Raj Harricharan

One year outcome in first episode psychosis: influence of DUP and other predictors

BACKGROUND A number of studies have reported evidence of a relationship between longer duration of untreated psychosis (DUP) and poorer outcome at 1 year while others have failed to find such evidence. It is possible that several other predictors may confound this relationship and there may be different predictors for different dimensions of outcome. In the current study we examined relationship between DUP and several other predictors, and 1 year outcome on rate and level of remission as well as level of positive, negative, depressive and anxiety symptoms in a community cohort of first episode psychosis patients. METHOD All potential cases of a first episode of non-affective psychosis were assessed and offered treatment in a comprehensive treatment program. Data were collected on all patients who completed 1 year of treatment on a number of predictor variables (DUP, length of the prodromal period, age of onset, gender, pre-morbid adjustment during childhood and adolescence, diagnosis) and outcome variables (level of remission, positive, negative, depression and anxiety symptoms based on ratings on SAPS, SANS, CDS and HAS, respectively). Data were analysed using an analysis of variance, bivariate correlations and hierarchical regression analysis. RESULTS Of a total of 130 patients were offered treatment, 106 completed 1 year of treatment and complete data were available on 88 subjects, 80% of whom met criteria for schizophrenia spectrum psychosis. The rate and level of remission were significantly higher for patients with shorter DUP (<22 weeks). DUP was the only independent predictor of the level of remission as well as reality distortion at 1 year; for disorganization syndrome and negative symptoms it was the age of onset and level of premorbid adjustment in adolescence, respectively; while the level of anxiety was predicted by the length of the prodrome. Additional predictors increased the variance explained by each model. CONCLUSION Our results confirmed the independent role of DUP in remission and positive symptom outcome at 1 year, thus providing support for the enthusiasm for early intervention. However, the model including DUP and premorbid adjustment in early adolescence explained a greater amount of variance in outcome on positive symptoms than DUP alone. On the other hand, outcome on negative symptoms, disorganization and anxiety are more likely to be influenced by longer term characteristics such as premorbid adjustment, earlier age of onset, gender and the length of the prodromal period, and therefore may not be as responsive to effects of early intervention.

Social support and three-year symptom and admission outcomes for first episode psychosis

This paper presents the first published findings examining the relationship of social support to three-year symptom outcome and hospitalizations for a group of first episode patients with psychotic disorders. Social support was measured using items from the provider version of the Wisconsin Quality of Life Scale as assessed at the time of initiation of treatment for 113 patients. Outcome was assessed by level of positive and negative symptoms at three-year follow-up and number of psychiatric admissions during those three years. Higher levels of social support were found to correlate with lower levels of positive symptoms and few hospitalizations at follow-up. The relationship of social support to follow-up symptoms and hospitalization was independent of other potential predictors such as gender, age, premorbid adjustment and duration of untreated illness.

Symptom and functional outcomes for a 5 year early intervention program for psychoses

There continues to be controversy concerning the long term benefits of specialized early intervention programs (SEI) for psychotic disorders. Recent reports of five year outcomes for SEI programs indicate that benefits of early intervention programs at two year follow-up have disappeared at five years. The Prevention and Early Intervention Program for Psychoses (PEPP) in London, Ontario offers continuity of care for five years, with a lower intensity level of specialized intervention after the initial two years. In this paper we examine whether the outcomes observed at two years were maintained at five year follow-up. In addition, it was possible to compare PEPP outcomes with those of the OPUS project at two and five years. Results indicate that improvement of symptoms between entry into PEPP and two year follow-up were maintained at five years. In addition, there was further improvement in global functioning between two and five year follow-up. Comparison of PEPP outcomes at two and five year follow-up to those of OPUS suggest that longer term continuity of care within SEI is associated with continuing benefits at least with respect to level of positive symptoms and functioning.

Reduction in neuroleptic-induced movement disorders after a switch to quetiapine in patients with schizophrenia.

Background: Persistent neuroleptic-induced movement disorders limit effective pharmacological management of psychotic disorders. Although antipsychotic switching is a common strategy for managing extrapyramidal side effects (EPSs), there is insufficient empirical support to guide the clinician. We designed the present study to examine whether patients with preexisting EPS switched to quetiapine would show greater reduction in EPS compared with control patients. Methods: Twenty-two patients with schizophrenia meeting clinical criteria for tardive dyskinesia or coexisting parkinsonism were randomized either to switch from their current antipsychotic to quetiapine (n = 13) or to remain on their current treatment (n = 9). A battery of standard clinical assessments for EPS along with electromechanical instrumental measures was administered before randomization and again 1 and 3 months postrandomization. Results: We observed significant reduction in parkinsonism (P < 0.001) and akathisia (P = 0.02) based on clinical assessments and dyskinesia (P < 0.05) based on instrumental assessment for the quetiapine group. Subjects remaining on current treatment exhibited an increase in rigidity (P < 0.05) based on instrumental measures. Conclusions: These findings support the switching to quetiapine in the management of preexisting neuroleptic-induced extrapyramidal side effects.

The role of treatment delay in predicting 5-year outcomes in an early intervention program

BACKGROUND Past research on the relationship between treatment delay and outcomes for first-episode psychosis has primarily focused on the role of duration of untreated psychosis (DUP) in predicting symptomatic outcomes up to 2 years. In the current study we examine the influence of both DUP and duration of untreated illness (DUI) on symptoms and functioning at 5 years follow-up while controlling for other early characteristics. METHOD A total of 132 patients with first-episode psychosis and treated in an early intervention program were prospectively followed up for 5 years. Outcomes assessed included positive and negative symptoms, overall functioning, weeks on disability pension and weeks of full-time competitive employment. RESULTS While DUP showed a significant correlation with level of positive symptoms at follow-up, this was not independent of pre-morbid social adjustment. DUI emerged as a more robust independent predictor of negative symptoms, social and occupational functioning and use of a disability pension. CONCLUSIONS Delay between onset of non-specific symptoms and treatment may be a more important influence on long-term functioning for first-episode patients than DUP. This suggests the possible value of treating such signs and symptoms as early as possible regardless of the effectiveness of such interventions in reducing likelihood or severity of psychotic symptoms.

Social support and functional outcomes in an early intervention program

OBJECTIVE To examine social support at initiation of treatment of psychosis and after one year of treatment as predictors of functioning at five year follow-up. METHODS Early social support was assessed for 132 patients. Follow-up assessments included number of weeks of full-time occupation, number of weeks on a disability pension and global assessment of functioning. RESULTS One year ratings of social support better predicted occupational activity at follow-up than initial social support. Social support predicted functional outcomes independently of other early characteristics. CONCLUSIONS Findings support the importance of interventions to improve the level of support of individuals with psychotic disorders.

The significance of family history in first-episode schizophrenia spectrum disorder.

There have been inconsistent findings regarding the significance of family history of schizophrenia spectrum disorders in relation to presentation and course of illness. There has been little research relevant to this issue from first-episode patients. We examined the differences in premorbid adjustment, symptoms, and intellectual functioning between 28 first-episode schizophrenia spectrum patients with a history of such illness in first degree relatives and 28 matched patients without such a family history. The results indicate that whereas the 2 groups did not differ in presenting symptoms, those with a positive family history showed poorer intellectual functioning and less reduction in symptoms at 2 and 3 year follow-up and greater likelihood of abnormal electroencephalogram findings. The findings provide evidence that presence of a positive family history in first-episode patients is associated with a more pernicious form of illness.

Poster #M94 ARE THE RELATIONSHIPS OF COGNITIVE PERFORMANCE TO PSYCHOSOCIAL FUNCTIONING AT FIVE YEAR OUTCOME MEDIATED BY DISORGANIZATION SYMPTOMS?

and meeting thresholds for each of its criteria. It was also significantly associated with body mass index, smoking and level of physical activity, but not with fruit and vegetable consumption. Lower premorbid IQ was significantly associated with smoking only. Further analysis was undertaken to assess the independent contribution of cognition and modifiable lifestyle risk factors to metabolic syndrome. In the unadjusted multivariate model, current smoking, body mass index and current cognitive function were significant (ORs and CIs: 1.8 (1.3-2.6), 4.8 (3.1-7.5), 15.8 (10.1-24.6) and 0.98 (0.96-0.99) respectively). After adjustment for sex, age, illness duration, socioeconomic status, diagnosis and medication use, cognition was no longer significant. Discussion: Our data support a reported association between metabolic disturbance and cognitive deficits, including speed of processing deficits, in schizophrenia. Current but not premorbid cognitive function was associated with metabolic syndrome and its component risks in people with psychotic illness. However, the effect size was small relative to the impact of modifiable lifestyle risk factors. We were unable to explore directionality in our cross-sectional data. Further investigation is warranted of underlying mechanisms and possible bidirectionality in psychosis where cognitive impairment antedates the onset of metabolic disorders.