Thin and Ultrathin Bronchoscopy With Transbronchial Needle Aspiration and Radial Probe Endobronchial Ultrasound for Peripheral Pulmonary Lesions

  • End date
    Apr 30, 2024
  • participants needed
  • sponsor
    Washington University School of Medicine
Updated on 26 March 2022


A limitation of current approaches to peripheral lesions may be the caliber of bronchoscope used to reach them. As peripheral airways taper further in size, the ability of the bronchoscopist to approximate peripheral lesions diminishes using conventionally sized bronchoscopes of 5 or 4mm in outer diameter. Because of this limitation, the bronchoscopist may be unable to cannulate peripheral airways that lead directly to targeted lesions, thereby significantly compromising the diagnostic yield of the procedure. Ultrathin bronchoscopy utilizing bronchoscopes of 3mm in outer diameter may allow bronchoscopists better access to the lung periphery, thereby allowing access to peripheral airways that may lead directly into targeted lesions, resulting in a concentric anatomical position, where diagnostic yields may be improved.

Condition Peripheral Pulmonary Nodules
Treatment BF-P190 4 mm thin bronchoscope, BF-MP190F 3 mm ultrathin bronchoscope, Radial ultrasound probe (UM S20-17S), PeriView FLEX 21G Single Use Aspiration Needle
Clinical Study IdentifierNCT04331587
SponsorWashington University School of Medicine
Last Modified on26 March 2022


Yes No Not Sure

Inclusion Criteria

Patients age 18 and older
Patients presenting with peripheral pulmonary lesions 1-7cm in greatest diameter on axial CT or PET scan in need of bronchoscopic biopsy for clinical purposes

Exclusion Criteria

Patients who are unable to undergo flexible bronchoscopy as determined by the bronchoscopist prior to the procedure
Patients unwilling or unable to provide informed consent
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