Deep brain stimulation for the abernethy malformation related tremor.

Deep brain stimulation (DBS) is introduced for the surgical treatment of movement disorders such as Parkinson's disease, tremor, dystonia, and tics. Electrostimulation of the ventral thalamus or subthalamic area has been found effective in different types of tremors that have different etiologies. Abernethy malformation is a rare congenital abnormality characterized by the presence of a congenital extrahepatic portosystemic shunt between the portal vein and systemic circulation. In this report, we present as a case of Abernethy malformation that caused hyperammonemia congenitally and presented as action and resting tremor in the hands and, treated with DBS.