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Trial registered on ANZCTR
Registration number
ACTRN12612000498897
Ethics application status
Approved
Date submitted
8/05/2012
Date registered
9/05/2012
Date last updated
9/05/2012
Type of registration
Retrospectively registered
Titles & IDs
Public title
Effects of operator experience and method in the inflation of endotracheal tube pilot balloon on cuff pressure
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Scientific title
Effects of operator experience and method in the inflation of endotracheal tube pilot balloon on cuff pressure in patients undergoing elective surgery in the supine position
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Secondary ID [1]
280451
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nil known
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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:
endotracheal tube cuff pressure
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Condition category
Condition code
Anaesthesiology
286680
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0
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Other anaesthesiology
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Respiratory
286681
286681
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0
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Normal development and function of the respiratory system
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
1)Operators were divided into following groups according to experiences:
Group T1 (n=50): Anesthesia technician with less (than two years) experience (5 operators)
Group T2 (n=50): Anesthesia technician with more (than two years) experience (5 operators)
Group A1 (n=50): Research assistant doctor with less (than three years) experience (5 operators)
Group A2 (n=50): Research assistant doctor with more (than three years) experience (5 operators)
2) After intubation, endotracheal tube cuff was inflated by two different methods, until the leakage sound was discontinuated or pilot balloon palpation by operators.
Each of the operator from these groups were to conduct the application on 10 patients, and endotracheal tube cuffs were inflated according to leakage sound in half of the patients (n=5) and pilot balloon palpation in the other half (n=5).
3) After endotracheal entubation, cuff was inflated immediately. cuff pressures were measured at the 5th and 60th minutes of endotracheal intubation and immediately before emergence from anesthesia
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Intervention code [1]
284811
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Other interventions
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Comparator / control treatment
Group S (n=50): Specialist doctor (5 operators)
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Control group
Active
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Outcomes
Primary outcome [1]
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endotracheal cuff pressure (via aneroid manometer)
In case the cuff pressure was above 30 cmH2O or below 20 cmH2O, the pressure was intervened to bring back to normal limits
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Assessment method [1]
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Timepoint [1]
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at the 5th and 60th minutes of endotracheal intubation, and immediately before emergence from anesthesia
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Secondary outcome [1]
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Postoperative complaint
(sore throat, hoarseness of voice, coughing, and dysphagia)
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Assessment method [1]
297333
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Timepoint [1]
297333
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at the PACU
at the postoperative 24th hour
(present/absent)
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Eligibility
Key inclusion criteria
16-60 years old,
ASA status I-III,
elective surgery in supine position,
endotracheal tube inner diameter 7 -8.5 mm,
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Minimum age
16
Years
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Maximum age
60
Years
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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
head-neck surgery,
urgent or difficult intubation,
an operation period less than 60 minutes,
endotracheal tube inner diameter less than 7 mm or more than 8.5 mm,
Mallampati score of III-IV,
high aspiration risk (full stomach, pregnancy),
diabetes mellitus, congenital, laryngotracheal and rheumatic diseases
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Study design
Purpose of the study
Educational / counselling / training
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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)
envelope method
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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?
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Intervention assignment
Parallel
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
Safety
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
1/04/2011
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Actual
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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
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Actual
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Sample size
Target
250
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Accrual to date
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Final
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Recruitment outside Australia
Country [1]
4291
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Turkey
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State/province [1]
4291
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Elazig
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Funding & Sponsors
Funding source category [1]
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Self funded/Unfunded
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Name [1]
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Address [1]
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Country [1]
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Primary sponsor type
Hospital
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Name
Firat University Hospital
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Address
Firat University Hospital Anesthesiology and Reanimation Department 23119 Elazig
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Country
Turkey
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
284083
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Country [1]
284083
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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Firat University Ethics Committee of Clinical Studies Conducted in Humans
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Ethics committee address [1]
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Firat University Ethics Committee Firat University Medicine Faculty 23119 Elazig
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Ethics committee country [1]
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Turkey
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Date submitted for ethics approval [1]
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07/02/2011
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Approval date [1]
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10/03/2011
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Ethics approval number [1]
287212
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Summary
Brief summary
Background: In this study, we planned to investigate the effects of operator experience and cuff pressure inflation method differences following endotracheal tube cuff pressure (ETCP) and complaints about it. Materials and methods: Two hundred fifty patients were planned general anesthesia included in this study. ETC was inflated by operators with distinct experience according to leakage or pilot balloon palpation techniques. ETCPs were measured by manometer at three periods as 5 and 60 minutes after endotracheal intubation, and before emergence. Complaints about it were recorded in post anesthetic care unit and postoperative 24th hour. Results: Though we found experience of operator had significant effect on the ETCP, we observed inflation methods hadn’t effect. But experienced operators also were found ETCP was higher than normal range. A correlation was observed between cuff pressure and operation duration with postoperative complaints. Conclusions: Our study concluded that used methods do not have an precede over one another, ETC inflated at normal pressure increases as operator’s experience increases but experience does not suffice alone in adjusting ETCP, a healthier method such as manometer should be used in routine applications instead of conventional methods, and CP and operation duration have correlations with some postoperative complaints.
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Trial website
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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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Ayse Belin OZER
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Address
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Firat University Medicine Faculty Anesthesiology and Reanimation Department 23119 Elazig
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Country
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Turkey
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Phone
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+90 424 2333555
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Fax
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+90 424 2388096
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Email
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[email protected]
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Contact person for scientific queries
Name
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Ayse Belin OZER
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Address
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Firat University Medicine Faculty Anesthesiology and Reanimation Department 23119 Elazig
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Country
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Turkey
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Phone
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+90 424 2333555
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Fax
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+90 424 2388096
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Email
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[email protected]
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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
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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