Resistant Bipolar Affective Disorder Treated by Stereotactic Subcaudate Tractotomy

Abstract
The results of stereotactic subcaudate tractotomy in nine patients with resistant bipolar affective disorder are presented in the form of a single case study with a summary of the other eight cases. Follow-up studies at 2–4 years showed substantial improvement in five patients and amelioration of symptoms in a further four patients, with a tendency for a greater improvement in the manic than in the depressive episodes. These preliminary results suggest that there is a place for this operation in the management of severe bipolar affective disorders which are not responding to any other treatment, although decisive recovery occurs less often than with unipolar depression.

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