BACKGROUND: Clozapine is licensed for the treatment of psychotic illnesses resistant to other antipsychotic medications. Velo-cardio-facial syndrome (VCFS) is associated with a vulnerability to psychotic illness that may be resistant to treatment with conventional typical and atypical antipsychotics. PATIENTS AND METHODS: A 32-year-old man with intellectual disability (ID) and a long history of treatment-resistant psychosis was found to have VCFS. Treatment with typical antipsychotic drugs and with one atypical olanzapine produced no improvement. RESULTS: Treatment with clozapine produced an improvement in psychotic symptoms and associated behavioural abnormalities, but caused hypersalivation, constipation and a seizure disorder. The latter led to two fractures, one requiring surgery. The addition of sodium valproate stopped seizures. CONCLUSIONS: Clozapine may improve psychotic symptoms for people with ID associated with VCFS, but clinicians should be alert for potential adverse effects.
BACKGROUND:Clozapine is licensed for the treatment of psychotic illnesses resistant to other antipsychotic medications. Velo-cardio-facial syndrome (VCFS) is associated with a vulnerability to psychotic illness that may be resistant to treatment with conventional typical and atypical antipsychotics. PATIENTS AND METHODS: A 32-year-old man with intellectual disability (ID) and a long history of treatment-resistant psychosis was found to have VCFS. Treatment with typical antipsychotic drugs and with one atypical olanzapine produced no improvement. RESULTS: Treatment with clozapine produced an improvement in psychotic symptoms and associated behavioural abnormalities, but caused hypersalivation, constipation and a seizure disorder. The latter led to two fractures, one requiring surgery. The addition of sodium valproate stopped seizures. CONCLUSIONS:Clozapine may improve psychotic symptoms for people with ID associated with VCFS, but clinicians should be alert for potential adverse effects.
Authors: Nancy J Butcher; Wai Lun Alan Fung; Laura Fitzpatrick; Alina Guna; Danielle M Andrade; Anthony E Lang; Eva W C Chow; Anne S Bassett Journal: Br J Psychiatry Date: 2015-03-05 Impact factor: 9.319