4.4 Article

Radial-EBUS and virtual bronchoscopy planner for peripheral lung cancer diagnosis: How it became the first-line endoscopic procedure

Journal

THORACIC CANCER
Volume 13, Issue 20, Pages 2854-2860

Publisher

WILEY
DOI: 10.1111/1759-7714.14629

Keywords

bronchoscopy; lung cancer; peripheral pulmonary nodule; radial endobronchial ultrasound; virtual bronchoscopy planner

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This study evaluated the standardized procedure of first-line radial-endobronchial ultrasound (r-EBUS) and virtual bronchoscopy planner for the diagnosis of peripheral lung cancer. The results showed that r-EBUS and VB planner can be used as a first-line procedure to assess peripheral lung cancer due to its ease of perform, cost-effectiveness, and efficiency.
Background Various advanced bronchoscopy methods have been developed to reach peripheral lung lesions (PLL). In a large cohort, we aimed to assess a standardized procedure of first-line radial-endobronchial ultrasound (r-EBUS) and virtual bronchoscopy planner for the diagnosis of peripheral lung cancer. Methods This retrospective, single center study included patients who had r-EBUS-guided bronchoscopy for the diagnosis of a PLL between 2008 and 2019. Cases without a final diagnosis of cancer or follow-up were excluded. Results Between 2008 and 2019, 2735 patients had a r-EBUS procedure, among whom 1627 had a final diagnosis of cancer and were included in the present study. Over the 12-year study period, r-EBUS became the first-line endoscopic procedure to assess PLL (25% as first-line bronchoscopy in 2008 vs. 92% in 2019). The frequency of the bronchus sign decreased from 2009 to 2019 (100% to 80%; p = 0.001), whereas US visualization of the lesion remained stable (88%). The median number of biopsies increased from two (2008 to 2014) to four (2015 to 2019) (p < 0.0001), with the same diagnostic efficiency (74% total and 80% when a bronchus sign was present). Of the 651 adenocarcinomas, molecular analysis was possible in 86%. PD-L1 expression analysis was possible in 81% of cases. During the study period, the lifetime of the radial probe increased from 57 procedures to 77 procedures/probe. Conclusion Because r-EBUS and VB planner is easy to perform under local anesthesia, inexpensive and efficient it can be used as a first-line procedure to assess peripheral lung cancer.

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