A Blind Maneuver to Position an Endobronchial Blocker

One-lung ventilation can be provided by an endobronchial blocker. The Uniblocker® (Fuji Systems Corporation, Tokyo, Japan) was relatively recently introduced into clinical practice. We will try to devise a blind method to locate the Uniblocker® without the aid of fiberoptic bronchoscopy.

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Key information

Conditions

One Lung Ventilation Endobronchial Blocker Fiberoptic Bronchoscopy Thoracic Surgery

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Seoul National University Hospital

Seoul, 110-744, South Korea

About this study

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.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

patients undergoing thoracic surgery who need one lung ventilation

Exclusion criteria

patients who have a lesion in trachea or mainstem bronchi
severe tracheal deviation
patients who do not agree to informed consent

Treatment and study plan

endobronchial blocker

Procedure

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.

Sponsors and collaborators

Lead sponsor

Seoul National University Hospital

Other

Registry information

Official study title

A Blind Maneuver to Position an Endobronchial

Important dates

Study start: 2011
Primary completion: 2011
Study completion: 2012
First posted: Jun 2, 2011
Registry last updated: Jun 22, 2012

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed