Leakage of fluid around the bronchial cuffs of double lumen endobronchial tubes (DLEBT)

ISRCTN ISRCTN55322156
DOI https://doi.org/10.1186/ISRCTN55322156
Secondary identifying numbers N0054131773
Submission date
30/09/2004
Registration date
30/09/2004
Last edited
07/01/2009
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Surgery
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr P Sanjay
Scientific

Department of Anaesthesia
The Cardiothoracic Centre
Liverpool NHS Trust
Thomas Drive
Liverpool
L14 3PE
United Kingdom

Phone +44 (0)151 228 1616

Study information

Study designProspective randomised double blind trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Not specified
Study typeNot Specified
Scientific title
Study objectivesTo determine the incidence of fluid leakage past the bronchial cuff of double lumen endobronchial tubes and to investigate the effectiveness of gel lubrication in reducing fluid leakage past the bronchial cuff. Demonstration by fibreoptic bronchoscopy of dye leakage past the bronchial cuff of double lumen endobronchial tubes placed in patients undergoing right sided thoracic procedure in the lateral position.

An aspiration rate of 44% has been shown in patients receiving unlubricated double lumen endobronchial tubes. We consider a clinically important reduction would be a reduction of 50%. Assuming a baseline aspiration rate of 44%, a sample size of 55 per group will provide a study of 80% power to detect this difference with a 5% chance of error (one tailed). 55 patients per group, plus 5 per group to allow for data corruption i.e. (55+5) x 2 = 120 patients in total.
Ethics approval(s)Not provided at time of registration
Health condition(s) or problem(s) studiedSurgery: Thoracic
InterventionAdult patients scheduled to undergo a right thoracic procedure involving lung isolation will be randomly assigned to one of two groups.
One group will receive an unlubricated DLEBT and the other group will receive a DLEBT liberally lubricated with aqueous jelly. A left sided DLEBT will be used for a right sided procedure.
After placing the patients in a lateral position and confirming correct placement of the DLEBT with a fibreoptic bronchoscope, both groups will receive 10 mg (1 ml) of methylthionium chloride (methylene blue) made up to 5 ml with normal saline placed above the bronchial cuff via an epidural catheter. At 30-minute intervals during the procedure and immediately prior to extubation, the endobronchial lumen will be aspirated and the aspirates examined by a blinded observer for staining. The same observer will then utilise a fibreoptic bronchoscope to examine the bronchial mucosa for blue staining.
Intervention typeProcedure/Surgery
Primary outcome measureSome patients develop acute respiratory distress syndrome (ARDS) after an uneventful pneumonectomy a condition termed post-pneumonectomy syndrome. The pathogenesis of this syndrome is poorly understood. An increase in hydrostatic pressure after lung removal is unlikely to be the sole cause in the majority of patients. Aspiration of infected material or gastric acid past the endobronchial cuff of an endobronchial tube may be a significant factor in the development of this syndrome. This study will demonstrate by fibreoptic bronchoscopy of dye leakage past the bronchial cuff of double lumen endobronchial tubes placed in patients undergoing right sided thoracic procedure in the lateral position.
Secondary outcome measuresNot provided at time of registration
Overall study start date01/11/2003
Completion date31/05/2004

Eligibility

Participant type(s)Patient
Age groupAdult
SexNot Specified
Target number of participants55 patients per group, plus 5 per group to allow for data corruption i.e. (55+5) x 2 = 120 patients in total.
Key inclusion criteriaAdult patients undergoing thoracotomy or thoracoscopy.
Key exclusion criteriaNot provided at time of registration
Date of first enrolment01/11/2003
Date of final enrolment31/05/2004

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Department of Anaesthesia
Liverpool
L14 3PE
United Kingdom

Sponsor information

Department of Health
Government

Richmond House
79 Whitehall
London
SW1A 2NL
United Kingdom

Website http://www.dh.gov.uk/Home/fs/en

Funders

Funder type

Government

The Cardiothoracic Centre Liverpool NHS Trust (UK)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/02/2006 Yes No