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Case Studies_ Stahl's Essential - Stephen M. Stahl.docx
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Question

What would you do next?

Increase the bupropion-XL (Wellbutrin-XL) to the approved maximum 450 mg/d

Increase the citalopram (Celexa) further above the geriatric approved maximum dose

Increase zaleplon (Sonata) toward the approved maximum of 20 mg/d (10 mg/d in the elderly)

As she is a partial responder, make no changes until her cochlear implants are in place and her sleep study is performed

Attending physician’s mental notes: interim follow-up visits through four months

Fairly good resolution of dysphoria is reported but insomnia and fatigue are still a major problem

It will still be a while for her to obtain a sleep study and she likely has OSA clinically, thus markedly increasing a sedative at night is worrisome

RLS is now more concerning to the patient, and she admits she likes to stay up watching late-night TV

  • – The initial insomnia may be more of a circadian rhythm sleep disorder (CRSD) in that she is choosing to stay up late and then has to get up early when her home health aide arrives

  • – She is inappropriately awake in the early morning hours and inappropriately tired during the daytime. A circadian delayed phase shift has occurred

Perhaps a “win–win” situation exists where her RLS and initial insomnia could be treated with one medication

  • – This was attempted with tiagabine (Gabitril)

    • This helped the RLS

    • Did not improve her sleep onset

    • Left her more fatigued in the morning

    • Could consider using another off-label antiepileptic medication, given her partial RLS response to tiagabine and hope for less daytime fatigue

A literature search suggests that gabapentin (Neurontin) does have a limited evidence base showing effectiveness in RLS

  • – Otherwise, an option would be to choose a formal RLS-approved dopaminergic medication such as pramipexole (Mirapex) or ropinirole (Requip)

  • – These D2 receptor agonists have some data suggesting they may provide antidepressant response but fatigue is a key side effect

  • – It might help fatigue at night, but the daytime fatigue may be a problem

Case outcome: interim follow-up visits through nine months

Gabapentin (Neurontin) is titrated to 300 mg twice a day as patient also has RLS symptoms intermittently through the day as well

Zaleplon (Sonata) 5 mg at bedtime is still allowed, but only as needed for severe insomnia

SSRI (citalopram [Celexa]) and NDRI (bupropion-XL [Wellbutrin-XL]) are continued at the same doses, 30 mg/d and 300 mg/d, respectively

There is remission of MDD symptoms

RLS resolves and she sleeps better with minimal morning fatigue

However, she still seems to go to bed after midnight due to watching TV

  • – Patient and family educated about sleep hygiene and behavioral management of sleep initiation

  • – It is not possible to ask the home health aide to arrive later due to her schedule, so the patient cannot sleep late to allow for an adequate number of hours of sleep

Her sleep study shows moderate OSA

  • – She is fitted for a CPAP mask, which causes discomfort and claustrophobia and she declines to wear it

Medications with known sedation side effects are moved to afternoon or dinner-time to avoid iatrogenic sedation in the morning

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