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A Blind Maneuver to Position an Endobronchial Blocker

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Jae-Hyon Bahk, Seoul National University Hospital
ClinicalTrials.gov Identifier:
NCT01364142
First received: May 31, 2011
Last updated: June 20, 2012
Last verified: June 2012

May 31, 2011
June 20, 2012
June 2011
November 2011   (final data collection date for primary outcome measure)
Not Provided
Not Provided
Complete list of historical versions of study NCT01364142 on ClinicalTrials.gov Archive Site
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A Blind Maneuver to Position an Endobronchial Blocker
A Blind Maneuver to Position an Endobronchial

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.

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.

Observational
Observational Model: Case-Only
Time Perspective: Prospective
Not Provided
Not Provided
Probability Sample

patients undergoing thoracic surgery

  • One Lung Ventilation
  • Endobronchial Blocker
  • Thoracic Surgery
  • Fiberoptic Bronchoscopy
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.
thoracic surgery
Patients undergoing thoracic surgery in which one lung ventilation is needed.
Intervention: Procedure: endobronchial blocker
Hong DM, Seo JH, Chang Kim H, Nam K, Bahk JH. A novel maneuver to blindly position bronchial blockers. Minerva Anestesiol. 2013 Oct;79(10):1126-31. Epub 2013 May 29.

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
56
February 2012
November 2011   (final data collection date for primary outcome measure)

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
Both
18 Years to 80 Years
No
Contact information is only displayed when the study is recruiting subjects
Korea, Republic of
 
NCT01364142
JHBahk_bronchial blocker
No
Jae-Hyon Bahk, Seoul National University Hospital
Seoul National University Hospital
Not Provided
Study Chair: Jae-Hyon Bahk, PhD, MD Seoul National University Hospital
Seoul National University Hospital
June 2012

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP