[The influence of the hamulotome and interplatal incision on the middle ear function].

OBJECTIVE

The aim of this study is to explore the effect of hamulotome on the eustachian tube function and verify the function of the tensor veli palatili muscle on eustachian tube.

METHODS

Single-sided hamulotome were carried out in the rabbits under the direct visual. And the middle ear cavity mucosa of the rabbits was collected at different intervals and dyed with PAS and PH to observe the middle ear changes under microscope.

RESULTS

Middle ear function changed obviously after the hamulotome, with increase in globular cells, submucosal edema and inflammatory cells. And mucin was not found in several cavities.

CONCLUSION

Hamulotome do affect on the middle ear function and should not be damaged in order to protect the middle ear function in some patients.