A Blind Maneuver to Position an Endobronchial Blocker

June 20, 2012 updated by: Jae-Hyon Bahk, Seoul National University Hospital

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

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.

Study Type

Observational

Enrollment (Actual)

56

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Korea, Republic of
      • Seoul, Korea, Republic of, 110-744
        • Seoul National University Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

patients undergoing thoracic surgery

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
thoracic surgery
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.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Seoul National University Hospital

Investigators

  • Study Chair: Jae-Hyon Bahk, PhD, MD, Seoul National University Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2011

Primary Completion (Actual)

November 1, 2011

Study Completion (Actual)

February 1, 2012

Study Registration Dates

First Submitted

May 31, 2011

First Submitted That Met QC Criteria

May 31, 2011

First Posted (Estimate)

June 2, 2011

Study Record Updates

Last Update Posted (Estimate)

June 22, 2012

Last Update Submitted That Met QC Criteria

June 20, 2012

Last Verified

June 1, 2012

More Information

Terms related to this study

Other Study ID Numbers

  • JHBahk_bronchial blocker

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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