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Journal of ECT:
doi: 10.1097/YCT.0b013e31822d796c

Patients’ Perspectives on Electroconvulsive Therapy: A Reevaluation of the Review by Rose et al on Memory Loss After Electroconvulsive Therapy

Bergsholm, Per MD, PhD

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Objectives: In 2003, based on a review of 7 studies, Rose et al concluded that at least one third of patients report significant memory loss 6 months or more after electroconvulsive therapy (ECT). However, few details on the included studies were given. The present study evaluates factors that may have influenced the results.

Methods: The 7 studies were scrutinized as to the 6-month assessment criterion, whether the data represent ECT-treated patients in general, specification and significance of the memory loss, stimulus type, and electrode placement.

Results: In 3 studies, the 6-month inclusion criterion was not met, including 1 study with 98% satisfied patients and 1 study with only 37% valid response rate. Two other studies selected individuals from user/advocacy groups generally biased against ECT and were probably overlapping. The significance of memory problems was not mentioned in any of the studies. Two studies reported that 30% and 55% of patients treated with bilateral ECT in the 1970s felt they had persistent memory gaps around the time of treatment, but the long-obsolete sine wave stimulus type was used. The results mostly concerned bilateral ECT, whereas unilateral ECT seemed to cause little complaints.

Conclusions: Data used by Rose et al are severely flawed, making their results inconclusive and misleading.

© 2012 by Lippincott Williams & Wilkins


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