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  • Royal College of Psychiatrists  (22)
  • 1
    Online Resource
    Online Resource
    Royal College of Psychiatrists ; 2022
    In:  The British Journal of Psychiatry Vol. 221, No. 6 ( 2022-12), p. 711-713
    In: The British Journal of Psychiatry, Royal College of Psychiatrists, Vol. 221, No. 6 ( 2022-12), p. 711-713
    Abstract: Valproate is widely used in psychiatry and neurology, including off-label use. Here we consider its potential benefits and risks, particularly for women of childbearing potential, and the evidence that clinical guidelines are adhered to. Finally, we consider the implications for clinical practice and research into its efficacy in off-label indications.
    Type of Medium: Online Resource
    ISSN: 0007-1250 , 1472-1465
    RVK:
    Language: English
    Publisher: Royal College of Psychiatrists
    Publication Date: 2022
    detail.hit.zdb_id: 2021500-9
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  • 2
    Online Resource
    Online Resource
    Royal College of Psychiatrists ; 2014
    In:  British Journal of Psychiatry Vol. 205, No. 1 ( 2014-07), p. 1-3
    In: British Journal of Psychiatry, Royal College of Psychiatrists, Vol. 205, No. 1 ( 2014-07), p. 1-3
    Abstract: Schizophrenia is usually classified based on clinical presentation. However, the conventional paranoid–disorganised–residual distinctions have had limited clinical utility. Here we draw on the evidence for differences in pathophysiology underlying treatment response to propose a subclassification based on neurobiology to guide diagnostic testing and treatment.
    Type of Medium: Online Resource
    ISSN: 0007-1250 , 1472-1465
    RVK:
    Language: English
    Publisher: Royal College of Psychiatrists
    Publication Date: 2014
    detail.hit.zdb_id: 2021500-9
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  • 3
    Online Resource
    Online Resource
    Royal College of Psychiatrists ; 2015
    In:  British Journal of Psychiatry Vol. 206, No. 2 ( 2015-02), p. 164-165
    In: British Journal of Psychiatry, Royal College of Psychiatrists, Vol. 206, No. 2 ( 2015-02), p. 164-165
    Abstract: N -methyl-d-aspartate receptor (NMDA-R) autoantibodies have been reported in people with acute psychosis. We hypothesised that their presence may be implicated in the aetiology of treatment-refractory psychosis. We sought to ascertain the point prevalence of NMDA-R antibody positivity in patients referred to services for treatment-refractory psychosis. We found that 3 (7.0%) of 43 individuals had low positive NMDA-R antibody titres. This suggests that NMDA-R autoantibodies are unlikely to account for a large proportion of treatment-refractory psychosis.
    Type of Medium: Online Resource
    ISSN: 0007-1250 , 1472-1465
    RVK:
    Language: English
    Publisher: Royal College of Psychiatrists
    Publication Date: 2015
    detail.hit.zdb_id: 2021500-9
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  • 4
    In: The British Journal of Psychiatry, Royal College of Psychiatrists, Vol. 217, No. 2 ( 2020-08), p. 450-457
    Abstract: Heart disease is the leading cause of death in schizophrenia. However, there has been little research directly examining cardiac function in schizophrenia. Aims To investigate cardiac structure and function in individuals with schizophrenia using cardiac magnetic resonance imaging (CMR) after excluding medical and metabolic comorbidity. Method In total, 80 participants underwent CMR to determine biventricular volumes and function and measures of blood pressure, physical activity and glycated haemoglobin levels. Individuals with schizophrenia (‘patients’) and controls were matched for age, gender, ethnicity and body surface area. Results Patients had significantly smaller indexed left ventricular (LV) end-diastolic volume (effect size d = −0.82, P = 0.001), LV end-systolic volume ( d = −0.58, P = 0.02), LV stroke volume ( d = −0.85, P = 0.001), right ventricular (RV) end-diastolic volume ( d = −0.79, P = 0.002), RV end-systolic volume ( d = −0.58, P = 0.02), and RV stroke volume ( d = −0.87, P = 0.001) but unaltered ejection fractions relative to controls. LV concentricity ( d = 0.73, P = 0.003) and septal thickness ( d = 1.13, P 〈 0.001) were significantly larger in the patients. Mean concentricity in patients was above the reference range. The findings were largely unchanged after adjusting for smoking and/or exercise levels and were independent of medication dose and duration. Conclusions Individuals with schizophrenia show evidence of concentric cardiac remodelling compared with healthy controls of a similar age, gender, ethnicity, body surface area and blood pressure, and independent of smoking and activity levels. This could be contributing to the excess cardiovascular mortality observed in schizophrenia. Future studies should investigate the contribution of antipsychotic medication to these changes.
    Type of Medium: Online Resource
    ISSN: 0007-1250 , 1472-1465
    RVK:
    Language: English
    Publisher: Royal College of Psychiatrists
    Publication Date: 2020
    detail.hit.zdb_id: 2021500-9
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  • 5
    Online Resource
    Online Resource
    Royal College of Psychiatrists ; 2012
    In:  British Journal of Psychiatry Vol. 201, No. 6 ( 2012-12), p. 481-485
    In: British Journal of Psychiatry, Royal College of Psychiatrists, Vol. 201, No. 6 ( 2012-12), p. 481-485
    Abstract: Clozapine is the only antipsychotic drug licensed for treatment-resistant schizophrenia but its use is often delayed. Since previous studies, national guidelines on the use of clozapine and other antipsychotics have been disseminated to clinicians. Aims To determine the theoretical delay to clozapine initiation and to quantify the prior use of antipsychotic polypharmacy and high-dose antipsychotic treatment. Method Clinico-demographic data were extracted from the treatment records of all patients commencing clozapine in our centre between 2006 and 2010. Results Complete records were available for 149 patients. The mean theoretical delay in initiating clozapine was 47.7 months (s.d. = 49.7). Before commencing clozapine, antipsychotic polypharmacy and high-dose treatment was evident in 36.2 and 34.2% of patients respectively. Theoretical delay was related to illness duration (β = 0.7, P 〈 0.001) but did not differ by gender or ethnicity. Conclusions Substantial delays to clozapine initiation remain and antipsychotic polypharmacy and high doses are commonly used prior to clozapine, despite treatment guidelines.
    Type of Medium: Online Resource
    ISSN: 0007-1250 , 1472-1465
    RVK:
    Language: English
    Publisher: Royal College of Psychiatrists
    Publication Date: 2012
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  • 6
    Online Resource
    Online Resource
    Royal College of Psychiatrists ; 2016
    In:  British Journal of Psychiatry Vol. 209, No. 5 ( 2016-11), p. 361-365
    In: British Journal of Psychiatry, Royal College of Psychiatrists, Vol. 209, No. 5 ( 2016-11), p. 361-365
    Abstract: Patients who recover from an acute episode of psychosis are frequently prescribed prophylactic antipsychotics for many years, especially if they are diagnosed as having schizophrenia. However, there is a dearth of evidence concerning the long-term effectiveness of this practice, and growing concern over the cumulative effects of antipsychotics on physical health and brain structure. Although controversy remains concerning some of the data, the wise psychiatrist should regularly review the benefit to each patient of continuing prophylactic antipsychotics against the risk of side-effects and loss of effectiveness through the development of supersensitivity of the dopamine D 2 receptor. Psychiatrists should work with their patients to slowly reduce the antipsychotic to the lowest dose that prevents the return of distressing symptoms. Up to 40% of those whose psychosis remits after a first episode should be able to achieve a good outcome in the long term either with no antipsychotic medication or with a very low dose.
    Type of Medium: Online Resource
    ISSN: 0007-1250 , 1472-1465
    RVK:
    Language: English
    Publisher: Royal College of Psychiatrists
    Publication Date: 2016
    detail.hit.zdb_id: 2021500-9
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  • 7
    In: British Journal of Psychiatry, Royal College of Psychiatrists, Vol. 191, No. S51 ( 2007-12), p. s13-s18
    Abstract: The dopamine hypothesis has been the major pathophysiological theory of psychosis in recent decades. Molecular imaging studies have provided in vivo evidence of increased dopamine synaptic availability and increased presynaptic dopamine synthesis in the striata of people with psychotic illnesses. These studies support the predictions of the dopamine hypothesis, but it remains to be determined whether dopaminergic abnormalities pre-date or are secondary to the development of psychosis. We selectively review the molecular imaging studies of the striatal dopaminergic system in psychosis and link this to models of psychosis and the functional subdivisions of the striatum to make predictions for the dopaminergic system in the prodromal phase of psychosis
    Type of Medium: Online Resource
    ISSN: 0007-1250 , 1472-1465
    RVK:
    Language: English
    Publisher: Royal College of Psychiatrists
    Publication Date: 2007
    detail.hit.zdb_id: 2021500-9
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  • 8
    In: BJPsych Open, Royal College of Psychiatrists, Vol. 9, No. S1 ( 2023-07), p. S68-S69
    Abstract: Antipsychotic treatment is associated with metabolic disturbance, with clear differences observed between drugs in the adult population. However, the degree to which metabolic alterations occur with different antipsychotics in children and adolescents is unclear. As such, we aimed to compare and rank antipsychotics based on their metabolic and endocrine side-effects when used in the treatment of schizophrenia in this age population. Methods We searched MEDLINE, EMBASE, and PsycINFO from inception until October 30, 2022. We included double blinded, randomised controlled trials comparing 12 antipsychotics and placebo in acute treatment of schizophrenia in individuals aged 〈 18 years. We performed random-effects network meta-analyses to investigate treatment-induced changes in body weight, BMI, total cholesterol, LDL cholesterol, HDL cholesterol, triglycerides, glucose, and prolactin concentrations. We performed meta-regressions to examine the relationship between metabolic/endocrine change and age, sex, and ethnicity Results Of 6697 citations, we included 15 randomised controlled trials, consisting of 2501 patients. Antipsychotics included in analyses were aripiprazole, asenapine, blonanserin, clozapine, haloperidol, lurasidone, molindone, olanzapine, paliperidone, quetiapine, risperidone, and ziprasidone. Median treatment duration was 6 weeks (IQR 6-12). Mean age was 15.13 (SD 0.94) years. Mean differences for weight gain compared with placebo ranged from -2.04 kg (95% CI -4.24 to 0.17) kg for molindone to 4.11 kg (-0.55 to 8.77) for clozapine; for BMI from -0.55 kg/m2 (-1.37 to 0.27) for molindone to 1.92 kg/m2 (0.16 to 3.68) for quetiapine; for total cholesterol from -0.14 mmol/L (-0.70 to 0.41) for risperidone/paliperidone to 0.46 mmol/L (0.00 to 0.90) for quetiapine; for LDL cholesterol from -0.32 mmol (-0.76 to 0.12) for aripiprazole to 0.24 mmol/L (-0.15 to 0.63) for olanzapine; for HDL cholesterol from 0.10 mmol/L (-0.05 to 0.26) for aripiprazole to -0.23 mmol/L (-0.52 to 0.06) for risperidone/paliperidone; for triglycerides from -0.01 mmol/L (-0.21 to 0.34) for molindone to 0.62 mmol/L (0.04 to 1.2) for clozapine; for glucose from -0.33 mmol/L (-0.64 to -0.02) for ziprasidone to 0.81 mmol/L (0.28 to 1.34) for clozapine; for prolactin from -1.92 ng/mL (-15.37 to 11.53) for aripiprazole to 28.10 ng/mL (16.23 to 39.96) for risperidone/paliperidone. Higher baseline age predicted by greater increases in body weight (p = 0.014). Conclusion We found significant differences between antipsychotics in terms of metabolic and endocrine side-effects when used in children and adolescents. Treatment guidelines should be updated to reflect our findings. However, the choice of antipsychotic should be made on an individual basis, considering the clinical circumstances and preferences of young people, carers, and clinicians.
    Type of Medium: Online Resource
    ISSN: 2056-4724
    URL: Issue
    Language: English
    Publisher: Royal College of Psychiatrists
    Publication Date: 2023
    detail.hit.zdb_id: 2829557-2
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  • 9
    Online Resource
    Online Resource
    Royal College of Psychiatrists ; 2019
    In:  British Journal of Psychiatry Vol. 215, No. 2 ( 2019-08), p. 507-507
    In: British Journal of Psychiatry, Royal College of Psychiatrists, Vol. 215, No. 2 ( 2019-08), p. 507-507
    Type of Medium: Online Resource
    ISSN: 0007-1250 , 1472-1465
    RVK:
    Language: English
    Publisher: Royal College of Psychiatrists
    Publication Date: 2019
    detail.hit.zdb_id: 2021500-9
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  • 10
    In: British Journal of Psychiatry, Royal College of Psychiatrists, Vol. 215, No. 6 ( 2019-12), p. 712-719
    Abstract: The first episode of psychosis is a critical period in the emergence of cardiometabolic risk. Aims We set out to explore the influence of individual and lifestyle factors on cardiometabolic outcomes in early psychosis. Method This was a prospective cohort study of 293 UK adults presenting with first-episode psychosis investigating the influence of sociodemographics, lifestyle (physical activity, sedentary behaviour, nutrition, smoking, alcohol, substance use) and medication on cardiometabolic outcomes over the following 12 months. Results Rates of obesity and glucose dysregulation rose from 17.8% and 12%, respectively, at baseline to 23.7% and 23.7% at 1 year. Little change was seen over time in the 76.8% tobacco smoking rate or the quarter who were sedentary for over 10 h daily. We found no association between lifestyle at baseline or type of antipsychotic medication prescribed with either baseline or 1-year cardiometabolic outcomes. Median haemoglobin A 1c (HbA 1c ) rose by 3.3 mmol/mol in participants from Black and minority ethnic (BME) groups, with little change observed in their White counterparts. At 12 months, one-third of those with BME heritage exceeded the threshold for prediabetes (HbA 1c 〉 39 mmol/mol). Conclusions Unhealthy lifestyle choices are prevalent in early psychosis and cardiometabolic risk worsens over the next year, creating an important window for prevention. We found no evidence, however, that preventative strategies should be preferentially directed based on lifestyle habits. Further work is needed to determine whether clinical strategies should allow for differential patterns of emergence of cardiometabolic risk in people of different ethnicities.
    Type of Medium: Online Resource
    ISSN: 0007-1250 , 1472-1465
    RVK:
    Language: English
    Publisher: Royal College of Psychiatrists
    Publication Date: 2019
    detail.hit.zdb_id: 2021500-9
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