Comparing Brain Stimulation Strategies for Depression
Two transcranial magnetic stimulation protocols produced different short-term outcomes in patients with major depressive disorder
A randomized clinical trial evaluated two transcranial magnetic stimulation (TMS) strategies for major depressive disorder: intermittent theta-burst stimulation (iTBS) and a sequential bilateral protocol. The results indicated that patients receiving iTBS showed significantly greater improvements in depressive symptoms and emotion regulation over a two-week treatment period compared to the sequential protocol. While both approaches modulate prefrontal brain circuits, iTBS was more effective in enhancing cognitive reappraisal and reducing anxiety symptoms. However, the study's limitations, including the lack of a sham control, highlight the need for further research.
1. iTBS outperformed sequential rTMS in reducing depression. 2. 106 participants completed the trial. 3. iTBS targeted the left dorsolateral prefrontal cortex. 4. Mean HAMD score dropped by 14.88 points in iTBS vs. 7.88 in rTMS. 5. Both groups tolerated the treatments well, with mild side effects. 6. Cognitive reappraisal improved more significantly with iTBS. 7. Further studies needed to explore long-term outcomes.