[The long-term curative effect of microwave therapy of radiotherapeutical choanal atresia under nasal endoscope].

OBJECTIVE

In order to observe the long-term curative effect of microwave to treat the choanal atresia after radiotherapy under nasal endoscope.

METHOD: Twenty-one cases of choanal atresia after radiotherapy were treated by microwave under nasal endoscope.

RESULT: Following-up more than 3 years after operation, all the 21 cases were cured(100%) with no relapse.

CONCLUSION

This method is simple with mild damage to normal tissues, clear operation visual field, less postoperation pain, stadle long-term therapeutical effect and good way to treat choanal atresia in NPC after radiotherapy.