| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Research Abstract |
Efficacy of the mastoid obliteration for the patients with middle ear cholesteatoma has been well recognized, however, the long-term stability after this surgical procedure and the risk of residual cholesteatoma are still in discussion. The aims of this study were to demonstrate postoperative stability of the reconstructed posterior canal wall made with bone pate and to evaluate the pathogenesis of residual cholesteatoma in the obliterated mastoid cavity. We successfully established the animal models of mastoid obliteration and residual cholesteatoma.
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