Details

Autor(en) / Beteiligte

• Wu, Jing Qin
• Chen, Da Chun
• Xiu, Mei Hong
• Tan, Yun Long
• Yang, Fu De
• Kosten, Thomas R.
• Zhang, Xiang Yang

Titel

Tardive dyskinesia is associated with greater cognitive impairment in schizophrenia

Ist Teil von

• Progress in neuro-psychopharmacology & biological psychiatry, 2013-10, Vol.46, p.71-77

Ort / Verlag

Amsterdam: Elsevier Inc

Erscheinungsjahr

2013

Quelle

MEDLINE

Beschreibungen/Notizen

• Schizophrenia is a psychiatric disorder diagnosed by the presence of a number of symptoms with cognitive impairment as a core feature. Long-term antipsychotic treatment is often associated with the emergence of tardive dyskinesia (TD) and the presence of TD is linked to cognitive impairment. This study examined the relationship between TD and cognitive deficits in Chinese patients with schizophrenia. We recruited 206 chronic patients with TD (n=102) and without TD (n=104) meeting DSM-IV criteria for schizophrenia and 104 control subjects who were matched on age, gender, and education. All the patients completed the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), Positive and Negative Symptom Scale (PANSS), and the Abnormal Involuntary Movement Scale (AIMS). The PANSS total score (p=0.01), N subscore (p=0.006), and AIMS total score (p<0.001) were significantly higher in patients with TD compared to patients without TD. Patients with TD scored lower for visuospatial/constructional, attention, and total index scores (all p<0.001) on the RBANS. AIMS orofacial scores were identified as an independent contributor to RBANS total scores and attention index (p<0.05), whereas AIMS limb and truncal scores were an independent determinant to the visuospatial/constructional index of RBANS (p<0.05). TD was associated with greater cognitive impairment in patients with schizophrenia compared to those without TD. The orofacial and limb-trunk TD specifically appeared to be a risk factor or contributor to the different aspects of cognitive deficits in schizophrenia. The association between schizophrenia and TD may be explained in part by oxidative stress. •TD was associated with greater cognitive impairment in patients with schizophrenia.•The orofacial TD was an independent contributor to the attention index of RBANS.•The limb-trunk TD contributed independently to visuospatial/constructional index.•The association between schizophrenia and TD may be explained by oxidative stress.