The investigation of the gait parameter alterations in response to levodopa therapy and tap test in patients with idiopathic normal pressure hydrocephalus.

In our pilot study, we found that the gait parameters improved after levodopa therapy. However, the gait parameters did not change after the CSF tap test which may suggest that our measurement method might overlook detecting the gait disturbance specific to the iNPH. Future research to develop new evaluation methods and questionnaires detecting the gait disturbance specific to the iNPH pathophysiology may provide substantial clinical applications.