基準嗅覚検査に関する基礎的研究--オルファクトグラムの作製と嗅覚域値の年齢的分布
スポンサーリンク
概要
- 論文の詳細を見る
In this study, j3-phenyl ethyl alcohol, exaltlide, methyl cyclopentenolone, iso-valeric acid, rundecalactone, scatol, dl-camphor, phenol, diallyl sulfide and acetic acid were selected as standard odorous substances and 10-n solutions of these substances were used for this test.The olfactory sensitivity has been indicated by the index number of these solutions, but this method is not proctical for clinical use. A graph, which is called the olfactogram, was drawn to show the distribution of olfactory acuity for these odorous substances and this graph was eval uated for clinical use. The standard 0 level of olfactory acuity was set on the basis of the mean value of the olfactory detection threshold of normal humans who were around 20 years of age.The threshold of each case was obtained for the standard odorous substances and the olfactogram was drawn.The change of the olfactory acuity due ageing was studied by this method.The results were as follows;1) The olfactory acuity showed the highest level until 20 years of age. Over 20 years of age, the olfactory acuity decreased.2) Especially from 50 years of age, the olfactory acuity decreased rapidiy except for acetic acid and di-camphot.3) The differences of the olfactory acuity between the group of under 9 years and that of over 70 years of age were 1. 46 in the olfactory detection threshoid and 1. 14 in the recognitition threshold.4) The difference between the olfactory detection threshoid and the recognition threshoid was almost I except for acetic acid and dl-camphor.The olfactograms, like audiograms in the audiometry, made it easier to compare the olfactory acuity in clinical application. In the olfactory test, the age factor must be considered.
- 社団法人 日本耳鼻咽喉科学会の論文