Neuropsychiatric disorders

Treatments for the Neuropsychiatric disorders associated with AIDS:

Mild Neuro-cognitive disorder

  • No confabulation
  • Difficulty concentrating, unusual fatigue, subjectively slowed down, difficulty in remembering, learning and recalling new info
  • Difficulty problem solving, abstract reasoning, and slowin of simple motor performances (finger tapping)
  • Be sure to distinguish from delirium and dementia (these have confabulation)

Psychopharmacology – in addition to their usual HIV meds, stimulants (ie, methylphenidate) could be used – BE CAREFUL with drug interactions (CYP 3A4 & CYP 2D6)

HIV Associated Dementia – Signs and Sx

  • The cognitive abnormalities in a person with dementia are more profound and more generalized than in persons with mild neuro-cognitive disorder
  • Marked mental slowness and deterioration
  • With disease progression, pt becomes more apathetic, severely disoriented, and frankly confused
  • Slow onset, long lasting
  • Difficulty in ADL’s
  • Increased irritability, mood lability, delirium, paranoid ideations, auditory and visual hallucinations

- Neuroradiological exam – cortical atrophy (sulci dilation); EEG shows diffuse slowing

- Lab findings – low CD4, increased CSF neopterin and increased CSF quinolinic acid (proteins); ↑ CSF viral load correlated to severity of the dementia

- Course and Prognosis – about 50% of patients diagnosed with AIDS have either asymptomatic neuropsych impairment or mild neurocognitive disorder; poor prognosis

- Treatment

SSRI’s

  • Cytalopram (Celexa)
  • Escitalopram (Lexapro)
  • Paxil (Buroxitine)
  • Venlafaxine (Effexor) – good but be careful with the side effects
  • Mood Stabilizers
  • Valproic acid, and Gabapentin ( NOT Lithium!!)
  • Anti-psychotics
  • NOT low potency anti-psychs or Clozapine
  • Benzodiazepine
      • Esp. short acting or ultrashort acting
      • No TCA’s or buproprion (↓ metab can cause toxicity)
  • DO NOT USE Sertraline (↑ GI probs), FLuoxetine (can cause serotonin syndrome and has ↑↑ drug interactions CYP 2D6);

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