PCR-based detection of Aspergillus fumigatus and absence of azole resistance due to TR34 /L98H in a french multicenter cohort of 137 patients with fungal rhinosinusitis.
Mycoses
; 61(1): 30-34, 2018 Jan.
Article
em En
| MEDLINE
| ID: mdl-28922487
ABSTRACT
Fungal rhinosinusitis (FRS) has a worldwide distribution, comprises distinct clinical entities but is mostly due to Aspergillus among which Aspergillus fumigatus plays a major role in European countries. Although, there is accumulating evidence for the emergence of environmentally acquired-azole resistance in A. fumigatus (such as TR34 /L98H) in various clinical settings, there is few data for patients with FRS. In this study, we aimed to investigate the prevalence of A. fumigatus azole resistance due to TR34 /L98H in a multicentre cohort of patients with FRS. One hundred and thirty-seven patients with FRS admitted between 2002 and 2016 at four French medical centres were retrospectively enrolled. Clinical and mycological findings were collected. Aspergillus fumigatus and the TR34 /L98H alteration conferring azole resistance were investigated directly from clinical samples using the commercial CE-IVD marked MycoGENIE® A. fumigatus real-time PCR assay. Fungal ball was the more frequent clinical form (n = 118). Despite the presence of fungal hyphae at direct microscopic examination, mycological cultures remained negative for 83 out of the 137 patients (60.6%). The PCR assay proved to be useful allowing the identification of A. fumigatus and etiological diagnosis in 106 patients (77.4%) compared with 44 patients (32.1%) when using culture as the reference method. Importantly, neither TR34 nor L98H alterations were evidenced.
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MEDLINE
Assunto principal:
Aspergilose
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Aspergillus fumigatus
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Sinusite
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Azóis
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Rinite
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Farmacorresistência Fúngica
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article