| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Outline of Final Research Achievements |
Uvulopalatopharyngoplasty (UPPP) is one of radical treatment for Obstructive Sleep Apnea Syndrome (OSAS). However, the effectiveness of the treatment is just 50%. This study had analyzed UPPP and OSAS from engineering point of view. From the results, this study had made clear following characteristics of UPPP and OSAS; (1) UPPP makes morphological change in nasal-pharynx region drastically, and (2) correlation coefficient between treatment effectiveness of UPPP and dilatation of restricted area in pharynx is relatively low. These results indicate the reason why the effectiveness of UPPP is just 50%. From the results of numerical analysis threshold of wall shear stress is found in OSAS mechanism. Prediction of the wall shear stress is able to make clear the effectiveness of UPPP before the treatment.
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