Optimized trans-cranial direct current stimulation for prolonged consciousness disorder in a patient with titanium mesh cranioplasty

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Abstract
Background: Transcranial direct current stimulation (tDCS) has been used for the restoration of awareness in patients with a minimal consciousness state (MCS). Most brains of patients in MCS may structurally and electrophysiologically differ from un-damaged brains. Moreover, tDCS is currently contraindicated for patients with craniotomy or skull with metallic implants. Case Presentation: We present a case with prolonged MCS over 1 year, who had severe brain damage, ventriculoperitoneal shunt, and cranioplasty with a titanium mesh, which was treated with tDCS which optimized with the simulation of the electric field based on the patient’s brain MRI. The patient was resulting in emergence from MCS. Six months later, she ate meals orally and started walking with assistance. Discussion and perspective: This personalized simulation based on MRI would make the treatment available even to patients with severe brain structural changes and metallic instrumentation.
Funding Information
  • National Research Foundation of Korea (2021R1A2C1012113)

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