Psych CASC / OSCE · Consultation-liaison psychiatry
Explaining postictal psychosis and depression treatment to a partner — CASC communication station
MRCPsych/FRANZCP-style station: explain postictal psychosis, lucid interval, safety, AED role including possible behavioural side effects without scapegoating all treatment, and rationale for treating interictal depression.
On this page & tools
Target exams
Station brief
Format. Communication station, approximately 7–10 minutes after reading time. You are the psychiatry registrar. Neurology remains involved. You meet the partner alone first.[1]
Candidate instructions. Explain postictal psychosis in plain language, including the lucid interval and why this is not ordinary "madness from stress." Address fear about AEDs honestly (some can affect mood/behaviour; stopping all AEDs abruptly is dangerous). Explain why depression screening/treatment matters and that carefully chosen antidepressants (often SSRIs) are commonly used in epilepsy. Agree a shared safety and follow-up plan. Avoid inventing legal section numbers.[2][4]
Candidate scenario
Partner: "After the fits he was fine, chatting, then two days later he was talking about God and tried to hit a nurse. Your epilepsy pills poisoned his mind. I will not let you give him antidepressants — they cause fits. Stop everything and send him home tonight." Ward notes confirm cluster → lucid period → delayed psychosis; background untreated depression; NDDI-E previously elevated.[1][3]
Marking domains
Marking domains: empathy and structure without defensiveness; accurate plain-language model of postictal psychosis and lucid interval; balanced AED discussion (possible behavioural side effects versus danger of abrupt withdrawal); depression treatment rationale and SSRI seizure-risk literacy; safety and not premature same-day discharge if risk remains; shared plan and understanding check with neurology partnership named.[1][2][4]
Reveal assessor key
Open. Acknowledge fear: "What you saw would frighten anyone. He was well after the seizures, then became unwell again — that sequence is important." [1]
Explain PIP. "This pattern is called postictal psychosis. After a cluster of seizures, some people recover for hours or a day or two — a lucid interval — and then develop temporary psychosis: unusual beliefs, poor sleep, and sometimes aggression. It is a known complication of epilepsy, especially temporal lobe epilepsy, not proof he has lifelong schizophrenia." [1]
About AEDs. "We do take seriously that some antiseizure medicines, such as levetiracetam, can increase irritability or mood problems in some people. We will review his regimen with neurology. But stopping all epilepsy medicines suddenly is unsafe and can cause more seizures or status epilepticus. Any change must be planned." [4]
Depression and antidepressants. "He has also screened high for depression between seizures. Untreated depression worsens quality of life and suicide risk. Carefully chosen antidepressants — often an SSRI, started low — are widely used in people with epilepsy; we monitor seizures and mood. We are not proposing high-risk options like bupropion." [2][3][5]
Home tonight. "Discharge depends on safety and settling of psychosis, not only on preference. We want a clear plan: observation, medicines, follow-up with epilepsy and mental health, and what to do if symptoms return after a future cluster." [1][2]
Close. Summarise, invite questions, offer written information, introduce neurology contact, document. [2]
References
- [1]Logsdail SJ, Toone BK Post-ictal psychoses. A clinical and phenomenological description Br J Psychiatry, 1988.PMID 3167343
- [2]Barry JJ, Ettinger AB, Friel P, et al. Consensus statement: the evaluation and treatment of people with epilepsy and affective disorders Epilepsy Behav, 2008.PMID 18502183
- [3]Gilliam FG, Barry JJ, Hermann BP, et al. Rapid detection of major depression in epilepsy: a multicentre study Lancet Neurol, 2006.PMID 16632310
- [4]Mula M Epilepsy and Psychiatric Comorbidities: Drug Selection Curr Treat Options Neurol, 2017.PMID 29046989
- [5]Maguire MJ, Marson AG, Nevitt SJ Antidepressants for people with epilepsy and depression Cochrane Database Syst Rev, 2021.PMID 33860531