Accelerated Bilateral Sequential Theta Burst Stimulation in Older Adults With Treatment-resistant Depression

"We shall use the Magpro device (Magventure) employing the specialized Active/Sham B70 coil.~absTBS shall be administered consisting of 6 sessions daily (with a 50-minute interval between treatment sessions) on Mondays to Fridays or for a maximum of 5 working days of daily treatment. The target stimulation intensity will be set at 90 to 120% of the subject's resting motor threshold (RMT). Each session shall be composed of administration of continuous theta burst stimulation (triplet burst pulses at 50 Hz, repeated at 5 Hz, for a total of 600 pulses per session over 40 seconds administered on the right dorsolateral prefrontal cortex) and then intermittent theta burst stimulation (triplet burst pulses at 50 Hz bursts, repeated at 5 Hz, 2 s on and 8 s off, for a total of 600 pulses per session over about 3 min, administered on the left dorsolateral prefrontal cortex).~The sham treatment will be conducted for the same number of sessions and duration as the absTBS treatment sessions."