Taro Maeda

Publications (2)0.76 Total impact

• Article: Influence of visual information and test paradigm on clinical olfactory test results.

  Masayoshi Kobayashi, Yoshinori Imanishi, Masako Ishikawa, Kohei Nishida, Maaya Oishi, Satoshi Nakamura, Hiroshi Sakaida, Taro Maeda, Takatsugu Tsunoda, Toru Matsuura, Yuichi Majima
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  ABSTRACT: The goal of this study was to determine if visual information and test paradigms affect clinical olfactory test results. Three hundred and ninety-seven Japanese patients with complaints of olfactory dysfunction were administered both a new clinical olfactory test, the Odor Stick Identification Test for Japanese (OSIT-J), and the Japanese benchmark olfactory test, T&T olfactometry. Four different methods were used to administer the OSIT-J combining paradigms using word or picture-word alternatives with the four-plus alternative method based on a top-down strategy or the two-step identification method based on a bottom-up strategy. OSIT-J scores were compared for the different methods, referring to benchmark scores obtained with T&T olfactometry. OSIT-J scores using picture-word alternatives and the four-plus alternative method showed a stronger correlation with T&T olfactometry test scores than those using word alternatives and the two-step identification method, respectively. The average OSIT-J scores of the four-plus alternative method using picture-word alternatives were significantly higher than those using word alternatives in anosmic and severely hyposmic patients. The time required to administer the OSIT-J using both picture-word alternatives and the four-plus alternative method was the shortest of the four OSIT-J methods. Visual information and test paradigms may affect clinical olfactory test results. The OSIT-J method using picture-word alternatives and the four-plus alternative method may be the most suitable for clinical practice.
  Auris Nasus Larynx 03/2008; 35(1):53-60. · 0.76 Impact Factor
• Article: Suitability of the odor stick identification test for the Japanese in patients suffering from olfactory disturbance.

  Masayoshi Kobayashi, Kohei Nishida, Satoshi Nakamura, Maaya Oishi, Takaya Shiozaki, Yuichi Majima, Taro Maeda, Shigeru Furuta, Yasuhiro Takashima, Sachiko Saito
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  ABSTRACT: We studied the suitability of the Odor Stick Identification Test for the Japanese (OSIT-J) in patients suffering from olfactory disturbance. In 120 patients with olfactory disturbance (age range 12-85 years) there were statistically significant correlations between the odor identification rate on the OSIT-J, the results of the Japanese standardized olfactory test (T&T olfactometry) and subjective symptom scores. In every patient treated for olfactory disturbance, the OSIT-J reflected the grade of recovery from the olfactory disturbance as determined by means of T&T olfactometry. The odor identification rate on the OSIT-J also correlated significantly with the results of the i.v. Alinamin test. Regarding the rate of correct recognition of odors on the OSIT-J, menthol and curry odors were recognized with a high rate and orange and wood odors with a low rate. Although the OSIT-J includes 13 kinds of odorants, the number of odorants used can be reduced to a minimum of 5 as the results obtained with this reduced form of the OSIT-J also correlated with the results of T&T olfactometry and the subjective symptom scores as well as with the results obtained with the 13-odorant OSIT-J. We conclude that the OSIT-J is suitable not only as a screening test for olfactory disturbance but also for practical use in clinical otorhinolaryngology.
  Acta oto-laryngologica. Supplementum 08/2004;