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01-04-2021 | Bronchoscopy | INTERVENTIONAL PULMONOLOGY

Robotic-Assisted Navigation Bronchoscopy as a Paradigm Shift in Peripheral Lung Access

Authors: Bryan S. Benn, Arthur O. Romero, Mendy Lum, Ganesh Krishna

Published in: Lung | Issue 2/2021

Abstract

Introduction

The sensitivity of suspicious lung nodules biopsied by currently available techniques is suboptimal. Robotic-assisted navigation bronchoscopy (RANB) is a novel method for biopsying lung nodules. Our study objective was to determine the sensitivity for malignancy and overall diagnostic accuracy for RANB when combined with cone beam CT (CBCT) for secondary confirmation.

Methods

52 consecutive patients were prospectively enrolled. Demographic data, nodule characteristics, procedural information, and follow-up results were obtained.

Results

Mean patient age was 66, with the majority Caucasian (73%) females (65%) with a similar number of never (46%) and former (46%) smokers. 15 patients had a history of cancer and 3 had a prior thoracic surgery. 59 total nodules were included as 7 patients had two nodules biopsied. Mean nodule diameter was < 2 cm in all dimension with the majority solid (41, 70%) and located in the upper lobes (left: 22, 37%; right: 17, 29%). Bronchus sign was absent (32, 54%) or present (27, 46%) in a similar number. All nodules were successfully reached with nine (15%) requiring minor directional changes after initial cone beam CT. A tissue diagnosis was obtained in 83% (49/59) of biopsied nodules, with malignancy (31, 65%) most common. Including all biopsy results and follow-up imaging, we obtained an 84% (31/37) procedural sensitivity for malignancy and an overall 86% (51/59) diagnostic yield.

Conclusion

RANB with CBCT increases sensitivity for malignancy and diagnostic accuracy of lung nodule biopsies. Combining these modalities has the potential to shift the diagnostic approach to pulmonary nodules.

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Title: Robotic-Assisted Navigation Bronchoscopy as a Paradigm Shift in Peripheral Lung Access
Authors: Bryan S. Benn
Arthur O. Romero
Mendy Lum
Ganesh Krishna
Publication date: 01-04-2021
Publisher: Springer US
Keywords: Bronchoscopy
Lung Cancer
Lung Cancer
Pulmonary Nodule
Digital Volume Tomography
Digital Volume Tomography
Lung Cancer
Published in: Lung / Issue 2/2021
Print ISSN: 0341-2040
Electronic ISSN: 1432-1750
DOI: https://doi.org/10.1007/s00408-021-00421-1

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