2019 年 19 巻 1 号 p. 33-36
The Trail Making Test (TMT) is widely used as a measure of attention impairment. The time needed to complete TMT (TMT score) is prolonged in association with attention impairment in patients with brain diseases. Thus far, however, there have been no reports of serial changes in the TMT score after minor ischemic stroke. We retrospectively investigated serial changes in the TMT score of 19 patients with minor ischemic stroke. We included patients in whom TMT could be performed both 4-11 days after onset (initial evaluation) and 14-47 days after onset (second evaluation). The mean value of the initial TMT-A scores was 58 seconds, and that of the initial TMT-B scores was 144 seconds. The mean value of the second TMT-A scores was 43 seconds, and that of the second TMT-B scores was 119 seconds. The TMT-A and TMT-B scores improved in 89 % and 74 % of patients, respectively. This study demonstrated that most minor ischemic stroke patients showed improvement in the TMT score 14 days or later after onset.
