immunocompromised patients. This study determined the clinical characteristics and outcomes of P. aeruginosa bacteremia and the antibiotic susceptibilities of strains isolated from febrile neutropenic patients. METHODS: Thirty-one febrile neutropenic children and adolescents with underlying hematologic/oncologic disorders diagnosed with P...
July 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28699245/effects-of-intranasally-dosed-posaconazole-on-fungal-load-and-biomarkers-in-aspergillus-fumigatus-infected-immunocompromised-mice
#2
Genki Kimura, Takahiro Nakaoki, Yuki Nishimoto, Yuto Suzuki, Garth Rapeport, Pete Strong, Kazuhiro Ito, Yasuo Kizawa
Although anti-fungal triazoles are dosed orally or systemically for Aspergillus fumigatus infection, systemic adverse events and limited exposure of the lung cavity would make a topical treatment for the lung an attractive option. In this study, we examined the effects of intranasally dosed posaconazole on survival rates and biomarkers in A. fumigatus (itraconazole susceptible: ATCC13073 [Af]; or resistant: NCPF7100 [AfR]) infected, temporarily neutropenic A/J mice. Once daily treatment produced a dose-dependent improvement of survival of Af-infected mice (ED50 : 0...
July 11, 2017: Mycoses
https://www.readbyqxmd.com/read/28696047/a-randomized-trial-of-the-effectiveness-of-the-neutropenic-diet-versus-food-safety-guidelines-on-infection-rate-in-pediatric-oncology-patients
#3
Karen M Moody, Rebecca A Baker, Ruth O Santizo, Inan Olmez, Jeanie M Spies, Amanda Buthmann, Linda Granowetter, Robin Y Dulman, Kanyalakshmi Ayyanar, Jonathan B Gill, Aaron E Carroll
BACKGROUND: The neutropenic diet (ND) is prescribed to avoid introduction of bacteria into a host's gastrointestinal tract and reduce infection. Due to a lack of evidence to support the ND, there continues to be debate among pediatric oncologists regarding its usefulness. This prospective randomized controlled trial evaluated the difference in neutropenic infection rates in pediatric oncology patients randomized to Food and Drug Administration approved food safety guidelines (FSGs) versus the ND plus FSGs during one cycle of chemotherapy...
July 11, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28694231/repurposing-ivacaftor-for-treatment-of-staphylococcus-aureus-infections
#4
Ritesh Thakare, Alok Kumar Singh, Swetarka Das, N Vasudevan, Gorakhnath R Jachak, D Srinivas Reddy, Arunava Dasgupta, Sidharth Chopra
Drug repurposing of non-antimicrobials is a novel method to augment a seriously depleted drug pipeline for targeting drug-resistant pathogens. This article highlights the potent antimicrobial activity of Ivacaftor against Staphylococcus aureus, including vancomycin- and other multidrug-resistant strains. The potent activity of Ivacaftor in vivo is also demonstrated in a murine neutropenic thigh infection model. Taken together, these results support the potential of Ivacaftor as an antimicrobial agent for the treatment of staphylococcal infections...
July 7, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28692817/complications-of-hematopoietic-stem-transplantation-bacterial-infections
#5
REVIEW
Ali S Omrani, Reem S Almaghrabi
Bacterial infections remain a common complication of hematopoietic stem cell transplantation (HSCT), especially in the pre-engraftment phase. The risk of bacterial infections is mainly related to neutropenia, mucositis, and the presence of vascular lines. Most parts of the world have witnessed a shift in epidemiology toward Gram-negative bacteria; a large proportion of which are resistant to fluoroquinolones, extended-spectrum beta-lactams, carbapenems, and in some units even colistin. Meticulous infection control practices are essential for prevention of bacterial infections in HSCT...
July 3, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28672417/-infections-as-a-cause-of-unexplained-fever
#6
Bernd Salzberger, Gabriele Birkenfeld, Michael Iberer, Florian Hitzenbichler
Fever of unexplained (or unknown) origin (FUO) remains a relevant clinical problem even with modern diagnostic methods. In addition to the classical definition, new categories of FUO describe different clinical situations: nosocomial FUO, FUO in neutropenic/immundeficient patients and FUO in patients with HIV-infection. The new categories are defined by much shorter duration of fever, i. e. mostly three days. Each category of FUO shows a different spectrum of infectious diseases. Often, subacute bacterial endocarditis is very difficult to verify...
July 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28669678/virulence-and-antifungal-therapy-of-murine-disseminated-infection-by-rhodotorula-mucilaginosa
#7
Pamela Thomson, Loida López-Fernández, Josep Guarro, Javier Capilla
Rhodotorula infections have emerged in recent years causing mainly fungemia associated to high mortality. We have evaluated the in vitro activity of nine antifungal drugs against four clinical strains of Rhodotorula mucilaginosa, being amphotericin B, voriconazole and posaconazole the most active compounds. The experimental virulence of this fungus and the efficacy of the three mentioned drugs were evaluated in disseminated infections in neutropenic mice. Infection resulted in a high fungal load in all the organs studied without evident particular tropism...
June 16, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28668427/typical-mr-imaging-findings-of-perianal-infections-in-patients-with-hematologic-malignancies
#8
Nuray Haliloglu, Basak Gulpinar, Esra Ozkavukcu, Ayse Erden
OBJECTIVE: We aimed to investigate the MR imaging findings of patients with hematologic malignancies who have symptoms suggesting perianal infection and to demonstrate the importance of imaging. SUBJECTS AND METHODS: The study included 36 patients with hematologic malignancies who underwent anorectal MR imaging in our department between September 2011-May 2016. Two radiologists experienced in abdominal radiology viewed the MR images in consensus. Abscesses, fistulous or sinus tracts, signal alterations and contrast enhancement in keeping with an inflammation and edema in the perianal region were recorded...
August 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28662943/discovery-of-novel-antimycobacterial-drug-therapy-in-biofilm-of-pathogenic-nontuberculous-mycobacterial-keratitis
#9
Thet Tun Aung, Wei Hong Jeff Chor, Joey Kuok Hoong Yam, Michael Givskov, Liang Yang, Roger W Beuerman
PURPOSE: The potential of slow-growing mycobacteria to form biofilms in human tissues contributes to the problem of establishing an effective treatment strategy. The purpose of this study was to examine new antibiotic strategies to enhance current treatment options for these infections. METHODS: Sensitivities of Mycobacterium fortuitum ATCC 49404 and Mycobacterium chelonae ATCC 35752 were evaluated for different antimicrobials singly and in combination using broth microdilution and FICI (Fractional Inhibitory Concentration Index) synergy screening...
June 26, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28660351/moxifloxacin-versus-levofloxacin-or-ciprofloxacin-prophylaxis-in-acute-myeloid-leukemia-patients-receiving-chemotherapy
#10
Daniel J Przybylski, David J Reeves
PURPOSE: Patients receiving intensive chemotherapy regimens are at high risk for infectious complications due to prolonged neutropenia and hospital stay. Fluoroquinolone antibiotics, mainly levofloxacin and ciprofloxacin, are the mainstay of prophylactic therapy for these patients. There is limited data regarding the utilization of other quinolone antibiotics including moxifloxacin in this setting. METHODS: A retrospective chart review was completed comparing the use of prophylactic moxifloxacin to that of levofloxacin or ciprofloxacin during periods of prolonged neutropenia...
June 28, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28636889/complications-of-hematopoietic-stem-transplantation-fungal-infections
#11
REVIEW
Ali S Omrani, Reem S Almaghrabi
Patients undergoing allogeneic hematopoietic stem cell transplantation (HSCT) are at increased risk of invasive fungal infections, especially during the early neutropenic phase and severe graft-versus-host disease. Mold-active prophylaxis should be limited to the highest risk groups. Empiric antifungal therapy for HSCT with persistent febrile neutropenia is associated with unacceptable response rates, unnecessary antifungal therapy, increased risk of toxicity, and inflated costs. Empiric therapy should not be a substitute for detailed work up to identify the cause of fever in such patients...
June 13, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28634525/pseudomembranous-aspergillar-tracheobronchitis-in-a-non-neutropenic-critically-ill-patient-in-the-intensive-care-unit
#12
Sameen Khalid, Fnu Asad-Ur -Rahman, Aamer Abbass, Sigfredo Aldarondo, Khalid Abusaada
Invasive aspergillosis is an important cause of morbidity and mortality among immunocompromised patients. Prolonged neutropenia is the most common risk factor. It has rarely been reported to occur in non-neutropenic critically ill patients in the intensive care unit setting. Mortality rate in this group has been reported to be as high as 92%. We report a case of tracheobronchial aspergillosis in a non-neutropenic critically ill patient to highlight the fact that critically ill patients admitted in the intensive care unit can develop opportunistic infections such as invasive aspergillosis even in the absence of classic risk factors and prior history of immunosuppression...
January 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28630185/in-vivo-biomarker-analysis-of-intranasally-dosed-pc945-a-novel-antifungal-triazole-on-aspergillus-fumigatus-infection-in-immunocompromised-mice
#13
Genki Kimura, Takahiro Nakaoki, Thomas Colley, Garth Rapeport, Pete Strong, Kazuhiro Ito, Yasuo Kizawa
PC945 is a novel triazole optimised for lung delivery and the objective of this study is to determine the effects of intranasally dosed PC945 on Aspergillus fumigatus infection and associated biomarkers in immunocompromised mice. PC945, posaconazole or voriconazole was treated intranasally once daily on days 0 to 3 (early intervention) or days 1 to 3 (late intervention) post-infection in temporarily neutropenic A/J mice infected intranasally with A. fumigatus, and bronchoalveolar lavage fluid (BALF) and serum were collected on day 3...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28626736/enterococcus-spp-and-s-aureus-colonization-in-neutropenic-febrile-children-with-cancer
#14
Julia R Spinardi, Rodrigo Berea, Patricia A Orioli, Marina M Gabriele, Alessandra Navarini, Marina T Marques, Milton N Neto, Marcelo J Mimica
INTRODUCTION: Febrile neutropenia is one of the most serious treatment-related complications in cancer patients. Susceptible to rapidly progressing infections, which result in prolonged hospitalization and use of broad-spectrum antibiotics, neutropenic patients are subject to colonization by multiresistant agents, which enhances the risk of infections. METHODS: In this study we included samples collected with nasal, oropharyngeal and anal swabs from hospitalized children with febrile neutropenia following chemotherapy, between March 2014 and 2015, aiming to elucidate colonization by S...
June 2017: Germs
https://www.readbyqxmd.com/read/28618307/meta-analysis-of-selected-toxicity-endpoints-of-cdk4-6-inhibitors-palbociclib-and-ribociclib
#15
REVIEW
R Costa, R B Costa, Sarah M Talamantes, Irene Helenowski, Jonna Peterson, Jason Kaplan, B A Carneiro, Francis J Giles, W J Gradishar
PURPOSE: Cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors such as palbociclib and ribociclib are associated with distinct adverse effects (AEs) compared to other targeted therapies. This meta-analysis of clinical trials summarizes these agents' toxicity profile. METHODS: A librarian-guided literature search was conducted in March of 2017. The trials needed to have at least one of the study arms consisting of palbociclib or ribociclib monotherapy at currently FDA approved dose regimens...
June 12, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28612451/transplantation-related-toxicity-and-mortality-in-older-autologous-hematopoietic-cell-transplantation-recipients
#16
Hewan Belete, Linda J Burns, Ryan Shanley, Manju Nayar, Brian McClune, Aleksandr Lazaryan, Veronika Bachanova, Nelli Bejanyan, Celalettin Ustun, Claudio Brunstein, Daniel J Weisdorf, Mukta Arora
With advances in supportive care, autologous hematopoietic cell transplant (AHCT) is increasingly being performed for patients older than 60 years. We analyzed patients receiving an AHCT for multiple myeloma or lymphoma in a contemporary cohort (2010-2012), with consistent treatment and supportive care and compared outcomes [CTCAE grade 3-5 toxicities, non-relapse mortality (NRM) and overall-survival (OS)] of younger (40-59 years, n=77) versus older (≥ 60 years, n=67) recipients. The proportion of patients with neutropenic infections was higher in the older group (64% vs...
June 13, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28601903/can-complications-in-febrile-neutropenia-be-predicted-report-from-a-developing-country
#17
Sapna Oberoi, Anirban Das, Amita Trehan, Pallab Ray, Deepak Bansal
PURPOSE: Febrile neutropenia (FN) is an important cause of morbidity and mortality in children with acute lymphoblastic leukemia (ALL). We aimed to look at complications in febrile neutropenia and to derive a risk model for developing complications from the variables predicting complications. METHODS: Children on treatment for ALL, presenting with FN, were prospectively enrolled over a period of 1 year. Their clinical presentation, course during hospital stay, and outcomes were recorded...
June 11, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28597476/safe-fluoroquinolones-prophylaxis-in-blood-cancer-patients-with-chemotherapy-induced-neutropenia-and-glucose-6-phosphate-dehydrogenase-deficiency
#18
M Sanna, G Caocci, F Orrù, A Ledda, A Vacca, E Piras, C Fozza, P Deias, G Tidore, F Dore, G La Nasa
WHAT IS KNOWN AND OBJECTIVE: Bacterial infections are the leading causes of morbidity and mortality in haematologic patients with chemotherapy-induced neutropenia. The only strategy shown to be effective in reducing febrile neutropenia incidence is fluoroquinolone prophylaxis, but the safety of this class of drugs in patients with glucose-6-phosphate dehydrogenase deficiency (G6PD-), the most common human enzyme defect, is still controversial because of the claimed association with acute haemolytic anaemia...
June 8, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28588617/outcomes-of-six-dose-high-dose-cytarabine-as-a-salvage-regimen-for-patients-with-relapsed-refractory-acute-myeloid-leukemia
#19
Brandi Anders, Lauren Veltri, Abraham S Kanate, Alexandra Shillingburg, Nilay Shah, Michael Craig, Aaron Cumpston
Relapsed/refractory acute myeloid leukemia (RR-AML) is associated with poor prognosis and long-term disease-free survival requires allogeneic hematopoietic cell transplantation (allo-HCT). Limited data exists, regarding the optimal regimen to obtain remission prior to allo-HCT. Single agent high-dose cytarabine (10-12 doses administered every 12 hours) has been previously used as induction therapy. Six-dose high-dose cytarabine (HiDAC-6), commonly used as a consolidation regimen, has never been evaluated as induction therapy...
2017: Advances in Hematology
https://www.readbyqxmd.com/read/28584756/disseminated-cutaneous-trichosporonosis-in-an-adult-bone-marrow-transplant-patient
#20
A M Y Yong, S S Yang, K B Tan, S A Ho
The Trichosporon species are yeast-like opportunistic pathogens in immunocompromised patients. Trichosporon asahii infections have been reported in pediatric bone marrow transplant (BMT) patients. However, its incidence is low in the adult literature. A 52-year-old Chinese woman who was diagnosed with acute myeloid leukemia received induction chemotherapy and underwent allogenic bone marrow transplant, which was complicated by a relapse and required salvage chemotherapy. She developed persistent non-neutropenic fever secondary to presumed hepatosplenic candidiasis...
May 2017: Indian Dermatology Online Journal
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