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  • Title: Isolation of fungi by standard laboratory methods in patients with chronic rhinosinusitis.
    Author: Lebowitz RA, Waltzman MN, Jacobs JB, Pearlman A, Tierno PM.
    Journal: Laryngoscope; 2002 Dec; 112(12):2189-91. PubMed ID: 12461339.
    Abstract:
    OBJECTIVES/HYPOTHESIS: Allergic fungal sinusitis and the role of fungi in the pathogenesis of chronic rhinosinusitis are topics of interest and controversy in rhinology. The classification of chronic rhinosinusitis as either a bacterial infection or an allergic (eosinophilic) reaction to fungi has significant implications for treatment of this disease process. We designed a study to determine whether standard isolation techniques, as employed in a university hospital mycology laboratory, could isolate and identify fungi in the intraoperative specimens from patients undergoing functional endoscopic sinus surgery for chronic rhinosinusitis. STUDY DESIGN: Forty-five random patients with a diagnosis of chronic rhinosinusitis by clinical and computed tomography criteria underwent endoscopic sinus surgery during 2001, performed by two senior surgeons (J.B.J., R.A.L.). Specimens of mucin, sinus secretions, and/or tissue were obtained intraoperatively and sent to the New York University Medical Center (New York, NY) mycology laboratory for isolation and identification of fungi. METHODS: Specimens were treated with Sputolysin and chloramphenicol; plated on Sabouraud, ChromAgar/Candida, Mycosel, and Niger seed agar plates; and incubated at 30 degrees C (or 37 degrees C) for up to 1 month. RESULTS: We were able to demonstrate the presence of fungi in 56% of intraoperative specimens obtained from patients undergoing surgery for chronic rhinosinusitis. CONCLUSIONS: Using a standard hospital mycology laboratory protocol, which is relatively inexpensive and readily available, fungus can be isolated from a majority of patients undergoing functional endoscopic sinus surgery for chronic rhinosinusitis. Educational statement: Discuss the possible role of fungus in chronic rhinosinusitis and evaluate the efficacy of documenting the presence of fungus in a routine fashion to encourage clinically relevant directed treatments.)
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