CLINICAL-EVALUATION OF COMPUTED TOMOGRAPHY-GUIDED VERSUS VENTRICULOGRAPHY-GUIDED THALAMOTOMY FOR MOVEMENT-DISORDERS

38 patients with Parkinsonian or essential tremor who underwent thalam otomy based on ventriculographic coordinates were compared to 23 patie nts whose thalamotomy was performed on the basis of computed tomograph y (CT)-derived target coordinates. The comparison between the two grou ps concerned the age, sex, duration of disease, target side, intra-ope rative target correction, duration of postoperative stay in hospital, transient side-effects, permanent complication, and tremor alleviation . The study showed that the surgical results in terms of tremor contro l were the same in the two groups. However, the percentage of post-ope rative transient side-effects was higher and the duration of stay in h ospital was longer for the ventriculographic patients than for the CT patients.