Biomedical subjects

Masafumi Mizuno

Publications and source records attributed to Masafumi Mizuno.

12 recordsLinked to original sources

PubMed2007

Contribution of divergent thinking to community functioning in schizophrenia.

Fluency deficits have been associated with poor community functioning in patients with schizophrenia. In our previous study we demonstrated that the ability to generate higher-quality responses on tasks of divergent thinking as measured by several fluency tests was impaired in patients with schizophrenia. The purpose of the present study was to investigate the contribution of the deficits in divergent thinking to community dysfunction in schizophrenia. Forty Japanese outpatients with schizophrenia and 32 healthy control subjects were recruited for this study and assessed over a broad spectrum of the neurocognitive domain. Their capacity for divergent thinking was assessed by idea, design, and word fluency tests. Community functioning was assessed by using the Global Assessment of Functioning (GAF), the Life Assessment Scale for the Mentally Ill (LASMI), and the Social Functioning Scale (SFS). The results confirmed the qualitative deficits of divergent thinking in schizophrenia. Stepwise multiple regressions using neurocognitive and demographic/clinical variables as predictors revealed that the higher-quality response scores on the tasks of divergent thinking significantly contributed to community functioning. Moreover, the deficit on the verbal task of divergent thinking significantly contributed to impairment in the area of daily living, and the deficit on the nonverbal task of divergent thinking significantly contributed to impairment in the area of interpersonal relations. The results of this study reveal the importance and the possibility of cognitive remediation and cognitive training with strategies that target capacity for divergent thinking to improve community functioning in patients with schizophrenia.

Adult↗

PubMed2006

Deinstitutionalization of long-stay patients with schizophrenia: the 2-year social and clinical outcome of a comprehensive intervention program in Japan.

OBJECTIVES: The Sasagawa Project aimed to investigate the effects of deinstitutionalization and evidence-based strategies for the treatment of mental disorders among long-stay patients after their discharge from a mental hospital using a quasi-experimental longitudinal study design and to assess the patients' social and clinical outcomes over a 2-year post-discharge period. METHOD: Seventy-eight patients with schizophrenia were transferred to a community facility (Sasagawa Village) following the closure of Sasagawa Hospital in Koriyama in March 2002. The patients had undergone psychosocial training following the protocol outlined by the Optimal Treatment Project. All evaluations were performed prior to the patients' discharge and were repeated 12 and 24 months after discharge using the Positive and Negative Syndrome Scales, the Global Assessment for Functioning, the Schedule for Assessment of Insight, the Rehabilitation Evaluation Hall and Baker Scale, the Social Functioning Scale, the Drug Attitude Inventory, and the Mini-Mental State Examination. RESULTS: During the 24-month study period, 18 residents had incidents that made their continued stay at Sasagawa Village impossible. Only four (5.1%) of these residents were readmitted to psychiatric wards because of exacerbations of their conditions. Twelve residents were admitted to hospital because of serious physical illnesses. The 60 residents who remained in the community facility for 2 years demonstrated significant improvements in not only their psychiatric symptoms, but also their social functioning, as evidenced by their scores for Social Activity, Speech Skills, Disturbed Speech, Self-Care and General Behaviour on the Rehabilitation Evaluation Hall and Baker Scale and Withdrawal, Independence (Performance), Independence (Competence), and Employment on the Social Functioning Scale. CONCLUSIONS: Careful planning that minimized social and clinical dislocation may have contributed to the successful transition from mental hospital to community facility assessed in this study. Patients with a long history of illness showed favourable outcomes with little clinical deterioration and various improvements in their psychiatric symptoms and social functioning.

Adult↗

PubMed2006

Relation between social functioning and neurocognitive test results using the Optional Thinking Test in schizophrenia.

The current study investigated the relationship between clinical evaluations of social functioning and neurocognitive test results, including various fluency tests for assessing divergent thinking, in patients with schizophrenia. The Optional Thinking Test (OTT) was used to measure the ability of individuals to conceive of alternatives. This test assesses alternative thinking, or the capacity to generate solutions to problems. The current study examined 36 schizophrenia patients and 25 normal subjects using the Mini-Mental State Examination (MMSE), the Rey Auditory Verbal Learning Test (RAVLT), the Letter Cancellation Test (LCT), the Letter and Category Fluency Tests, and the OTT for neurocognitive assessment, as well as the Positive and Negative Syndrome Scale (PANSS), the Global Assessment of Functioning (GAF), the Social Functioning Scale (SFS), and the Life Assessment Scale for the Mentally Ill - Interpersonal Relations (LASMI-I) for clinical measures. The schizophrenia patients had significantly poorer performances on the MMSE, RAVLT, LCT (time), fluency tests, and OTT than the controls. In the OTT, the proportions of classified strategies were indistinguishable between the schizophrenia patients and the controls. Alternative thinking, as measured by the OTT, was correlated with verbal fluency and attention but was not correlated with the social functioning scores (GAF, SFS, LASMI-I), whereas the Means-Ends Problem-Solving was correlated with the GAF in schizophrenia. Patients with schizophrenia could conceive of the same categories of alternatives as healthy people, but could not conceive as many alternatives.

Adult↗

PubMed2005

Social cognitive problem-solving in schizophrenia: associations with fluency and verbal memory.

This study assessed the relationship between social functioning and neurocognitive function in individuals with schizophrenia. Social cognitive problem-solving (SCPS) is a significant contributor to social competence and is an aspect of information processing that is involved in the identification and resolution of interpersonal or social problems. We examined 49 schizophrenia patients and 28 healthy controls using the means-ends problem-solving procedure (MEPS) for SCPS, the Rey Auditory Verbal Learning Test (RAVLT), the Wisconsin Card Sorting Test (WCST), and a series of fluency tests for neurocognitive assessment, as well as the Positive and Negative Syndrome Scale (PANSS) and the Global Assessment of Functioning (GAF). Fluency tests can be used to evaluate divergent thinking, and a qualitative analysis was done of the fluency test responses. The results suggest that patients with schizophrenia have a significantly poorer MEPS performance than normal controls. In patients with normal RAVLT scores, MEPS scores were correlated with task-modified responses on the fluency test but not with any of the WCST scores. This suggests that SCPS is related to divergent thinking that requires concept flexibility and/or the conversion of viewpoint in patients with schizophrenia in whom verbal memory function is preserved.

Adult↗

PubMed2005

Qualitative evaluation of divergent thinking in patients with schizophrenia.

Patients with schizophrenia show deficits across a broad spectrum of neurocognitive domains. In particular, deficits in verbal fluency are common. Verbal fluency tests are neuropsychological tests that assess frontal lobe function or executive function but also assess divergent thinking. However, few studies have considered the impairment of verbal fluency from the viewpoint of divergent thinking. To consider the structure of divergent thinking, not only verbal assessments but also non-verbal assessments are indispensable. We administered several fluency tests, the idea fluency test, the design fluency test, and word (letter and category) fluency tests to 26 patients with schizophrenia and 26 healthy control subjects to evaluate divergent thinking in both groups and assessed their responses qualitatively. An acceptable minimal level of intelligence was maintained in the patient group. Although attention and executive functioning were relatively preserved in the subjects with schizophrenia, they demonstrated significant deficits in divergent thinking and had particular difficulty in producing ideas and designs requiring concept flexibility, a conversion of viewpoint, originality, or novelty. Research on deficits in divergent thinking in patients with schizophrenia may contribute to the development of cognitive and behavioral rehabilitation programs.

Adult↗

PubMed2005

The clinical strategies implementation scale to measure implementation of treatment in mental health services.

OBJECTIVE: The authors describe the development of the Clinical Strategies Implementation Scale (CSI), an instrument designed to help providers measure the extent to which evidence-based strategies have been implemented in the treatment of persons with schizophrenia spectrum disorders. METHODS: Nine ordinal scales were devised to measure key aspects of treatment strategies that have been associated with clinical and social recovery from schizophrenia: goal- and problem-oriented assessment, medication strategies, assertive case management, mental health education, caregiver-based problem solving, living skills training, psychological strategies for residual problems, crisis prevention and intervention, and booster sessions. A study of interrater reliability was conducted with 15 trained raters from participating centers in Athens, Auckland, Bonn, Budapest, Gothenburg, and Tokyo who assessed 54 cases. Each treatment strategy was weighted according to its effect size in clinical trials. Correlation analyses were conducted to explore associations between the total CSI score and ratings of clinical, social, and caregiver outcomes each year over four years of continued treatment of 51 patients. RESULTS: Interrater reliability ranged from .93 to .99. Four annual total CSI ratings were significantly correlated with impairment, disability, functioning, work activity, and an index of recovery. Most correlations were stronger in years 3 and 4 than in years 1 and 2. CONCLUSIONS: Reliable and valid assessment of the implementation of evidence-based strategies in clinical practice is feasible. The quality of integrated program implementation may be associated with improved clinical and social recovery from schizophrenic disorders.

Evidence-Based Medicine↗

PubMed2005

The Sasagawa project: a model for deinstitutionalisation in Japan.

Japanese psychiatric services are still typically hospital-based. The Sasagawa Project is the first systematized deinstitutionalization project in Japan that aims to make the transition from hospital to residential living while ensuring both the quality and continuity of care for the patients. Seventy-eight (51 males) patients (mean age 54.6) with chronic schizophrenia, who were considered appropriate for discharge received continuous cognitive behavioural therapies based on the Optimal Treatment Project manualised protocol, both before and after the hospital closure. During the first 12 months after the deinstitutionalisation was initiated on April 1st, 2002, ten people had incidents that interrupted their stay in the residential Sasagawa Village. A common criticism of many treatment outcome trials is that evaluation is focused on changes in clinical severity. In the Sasagawa project the transition appeared to have been smooth and relatively few incidents occurred could be related to the transition to a less intensive residential care. This project might be a useful model for effecting and monitoring transition from hospital to community care in Japan and other countries where such changes have been proposed.

Activities of Daily Living↗

PubMed2004

Duration of untreated psychosis and pathways to psychiatric services in first-episode schizophrenia.

The aim of the present study was to examine the duration of untreated psychosis (DUP) in first-episode schizophrenia patients in Japan and to investigate the available pathways to psychiatric services. Eighty-three patients who visited Keio University Hospital (n = 54) or Oizumi Mental Hospital (n = 29) were evaluated retrospectively with regard to their DUP, living situation, social participation level, referral pathway, reason for seeking treatment, and their global assessment of functioning (GAF) score. The mean DUP was 13.7 months (median, 5.0 months) overall. No significant difference in DUP was found between subjects living alone and those living with others; however, employed patients had a significantly shorter DUP (8.1 months) than unemployed patients (18.7 months). Pathways to psychiatric services were totally different between the two institutions. Fifty-two subjects (62.7%) came to the services directly: 40 patients (74.1%) came to the university hospital and 12 patients (41.4%) came to the mental hospital. At the mental hospital, nine patients (31.0%) had been admitted because of a legal obligation, and six (20.7%) had been referred through public health centers. None of the patients had been referred to either of the services by general practitioners. The main reason for seeking treatment was psychiatric symptom aggravation (59.3%) at the university hospital and acting out (64.3%) at the mental hospital. Some universal psychosocial factors appear to influence the DUP but the characteristics of specific psychiatric services may also affect treatment delays.

Adolescent↗

PubMed2004

Implementation of evidence-based treatment for schizophrenic disorders: two-year outcome of an international field trial of optimal treatment.

According to clinical trials literature, every person with a schizophrenic disorder should be provided with the combination of optimal dose antipsychotics, strategies to educate himself and his carers to cope more efficiently with environmental stresses, cognitive-behavioural strategies to enhance work and social goals and reducing residual symptoms, and assertive home-based management to help prevent and resolve major social needs and crises, including recurrent episodes of symptoms. Despite strong scientific support for the routine implementation of these 'evidence-based' strategies, few services provide more than the pharmacotherapy component, and even this is seldom applied in the manner associated with the best results in the clinical trials. An international collaborative group, the Optimal Treatment Project (OTP), has been developed to promote the routine use of evidence-based strategies for schizophrenic disorders. A field trial was started to evaluate the benefits and costs of applying evidence-based strategies over a 5-year period. Centres have been set up in 18 countries. This paper summarises the outcome after 24 months of 'optimal' treatment in 603 cases who had reached this stage in their treatment by the end of 2002. On all measures the evidence-based OTP approach achieved more than double the benefits associated with current best practices. One half of recent cases had achieved full recovery from clinical and social morbidity. These advantages were even more striking in centres where a random-control design was used.

Journal Article↗

PubMed2003

[Wilson's disease associated with olfactory paranoid syndrome and idiopathic thrombocytopenic purpura].

In this study we report an individual of Wilson's disease associated with olfactory paranoid syndrome and idiopathic thrombocytopenic purpura. The initial symptom of this female patient was olfactory paranoia at age 17. Although that psychiatric symptom was well controlled under pharmacological treatment for two years, she developed olfactory paranoia as well as sialorrhea, dysarthria and finger tremor at age 20. A year later rigidity was also present in the extremities. At age 23, idiopathic thrombocytopenic purpura was found based on hematological examinations. Because her extrapyramidal symptoms were progressive, she was referred to our department to evaluate her neurologic condition. She was diagnosed as having Wilson's disease based on (1) the presence of Kayser-Fleischer rings, (2) extrapyramidal signs, and (3) a decreased level of serum copper and ceruloplasmin. T2 and FLAIR images of brain MRI showed hyperintense lesions in the putamen, thalamus and pontine tegmentum. Diffusion-weighted images also showed hyperintense lesions in the thalamus and pontine tegmentum. The biopsy specimen of the liver revealed chronic hepatitis with copper accumulation. Since D-penicillamine treatment was initiated, she has shown no olfactory paranoia and exacerbation of ITP. Her gait disturbance has also improved. Olfactory paranoia and ITP are rare clinical complications of Wilson's disease. Further analysis may warrant consideration of the pathophysiological mechanism of the psychiatric, hematological and neuroradiological condition seen in Wilson's disease.

Adult↗

PubMed2003

[Implementation of integrated mental health care in an urban district of Tokyo].

Japan had a long history of long-term hospital care and is now trying to change it into community-based psychiatry. Implementing comprehensive approach that has already been proven effective through evidence based data in one particular community, one has to overcome several local barriers, if the same approach is to be implemented in different situations, such as differences in socio-cultural background and health care system. This is a report of the activities of Minato Net 21 pointing out the "local barriers" on implementing comprehensive approach in an urban district of Tokyo.

Community Mental Health Services↗

PubMedDate not supplied

Expressed emotion and social functioning in chronic schizophrenia.

The aim of this study was to reveal the relationships between family expressed emotion (EE), family evaluations of social functioning, and the psychopathologic symptoms of patients with schizophrenia. We examined whether EE influenced the social functioning of patients with schizophrenia. Forty-four subjects with schizophrenia and 82 of their relatives participated in this study. The Five-Minute Speech Sample (FMSS) was conducted to evaluate EE, and subjects were divided into high-EE and low-EE groups. The Positive and Negative Symptom Scale (PANSS) was used to assess symptom severity. Social functioning was compared between the two groups using the Social Functioning Scale (SFS). No differences in symptom severity or social adjustment, as evaluated by a global assessment of functioning, were observed between the two groups. However, the high-EE relatives tended to evaluate the social functioning of the schizophrenia patient in their family as being rather low and showed a strong dissatisfaction with the patient's social withdrawal and level of independence (competence). Furthermore, low-EE relatives in high-EE families showed the same tendencies. The family members who were evaluated as low-EE relatives in a high-EE family were dissatisfied with the patient's social withdrawal, level of independence (competence), and also their interpersonal functioning. In the chronic stable phase of schizophrenia, the attention of the family members may be more directed towards changes in social functioning; thus, the EE may reflect a family's attitude towards improvements in the patient's social functioning.

Adolescent↗