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Journal of Thoracic Oncology:
doi: 10.1097/JTO.0000000000000085
Original Articles

EBUS-TBNA in Elderly Patients with Lung Cancer: Safety and Performance Outcomes

Evison, Matthew MRCP*; Crosbie, Philip A. J. PhD, MRCP*†; Martin, Julie*; Bishop, Paul FRCPath; Doran, Helen FRCPath; Joseph, Leena FRCPath; Chaturvedi, Anshuman MD, FRCPath; Barber, Philip V. FRCP*; Booton, Richard PhD, FRCP*†

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Background: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) enables minimally invasive lymph node sampling during bronchoscopy under conscious sedation. The primary purpose of this study was to investigate the safety profile of EBUS-TBNA in an elderly population. The secondary aim was to assess the efficacy of EBUS-TBNA for nodal staging and pathological diagnosis in elderly patients with primary lung cancer.

Methods: This was a prospective cohort study of patients undergoing EBUS-TBNA, between March 2010 and August 2012, at a single U.K. hospital site. Procedure and outcome data including 6-month follow-up were collected prospectively. Patients were divided into less than 70 (<70yrs) or 70 and older (≥70yrs) age categories for analysis.

Results: Four hundred and fifty-one patients underwent EBUS-TBNA during the study period. Mean age of the patients was 66.9 ± 11.9 years, 43.9% (n=198) of them were aged ≥70yrs. Older patients (≥70yrs) had a worse performance status (p=0.0001) and required significantly lower levels of sedation (p<0.000001) but had similar overall complication rates (<70yrs 8.7% versus ≥70yrs 5.1%; p=0.13) and tolerated the procedure better than younger patients (p=0.036). Sensitivity (92.9% versus 86.4%; p=0.12) was equivalent, but negative predictive value (91.8% versus 73.9%; p=0.001) and diagnostic accuracy (96.0% versus 90.2%; p=0.02) of nodal sampling in patients with confirmed or suspected lung cancer (n=273) was higher in the ≥70yrs cohort (n=131, 48.0%). However, the prevalence of nodal malignancy was significantly different between the two groups as was the proportion of patients subject to surgical lymph node sampling after negative EBUS-TBNA. EBUS-TBNA samples produced low non–small-cell lung cancer–not otherwise specified rates (6.9%) and high levels of successful epidermal growth factor receptor mutation analysis (97.5%) irrespective of age category.

Conclusion: EBUS is a safe and well-tolerated procedure in elderly patients, which facilitates accurate pathological diagnosis and minimally invasive staging in patients with lung cancer.

Copyright © 2014 by the European Lung Cancer Conference and the International Association for the Study of Lung Cancer.


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