Accelerated magnetic seizure therapy (aMST) for treatment of major depressive disorder: A pilot study

Jian Wang1, Fidel Vila-Rodriguez2, Ruiyang Ge2

  • 1Department of Psychiatry, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.

Abstract

Insights

Accelerated Magnetic Seizure Therapy (aMST) shows promise for treating major depressive disorder (MDD), offering rapid symptom improvement with minimal cognitive side effects. This pilot study indicates aMST is well-tolerated and effective for depression and anxiety.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Clinical Psychology

Background:

  • Magnetic Seizure Therapy (MST) is an emerging neuromodulation technique for treating major depressive disorder (MDD).
  • MST is associated with fewer cognitive side effects compared to electroconvulsive therapy (ECT).
  • Accelerated MST (aMST) involves a more frequent treatment schedule.

Purpose of the Study:

  • To investigate the antidepressant effects of a daily aMST treatment schedule.
  • To assess the cognitive side effects associated with an accelerated MST protocol.
  • To evaluate the tolerability and safety of aMST in MDD patients.

Main Methods:

  • A pilot study involving 15 MDD patients undergoing a six-day aMST treatment course.
  • Symptom severity assessed using the Hamilton Rating Scale for Depression (HRSD-17).
  • Neuropsychological testing included the RBANS and Stroop Colour-Word test.

Main Results:

  • No instances of delirium or disturbance of consciousness were reported.
  • Significant reductions in depression and anxiety symptoms were observed.
  • 60% of patients showed a clinical response, and 47% achieved remission.
  • Improvements in immediate and delayed memory were noted (RBANS scores).
  • No significant changes in visuospatial/constructional skills, language, attention, or Stroop performance were found.

Conclusions:

  • aMST was well-tolerated with no significant cognitive side effects.
  • Rapid symptom improvement was observed in MDD patients.
  • Further research is needed to confirm these findings and assess long-term efficacy.