title: Successful use of olanzapine in adolescent monozygotic twins with catatonic schizophrenia resistant to electroconvulsive therapy: case report.
abstract: We describe a case of monozygotic (MZ) male twins (14.6 years old) who suffered from a severe form of catatonic schizophrenia. On admission, the principal symptoms of the brothers were stupor, mutism, catatonic posturing, rigidity, negativism, and refusal of food and liquids. They were treated with electroconvulsive therapy (ECT) with no effect (twin A) and almost no effect (twin B). Both twins improved with initiation of olanzapine therapy. Twin B showed a marked improvement by week 2 on a dose of 10 mg daily (qd). Improvement in twin A was seen by week 4 on a dose of 15 mg qd. Twin B was discharged after 8 weeks and twin A after 11 weeks of olanzapine treatment. This appears to be the first report on concordant positive responses to olanzapine in MZ twins with catatonic schizophrenia, as well as, the first report on concordant resistance to ECT.
authors.affiliation: Department of Child Psychiatry, Charles University, 2nd Medical School, V Uvalu 84, Prague, Czech Republic. iva.dudova@lfmotol.cuni.cz
authors.forename: Iva
authors.initials: I
authors.lastname: Dudova
authors.forename: Michal
authors.initials: M
authors.lastname: Hrdlicka
mesh_terms: D000293:Adolescent; D014150:Antipsychotic Agents / Q000627:therapeutic use*; D001569:Benzodiazepines / Q000627:therapeutic use*; D004565:Electroconvulsive Therapy; D006801:Humans; D008297:Male; D000077152:Olanzapine; D012560:Schizophrenia, Catatonic / Q000188:drug therapy* / Q000235:genetics / Q000523:psychology; D016896:Treatment Outcome; D014430:Twins, Monozygotic / Q000523:psychology*
chemical_list: D014150:Antipsychotic Agents; D001569:Benzodiazepines; D000077152:Olanzapine