In one study of 115 patients, 31 were seizure free, 56 improved, and no change in 27.[ 34 ] In another small study of 14 patients, improvement was observed in only two.[ 35 ] With the target on centromedian nucleus of thalamus highly significant improvement was observed in 13 patients with GTCS and atypical absence, while no benefit was seen in complex partial seizures.[ 36 ] Another report mentioned that only one out of seven patients benefited with seizure reduction.[ 37 ] Subthalamic neural stimulation with bilateral stimulator leads in
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