Prevention, Diagnosis, and Treatment of Invasive Fungal Infections in Patients with Cancer and Neutropenia

2004 ◽  
Vol 2 (5) ◽  
pp. 455-469 ◽  
Author(s):  
Thomas A. Cumbo ◽  
Brahm H. Segal

Invasive fungal infections are a major cause of morbidity and mortality in patients with prolonged neutropenia and in allogeneic hematopoietic stem cell transplant recipients. The degree and duration of neutropenia influence the risk of opportunistic fungal infections. Because Candida and Aspergillus species are the major causes of invasive fungal infections in neutropenic patients, the fungal section of the NCCN guidelines focus on these two pathogens. Effective prevention and therapy of invasive fungal pathogens is a priority in highly immunocompromised patients with cancer. Three strategies in preventing and treating patients at high risk for fungal infection will be considered: (1) prophylaxis; (2) empirical therapy; and (3) treatment for probable or proven fungal infection. In addition to more effective antifungal agents, growing interest has been noted in novel non-culture detection methods to facilitate early diagnosis of invasive fungal infections.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. e18008-e18008
Author(s):  
Shagufta Shaheen ◽  
Shivanck Upadhyay ◽  
Creticus Petrov Marak ◽  
Gagan Kumar ◽  
Achuta Kumar Guddati

e18008 Background: Invasive fungal infections are associated with higher mortality in hematopoietic stem cell transplant (HSCT) recipients despite the use of broad spectrum antifungal agents. With the increase in the number of patients undergoing HSCT and a newer array of immunosuppressants, it is necessary to examine the incidence and outcomes of fungal infection in this population. Methods: We used Nationwide Inpatient Sample from years 2000 to 2008 to examine the trends and outcomes of fungal infections in patients admitted for HSCT. We used ICD-9-CM codes to identify those with HSCT. Similarly we identified invasive fungal infection using ICD-9-CM codes. The engraftment period and subsequent admissions were examined separately. Outcomes studied were in-hospital mortality and length of hospital stay. Logistic regression analysis was used to identify independent association of fungal infection with mortality. The model was adjusted for demographic and hospital characteristics, Charlson's co-morbidity index and severity of sepsis using number of organ failures. Results: There were 291,182 admissions with HSCT from 2000 to 2008. Of these, 3.4% patients had invasive fungal infections. They were more frequent in allogenic transplant during the engraftment period (4.2%) and in those with graft versus host disease (GVHD) in subsequent admission (7.1%). The unadjusted in-hospital mortality was significantly higher in those with invasive fungal infection (28% vs. 7%, p<0.001). On adjusted analysis, the odds of mortality were highest for those with mucor (OR 4.3;95%CI 2.5-7.5) and aspergillus (OR 3.7; 95%CI 3.1-4.5) infections while the results did not reach significance for candidemia. The length of hospital stay was significantly longer in those with invasive fungal infections (median 19 days vs. 7 days, p<0.001). Conclusions: Fungal infections are common in HSCT recipients - especially in those with allografts and with GVHD. Mortality is high and is mostly associated with aspergillus and mucor. A higher index of suspicion for fungal infections in HSCT patients, strict isolation precautions and increased surveillance for aspergillus and mucor in HSCT patients may help decrease the length of hospital stay and mortality.


2021 ◽  
Vol 30 (3) ◽  
pp. 127-134
Author(s):  
Shaimaa A.S. Selem ◽  
Neveen A. Hassan ◽  
Mohamed Z. Abd El-Rahman ◽  
Doaa M. Abd El-Kareem

Background: In intensive care units, invasive fungal infections have become more common, particularly among immunocompromised patients. Early identification and starting the treatment of those patients with antifungal therapy is critical for preventing unnecessary use of toxic antifungal agents. Objective: The aim of this research is to determine which common fungi cause invasive fungal infection in immunocompromised patients, as well as their antifungal susceptibility patterns in vitro, in Assiut University Hospitals. Methodology: This was a hospital based descriptive study conducted on 120 patients with clinical suspicion of having fungal infections admitted at different Intensive Care Units (ICUs) at Assiut University Hospitals. Direct microscopic examination and inoculation on Sabouraud Dextrose Agar (SDA) were performed on the collected specimens. Isolated yeasts were classified using phenotypic methods such as chromogenic media (Brilliance Candida agar), germ tube examination, and the Vitek 2 system for certain isolates, while the identification of mould isolates was primarily based on macroscopic and microscopic characteristics. Moulds were tested in vitro for antifungal susceptibility using the disc diffusion, and yeast were tested using Vitek 2 device cards. Results: In this study, 100 out of 120 (83.3%) of the samples were positive for fungal infection. Candida and Aspergillus species were the most commonly isolated fungal pathogens. The isolates had the highest sensitivity to Amphotericin B (95 %), followed by Micafungin (94 %) in an in vitro sensitivity survey. Conclusion: Invasive fungal infections are a leading cause of morbidity and mortality in immunocompromised patients, with Candida albicans being the most frequently isolated yeast from various clinical specimens; however, the rise in resistance, especially to azoles, is a major concern.


2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Dânia Sofia Marques ◽  
Carlos Pinho Vaz ◽  
Rosa Branca ◽  
Fernando Campilho ◽  
Catarina Lamelas ◽  
...  

Hematopoietic stem-cell transplant recipients are at increased risk of developing invasive fungal infections. This is a major cause of morbidity and mortality. We report a case of a 17-year-old male patient diagnosed with severe idiopathic acquired aplastic anemia who developed fungal pneumonitis due toRhizomucor sp.and rhinoencephalitis due toScedosporium apiospermum6 and 8 months after undergoing allogeneic hematopoietic stem-cell transplant from an HLA-matched unrelated donor. Discussion highlights risk factors for invasive fungal infections (i.e., mucormycosis and scedosporiosis), its clinical features, and the factors that must be taken into account to successfully treat them (early diagnosis, correction of predisposing factors, aggressive surgical debridement, and antifungal and adjunctive therapies).


2015 ◽  
Vol 47 (4) ◽  
pp. 218-224 ◽  
Author(s):  
Tiffany Simms-Waldrip ◽  
Galit Rosen ◽  
Karin Nielsen-Saines ◽  
Alan Ikeda ◽  
Berkley Brown ◽  
...  

2021 ◽  
Vol 42 (03) ◽  
pp. 471-482
Author(s):  
Cassie C. Kennedy ◽  
Kelly M. Pennington ◽  
Elena Beam ◽  
Raymund R. Razonable

AbstractInvasive fungal infections threaten lung transplant outcomes with high associated morbidity and mortality. Pharmacologic prophylaxis may be key to prevent posttransplant invasive fungal infections, but cost, adverse effects, and absorption issues are barriers to effective prophylaxis. Trends in fungal infection diagnostic strategies utilize molecular diagnostic methodologies to complement traditional histopathology and culture techniques. While lung transplant recipients are susceptible to a variety of fungal pathogens, Candida spp. and Aspergillus spp. infections remain the most common. With emerging resistant organisms and multiple novel antifungal agents in the research pipeline, it is likely that treatment strategies will continue to evolve.


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