Important consideration in choosing antipsychotics in the treatment of patients with 22q11.2 deletion syndrome: risk of convulsion
seohyun choi 1, sangu kang 1, heeyeon Kim 1, hyeyoung Kim 1, jeanam Bae 1, jungsub Lee 1, wonhyoung Kim 1*
Department of Psychiatry, Inha University Hospital, Incheon, Korea
Received: September 7, 2018; Revised: December 6, 2018; Accepted: December 21, 2018; Published online: December 21, 2018.
© The Korean College of Neuropsychopharmacology. All rights reserved.

Abstract
The prevalence of epilepsy and psychosis in 22q11.2DS is higher than in the general population.5 Recent study on adults with 22q11.2DS reported that the most common trigger for provoked seizures was the use of antipsychotics and antidepressants.14 In this paper, blonaserin was used because aripiprazole, quetiapine, paliperidone were not effective. The patient had convulsion on the fourth day of taking blonaserin. Neurological and cadiac examination was carried out, and lamotrigine was added at the advice of neurologist. Than the patient didn’t have any convulsions and the symptoms gradually improved. When treating patients with 22q11.2DS, the medicine should be chosen carefully, and the patient should be observed closely, paying attention to the possibility of convulsions.
Keywords: 22q11.2 Deletion syndrome, Psychosis, Convulsion, Antipsychotics


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