연구개인두의 기능검사를 위한 내시경 및 측면활동투시법의 비교관찰 = A COMPARATIVE STUDY OF THE VELOPHARYNGEAL FUNCTION TESTS

다국어 초록 (Multilingual Abstract)

In a quite large propotion of the repaired cleft palate patients, speech disturbance such as hypernasality and articulation defect are developed, most of which are caused by velopharyngeal incompetence. Though multiplicity of factors are involved in providing intelligible speech, complete, rapid, correctly timed reduction of velopharyngeal portal area is essential.
In the patients with incompetence, information concerning the mechanism of attempted closure is vital to choosing appropriate therapy whether by secondary surgical procedures, prosthetic devices, or speech therapy. Because of the variability of velar and pharyngeal wall movement among this population, the importance of appreciating movement of the portal in three dimensions cannot be overemphasized. The most effective way of determining velopharyngeal function during phonation is direct and indirect visual assessment of the portal area.
The authors have used fiberoptic nasopharyngeal endoscopy for transverse plane, and lateral pharyngeal cineradiography for sagittal plane in 31 patients with speech disturbance following palatoplasty. The findings are compared with each other and aerodynamic study.
The results are as follows;
1) Although there was a some difference between the methods, about 30 per cent of 31 cases revealed velopharyngeal competence.
2) Among the cases showing velopharyngeal incompetence, 3 of 21 cases in lateral cineradiography and 6 of 24 cases in endoscopy were showed no nasal emission in aerodynamic study.
3) The findings of these three methods were not correlated intimately but about 50 percent of similarity was observed between them.