Neurosurgery: Functional neurosurgery
Functional neurosurgery encompasses a variety of surgical interventions that are designed to alter the physiological activity of the central nervous system for functional neurological disorders. The surgical principles of functional neurosurgery were to lesion the brain structures, thereby removing abnormal neuronal circuits. Functional neurosurgery in the present day focuses on improving the quality of life of patients who suffer from functional disorders such as neuralgia, movement disorder, and epilepsy surgery. The benefits of deep brain stimulation (DBS) have been demonstrated in major clinical trials and it has been shown to improve motor function, reduce the side effects of antiparkinsonian medication in patients with advanced Parkinson’s disease, as well as produce persistent tremor suppression in patients with essential tremor. The DBS system consists of three components: the implanted pulse generator, the lead, and an extension. DBS surgery is best performed by an experienced team with specific expertise in stereotactic and functional neurosurgery.