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Sadia Benzaquen

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    MA13 - Interventional Pulmonology (ID 914)

    • Event: WCLC 2018
    • Type: Mini Oral Abstract Session
    • Track: Interventional Diagnostics/Pulmonology
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/25/2018, 10:30 - 12:00, Room 206 AC
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      MA13.09 - Electromagnetic Navigation Bronchoscopy as an Integrated Approach to Aid in Diagnosis and Treatment of Pulmonary Lesions (ID 12623)

      11:30 - 11:35  |  Author(s): Sadia Benzaquen

      • Abstract
      • Presentation
      • Slides


      Electromagnetic navigation bronchoscopy (ENB) is an image-guided localization approach to guide endoscopic tools to lung targets. In a single procedure, ENB aids in localizing lung lesions for biopsy or molecular profiling, fiducial placement for stereotactic body radiation therapy (SBRT), or dye marking for surgical resection. The multidisciplinary utility of ENB in a large, prospective, multicenter study is unknown.

      a9ded1e5ce5d75814730bb4caaf49419 Method

      NAVIGATE (, NCT02410837) is a prospective, multicenter, observational cohort study of ENB using the superDimension™ navigation system. From April 2015 to August 2016, 1,215 consecutive subjects were enrolled at 29 United States sites. Two-year follow-up is ongoing. A prespecified 1-year interim analysis is presented.

      4c3880bb027f159e801041b1021e88e8 Result

      ENB was used to aid in lung lesion biopsy (n=1157 subjects), fiducial placement (n=258), pleural dye marking (n=23), and/or lymph node biopsy (n=30). EBUS-guided lymph node staging was conducted in the same procedure in 448 subjects. The median lesion-to-pleura distance was 9mm. The median lesion size was 20mm; most were in the middle (30%) and peripheral (67%) thirds of the lung. Pathology results were malignant in 44.3% (484/1092) (54.1% Stage I, 11.1% Stage II, 17.0% Stage III, 17.7% Stage IV). Molecular testing was attempted in 30.7% (80/261) of adenocarcinoma or NSCLC-not-otherwise-specified cases overall and 57.9% (33/57) of Stage IIIB/IV cases. Tissue was adequate in 87.5% (70/80) of cases. EGFR mutations (14.7%) and ALK translocations (4%) were the most frequently observed genetic alterations. The ENB procedure was well-tolerated; 2.9% of subjects had procedure-related pneumothorax requiring hospitalization or intervention, lower than published rates for CT-guided core biopsy (25%) and CT-guided fine needle aspiration (19%). Subject-reported impact of ENB on daily activities was 0.9 out of 10 (0 = no impact).

      8eea62084ca7e541d918e823422bd82e Conclusion

      In the largest prospective, multicenter study to date, ENB aided in lesion biopsy in the middle and periphery of the lung and tissue collection for molecular testing, with a very low morbidity. ENB facilitates a multidimensional approach to lung biopsy and mediastinal/hilar staging, offering the opportunity for multiple sites/tissues to be safely sampled in one anesthetic event.


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