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https://www.readbyqxmd.com/read/28636889/complications-of-hematopoietic-stem-transplantation-fungal-infections
#1
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/28634301/microbial-glycoside-hydrolases-as-antibiofilm-agents-with-cross-kingdom-activity
#2
Brendan D Snarr, Perrin Baker, Natalie C Bamford, Yukiko Sato, Hong Liu, Mélanie Lehoux, Fabrice N Gravelat, Hanna Ostapska, Shane R Baistrocchi, Robert P Cerone, Elan E Filler, Matthew R Parsek, Scott G Filler, P Lynne Howell, Donald C Sheppard
Galactosaminogalactan and Pel are cationic heteropolysaccharides produced by the opportunistic pathogens Aspergillus fumigatus and Pseudomonas aeruginosa, respectively. These exopolysaccharides both contain 1,4-linked N-acetyl-d-galactosamine and play an important role in biofilm formation by these organisms. Proteins containing glycoside hydrolase domains have recently been identified within the biosynthetic pathway of each exopolysaccharide. Recombinant hydrolase domains from these proteins (Sph3h from A...
June 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28630247/saksenaea-vasiformis-infection-in-an-immunocompetent-patient-in-rural-australia
#3
Wiktor Teodor Pilch, Ned Kinnear, Derek Barry Hennessey
An 81-year-old man from rural Australia presented with right pretibial cellulitis 7 days after minor trauma against furniture. He failed to improve despite antibiotics and surgical debridement. Subsequent cultures grew the rare fungus Saksenaea vasiformis, which was treated with further surgical debridement, amphotericin B and posaconazole. This was successful and the patient made a full recovery. We present the case and discuss lessons learnt.
June 18, 2017: BMJ Case Reports
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
#4
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/28620958/a-network-meta-analysis-of-primary-prophylaxis-for-invasive-fungal-infection-in-haematological-patients
#5
REVIEW
L P Leonart, F S Tonin, V L Ferreira, S T S Penteado, A Wiens, F A Motta, R Pontarolo
WHAT IS KNOWN AND OBJECTIVE: Antifungal prophylaxis is an option to reduce the incidence of invasive fungal infection (IFI) in haematological patients. To date, no network meta-analysis (NMA) of high-quality evidence (double-blind randomized controlled trials) has been performed on this subject. This systematic review and NMA aimed to evaluate the safety and efficacy of different antifungal agents used for prophylaxis of IFI in patients with haematological disorders. METHODS: A systematic review was performed according to PRISMA and Cochrane recommendations...
June 15, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28618155/clinical-outcome-of-cystic-fibrosis-patients-colonized-by-scedosporium-species-following-lung-transplantation-a-single-center-15-year-experience
#6
Perrine Parize, Veronique Boussaud, Vianney Poinsignon, Emilie Sitterlé, Francoise Botterel, Sandrine Lefeuvre, Romain Guillemain, Eric Dannaoui, Elaine M Billaud
BACKGROUND: Fungi of the genus Scedosporium are emerging pathogens responsible for severe infections in lung transplant recipients. These infections are associated with poor prognosis and some centers consider now Scedosporium species colonization as a contraindication to lung transplantation (LT) even though no published evidence demonstrates that Scedosporium species colonization is associated with higher morbidity or mortality after LT. METHODS: Here we aim to describe characteristics and outcome of cystic fibrosis (CF) lung transplant recipients colonized with Scedosporium species in a single center over a 15-year period...
June 15, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28608665/comparison-of-plasma-concentrations-of-posaconazole-with-the-oral-suspension-and-tablet-in-korean-patients-with-hematologic-malignancy
#7
Hyeon Jeong Suh, Inho Kim, Joo Youn Cho, Sang In Park, Seo Hyun Yoon, Jeong Ok Lee, Youngil Koh, Kyoung Ho Song, Pyoeng Gyun Choe, Kyung Sang Yu, Eu Suk Kim, Hong Bin Kim, Soo Mee Bang, Nam Joong Kim, Sang Hoon Song, Wan Beom Park, Myoung Don Oh
The posaconazole tablet formulation was developed to have improved bioavailability compared to the oral suspension. Here, we compared posaconazole plasma concentration (PPC) with the posaconazole oral suspension versus the tablet in Korean patients undergoing remission induction chemotherapy for hematologic malignancies. PPC was measured at 3, 8, and 15 days of treatment with the oral suspension (174 patients) or the tablet (40 patients). At all time-points, mean PPC was significantly higher with the tablet compared to the oral suspension...
June 9, 2017: Infection & Chemotherapy
https://www.readbyqxmd.com/read/28605488/in-vitro-activity-of-the-novel-antifungal-compound-f901318-against-difficult-to-treat-aspergillus-isolates
#8
J B Buil, A J M M Rijs, J F Meis, M Birch, D Law, W J G Melchers, P E Verweij
Background: F901318 is a new antifungal agent with a novel mechanism of action with activity against Aspergillus species. We investigated the in vitro activity of F901318 against a collection of Aspergillus isolates. Methods: A total of 213 Aspergillus isolates were used in this study. A total of 143 Aspergillus fumigatus sensu stricto isolates were used, of which 133 were azole resistant [25 TR 34 /L98H; 25 TR 46 /Y121F/T289A; 33 A. fumigatus with cyp51A -associated point mutations (25 G54, 1 G432 and 7 M220); and 50 azole-resistant A...
June 10, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28597467/development-of-indicators-for-evaluating-the-appropriate-use-of-triazoles-for-invasive-fungal-disease-a-delphi-panel-survey
#9
W H Dong, G Z Zhang, J X Li, Y Wang, T T Wang, Y L Dong
WHAT IS KNOWN AND OBJECTIVES: Triazoles including fluconazole, itraconazole, voriconazole and posaconazole are now widely used, whereas in some countries, they are reportedly used in inappropriate way frequently; thus, it is clearly a matter of urgency to regulate the use of triazole drugs. Several studies have made good attempts to evaluate antifungal use, but they did not cover the entire medication process. This study aimed to establish indicators for the appropriate use of triazoles for invasive fungal disease, so as to produce a reference for evaluating and standardizing the rational application of triazole antifungals...
June 8, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28588560/molecular-epidemiology-and-antifungal-susceptibility-of-candida-glabrata-in-china-august-2009-to-july-2014-a-multi-center-study
#10
Xin Hou, Meng Xiao, Sharon C-A Chen, Fanrong Kong, He Wang, Yun-Zhuo Chu, Mei Kang, Zi-Yong Sun, Zhi-Dong Hu, Ruo-Yu Li, Juan Lu, Kang Liao, Tie-Shi Hu, Yu-Xing Ni, Gui-Ling Zou, Ge Zhang, Xin Fan, Yu-Pei Zhao, Ying-Chun Xu
Candida glabrata is an increasingly important cause of invasive candidiasis. In China, relatively little is known of the molecular epidemiology of C. glabrata and of its antifungal susceptibility patterns. Here we studied 411 non-duplicate C. glabrata isolates from 411 patients at 11 hospitals participating in the National China Hospital Invasive Fungal Surveillance Net program (CHIF-NET; 2010-2014). Genotyping was performed using multilocus sequence typing (MLST) employing six genetic loci and by microsatellite analysis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28580237/combination-liposomal-amphotericin-b-posaconazole-and-oral-amphotericin-b-for-treatment-of-gastrointestinal-mucorales-in-an-immunocompromised-patient
#11
Anthony Anderson, Dayna McManus, Sarah Perreault, Ying-Chun Lo, Stuart Seropian, Jeffrey E Topal
Mucormycosis is a life threatening infection caused by fungi in the order Mucorales. Mucormycosis can affect any organ system with rhino-orbital-cerebral and pulmonary infections being the most predominant infection types. Gastrointestinal mucormycosis is rare and accounts for only 4-7% of all cases. Here, we present a case of invasive gastrointestinal mucormycosis in an immunocompromised host treated with systemic and topical anti-mold therapy.
September 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28580148/post-tuberculosis-mycetoma-bronchoscopic-removal
#12
Liam J Chawke, Eoin B Hunt, Marcus P Kennedy, Desmond M Murphy
A 76-year-old male non-smoker presented to our institution with cough and haemoptysis. He had been treated for cavitatory pulmonary Mycobacterium tuberculosis of the right upper lobe 10 years previously. Chest radiograph and subsequent computed tomography (CT) of the chest demonstrated a right upper cavity containing a mass suspicious for mycetoma. Flexible bronchoscopy under conscious sedation demonstrated a mass obstructing the anterior segment of the right upper lobe. The abnormality was subsequently removed using a flexible endobronchial cryoprobe...
July 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28569350/cost-effectiveness-of-posaconazole-tablets-versus-fluconazole-as-prophylaxis-for-invasive-fungal-diseases-in-patients-with-graft-versus-host-disease-after-allogeneic-hematopoietic-stem-cell-transplantation
#13
Santiago Grau, Rafael Cámara, Manuel Jurado, Jaime Sanz, Belén Aragón, Irmina Gozalbo
BACKGROUND: The cost-effectiveness of posaconazole oral suspension versus fluconazole capsules for the prophylaxis of invasive fungal diseases (IFDs) in immunosuppressed allogeneic hematopoietic stem cell transplantation (HSCT) recipients has already been proven. Now, a new solid oral tablet formulation for posaconazole has been developed with improved bioavailability, allowing a reduced daily dosage that can be taken independently of food intake. However, the efficacy of this new formulation should be evaluated since it is associated with a higher cost than the posaconazole oral suspension...
May 31, 2017: European Journal of Health Economics: HEPAC: Health Economics in Prevention and Care
https://www.readbyqxmd.com/read/28566083/-a-case-of-coccidioidomycosis-in-turkey-imported-from-the-united-states-of-america
#14
Seniha Başaran, Nilgün Karabıçak, Serap Şimşek Yavuz, Nathan P Wiederhold, Seda Şafak, Aysun Sarıbuğa, Deanna A Sutton, Züleyha Bingöl, Atahan Çağatay, Halit Özsüt, Zeki Kılıçaslan, Haluk Eraksoy
Coccidioidomycosis caused by Coccidioides immitis or Coccidioides posadasii is a rare infectious disease except in endemic regions. In this report the third documented imported case of coccidioidomycosis in Turkey was presented. A thirty-year-old male patient was admitted to our hospital with fever and purulent drainage from his chest tube. He had worked in Arizona, USA, until 4 months before this presentation. While in Arizona, he experienced cough and hemoptysis and was diagnosed as pulmonary coccidioidomycosis...
April 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28533238/posaconazole-induced-hypertension-and-hypokalemia-in-vivo-11%C3%AE-hydroxysteroid-dehydrogenase-inhibition
#15
George R Thompson, Diana Chang, Rebecca R Wittenberg, Ian McHardy, Alison Semrad
We describe a case of apparent mineralocorticoid excess (AME) secondary to posaconazole and suggest the biochemical mechanism. Clinical and laboratory investigation confirmed 11β-hydroxysteroid dehydrogenase inhibition and withholding therapy led to a resolution of all clinical and laboratory abnormalities. A lower dose of posaconazole was later restarted and avoided recurrence of this syndrome. Additional studies are necessary to determine the frequency of posaconazole induced AME and whether other azole antifungals can be associated with this phenomenon...
May 22, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28527169/isolated-renal-mucormycosis
#16
R Sriranga, Satyajeet Pawar, Wasim Khot, Neeraj Nischal, Manish Soneja, H A Venkatesh, Ragesh R Nair, Raj Kanna, Mehar C Sharma, S K Sharma
Mucormycosis in humans has been described as early as 1885 in literature. Isolated renal mucormycosis is rare as it has been mainly described in developing countries like India and China. It is rarer still to find this entity in immunocompetent young males without any risk factors. Specific guidelines on the treatment is not yet known but combined surgical and medical therapy is considered the best modality for its management. We describe a young male who presented with bilateral hydroureteronephrosis. He was initially treated as a case renal tuberculosis which is relatively more common in TB endemic country like ours...
April 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28526521/coexistence-of-aspergilloma-and-pulmonary-hydatid-cyst-in-an-immunocompetent-individual
#17
F Aala, H Badali, S Hashemi Fesharaki, M Boroumand, M Sotoudeh Anvari, H Davari, S Agha Kuchak Afshari, S Khodavaisy
Echinococcosis is a zoonotic disease caused by Echinococcus granulosus sensu lato. The liver and lungs are the most commonly sites of infections, but involvements of other organs were also observed. Recently, the coinfection of pulmonary hydatid cyst with aspergilloma has been reported in the literature. Herein, we report a successful treatment of coinfection of cystic echinoccosis with aspergilloma due to Aspergillus flavus in a 34-year-old female. In vitro antifungal susceptibility tests revealed that the MIC values for antifungals employed in this case were posaconazole (0...
May 16, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28513812/common-dermatophytes-and-in-vitro-anti-fungal-susceptibility-testing-in-patients-attending-the-dermatological-clinic-at-the-hospital-for-tropical-medicine-bangkok
#18
Watcharamat Muangkaew, Thanwa Wongsuk, Natthanej Luplertlop
Dermatophytes comprising the genera Trichophyton, Microsporum, and Epidermophyton are important causes of superficial mycoses. The number of infected patients and the distribution of species of these organisms in our hospital were unknown. We therefore aimed to investigate the clinical pattern of dermatophyte infections and to identify the species of these dermatophytes at the Dermatological Clinic of the Hospital for Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok in a 1-year period...
May 17, 2017: New Microbiologica
https://www.readbyqxmd.com/read/28508692/seifem-2010-e-economic-evaluation-of-posaconazole-for-antifungal-prophylaxis-in-patients-with-acute-myeloid-leukemia-receiving-induction-chemotherapy
#19
Alessandro Busca, Federica Lessi, Luisa Verga, Anna Candoni, Chiara Cattaneo, Simone Cesaro, Giulia Dragonetti, Mario Delia, Alessio De Luca, Gaspare Guglielmi, Mario Tumbarello, Giordana Martino, Gianpaolo Nadali, Rosa Fanci, Marco Picardi, Leonardo Potenza, Annamaria Nosari, Franco Aversa, Livio Pagano
Posaconazole demonstrated clinical superiority over fluconazole and itraconazole for prophylaxis of mold infections, although concerns exist regarding the high acquisition cost for posaconazole. In this respect, we sought to analyze the costs of antifungal prophylaxis in patients with acute myeloid leukemia (AML) who received prophylactic posaconazole (n = 510, 58%), itraconazole (n = 120, 14%) or fluconazole (n = 175, 20%) during induction chemotherapy. The estimated cost of antifungal prophylaxis as well as the costs of subsequent systemic antifungal therapy for treatening an invasive fungal infections (IFI) was higher in the posaconazole group compared to itraconazole and fluconazole groups...
May 16, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28507111/real-life-assessment-of-the-safety-and-effectiveness-of-the-new-tablet-and-intravenous-formulations-of-posaconazole-in-the-prophylaxis-of-invasive-fungal-infections-analysis-of-343-courses
#20
Frank P Tverdek, Sang Taek Heo, Samuel L Aitken, Bruno Granwehr, Dimitrios P Kontoyiannis
BACKGROUND: Posaconazole is the preferred mold-active azole for prophylaxis against invasive fungal infection (IFI) in patients with hematologic malignancy (HM). Delayed release tablet and intravenous formulations of posaconazole have recently become available, but clinical data are limited. We sought to examine the real-world pharmacokinetics and prophylactic effectiveness of the new formulations of posaconazole given as prophylaxis in patients with HM. METHODS: A retrospective cohort of all consecutive adult inpatients with HM who received ≥3 days of posaconazole as tablet or intravenous from 12/1/2013-12/31/2015 for primary IFI prophylaxis at MD Anderson Cancer center...
May 15, 2017: Antimicrobial Agents and Chemotherapy
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