π΅π΄ Hallucinations in the elderly often respond best to reassurance, distraction, and supportive activities.
π Drug treatment is only needed if hallucinations are distressing or pose a safety risk.
π©Ί Assessment
- Clinical Assessment: Detailed history & physical exam to define type, frequency, and triggers of hallucinations π.
- Medical History: Explore neurological (dementia, Parkinsonβs), psychiatric, and systemic illnesses π.
- Neuroimaging: MRI/CT to exclude structural pathology (stroke, tumour, haemorrhage) π§ .
- Laboratory Tests: Screen for metabolic derangements, infection, thyroid dysfunction, or toxins π§ͺ.
- Cognitive & Psychiatric Evaluation: Assess for delirium, dementia, or psychosis π§©.
- Medication Review: Many drugs (opioids, steroids, anticholinergics, dopaminergic therapy) may provoke hallucinations πβ οΈ.
π Common Causes of Visual Hallucinations in Older Adults
- π§ Dementia (esp. Lewy Body): Progressive cognitive decline with vivid, recurrent visual hallucinations.
π Managed with cholinesterase inhibitors (e.g., rivastigmine) and supportive strategies.
- πΆ Parkinsonβs Disease: Dopaminergic therapy can trigger hallucinations.
π Adjust medications, consider low-dose quetiapine or clozapine if necessary.
- β‘ Delirium: Acute, fluctuating confusion due to infection, dehydration, or polypharmacy.
π Treat underlying cause, optimise environment, and provide supportive nursing care.
- π Medication Side Effects: Opioids, steroids, benzodiazepines, and dopaminergic drugs can provoke hallucinations.
π Review prescription list and deprescribe if possible.
- π Psychiatric Disorders: Schizophrenia, severe depression, or mania with psychosis may present with hallucinations.
π Requires psychiatric input, antipsychotic therapy, and CBT.
- π·π Substance Use / Withdrawal: Alcohol withdrawal (delirium tremens), illicit drug use.
π Managed with detoxification, supportive therapy, and liaison psychiatry.
π οΈ Management Principles
- Treat Underlying Conditions: Correct infection, metabolic imbalance, or remove offending medications π§Ύ.
- Pharmacological:
- β οΈ Low-dose antipsychotics (quetiapine, risperidone) only if hallucinations are distressing or dangerous.
- π Cholinesterase inhibitors in dementia-related hallucinations.
- π« Avoid typical antipsychotics (haloperidol) in Parkinsonβs or Lewy Body Dementia due to severe sensitivity.
- Psychosocial:
- π§© Cognitive Behavioural Therapy (CBT): To manage distress.
- π‘ Environmental Adjustments: Good lighting, clear orientation cues, calm surroundings.
- π¨βπ©βπ§ Family/Caregiver Education: Explaining benign vs. harmful hallucinations, and reducing stressors.
- Supportive Care:
- πΆπ¨ Encourage distraction and activities (music, crafts, walks).
- β³ Regular monitoring and follow-up to review progression and treatment effect.
π‘ Clinical Pearls
- ποΈ Visual hallucinations are strongly associated with Dementia with Lewy Bodies compared to Alzheimerβs.
- π Always rule out delirium before assuming psychiatric or degenerative causes.
- πΏ First-line = reassurance, distraction, supportive environment. Drugs only if symptoms are severe or unsafe.