Abstract
We have had pharyngeal flap operations on the cases of nasal emission caused by soft palate insufficiency. Before and after the operation, the following measurement and test were made. 1. Measurement of nasal emission by manometer (the Baldwin method) 2. Speech articulation test The results of pharyngeal flap operation on soft palate insufficency were summerized as follows. (1) Manometer (the Baldwin method) a. Both the rate of minimum nasal emission and the rate of nasal emission after three second were greatly improved on the group of cleft palate which had not been operated on, the group of cleft palate operated on and the group of soft palate insufficiency in the absence of cleft palate, compared with preoperative rate. b. Change of nasal emission with the passage of time was improved compared with the pre-operative change. (2) Nasal speech sound, when pronounced, was immediately improved in 14 cases out of 16 cases. (3) In a speech articulation test, any case of post-operative articulation was much improved compared with pre-operative articulation.
