- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02331797
Endoscopic Overlay Tympanoplasty for TM Perforation
Endoscopic Overlay Tympanoplasty in Correcting Large Tympanic Membrane Perforation
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
A main part of tympanoplasty is repair of perforated tympanic membrane. There are two popular way to approach tympanic membrane, transcanal or postauricular approach. There are two grafting techniques are applied in tympanoplasty which includes the lateral technique (overlay) and medial technique (underlay).
The lateral technique is widely used in our institute which involves placement of a graft lateral to the tympanic annulus and the fibrous layer of the tympanic remnant. The most our preferred approach in previous experience is the postauricular approach for tympanoplasty because the transcanal approach is not enough for adequate exposure. Moreover, the visualization straight through transcanal provide by the microscope is difficult by a limited view of the perforation edge due to narrowing and curved external ear canal. Postauricular approach cause many layers of tissue are violated along with a significant postoperative pain.
The author proposed this study with the aim of determining the alleviation of postoperative pain by new technique and the efficacy of endoscope for tympanoplasty.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Songkhla
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Hat Yai, Songkhla, Thailand, 90110
- Songklanagarind Hospital
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age between 15-70 years
- The patients who had perforation of tympanic membrane
- The perforations are all dry at the time of surgery and have been dry for at least 3 months.
- No contraindication for local or general anesthesia.
- No recent upper respiratory tract infection at least 2 weeks before surgery.
- No unstable underlying condition.
- Have at least 2 months of follow up.
- Agree to participate in the study
- Aaccept to be randomized to receive treatment
- Willing to sign an informed consent
Exclusion Criteria:
- Medial placing or inlay surgical technique
- Chronic otitis media
- Contraindication of vasoconstriction agent (adrenaline)
- Allergy to analgesic agent (Xylocaine or Lidocaine)
- Concomitant with mastoiditis.
- Previous intracranial or extra-cranial complication of chronic otitis media.
- Pregnancy
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Endoscopic Technique
All patients are operated under the endoscope.
The endoscope passed through external auditory canal (transcanal approach) to visualize tympanic remnant.
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Endoscopic Technique; endoscopic transcanal lateral graft tympanoplasty using An endoscope (Karl Storz, Tuttlingen, Germany) and A microdrill (Skeeter Otologic Drill System; Medtronic Xom ed Surgical Products, Inc., Jacksonville, FL, USA)
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Active Comparator: Microscopic Technique
All patients are operated under the microscope.A postauricular or transcanal approach is chose depend on ear canal size and size of perforation.
When the ear canal is too small, the postauricular is used.
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Microsopic surgical approach using a Zeiss Opmi 111 (Carl Zeiss, Jena, Germany) operating microscope
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Postoperative pain score, evaluated by Visual analogue scale.
Time Frame: 24 hour postoperative.
|
Evaluate pain score by Visual analogue scale.
Patients are asked to score their pain on visual analogue scale at 4 hour, 24 hour and 48 hour postoperative.
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24 hour postoperative.
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Audiometric parameters
Time Frame: 20th week postoperative
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Evaluated by audiometry (pure tone average of air and bone conduction, air-bone gap.)
|
20th week postoperative
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The intactness of graft, evaluated by endoscopic visualization, and is catergorized as perforated or healed.
Time Frame: 20th week postoperative.
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The intactness of graft is evaluated by endoscopic visualization, and is catergorized as perforated or healed.
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20th week postoperative.
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Operative time
Time Frame: Begining to the end of surgery
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The actual operating time is recorded from beginning of local anesthetic injection to the end of the surgery (complete skin suturing).
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Begining to the end of surgery
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Yuvatiya Plodpai, MD, Prince of Songkla University
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- REC 57-0123-13-1
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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