Usefulness of Conventional Transbronchial Needle Aspiration for Sampling of Mediastinal Lymph Nodes in Lung Cancer

Journal of Bronchology & Interventional Pulmonology
Leonello FusoRiccardo Inchingolo

Abstract

Transbronchial needle aspiration (TBNA) is recognized as a valuable tool for the sampling of mediastinal lymph nodes. In this study, we report data about the diagnostic yield of conventional TBNA in the diagnosis and staging of lung cancer. All patients with suspected lung cancer who underwent bronchoscopy with conventional TBNA in the years 2008 to 2012 were evaluated. TBNA was performed on mediastinal lymph nodes enlarged at chest computed tomography scan and/or with increased fluorodeoxyglucose uptake on positron emission tomography/computed tomography scan. Cytologic results derived from TBNA have been compared, with the final diagnosis obtained with other more invasive procedures and/or with a clinical-radiologic follow-up of at least 12 months. TBNA was performed on 375 patients. However, 19 patients were lost to follow-up, and data from 356 patients with a total 459 TBNA specimens were analyzed. TBNA was positive for metastatic involvement of lymph nodes in 172 of 282 patients with cancer, with a sensitivity of 61%. Sensitivity achieved 65% when we considered the total of 459 TBNA specimens. The overall diagnostic accuracy of TBNA was 69%. The nodal stations more frequently examined were 7 (subcarinal: 190 TBNAs), 4R (ri...Continue Reading

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