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Paper Information

Journal:   KOOMESH   Winter 2001 , Volume 2 , Number 2; Page(s) 89 To 93.
 
Paper: 

DIFFERENT SITES OF TYMPANOSTOMY TUBES INSERTION DO NOT INFLUENCE THEIR EXTRUSION RATE

 
 
Author(s):  MOGHADASI H.A.D.*, VAZIR NEZAMI M.
 
* Dept. of ENT., Loghman Hospital, Shahid Beheshti University of Medical Siences, Tehran, Iran
 
Abstract: 

Introduction: One of the most important difficulties in patients requiring myringotomy and tympanostomy tube insertion is rapid extrusion of the tube. The aim of this study was to compare extrysion rate of tympanostomy tubes in anterosuperior quadrant (ASQ) to those placed in the anteroinferior quadrant (AIQ).

Material and Methods: In a sequential control clinical trial on 35 patients with bilateral chronic otitis media with effusion, using subjects as their own control, in each case, tympanostomy tubes (similar tubes) were placed in ASQ in the right and in AIQ in the left ears. Extrusion rates of both ears in each case were compared.

Results: the results indicate that duration (mean ±SEM) of extrusion in the ASQ VS AIQ were 228.4±69.4 days and 221.7±59.1 days, respectively, which there was no significant difference between the two conditions.

Conclusion: From the foregoing results it may be reduced that, as far as extrusion is concerned, it is of no consequence whether the tube is inserted in which quadrant.

We conclude that the location of a myringotomy for insertion of a tympanostomy tube should not be determined on expected increased duration of action. Different tube designs should be considered when prolonged middle ear ventilation is desired.

 

 

 

 
Keyword(s): CHRONIC OTITIS MEDIA WITH EFFUSION, EXTRUSION RATE,TY-MPANOSTOMY TUBES, ANTEROSUPERIOR QUADRANT, ANTEROINFERIOR QUADRANT
 
References: 
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  Persian Abstract Yearly Visit 61
 
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