A Blind Maneuver to Position an Endobronchial Blocker
|One Lung Ventilation Endobronchial Blocker Thoracic Surgery Fiberoptic Bronchoscopy||Procedure: endobronchial blocker|
|Study Design:||Observational Model: Case-Only
Time Perspective: Prospective
|Official Title:||A Blind Maneuver to Position an Endobronchial|
|Study Start Date:||June 2011|
|Study Completion Date:||February 2012|
|Primary Completion Date:||November 2011 (Final data collection date for primary outcome measure)|
Patients undergoing thoracic surgery in which one lung ventilation is needed.
Procedure: endobronchial blocker
After intubation of endotracheal tube, the Uniblocker® was inserted into the endotracheal tube and advanced step by step with inflation of the blocker balloon until the peak inspiratory pressure dropped abruptly.
The use of a fiberoptic bronchoscopy (FOB) appears to be fundamental to adjusting position of the bronchial blocker in the targeted mainstem bronchus. However, there can be occasions when a FOB is unavailable or inapplicable. Therefore, we will try to devise a blind method to locate the blocker without the aid of FOB in patients undergoing thoracic surgery.
After intubation of endotracheal tube (ETT), the Uniblocker® is inserted into the ETT and is advanced until the blocker balloon comes out of the ETT tip. At this time, the blocker balloon is inflated with air and the peak inspiratory pressure (PIP) will abruptly increase. And then, the blocker is rotated to the thoracotomy side and advanced to the carina step by step at 0.5 cm intervals. When the PIP drops abruptly, the blocker cuff is deflated completely and advanced to 3 cm further. The blocker cuff is inflated again. Using a FOB, the position of the blocker is recorded and we will evaluate the success rate of proper blocker position.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01364142
|Korea, Republic of|
|Seoul National University Hospital|
|Seoul, Korea, Republic of, 110-744|
|Study Chair:||Jae-Hyon Bahk, PhD, MD||Seoul National University Hospital|