TREATMENT A trial of ECT
Because Mr. X does not respond to the standard treatment protocols, the treatment team and Mr. X’s family discuss the use of ECT to control his agitation. Consent is obtained from his legal guardian and Mr. X is medically cleared to receive ECT. Mr. X receives 3 ECT treatments per week. During the first week, Mr. X experiences post-treatment agitation and confusion. The frequency of ECT treatments is reduced to 2 treatments per week, and then 1 session per week. Mr. X starts to show improvement in his agitation and ECT is continued at 1 session per week for 7 weeks.
The authors’ observations
Electroconvulsive therapy has been an effective treatment for patients with treatment-resistant depression and has shown benefit in treating other psychiatric conditions such as acute mania, catatonia, psychotic disorders, and Parkinson’s disease.22 Its use as an off-label treatment for chronic neuropathic pain has also been well documented.23 Although ECT is not indicated for treating agitation and aggression in patients with dementia, its effectiveness for these symptoms has been discussed extensively in the literature.22,24-26
Electroconvulsive therapy treatment can be divided into 2 phases: an acute phase during which ECT is administered 2 to 3 times a week for 4 to 5 weeks, and a maintenance phase of weekly treatments for 4 weeks and then biweekly treatments for 8 weeks.26 Although extensive research supports the safe use of ECT in older adults, concerns for worsening cognitive impairment can deter patients and families from agreeing to this treatment.
Adverse effects of ECT such as headaches and postictal confusion are generally mild and transient. Severe adverse effects such as seizures, severe confusion, and delirium are uncommon.25 The number of ECT treatments required for a good effect ranges from 2 to 18, and the most common position for electrodes placement is bilateral. Outcomes can be measured by using rating scales such as the Cohen-Mansfield Agitation Inventory, Neuropsychiatric Inventory, Social Dysfunction and Aggression Scale, Clinical Global Impression scale, and Pittsford Agitation Scale.25 Obtaining consent from patients with dementia is generally not possible because these patients generally lack the capacity to make medical decisions. Clinicians should refer to their state laws regarding medical-decision making in such cases. The patient’s next of kin or medical power of attorney should be contacted, and the risks and benefits should be discussed before starting ECT.
OUTCOME Lasting improvement
Due to Mr. X’s improvement after ECT, on hospital Day 124, the restraints are removed and he no longer requires a sitter. He starts responding to his name and following simple verbal commands. Electroconvulsive therapy is tapered to every other week, and eventually stopped as his status improves. Mr. X continues to do well and is maintained on the same dosages of olanzapine, carbamazepine, and dextromethorphan-quinidine he had been receiving prior to discharge.
Related Resources
• Van den Berg JF, Kruithof HC, Kok RM, et al. Electroconvulsive therapy for agitation and aggression in dementia: a systematic review. Am J Geriatr Psychiatry. 2018;26(4):419-434.
• Kales HC, Mulsant BH, Sajatovic M. Prescribing antipsychotics in geriatric patients: Focus on dementia. Current Psychiatry. 2017;16(12):24-30.
Drug Brand Names
Aripiprazole • Abilify
Carbamazepine • Tegretol
Citalopram • Celexa
Dextromethorphan- quinidine • Nuedexta
Divalproex sodium ER • Depakote
Donepezil • Aricept
Gabapentin • Neurontin
Haloperidol • Haldol
Lorazepam • Ativan
Memantine • Namenda
Olanzapine • Zyprexa
Prazosin • Minipress
Quetiapine • Seroquel
Risperidone • Risperdal
Rivastigmine • Exelon
Sertraline • Zoloft
Trazodone • Desyrel, Oleptro
Ziprasidone • Geodon