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1.
Article in English | MEDLINE | ID: mdl-15610942

ABSTRACT

This study set out to determine the frequency of catatonic syndrome in chronic schizophrenia and its association with sociodemographic, clinical, and treatment variables. A cross-sectional assessment of a randomly selected cohort of patients (n=225; mean age=42+/-7 years; mean length of illness=20.4+/-7.5 years) with DSM-IV schizophrenia was employed using standard rating instruments for catatonia, drug-induced extrapyramidal symptoms (EPS), and psychotic, depressive, and obsessive-compulsive symptoms. Using a rather narrow definition of catatonia [the presence of four or more signs/symptoms with at least one having a score '2' or above on the Bush-Francis Catatonia Rating Scale (BFCRS)], 72 subjects (32%) met the criteria for the catatonia group (mean number of catatonic signs/symptoms=5.9+/-2.0; mean sum score of 8.7+/-3.4 on the BFCRS). The frequency distribution of catatonic signs/symptoms in the catatonic group and in the whole sample was very similar, with mannerisms, grimacing, stereotypes, posturing, and mutism being the most frequent. In the logistic regression analysis, catatonic subjects had a significantly earlier age of onset, more negative symptoms, and were more likely to receive benzodiazepines than their noncatatonic counterparts. In multiple regression analysis, the severity of catatonia as indicated by the sum score of BFCRS was predicted only by earlier age of onset and negative symptoms. Using relatively narrow criteria, this study confirmed that, if methodically assessed, catatonic signs and symptoms are prevalent in patients with chronic schizophrenia. Catatonia can be differentiated from EPS. Catatonic features indicate a generally poor prognosis in the chronic phase of schizophrenia.


Subject(s)
Schizophrenia, Catatonic/epidemiology , Schizophrenia, Catatonic/psychology , Adolescent , Adult , Basal Ganglia Diseases/chemically induced , Basal Ganglia Diseases/physiopathology , Chronic Disease , Cross-Sectional Studies , Dyskinesia, Drug-Induced/epidemiology , Dyskinesia, Drug-Induced/psychology , Female , Humans , Male , Middle Aged , Psychiatric Status Rating Scales , Socioeconomic Factors
2.
Article in English | MEDLINE | ID: mdl-14499321

ABSTRACT

The objective of the study was to determine the point prevalence of tardive dyskinesia (TD) in Chinese inpatients with chronic schizophrenia and its association with sociodemographic, clinical and treatment variables and other movement disorders. A cross-sectional assessment of a randomly selected cohort of inpatients (n=225; mean age=42+/-7 years) with DSM-IV schizophrenia was employed using standard rating instruments for TD and other drug-induced movement disorders, in addition to catatonia, and psychotic, negative, depressive and obsessive-compulsive symptoms. Using Schooler and Kane's criteria, 15 subjects (6.7%) had TD. Patients with TD were significantly older and significantly fewer of them were taking antiparkinsonian medication than subjects without TD. There was no significant difference between the TD and non-TD groups with respect to other demographic, clinical and treatment variables including sex, age of onset, length of contact with psychiatric services, current antipsychotic dosage, negative symptoms, catatonia and parkinsonism. The results confirmed the low prevalence of TD in patients with chronic schizophrenia compared to those found in Caucasian patients. The study has also replicated the association of TD in Chinese schizophrenia patients with older age but failed to demonstrate any association between TD and other demographic or clinical characteristics including catatonia.


Subject(s)
Asian People/statistics & numerical data , Dyskinesias/epidemiology , Schizophrenia/epidemiology , Adult , Chi-Square Distribution , Chronic Disease , Confidence Intervals , Cross-Sectional Studies , Dyskinesias/physiopathology , Female , Humans , Male , Middle Aged , Schizophrenia/physiopathology , Socioeconomic Factors , Statistics, Nonparametric
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