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Bronchoalveolar lavage galactomannan in diagnosis of invasive pulmonary aspergillosis among solid-organ transplant recipients Clancy CJ; Jaber RA; Leather HL; Wingard JR; Staley B; Wheat LJ; Cline CL; Rand KH; Schain D; Baz M; Nguyen MHJ Clin Microbiol 2007[Jun]; 45 (6): 1759-65We review the experience at our institution with galactomannan (GM) testing of bronchoalveolar lavage (BAL) fluid in the diagnosis of invasive pulmonary aspergillosis (IPA) among solid-organ transplant recipients. Among 81 patients for whom BAL GM testing was ordered (heart, 24; kidney, 22; liver, 19; lung, 16), there were five cases of proven or probable IPA. All five patients had BAL GM of > or = 2.1 and survived following antifungal therapy. The sensitivity, specificity, and positive and negative predictive values for BAL GM testing at a cutoff of > or = 1.0 were 100%, 90.8%, 41.7%, and 100%, respectively. The sensitivity of BAL GM testing was better than that of conventional tests such as serum GM or BAL cytology and culture. Moreover, a positive BAL GM test diagnosed IPA several days to 4 weeks before other methods for three patients. Twelve patients had BAL GM of > or = 0.5 but no evidence of IPA. Among these, lung transplant recipients accounted for 41.7% (5/12) of the false-positive results, reflecting frequent colonization of airways in this population. Excluding lung transplants, the specificity and positive predictive value for other solid-organ transplants increased to 92.9% and 62.5%, respectively (cutoff, > or = 1.0). In conclusion, BAL GM testing facilitated more-rapid diagnoses of IPA and the institution of antifungal therapy among non-lung solid-organ transplant recipients and helped to rule out IPA.|Adolescent[MESH]|Adult[MESH]|Aged[MESH]|Aspergillosis/*diagnosis/microbiology[MESH]|Bronchoalveolar Lavage Fluid/*chemistry[MESH]|Child[MESH]|Child, Preschool[MESH]|Female[MESH]|Galactose/analogs & derivatives[MESH]|Humans[MESH]|Lung Diseases, Fungal/*diagnosis/microbiology[MESH]|Male[MESH]|Mannans/*analysis[MESH]|Middle Aged[MESH]|Organ Transplantation/*adverse effects[MESH]|Predictive Value of Tests[MESH]|Sensitivity and Specificity[MESH] |
