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Balloon Eustachian Tuboplast (BET)
ISRCTN ISRCTN02147658
ClinicalTrials.gov identifier
Public title Balloon Eustachian Tuboplast (BET)
Scientific title Effect of Balloon dilatation on Eustachian Tube dysfunction: a randomised controlled study
Acronym BET
Serial number at source N/A
Study hypothesis Long-term Eustachian tube dysfunction is associated with damage to the eardrum and middle-ear transformer mechanism. Symptoms of this are: muffled hearing, pain, a feeling of fullness in the ear. Tinnitus or dizziness may also occur.

Hypothesis:
Dilating the eustachian tube should improve its function and improve middle ear function thus reducing the incidence of diseases like glue ear etc
Lay summary Lay summary under review
Ethics approval Not provided at time of registration
Study design Randomised controlled study
Countries of recruitment United Kingdom
Disease/condition/study domain Long-term Eustachian tube dysfunction
Participants - inclusion criteria Patients with eustachian tube dysfunction identified in the clinic will be invited to participate
Participants - exclusion criteria 1. Children
2. Active nasal disease e.g. polyps, deviated septum
Anticipated start date 04/01/2012
Anticipated end date 04/01/2015
Status of trial Ongoing
Patient information material Not available in web format, please use the contact details below to request a patient information sheet
Target number of participants 200
Interventions Patients who has problems with both Eustachian tubewill be randomized to decide which side (right or left) to dilate. A tympanostomy tube(also known as a ventilation tube or grommet) will be inserted in the other ear.

A balloon catheter is introduced into the Eustachian tube via the nose, under transnasal endoscopic vision. Once the balloon is correctly positioned in the cartilaginous and bony portion of the Eustachian tube, it is filled with saline up to a pressure of about 10 bars. Pressure is maintained for approximately 2 minutes. The balloon is then emptied and removed
Primary outcome measure(s) Eustachian tube score (ear popping during swallowing and blowing the ears) at 1 to 2 week before dilatation and at 1 week, 1 month, 3 months, 6 months 12 months and 24 months after dilatation

Secondary outcome measure(s) 1. Pure tone audiometry
2. Tympanometry

Measured at 1 to 2 week before dilatation and at 1 week, 1 month, 3 months, 6 months, 12 months and 24 months after dilatation
Sources of funding North Bristol NHS trust (UK)
Trial website
Publications
Contact name Mrs  Adenike  Oluwasanmi
  Address ENT Department
Southmead Hospital
Westbury on Trym
  City/town Bristol
  Zip/Postcode BS10 5NB
  Country United Kingdom
  Tel +44(0)7985 544 850
  Fax +44(0)117 323 5850
  Email Adenike.Oluwasanmi@nbt.nhs.uk
Sponsor North Bristol NHS Trust (UK)
  Address ENT Department
Southmead Hospital
Westbury on Trym
  City/town Bristol
  Zip/Postcode BS10 5NB
  Country United Kingdom
  Tel +44 (0)117 950 5050
  Fax +44 (0)117 323 5850
  Email Adenike.Oluwasanmi@nbt.nhs.co.uk
  Sponsor website: http://www.nbt.nhs.uk
Date applied 02/12/2011
Last edited 04/01/2012
Date ISRCTN assigned 28/12/2011
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