The Effect of Cognitive Behavioral Therapy in Drug-Resistant Patients with Schizophrenia / 신경정신의학

OBJECTIVES: Cognitive behavioral therapy of schizophrenia has been developed as a psychological therapy for drug resistant patients with schizophrenia. However, there are some controversial issues regarding the size and mode of the therapeutic effect. The aim of this study is to compare the effect of cognitive behavioral therapy with supportive therapy after treatment. METHODS: Patients with drug resistant schizophrenia were randomly allocated, and stratified according to two mental health institutes to two different therapy groups. We used four assessment scales to evaluate residual symptoms of patients in detail. Patients were assessed twice by a blind rater, at baseline and after treatment. RESULTS: No significant differences in the change of PANSS (Positive and Negative Syndrome Scale) scores were observed between the cognitive behavioral therapy and supportive therapy groups at one month after treatment. There was no significant difference in change of K-PSYRATS (Korean-Psychotic Symptom Rating Scale)-Delusion score, however, a trend toward significance in K-PSYRATS - Hallucination was observed between the two groups. In the aspect of insight, a significant difference in the change of SDMD-K (The Scale to assessment Unawareness of Mental Disorder-Korean version) score was observed between the two groups after treatment. CONCLUSION: Despite remarkable development of pharmacotherapy for schizophrenia, many patients still suffer from residual symptoms. Findings of this study showed that cognitive behavioral therapy can improve the insight of patients and reduce the severity of residual positive symptoms, especially hallucination. Cognitive behavioral therapy should be practiced effectively in the psychiatric clinic and community mental health system.

The Application of the Cognitive Behavioral Therapy in Schizophrenia / 신경정신의학

OBJECTIVES: Cognitive behavioral therapy for treatment of schizophrenia was designed as a psychological therapy for treatment of drug resistant patients with schizophrenia. This therapy is currently being widely applied from early psychosis to chronic condition. The aim of this article is to review the main results of research articles on cognitive behavioral therapy of schizophrenia and prompt practicing the therapy in Korean mental health services. METHODS: The important original and review articles were referred in order to understand the main results of research from published international books, and the English website Pubmed was searched in order to update recent findings. This article reviewed the results of four areas of different phases and types of cognitive behavioral therapy for treatment of schizophrenia: drug resistant chronic patients, acute psychotic state, prodromal phase, and group cognitive behavioral therapy. RESULTS: Cognitive behavioral therapy for treatment of drug resistant patients with schizophrenia can attenuate the positive and general symptoms more than that for patients who receive supportive psychotherapy or treatment as usual. However, the effect appears to be less than previously expected, small to moderate. Cognitive behavioral therapy for patients of acute psychotic state can reduce the time of recovery from acute psychotic symptoms by approximately 25%. The result of cognitive behavioral therapy for patients of prodromal phase shows that the therapy can reduce the rate of transition to schizophrenia by up to one third. Group behavioral therapy has recently been tested. Group therapists have suggested that the therapy should be applied through the way of groups with relatively homogenous symptoms. However, whether the therapy can reduce the severity of hallucination in the voice hearer group is inconclusive. CONCLUSION: Alongside pharmacotherapy for treatment of schizophrenia, cognitive behavioral therapy is a distinct psychological therapy for attenuation of psychotic symptoms. The effect of cognitive behavioral therapy appears to last for one year and requires additional therapeutic sessions after one year. The effect is not still clear in group cognitive behavioral therapy for treatment of schizophrenia. Cognitive behavioral therapy for treatment of schizophrenia should be practiced widely in the Korean mental health system.