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Diagnostic Performance and Safety of Bronchoalveolar Lavage in Thrombocytopenic Haematological Patients for Invasive Fungal Infections Diagnosis: A Monocentric, Retrospective Experience.

Abstract：

Background:Although bronchoalveolar lavage (BAL) measurements of galactomannan antigen (GM) seems to be more sensitive than serum testing to detect invasive fungal infection (IFI), a consensus on the most appropriate diagnostic threshold of the BAL GM test is still unclear. Moreover, there is uncertainty as to whether BAL is a safe procedure in patients with hematological malignancies (HM) and thrombocytopenia. Objectives:Based on this background, 102 adult patients with HM and associated thrombocytopenia were retrospectively analyzed with the dual aim of 1) determining whether BAL is a safe and feasible procedure; and, 2) identifying the most appropriate threshold for GM positivity in the diagnosis of IFI. Patients/Methods:each BAL was considered as one case/patient. One hundred twelve BALs were carried out in 102 HM patients: at the time of the BAL, the median platelet count (PLTs) in all patients was 47×109/L (1-476), and 31 patients (27%) had PLTs< 20×109/L. Results:complications from the BAL were infrequent (3.5%) and mild. No bleeding was reported. The BAL GM cut off of >0.8 was associated with the best diagnostic accuracy (sensitivity 72.97% and specificity 80%). Antifungal treatment of patients with BAL GM >0.8 resulted in a clinical-radiological improvement in 35/41 patients (85%). Conclusions:BAL was a safe procedure also in thrombocytopenic patients, permitting an IFI diagnosis not otherwise identifiable using EORTC/MSG criteria. Our data suggest that a BAL GM value of>0.8 represents the most useful cut-off in terms of sensibility and specificity. Further prospective studies on a more significant number of patients are needed to confirm these results.

journal_name

Mediterr J Hematol Infect Dis

journal_title

Mediterranean journal of hematology and infectious diseases

authors

Cefalo M,Puxeddu E,Sarmati L,Paterno G,Fontana C,Nasso D,Pane G,De Bellis E,Palmieri R,Buzzati E,Meconi F,Laureana R,Casciani P,Zizzari AG,Rogliani P,de Fabritiis P,Maurillo L,Buccisano F,Cantonetti M,Arcese W,Ven

doi

10.4084/MJHID.2019.065

subject

Has Abstract

pub_date

2019-11-01 00:00:00

pages

e2019065

issue

issn

2035-3006

pii

mjhid-11-1-e2019065

journal_volume

pub_type

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Diagnostic Performance and Safety of Bronchoalveolar Lavage in Thrombocytopenic Haematological Patients for Invasive Fungal Infections Diagnosis: A Monocentric, Retrospective Experience.