ECT tends to cause memory loss from the time around the procedure.
ECT can produce physical pain during the treatment. Headaches are common.
ECT tends to create some cognitive deficits during treatment. These cognitive deficits have been shown to go away between 1-6 months after treatment ends.
Relapse back into depression often occurs, thus necessitating the patient having to return back to ECT inpatient treatment.
This type of treatment can be extremely costly when adding up the inpatient stay, anesthesia, and psychiatrist fees.