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A 56-year-old female with treatment-resistant major depressive disorder underwent a course of 10 bilateral electroconvulsive therapy sessions over five weeks after failing four adequate antidepressant trials. Her pre-ECT PHQ-9 was 24 and MMSE was 28/30. After completing the acute ECT series, her PHQ-9 is 8, she reports improved sleep, appetite, and interest in activities, and she has returned to part-time work. However, she reports new difficulty remembering names of acquaintances, misplacing items more frequently, and has noticed trouble recalling events from the two weeks surrounding the ECT treatments. Her current MMSE is 27/30 and MoCA is 24/30. She expresses concern about whether her memory will return to normal. The PMHNP is evaluating the treatment outcomes and cognitive effects. Which of the following best represents the appropriate evaluation?
Explanation
ECT outcome evaluation requires assessing both the antidepressant response and the cognitive side effect profile. Bilateral ECT commonly produces transient anterograde memory difficulties and more persistent retrograde amnesia for the peri-treatment period, with cognitive recovery expected over weeks to months. Maintenance treatment planning is essential given the high relapse rate following ECT.
Key Takeaway
Evaluating ECT outcomes requires balancing the antidepressant efficacy against expected cognitive effects, with retrograde amnesia for the peri-treatment period being a recognized bilateral ECT effect and longitudinal cognitive monitoring essential for tracking recovery.