The goal of this clinical trial is to improve how electroconvulsive therapy (ECT) stimulation settings are chosen. Researchers will use real-time brain monitoring to measure both seizures and a recently identified brain event called cortical spreading depolarization (CSD). The main questions it aims to answer are: What is the best way to increase ECT stimulation settings? How do different pulse settings affect the brain's response? Can certain settings produce CSD without causing a seizure? Participants already receiving ECT as part of their care will take part. They will be assigned to one of two groups: Index ECT group: Participants starting ECT will receive different standard titration approaches. Maintenance ECT group: Participants receiving ongoing ECT will undergo a brief, low-dose stimulation test before treatment. All participants will be monitored using brain physiology (EEG and blood flow) and symptom scales during treatment.
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A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Brain hemodynamics
Timeframe: Periprocedural (10-20 minutes per ECT session). Assessed repeatedly over approximately 12 ECT sessions for index arm patients (3 times/week for 4-6 weeks), or for 8 sessions (once a month for 8 months) in the maintenance arm.
Electroencephalography - Seizure Duration
Timeframe: Periprocedural (10-20 minutes per ECT session). Assessed repeatedly over approximately 12 ECT sessions for index arm patients (3 times/week for 4-6 weeks), or for 8 sessions (once a month for 8 months) in the maintenance arm.
Electroencephalography - theta band power
Timeframe: Periprocedural (10-20 minutes per ECT session). Assessed repeatedly over approximately 12 ECT sessions for index arm patients (3 times/week for 4-6 weeks), or for 8 sessions (once a month for 8 months) in the maintenance arm.
Electroencephalography - Brain Symmetry Index
Timeframe: Periprocedural (10-20 minutes per ECT session). Assessed repeatedly over approximately 12 ECT sessions for index arm patients (3 times/week for 4-6 weeks), or for 8 sessions (once a month for 8 months) in the maintenance arm.
Zachary Rosenthal, MD PhD