Management of Impulsivity in Psychoconductual Disorders Associated with Dementia

Introduction to Non-Pharmacological Interventions

The American College of Physicians recommends that non-pharmacological interventions should be implemented first and exhaustively for impulsivity in dementia, reserving medications only for severe symptoms that pose significant risk of harm after behavioral approaches have failed or are impossible 1, 2

The American Geriatrics Society suggests that uncontrolled pain is a major contributor to behavioral symptoms in patients who cannot verbally communicate their discomfort, and should be aggressively treated 1, 2
Infections, especially urinary tract infections and pneumonia, which are disproportionately common in patients with dementia, should be ruled out and treated 1, 2
Urinary retention and constipation, which significantly contribute to agitation and impulsivity, should be addressed 1, 2
Dehydration and metabolic disturbances, which worsen confusion and behavioral symptoms, should be corrected 1, 2
Anticholinergic medications, such as diphenhydramine, hydroxyzine, oxybutynin, and cyclobenzaprine, which worsen confusion and agitation, should be reviewed and discontinued 1, 2

Establishing daily structured routines with predictable activities, regular meal times, and fixed sleep schedules can reduce confusion and anxiety 2
Ensuring adequate lighting during the day (2 hours of bright morning light at 3,000-5,000 lux) can regulate circadian rhythms 2
Reducing excessive noise and eliminating home clutter can minimize overstimulation 3, 2
Using orientation aids, including calendars, clocks, and color-coded labels for navigation, can be helpful 3, 2
Removing mirrors or reflective surfaces that can trigger hallucinations is recommended 2
Using calm tones, simple one-step commands, and gentle touch can tranquilize patients, instead of complex instructions 1, 2
Applying the "three R" approach: repeating instructions, reassuring the patient, and redirecting attention away from anxiety-provoking situations, can be effective 3, 2
Allowing adequate time for the patient to process information before expecting a response is essential 1, 2
Avoiding harsh tones, open-ended questions, and confrontational approaches, which can escalate agitation, is crucial 2

The American Psychiatric Association recommends that medications should only be considered when non-pharmacological approaches have been ineffective after an adequate trial, or when behaviors pose significant safety risks 1, 2
For chronic agitation without psychotic features, selective serotonin reuptake inhibitors (SSRIs) are the preferred first-line treatment 1
Citalopram can be initiated at 10 mg/day, with a maximum dose of 40 mg/day 1
Sertraline can be initiated at 25-50 mg/day, with a maximum dose of 200 mg/day 1
Response should be evaluated within 4 weeks of adequate dosing using quantitative measures such as the Cohen-Mansfield Agitation Inventory or NPI-Q 1
If there is no clinically significant response after 4 weeks, the medication should be gradually reduced and discontinued 1
For severe agitation with psychotic features, risperidone is the preferred antipsychotic 1
Risperidone can be initiated at 0.25 mg at bedtime, with a target dose of 0.5-1.25 mg daily 1
The maximum dose is 2-3 mg/day in divided doses, with a risk of extrapyramidal symptoms at doses >2 mg/day 1

The lowest effective dose should be used for the shortest duration possible 1
Daily evaluation with in-person examination should be performed to determine ongoing need 1
Side effects, including extrapyramidal symptoms, falls, metabolic changes, QT prolongation, and cognitive decline, should be monitored 1
Gradual reduction should be attempted within 3-6 months to determine if the medication is still needed 1
The need for ongoing treatment should be reevaluated at each visit, as approximately 47% of patients continue to receive antipsychotics after discharge without clear indication 1