Endobronchial Ultrasound

Abstract

Endobronchial ultrasound (EBUS) has emerged as a routinely performed procedure in diagnostic bronchoscopy. Extending the view beyond the airway wall, EBUS provides evaluation of tumor involvement of tracheobronchial wall and mediastinum and plays an essential role as a guidance technique for peripheral pulmonary diseases. The latest development is the EBUS-transbronchial needle aspiration (TBNA) scope that allows performing real-time EBUS-TBNA of enlargerd hilar and mediastinal lymph nodes.

Yield of new versus reused endobronchial ultrasound-guided transbronchial needle aspiration needles: A retrospective analysis of 500 patients

“…[ 3 4 5 6 7 ] The procedure requires a dedicated TBNA needle for the purpose of aspirating material from the lymph nodes visualized in real time. [ 8 ] A proprietary EBUS-TBNA needle designed for use with the respective echobronchoscopes is recommended by the manufacturers. Further, these needles are recommended for a single time use only.…”

Unique application of awake tracheoscopy and endobronchial ultrasound in the management of tracheal mucoepidermoid carcinoma

“…Radial‐probe endobronchial ultrasound can characterize lumen wall invasion, and when combined with esophageal ultrasound, it can also identify mediastinal lymph node involvement with high sensitivity. Several studies have affirmed the use of radial‐probe‐endobronchial ultrasound in the evaluation of external tracheobronchial invasion from esophageal and thyroid cancers; the sensitivity and specificity of endobronchial ultrasound exceeds that of bronchoscopy, esophageal ultrasound, CT, and MRI . After initial palliative resection, we utilized this imaging modality for evaluation of invasion in the outward direction (from within the trachea to the outer tracheal wall).…”

Developments in Diagnostic and Interventional Procedures in Lung Cancer

“…EBUS similarly to the flexible fiberoptic bronchoscopy are composed of glass fibers, which transmit the light and the images and a working channel allowing for the suctioning, and introduction of the biopsy instruments but have 35o rather than direct visualization angle. An EBUS has an ultrasound probe, which allows real time visualization and biopsy of the lymph nodes using a 21 or 22-gauge needle with recommendation that each lymph node should be sampled 1 to 3 times and on each occasion 10 to 15 needle passes should be undertaken [6]. The current guidelines suggest that 40 to 50 procedures are required to be undertaken before proficiency in EBUS can be achieved with simulation-based training similarly to learning bronchoscopy showing to speed up learning [7][8][9].…”