Skip to main content
Log in

Amnesia Associated with Electroconvulsive Therapy

Progress in Pharmacological Prevention and Treatment

  • Adverse Effects
  • Published:
CNS Drugs Aims and scope Submit manuscript

Summary

Pharmacological treatments have been used in an attempt to improve the memory dysfunction induced by electroconvulsive therapy (ECT). Despite promising results from animal studies, human studies report few successes. Piracetam and physostigmine have been reported to directly improve memory test scores. The use of caffeine and liothyronine (triiodothyronine; T3) has been reported to reduce the number of ECT treatments required to produce a therapeutic effect, thus indirectly reducing memory deficits. However, the majority of studies on pharmacological treatments report no success.

Some studies suggest that reducing the dosage of medications regularly administered with ECT may reduce memory deficits. However, reducing these medications may not be fruitful as they are necessary to prevent the medical risks associated with ECT. Moreover, at the dosages used during ECT, these medications have not been consistently shown to adversely affect cognition.

At present, better controlled studies are required to assist in the search for effective pharmaceutical agents to reduce the cognitive deficits associated with ECT.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Calev A. Neuropsychology of ECT: past and future research trends. Psychopharmacol Bull 1994; 30: 461–9

    PubMed  CAS  Google Scholar 

  2. Calev A, Gaudino EA, Zervas IM, et al. ECT and non-memory cognition: a review. Br J Clin Psychol 1995; 34: 505–15

    Article  PubMed  Google Scholar 

  3. Calev A, Pass HL, Shapira B, et al. ECT and memory. In: Coffey CE, editor. The clinical science of electroconvulsive therapy. Washington, DC: American Psychiatric Press, 1993: 125–42

    Google Scholar 

  4. Squire LR. ECT and memory dysfunction. In: Lerer B, Weiner RD, Belmaker RH, editors. ECT: basic mechanisms. Washington, DC: American Psychiatric Press, 1984: 156–63

    Google Scholar 

  5. Squire LR. ECT and memory loss. Am J Psychiatry 1977; 134: 997–1001

    PubMed  CAS  Google Scholar 

  6. Squire LR. Memory functions as affected by electroconvulsive therapy. Ann N Y Acad Sci 1986; 462: 307–14

    Article  PubMed  CAS  Google Scholar 

  7. Squire LR, Fox MM. Assessment of remote memory: validation of the television test by repeated testing during a 7 year period. Behav Res Methods Instrument 1981; 12: 583–6

    Article  Google Scholar 

  8. Drachman DA, Swearer JM. Selection of drugs for the treatment of memory disorders. In: Canal V, Hachinski G, Francechi M, editors. Guidelines for drug trials in memory disorders. New York: Raven, 1993: 71–86

    Google Scholar 

  9. Small JG, Small IF, Milstein V, et al. Effects of ACTH4−10 on ECT induced memory dysfunctions. Acta Psychiatr Scand 1977; 55: 241–50

    Article  PubMed  CAS  Google Scholar 

  10. D’Elia G, Frederiksen SO. ACTH and memory in ECT-treated patients and untreated controls: effects on retrieval. Acta Psychiatr Scand 1980; 62: 429–35

    Article  PubMed  Google Scholar 

  11. Ayuso-Gutierrez JL, Saiz-Ruiz J. The value of cytidine-5-diphosphate-choline in the prevention of impairment of memory function after electroconvulsive therapy: a double blind study. Prog Neuropsych Biol Psychiatry 1982; 6: 243–8

    Article  CAS  Google Scholar 

  12. Lerer B, Zabow T, Egnal N, et al. Effect of vasopressin on memory following electroconvulsive therapy. Biol Psychiatry 1983; 18: 821–4

    PubMed  CAS  Google Scholar 

  13. Home RL, Pettinati HM, Menken M, et al. Dexamethasone in electroconvulsive therapy: efficacy for depression and post-ECT amnesia. Biol Psychiatry 1984; 19: 13–7

    Google Scholar 

  14. Frederiksen SO, d’Elia G, Holsten F. Influence of ACTH4−10 and unilateral ECT on primary and secondary memory in depressive patients. Eur Arch Psychiatry Clin Neurosci 1985; 234: 291–4

    CAS  Google Scholar 

  15. Nasrallah HA, Varney N, Coffman JA, et al. Effects of naloxone on cognitive deficits following electroconvulsive therapy. Psychopharmacol Bull 1985; 21: 89–90

    PubMed  CAS  Google Scholar 

  16. Nasrallah HA, Varney N, Coffman JA, et al. Opiate antagonism fails to reverse post-ECT cognitive deficits. J Clin Psychiatry 1986; 47: 555–6

    PubMed  CAS  Google Scholar 

  17. Sachs GS, Gelenberg AJ, Bellinghausen B, et al. Ergoloid mesylates and ECT. J Clin Psychiatry 1989; 50: 87–90

    PubMed  CAS  Google Scholar 

  18. Mattes JA, Pettinati HM, Stephens S, et al. A placebo-controlled evaluation of vasopressin for ECT-induced memory impairment. Biol Psychiatry 1990; 27: 289–303

    Article  PubMed  CAS  Google Scholar 

  19. Cohen MR, Swartz CM. Absence of nimodipine premedication effect on memory after electroconvulsive therapy. Neuropsychobiology 1991; 24: 165–8

    Article  CAS  Google Scholar 

  20. Krueger RB, Sackeim HA, Gamzu ER. Pharmacological treatment of the cognitive effects of ECT: a review. Psychopharmacol Bull 1992; 28: 409–24

    PubMed  CAS  Google Scholar 

  21. Ezzat DH, Ibraheem MM, Makhaway B. The effect of piracetam on ECT-induced memory disturbances. Br J Psychiatry 1985; 147: 720–1

    Article  PubMed  CAS  Google Scholar 

  22. Levin Y, Elizur A, Korczyn AD. Physostigmine improves ECT-induced memory disturbances. Neurology 1987; 37: 871–5

    Article  PubMed  CAS  Google Scholar 

  23. Stern RA, Nevels CT, Shelhorse ME, et al. Antidepressant and memory effects of combined thyroid hormone treatment and electroconvulsive therapy: preliminary findings. Biol Psychiatry 1991; 30: 623–7

    Article  PubMed  CAS  Google Scholar 

  24. Calev A, Fink M, Pedrides G, et al. Caffeine pre-treatment enhances clinical efficacy and reduces cognitive side effects on memory after electroconvulsive therapy. Convulsive Ther 1993; 9: 95–100

    Google Scholar 

  25. Fink M. Cholinergic aspects of convulsive therapy. J Nerv Ment Dis 1966; 142: 475–84

    Article  PubMed  CAS  Google Scholar 

  26. Longoni R, Mulas B, Novak I, et al. Effects of single and repeated electroshock applications on brain acetylcholine levels. Neuropharmacology 1976; 15: 283–6

    Article  PubMed  CAS  Google Scholar 

  27. Oliveros JC, Jandali MK, Timsit-Berthier M, et al. Vasopressin in amnesia. Lancet 1978; 8054: 42

    Article  Google Scholar 

  28. Carrasco MA, Dias RD, Izquierdo I. Naloxone reverses retrograde amnesia induced by electroconvulsive shock. Behav Neural Biol 1982; 34: 352–7

    Article  PubMed  CAS  Google Scholar 

  29. Reisberg B, Ferris SH, Anand R, et al. Effects of naloxone in senile dementia: a double-blind trial. N Engl J Med 1983; 308: 721–2

    Article  PubMed  CAS  Google Scholar 

  30. Davis KL, Mohs RC, Tinkleberg JR, et al. Physostigmine improvement of long-term memory processes in normal humans. Science 1978; 201: 272–4

    Article  PubMed  CAS  Google Scholar 

  31. Francis A, Fochtmann L. Reduced proconvulsant activity of caffeine in rats after a series of electroconvulsive seizures. Psychopharmacology 1995; 119: 99–104

    Article  PubMed  CAS  Google Scholar 

  32. Miller AL, Faber RA, Hatch JP, et al. Factors affecting amnesia, seizure duration and efficacy in ECT. Am J Psychiatry 1985; 142: 692–6

    PubMed  CAS  Google Scholar 

  33. Calev A, Nigal D, Shapira B, et al. Early and long-term effects of electroconvulsive therapy and depression on memory and other cognitive functions. J Nerv Ment Dis 1991; 179: 526–33

    Article  PubMed  CAS  Google Scholar 

  34. Calev A, Drexler E, Tubi N. et al. Atropine and cognitive performance after ECT. Convulsive Ther 1991; 7: 92–8

    Google Scholar 

  35. Sommer B, Satlin A, Friedman L, et al. Glycopyrrolate versus atropine in post-ECT amnesia in the elderly. J Geriatr Psychiatry Neurol 1989; 2: 18–21

    Article  PubMed  CAS  Google Scholar 

  36. Lerer B, Shapira B, Calev A, et al. Antidepressant and cognitive effects of twice versus three times weekly ECT: a double blind controlled study. Am J Psychiatry 1995; 152: 564–70

    PubMed  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Pollina, D.A., Calev, A. Amnesia Associated with Electroconvulsive Therapy. CNS Drugs 7, 381–387 (1997). https://doi.org/10.2165/00023210-199707050-00005

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.2165/00023210-199707050-00005

Keywords

Navigation