How is the patient prepped for endobronchial ultrasound (EBUS)?

Updated: Apr 24, 2019
  • Author: Narayan Neupane, MD; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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The monitoring devices are placed on the patient, supplemental oxygen is administered by nasal cannula, and intravenous access is established before starting the procedure. The patient's eyes should be covered so as to prevent splashing of normal saline, secretions, or blood into the eyes. Conventional bronchoscopy with a working channel of at least 2.8 mm is required for RP-EBUS. When the bronchoscope is in the airway and around the target lesion, the radial probe is placed in a catheter sheath and inserted through the working channel of the bronchoscope. The probe is positioned at the target level, and the balloon is filled with water until it has achieved firm contact with the airway. A complete circular image of the airway wall and surrounding structures is obtained once the balloon has firm contact with the airway wall. RP-EBUS provides a 360-degree image of the airway wall and its surrounding structures.

If the patient is unable to tolerate complete obstruction of the airway, the balloon can be partially filled and applied to the airway wall in a semicircular manner.

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