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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT01366274
Registration number
NCT01366274
Ethics application status
Date submitted
31/05/2011
Date registered
6/06/2011
Date last updated
6/06/2011
Titles & IDs
Public title
Protective Manual Hyperinflation in Acute Mechanically Ventilated Trauma Patients
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Scientific title
Comparison of Protective Manual Hyperinflation With Current Methods in Ventilated Acute Trauma Patients: a Randomized Controlled Trial
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Secondary ID [1]
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PMH1
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Critically Injured Mechanically Ventilated Trauma Patients
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Condition category
Condition code
Skin
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Other skin conditions
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Other interventions - Protective manual hyperinflation
Other interventions - Usual method of MHI
Active comparator: Usual method of MHI -
Experimental: Protective MHI -
Other interventions: Protective manual hyperinflation
Manual hyperinflation for 10 minutes using a Mapleson C circuit and 100% oxygen with volume set at 8mls/kg and positive end expiratory pressure in the circuit appropriate to baseline levels
Other interventions: Usual method of MHI
Manual hyperinflation for 10 minutes using a Mapleson C circuit and 100% oxygen with volume set at 12mls/kg and no positive end expiratory pressure in the circuit
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Intervention code [1]
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Other interventions
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Interleukin 6
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Assessment method [1]
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5 mls of arterial blood will be colected in an EDTA tube, centrifuged and aliquoted within 30 minutes. It will be stored at -80 degrees C and the analysis completed in batches by enzyme linked immunosorbent assay
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Timepoint [1]
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Change between Baseline and 40 minutes and 70 minutes post baseline
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Secondary outcome [1]
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Tumour necrosis factor alpha
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Assessment method [1]
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5 mls of arterial blood will be colected in an EDTA tube, centrifuged and aliquoted within 30 minutes. It will be stored at -80 degrees C and the analysis completed in batches by enzyme linked immunosorbent assay
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Timepoint [1]
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Change from Baseline to 40 minutes and 70 minutes post baseline
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Secondary outcome [2]
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Interleukin 1-beta
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Assessment method [2]
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5 mls of arterial blood will be colected in an EDTA tube, centrifuged and aliquoted within 30 minutes. It will be stored at -80 degrees C and the analysis completed in batches by enzyme linked immunosorbent assay
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Timepoint [2]
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Change between baseline and 40 minutes and 70 minutes post baseline
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Secondary outcome [3]
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Interleukin 8
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Assessment method [3]
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5 mls of arterial blood will be colected in an EDTA tube, centrifuged and aliquoted within 30 minutes. It will be stored at -80 degrees C and the analysis completed in batches by enzyme linked immunosorbent assay
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Timepoint [3]
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Change between baseline and 40 minutes and 70 minutes post baseline
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Secondary outcome [4]
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PaO2/FiO2 Oxygenation ratio
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Assessment method [4]
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The ratio between the partial pressure of oxygen in arterial blood and the fraction of inspired oxygen which is delivered to the patient.
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Timepoint [4]
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Chnge between baseline and 15 minutes and 40 minutes post baseline
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Secondary outcome [5]
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Static lung compliance
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Assessment method [5]
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Static lung compliance is the change in volume for any given applied pressure. The formula is Compliance = Change in volume/change in pleural pressure.
An inspiratory hold will be dialled on the mechanical ventilator and the static lung compliance value will be recorded from the screen.
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Timepoint [5]
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Change between Baseline and 15 minutes and 70 minutes post baseline
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Secondary outcome [6]
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Mean arterial blood pressure
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Assessment method [6]
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The mean blood pressure will be recorded from the arterial catheter in situ. This is displayed continuously on the Phillips Intellivue Monitor and will be recorded for the time of intervention
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Timepoint [6]
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the change between baseline and every minute during intervention for 10 minutes will be compared
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Secondary outcome [7]
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Sputum volume
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Assessment method [7]
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Sputum will be suctioned at the end of the manual hyperinflation technique by an inline suction catheter using sterile technique into a closed sample jar. This will be weighed on an Acculab Pocket Scale PP401
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Timepoint [7]
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Immediately at end of intervention
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Eligibility
Key inclusion criteria
* Trauma patients
* Day 1 of admission to intensive care
* Mechanically ventilated
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
* Pre-existing lung disease
* PEEP > 12.5cmH20
* Nitric oxide in circuit
* Haemodynamically unstable
* Undrained pneumothorax
* Intracranial pressure > 25mmHg
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people assessing the outcomes
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Intervention assignment
Parallel
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Other design features
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Phase
NA
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
UNKNOWN
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/09/2007
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
1/12/2011
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Actual
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Sample size
Target
40
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
QLD
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Recruitment hospital [1]
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Royal Brisbane & Womens Hospital - Brisbane
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Recruitment postcode(s) [1]
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4029 - Brisbane
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Funding & Sponsors
Primary sponsor type
Other
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Name
The University of Queensland
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Address
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Country
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Other collaborator category [1]
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Government body
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Name [1]
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Royal Brisbane and Women's Hospital
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Address [1]
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Country [1]
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Ethics approval
Ethics application status
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Summary
Brief summary
This single-blinded randomized study aims to compare two methods of manual hyperinflation (protective - moderate tidal volumes with positive end expiratory pressure) and non-protective (large tidal volume and no positive end expiratory pressure) in ventilated acute trauma patients, to investigate the effect on inflammatory markers, lung compliance, oxygenation and sputum volume.
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Trial website
https://clinicaltrials.gov/study/NCT01366274
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for scientific queries
No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT01366274
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