Diagnostic yield of endobronchial ultrasound-guided transbronchial needle aspiration for mediastinal staging in lung cancer
|Autor Principal:||Fernández-Bussy, SebastiánLabarca, GonzaloCanals, SofiaCaviedes, IvánFolch, ErikMajid, Adnan|
|Publicado em:||J. bras. pneumol.Jornal Brasileiro de Pneumologia|
|Link Texto Completo:||
|OBJECTIVE: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a minimally invasive diagnostic test with a high diagnostic yield for suspicious central pulmonary lesions and for mediastinal lymph node staging.The main objective of this study was to describe the diagnostic yield of EBUS-TBNA for mediastinal lymph node staging in patients with suspected lung cancer.METHODS: Prospective study of patients undergoing EBUS-TBNA for diagnosis.Patients ≥ 18 years of age were recruited between July of 2010 and August of 2013.We recorded demographic variables, radiological characteristics provided by axial CT of the chest, location of the lesion in the mediastinum as per the International Association for the Study of Lung Cancer classification, and definitive diagnostic result (EBUS with a diagnostic biopsy or a definitive diagnostic method).RESULTS: Our analysis included 354 biopsies, from 145 patients.Of those 145 patients, 54.48% were male.The mean age was 63.75 years.The mean lymph node size was 15.03 mm, and 90 lymph nodes were smaller than 10.0 mm.The EBUS-TBNA method showed a sensitivity of 91.17%, a specificity of 100.0%, and a negative predictive value of 92.9%.The most common histological diagnosis was adenocarcinoma.CONCLUSIONS: EBUS-TBNA is a diagnostic tool that yields satisfactory results in the staging of neoplastic mediastinal lesions.|
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