Figure 2.

Improvement of tremor severity and function with Vim DBS. The means of the scores for Fahn–Tolosa–Marin Tremor Scale17 (maximum score, 144) are presented. The mean total scores, scores of severity of tremor, and those of functional disability were improved in both SCA (A) and ET patients (B). The scores of severity of handwriting and functional disability in SCA stayed higher than those in ET even during DBS on, because functional disability by ataxia did not improve in SCA. (C) Degrees of improvement in the subscales of tremor show no difference in changes in the scores in all subscores and total score between SCA and ET, suggesting similar improvement of tremor. Bars represent means and SDs.