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Mucormycosis

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https://www.readbyqxmd.com/read/28713749/mucormycosis-of-the-frontal-sinus-a-rare-case-report-and-review
#1
Nanda Kishore Sahoo, Vishal Kulkarni, Amit K Bhandari, Arun Kumar
Mucormycosis of the frontal sinus are rarely seen in day to day clinical practice. Although this fungus is commonly found in the environment, the disease is usually prevented by the immune system and is hence rare. Well-recognized risk factors for the disease include diabetes mellitus, leukemia, aplastic anemia, myelodysplastic syndrome, blood dyscrasias, and immunosuppressive therapy in organ transplantation, renal disease, sepsis, and severe burns. The disease is primarily found in those who are immunocompromised, but it may also manifest in immuno competent persons...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28707783/aggressive-necrotizing-pseudomonal-sinonasal-infections
#2
Edward C Kuan, Bobby A Tajudeen, Kevin C Welch, Rakesh K Chandra, Ben J Glasgow, Jeffrey D Suh
BACKGROUND: Pseudomonas aeruginosa is a gram-negative bacterium frequently implicated in recalcitrant sinonasal infections, especially in immunocompromised hosts. We report 6 cases of rapidly progressive pseudomonal acute rhinosinusitis producing tissue necrosis and, in certain cases, cranial nerve palsies. METHODS: Retrospective review of 6 patients with aggressive necrotizing sinonasal infections treated at 4 tertiary academic medical centers with sinonasal cultures growing P...
July 14, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28705685/-fungal-sinusitis
#3
REVIEW
E Lafont, C Aguilar, P Vironneau, R Kania, A Alanio, S Poirée, O Lortholary, F Lanternier
Although sinusitis affects about 20 % of the population, fungal sinusitis is rare. Aspergillus sp. are most frequently implicated. Fungal sinusitis represents a wide spectrum of disorders, including acute or chronic and invasive or non-invasive forms. Invasive fungal sinusitis may develop in an immunocompromised or diabetic patient, whereas non-invasive fungal sinusitis should be considered in a chronic situation, resistant to antibiotics in immunocompetent patients. Allergic fungal sinusitis is related to hypersensitivity of the host to the fungus...
July 10, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28702763/pharmacokinetics-of-antifungal-drugs-practical-implications-for-optimized-treatment-of-patients
#4
REVIEW
Romuald Bellmann, Piotr Smuszkiewicz
INTRODUCTION: Because of the high mortality of invasive fungal infections (IFIs), appropriate exposure to antifungals appears to be crucial for therapeutic efficacy and safety. MATERIALS AND METHODS: This review summarises published pharmacokinetic data on systemically administered antifungals focusing on co-morbidities, target-site penetration, and combination antifungal therapy. CONCLUSIONS AND DISCUSSION: Amphotericin B is eliminated unchanged via urine and faeces...
July 12, 2017: Infection
https://www.readbyqxmd.com/read/28698667/phylogenetic-analysis-reveals-two-genotypes-of-the-emerging-fungus-mucor-indicus-an-opportunistic-human-pathogen-in-immunocompromised-patients
#5
Saad J Taj-Aldeen, Muna Almaslamani, Bart Theelen, Teun Boekhout
Mucormycosis is a rare fungal infection caused by Mucor indicus. Phylogenetic analysis of many M. indicus isolates, mainly sampled from different clinical and environmental specimens collected worldwide, revealed two genotypes, I and II, based on ITS and D1/D2 LSU rDNA sequences. A retrospective review of the literature revealed 13 cases. Eight (76.9%) patients had disseminated infections, and the overall mortality rate was 30.7%. A pulmonary infection caused by M. indicus genotype I in a liver transplant recipient was disseminated to include the skin and was successfully treated with liposomal amphotericin B and aggressive surgery...
July 12, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28685375/higher-in-vitro-proliferation-rate-of-rhizopus-oryzae-in-blood-of-diabetic-individuals-in-chronic-glycaemic-control-compared-with-non-diabetic-individuals
#6
Grace Salazar-Tamayo, Luis E López-Jácome, Jesús Resendiz-Sanchez, Rafael Franco-Cendejas, Patricia Rodriguez-Zulueta, Dora E Corzo-León
Metabolic control improves outcomes associated with mucormycosis. The aim of this study was to compare the in vitro proliferation of Rhizopus oryzae in blood of individuals with and without diabetes at different glycaemic levels. Ninety-five individuals were included. Blood samples from each participant were incubated with sporangiospores of R. oryzae. The germination, filamentation and growth of R. oryzae were compared at different time points. Four groups were defined, one without (group A, n = 30) and three with diabetes: group B (HbA1c ≤7%, N = 24), group C (HbA1c 7...
July 6, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28667347/clinical-analysis-of-diabetic-combined-pulmonary-mucormycosis
#7
Yu-Hong Li, Peng Sun, Jian-Chao Guo
OBJECTIVE: To improve the understanding of diabetic combined pulmonary mucormycosis. METHODS AND RESULTS: The clinical data of twelve patients diagnosed as diabetic combined pulmonary mucormycosis were analyzed by the clinical manifestations, imaging features, diagnosis, treatment and prognosis of this disease. Patients from January 1999 to June 2015 in our hospital had poor blood glucose control and varying degrees of diabetic chronic complications with an on average of diabetes 8...
June 30, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28658779/sclerosing-mediastinitis-presenting-as-complete-heart-block
#8
Reena Bharadwaj, Manoj Gopal Madakshira, Prashant Bharadwaj, Hardeep Singh Sidhu
Sclerosing Mediastinitis (SM) is a rare condition which is characterized by the presence of dense fibrosis which infiltrates and encroaches upon various structures in the mediastinal cavity. Depending on the extent and the predominant organ of involvement, the patient presents with symptomatology of dysphagia, superior vena cava compression syndrome or dyspnoea. However, the involvement of the heart is rarely seen. Aetiologies of SM are several, with infections being the most common. We discuss a case of SM involving the oesophagus, descending aorta, hilum of lungs and the heart secondary to mucormycosis in an immunocompetent male...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28658765/prevalence-of-lung-lesions-at-autopsy-a-histopathological-study
#9
Pratima Khare, Renu Gupta, Mukta Ahuja, Nupur Khare, Swapnil Agarwal, Deepti Bansal
INTRODUCTION: Autopsies are carried out to establish the identity, cause of death, time of death, and ante-mortem or post-mortem nature of death. These help in establishing the cause of death and ascertain the disease process which led to death. AIM: To study the prevalence and pattern of lung diseases in medicolegal autopsies, confirmed by histopathological examination. MATERIALS AND METHODS: This retrospective study was carried out in the Department of Pathology...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28652241/prophylactic-treatment-with-vt-1161-protects-immunosuppressed-mice-from-rhizopus-arrhizus-var-arrhizus-infection
#10
Teclegiorgis Gebremariam, Sondus Alkhazraji, Lin Lin, Nathan P Wiederhold, Edward P Garvey, William J Hoekstra, Robert J Schotzinger, Thomas F Patterson, Scott G Filler, Ashraf S Ibrahim
We compared prophylactic or continuous therapy of the investigational drug VT-1161 to posaconazole in treating murine mucormycosis due to Rhizopus arrhizus var. arrhizus In the prophylaxis studies, only VT-1161 resulted in improved survival and lowered tissue fungal burden of immunosuppressed infected mice. In the continuous therapy, VT-1161 outperformed posaconazole in prolonging mice survival time despite their comparable effect in lowering tissue fungal burden. These results support the further development of VT-1161 against mucormycosis...
June 26, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28646276/rhizopus-arrhizus-invasive-infection-due-to-self-inflicted-scratch-injuries-in-a-diabetic-patient-with-non-ketotic-acidosis
#11
Luis Buzón Martín, Miguel Ángel Morán Rodríguez, Nicole Mercier, Maria Ortega Lafont, Eva Ojeda Fernández, Ana Ruiz de la Parte, Miguel Estefanía
Mucormycosis is a rare infection caused by members included in the subphylum Mucoromycotina. Characterized by the histopathological hallmark of angioinvasion, these infections affect most often patients with certain underlying conditions carrying immunosuppression (haematological neoplasias, diabetic ketoacidosis and other forms of acidosis, and iron overload) or immunocompetent patients with traumatic mucocutaneous barriers breakdown and direct inoculation of the mould. A case is presented in which a rare underlying condition (non-ketotic acidosis) and a rare cause of cutaneous injuries collide...
June 23, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28639065/nosocomial-rhinocerebral-mucormycosis-two-cases-with-a-temporal-relationship
#12
Justo Sánchez-Gil, Emilio Guirao-Arrabal, Ginés David Parra-García, María Del Pilar Luzón-García, Maria Fe Bautista-Marín, Matías Barayobre-Barayobre, Andrés Fontalba-Navas
Mucormycosis is an unusual fungal infection that usually affects immunosuppressed patients. Small outbreaks of mucormycosis have been previously reported. We present two clinical cases of fatal rhinocerebral mucormycosis with a close temporal relationship between them and a possible nosocomial transmission: case 1 was a 75-year-old male with diabetes and COPD, treated with antibiotics and systemic corticosteroids, who developed rhinocerebral mucormycosis. Case 2 was an 88-year-old woman who was treated with systemic antibiotics and corticosteroids and developed the same infection after insertion of a nasogastric tube...
June 21, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28623532/rhizopus-homothallicus-causing-invasive-infections-series-of-three-cases-from-a-single-centre-in-north-india
#13
Prathyusha Kokkayil, Mragnayani Pandey, Reshu Agarwal, Pratibha Kale, Gagandeep Singh, Immaculata Xess
Mucormycoses are opportunistic fungal infections with a high mortality rate. Rhizopus oryzae is the most common agent implicated in human infections. Although R. homothallicus has been previously reported to be a cause of pulmonary mucormycosis, it is the first time that we are reporting as a causative agent of rhino-orbital and cutaneous mucormycosis.
June 16, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28596926/invasive-mucormycosis-induced-pneumopericardium-a-rare-cause-of-pneumopericardium-in-an-immunocompromised-patient
#14
Sana Khan, Muhammad Waqar Elahi, Waqas Ullah, Hafez Mohammad Ammar Abdullah, Ejaz Ahmad, Mayar Al Mohajer, Aneela Majeed
Mucor and Rhizopus cause life-threatening infections primarily involving the lungs and sinuses, which disseminate very rapidly by necrosis and infarction of the contiguous tissues. We present a case of a 64-year-old African American posttransplant patient who presented with a productive cough and weight loss. He had a past surgical history of renal transplant for renal cell carcinoma and was on dual immunosuppressive therapy, that is, mycophenolate and tacrolimus. During his hospital stay, he developed a pneumopericardium due to the direct extension of a lung lesion...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28591186/increasing-incidence-of-mucormycosis-in-a-large-spanish-hospital-from-2007-to-2015-epidemiology-and-microbiological-characterization-of-the-isolates
#15
Jesús Guinea, Pilar Escribano, Antonio Vena, Patricia Muñoz, María Del Carmen Martínez-Jiménez, Belén Padilla, Emilio Bouza
We studied 19 cases of proven/probable mucormycosis diagnosed from 2007 to 2015 in our hospital and assessed the microbiological characteristics of the isolates. We recorded the incidence of mucormycosis and clinical and microbiological data of infected patients. Isolates were identified to molecular level and tested for their antifungal susceptibility to azoles, amphotericin B, and liposomal amphotericin B according to the CLSI M-38 A2 procedure. The incidence of mucormycosis in cases/100,000 hospital admissions during 2007-2015 increased significantly with respect to that reported in 1988-2006 (3...
2017: PloS One
https://www.readbyqxmd.com/read/28586604/orbital-involvement-in-sinonasal-diseases
#16
Zia-Us-Salam Qazi, Sarfraz Latif, Sadia Maqsood Awan
BACKGROUND: Orbital involvement in sinonasal diseases can present as proptosis, ophthalmoplegia or even as blindness due to optic nerve damage. There are a number of sinonasal diseases which can involve eyes. The purpose of this study was to enlist diagnoses of all the patients with sinonasal disease, in which orbit was also involved unilaterally or bilaterally and to analyse the management strategy and final outcome in all the cases. METHODS: Hundred consecutive patients having orbital symptoms along with sinonasal complaints that presented in ENT department of Shaikh Zayed federal postgraduate medical institute were included in our prospective study...
October 2016: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28584996/endpoint-assessment-in-rabbit-models-of-invasive-pulmonary-aspergillosis-and-mucormycosis
#17
Vidmantas Petraitis, Ruta Petraitiene, William W Hope, Thomas J Walsh
Multiple animal models have been developed to study the pathogenesis of invasive pulmonary aspergillosis, as well as to evaluate the efficacy, pharmacokinetics, and pharmacodynamics of various antifungal agents and vaccines. Each model is beneficial depending on the questions that are asked. In this chapter, we will discuss the endpoints assessment of the persistently neutropenic rabbit models of invasive pulmonary aspergillosis and invasive pulmonary mucormycosis.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28580534/fatal-pulmonary-mucormycosis-due-to-rhizopus-homothallicus
#18
Fabrice Compain, Nawel Aït-Ammar, Françoise Botterel, Laure Gibault, Francoise Le Pimpec Barthes, Eric Dannaoui
We report here a case of cavitary pneumonia due to Rhizopus homothallicus in a diabetic patient. This is the first proven case of R. homothallicus infection in Western countries and the third case described worldwide. The organism was isolated from lung biopsy and identified after amplification and sequencing of the internal transcribed spacer region.
June 3, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28580237/combination-liposomal-amphotericin-b-posaconazole-and-oral-amphotericin-b-for-treatment-of-gastrointestinal-mucorales-in-an-immunocompromised-patient
#19
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/28577122/successful-treatment-of-pulmonary-mucormycosis-caused-by-cunninghamella-bertholletiae-with-high-dose-liposomal-amphotericin-b-10%C3%A2-mg-kg-day-followed-by-a-lobectomy-in-cord-blood-transplant-recipients
#20
Hikari Ota, Hisashi Yamamoto, Muneyoshi Kimura, Hideki Araoka, Takeshi Fujii, Takashi Umeyama, Hideaki Ohno, Yoshitsugu Miyazaki, Daisuke Kaji, Yuki Taya, Aya Nishida, Kazuya Ishiwata, Masanori Tsuji, Shinsuke Takagi, Yuki Asano-Mori, Go Yamamoto, Naoyuki Uchida, Koji Izutsu, Kazuhiro Masuoka, Atsushi Wake, Akiko Yoneyama, Shigeyoshi Makino, Shuichi Taniguchi
Infection caused by Cunninghamella bertholletiae carries one of the highest mortality rates among mucormycosis, and there are no reported cases that survived from the infection in allogeneic hematopoietic stem cell transplantation recipients occurring before neutrophil engraftment. Here, we present two cases of pulmonary mucormycosis caused by C. bertholletiae occurring before neutrophil engraftment after cord blood transplantation. Both were successfully treated with high-dose liposomal amphotericin B (10 mg/kg/day) combined with micafungin, which was then followed by neutrophil recovery, reduction in immunosuppressive agents, and a subsequent lobectomy...
June 2, 2017: Mycopathologia
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