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Continuing clozapine treatment after a diagnosis of cardiomyopathy

F Williams1, F Lenihan2, A Rowe3

  • 1NHS Fife, Learning Disability Service, Lynebank Hospital, Dunfermline, Halbeath, Fife, UK.

Irish Journal of Psychological Medicine
|September 1, 2021
PubMed

Insights

Clozapine, a crucial antipsychotic for treatment-resistant schizophrenia, can cause cardiac issues. This case highlights managing cardiomyopathy by continuing clozapine with cardiac medication, avoiding psychosis relapse.

Area of Science:

  • Psychiatry
  • Cardiology
  • Pharmacology

Background:

  • Treatment-resistant schizophrenia presents significant management challenges.
  • Clozapine is highly effective but carries risks, including cardiac side effects.
  • Patient history of violence and treatment resistance complicated management decisions.

Purpose of the Study:

  • To describe the management of a patient with treatment-resistant schizophrenia and clozapine-induced cardiomyopathy.
  • To evaluate the risk-benefit of continuing clozapine versus managing psychosis exacerbation.
  • To illustrate a multidisciplinary approach involving psychiatry and cardiology.

Main Methods:

  • Case report of a patient with schizophrenia on clozapine.
  • Diagnosis of sustained tachycardia and mild biventricular cardiomyopathy via echocardiography.
  • Pharmacological management including ramipril and bisoprolol, alongside continued clozapine therapy.

Main Results:

  • The patient's cardiomyopathy was mild and did not necessitate clozapine discontinuation.
  • Continuing clozapine, with added cardiac medications, successfully managed both psychosis and cardiac function.
  • The patient was successfully discharged from psychiatric care and maintained on clozapine.

Conclusions:

  • Careful risk-benefit assessment is crucial when managing clozapine's cardiac side effects in patients with severe mental illness.
  • Continuing clozapine may be preferable to antipsychotic withdrawal if cardiac risks are manageable.
  • A collaborative approach between psychiatry and cardiology can optimize patient outcomes.

Keywords:
Cardiomyopathyclozapineforensicsschizophrenia

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