Delayed dysgeusia in five patients following MRI-guided focused ultrasound surgery targeting the ventral intermediate nucleus of the ‍thalamus for essential tremor.

Perioperative complications of MR-guided focused ultrasound therapy for Vim-targeted tremor are often reported, such as weakness and paresthesia. In this paper, five cases of dysgeusia after MR-guided focused ultrasound therapy targeting the Vim in patients with essential tremor are presented. All patients also suffered from sensory disturbances. In most cases, dysgeusia is mild, but there have been reports of patients with severe weight loss. Dysgeusia has also been reported in deep brain stimulation therapy. Dysgeusia is a complication that should be considered in the treatment of Vim-targeted tremor. Our own cases of taste disorder are reported, along with a review of the literature.