Team consultancy using cognitive analytic therapy: a controlled study in assertive outreach

Randomized controlled trials of mental health nurse-delivered interventions: A systematic review

WHAT IS KNOWN ON THE SUBJECT?: Well conducted randomized controlled trials provide the highest level of evidence of effectiveness of healthcare interventions, including those delivered by mental health nurses. Trials have been conducted over the years but there has not been a comprehensive review since 2005, and never one including studies conducted outside the UK. WHAT THE PAPER ADDS TO EXISTING KNOWLEDGE?: The paper provides a comprehensive overview of results from randomized controlled trials of mental health nurse-delivered interventions conducted in the UK, Ireland, US, Australia, New Zealand, or Canada and reported 2005 to 2020. It highlights that the trial evidence is limited and offers only partial evidence for interventions that are central to mental health nursing practice. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: Much mental health nursing practice is not supported by the highest level trial evidence. Mental health nurses need to carefully select evidence on which to base their practice both from the mental health nursing literature and beyond. Mental health nurses and other stakeholders should demand greater investment in trials to strengthen the evidence base.

ABSTRACT

INTRODUCTION: Nurses are the largest professional disciplinary group working in mental health services and have been involved in numerous trials of nursing-specific and multidisciplinary interventions. Systematic appraisal of relevant research findings is rare.

AIM

To review trials from the core Anglosphere (UK, US, Canada, Ireland, Australia, New Zealand) published from 2005 to 2020.

METHOD

A systematic review reported in accordance with the Preferred Reporting Items for Systematic reviews and Meta-Analyses. Comprehensive electronic database searches were conducted. Eligible studies were randomized controlled trials of mental health nurse-delivered interventions conducted in relevant countries. The risk of bias was independently assessed. Synthesis involved integration of descriptive statistics of standardized metrics and study bias.

RESULTS

Outcomes from 348 between-group comparisons were extracted from K = 51 studies (N = 11,266 participants), Standardized effect sizes for 68 (39 very small/small, 29 moderate/large) statistically significant outcomes from 30 studies were calculable. All moderate/large effect sizes were at risk of bias.

DISCUSSION

Trial evidence of effective mental health nurse-delivered interventions is limited. Many studies produced few or no measurable benefits; none demonstrated improvements related to personal recovery.

IMPLICATIONS FOR PRACTICE

Mental health nurses should look beyond gold standard RCT evidence, and to evidence-based interventions that have not been trialled with mental health nurse delivery.

Psychological consultancy in mental health services: A systematic review of service, staff, and patient outcomes

OBJECTIVES

Psychological consultation in mental health is an organizational intervention aiming to enable mental health care to be delivered in a more efficient manner. This review sought to: (1) clarify what theoretical models underpin consultancy, (2) define how consultancy is implemented, (3) assess the methodological rigour of the evidence base, and (4) define the outcomes achieved for services, staff, and patients. The review was focal to direct and indirect forms of consultation.

METHOD

PRISMA guidelines were followed. Three databases were searched identifying N = 17 studies, and these were quality assessed using the QualSyst quality ratings checklist. Studies were grouped by model of consultation and outcome. A thematic analysis then clustered the patient, staff, and service outcomes into either discrepant or confirmatory evidence.

RESULTS

The most frequently adopted theoretical models underpinning psychological consultation are cognitive-behavioural and cognitive-analytic. Method of consultancy implementation is typically via case formulation meetings. Study quality varied from limited to strong. The main confirmatory and positive outcomes for staff are an increase in understanding and also more positive feelings towards patients, and for the service, there is a reduced need for other interventions.

CONCLUSIONS

Psychological consultation appears a useful and worthwhile aspect of leadership by psychological therapists. Training in delivering consultancy needs to be well integrated into the core curricula of clinical training programmes. The evidence base is still in its infancy, and further well-controlled research is required.

Delivering cognitive analytic consultancy to community mental health teams: Initial practice-based evidence from a multi-site evaluation

OBJECTIVES

This study sought to employ the hourglass model to frame the methodological evolution of outcome studies concerning 5-session cognitive analytic consultancy (CAC).

DESIGN

Pre-post mixed methods evaluation (study one) and mixed methods case series (study two).

METHODS

In study one, three sites generated acceptability and pre-post effectiveness outcomes from N = 58 care dyads, supplemented with qualitative interviewing. The client outcome measures included the Clinical Outcomes in Routine Evaluation Outcome Measure, Personality Structure Questionnaire, Work and Social Adjustment Questionnaire, Service Engagement Scale, and the Working Alliance Inventory. Study two was a mixed methods case series (N = 5) using an A/B phase design with a 6-week follow-up. Client outcome measures were the Personality Structure Questionnaire, Clinical Outcomes in Routine Evaluation Outcome Measure, and the Working Alliance Inventory, and the staff outcome measures were the Working Alliance Inventory, Maslach Burnout Inventory, and the Perceived Competence Scale.

RESULTS

In study one, the cross-site dropout rate from CAC was 28.40% (the completion rate varied from 58 to 100%) and full CAC attendance rates ranged from 61 to 100%. Significant reductions in client distress were observed at two sites. Qualitative themes highlighted increased awareness and understanding across care dyads. In study two, there was zero dropout and full attendance. Clients were significantly less fragmented, and staff felt significantly more competent and less exhausted. Potential mechanisms of change were the effective process skills of the consultant and that emotionally difficult CAC processes were helpful.

CONCLUSIONS

Cognitive analytic consultancy appears a promising approach to staff consultation, and testing in a clinical trial is now indicated.

PRACTITIONER POINTS

CAC is a suitable method of consultation for care dyads struggling to work effectively together in CMHTs. Staff feel more competent and clients feel less fragmented following CAC, and the benefits of CAC appear to be maintained over follow-up time. CAC processes can be difficult for care coordinator and client, but this is not an impediment to change.

Psychological therapies for people with borderline personality disorder

BACKGROUND

Over the decades, a variety of psychological interventions for borderline personality disorder (BPD) have been developed. This review updates and replaces an earlier review (Stoffers-Winterling 2012).

OBJECTIVES

To assess the beneficial and harmful effects of psychological therapies for people with BPD.

SEARCH METHODS

In March 2019, we searched CENTRAL, MEDLINE, Embase, 14 other databases and four trials registers. We contacted researchers working in the field to ask for additional data from published and unpublished trials, and handsearched relevant journals. We did not restrict the search by year of publication, language or type of publication.

SELECTION CRITERIA

Randomised controlled trials comparing different psychotherapeutic interventions with treatment-as-usual (TAU; which included various kinds of psychotherapy), waiting list, no treatment or active treatments in samples of all ages, in any setting, with a formal diagnosis of BPD. The primary outcomes were BPD symptom severity, self-harm, suicide-related outcomes, and psychosocial functioning. There were 11 secondary outcomes, including individual BPD symptoms, as well as attrition and adverse effects.

DATA COLLECTION AND ANALYSIS

At least two review authors independently selected trials, extracted data, assessed risk of bias using Cochrane's 'Risk of bias' tool and assessed the certainty of the evidence using the GRADE approach. We performed data analysis using Review Manager 5 and quantified the statistical reliability of the data using Trial Sequential Analysis.

MAIN RESULTS

We included 75 randomised controlled trials (4507 participants), predominantly involving females with mean ages ranging from 14.8 to 45.7 years. More than 16 different kinds of psychotherapy were included, mostly dialectical behaviour therapy (DBT) and mentalisation-based treatment (MBT). The comparator interventions included treatment-as-usual (TAU), waiting list, and other active treatments. Treatment duration ranged from one to 36 months. Psychotherapy versus TAU Psychotherapy reduced BPD symptom severity, compared to TAU; standardised mean difference (SMD) -0.52, 95% confidence interval (CI) -0.70 to -0.33; 22 trials, 1244 participants; moderate-quality evidence. This corresponds to a mean difference (MD) of -3.6 (95% CI -4.4 to -2.08) on the Zanarini Rating Scale for BPD (range 0 to 36), a clinically relevant reduction in BPD symptom severity (minimal clinical relevant difference (MIREDIF) on this scale is -3.0 points). Psychotherapy may be more effective at reducing self-harm compared to TAU (SMD -0.32, 95% CI -0.49 to -0.14; 13 trials, 616 participants; low-quality evidence), corresponding to a MD of -0.82 (95% CI -1.25 to 0.35) on the Deliberate Self-Harm Inventory Scale (range 0 to 34). The MIREDIF of -1.25 points was not reached. Suicide-related outcomes improved compared to TAU (SMD -0.34, 95% CI -0.57 to -0.11; 13 trials, 666 participants; low-quality evidence), corresponding to a MD of -0.11 (95% CI -0.19 to -0.034) on the Suicidal Attempt Self Injury Interview. The MIREDIF of -0.17 points was not reached. Compared to TAU, psychotherapy may result in an improvement in psychosocial functioning (SMD -0.45, 95% CI -0.68 to -0.22; 22 trials, 1314 participants; low-quality evidence), corresponding to a MD of -2.8 (95% CI -4.25 to -1.38), on the Global Assessment of Functioning Scale (range 0 to 100). The MIREDIF of -4.0 points was not reached. Our additional Trial Sequential Analysis on all primary outcomes reaching significance found that the required information size was reached in all cases. A subgroup analysis comparing the different types of psychotherapy compared to TAU showed no clear evidence of a difference for BPD severity and psychosocial functioning. Psychotherapy may reduce depressive symptoms compared to TAU but the evidence is very uncertain (SMD -0.39, 95% CI -0.61 to -0.17; 22 trials, 1568 participants; very low-quality evidence), corresponding to a MD of -2.45 points on the Hamilton Depression Scale (range 0 to 50). The MIREDIF of -3.0 points was not reached. BPD-specific psychotherapy did not reduce attrition compared with TAU. Adverse effects were unclear due to too few data. Psychotherapy versus waiting list or no treatment Greater improvements in BPD symptom severity (SMD -0.49, 95% CI -0.93 to -0.05; 3 trials, 161 participants), psychosocial functioning (SMD -0.56, 95% CI -1.01 to -0.11; 5 trials, 219 participants), and depression (SMD -1.28, 95% CI -2.21 to -0.34, 6 trials, 239 participants) were observed in participants receiving psychotherapy versus waiting list or no treatment (all low-quality evidence). No evidence of a difference was found for self-harm and suicide-related outcomes. Individual treatment approaches DBT and MBT have the highest numbers of primary trials, with DBT as subject of one-third of all included trials, followed by MBT with seven RCTs. Compared to TAU, DBT was more effective at reducing BPD severity (SMD -0.60, 95% CI -1.05 to -0.14; 3 trials, 149 participants), self-harm (SMD -0.28, 95% CI -0.48 to -0.07; 7 trials, 376 participants) and improving psychosocial functioning (SMD -0.36, 95% CI -0.69 to -0.03; 6 trials, 225 participants). MBT appears to be more effective than TAU at reducing self-harm (RR 0.62, 95% CI 0.49 to 0.80; 3 trials, 252 participants), suicidality (RR 0.10, 95% CI 0.04, 0.30, 3 trials, 218 participants) and depression (SMD -0.58, 95% CI -1.22 to 0.05, 4 trials, 333 participants). All findings are based on low-quality evidence. For secondary outcomes see review text.

AUTHORS' CONCLUSIONS

Our assessments showed beneficial effects on all primary outcomes in favour of BPD-tailored psychotherapy compared with TAU. However, only the outcome of BPD severity reached the MIREDIF-defined cut-off for a clinically meaningful improvement. Subgroup analyses found no evidence of a difference in effect estimates between the different types of therapies (compared to TAU) . The pooled analysis of psychotherapy versus waiting list or no treatment found significant improvement on BPD severity, psychosocial functioning and depression at end of treatment, but these findings were based on low-quality evidence, and the true magnitude of these effects is uncertain. No clear evidence of difference was found for self-harm and suicide-related outcomes. However, compared to TAU, we observed effects in favour of DBT for BPD severity, self-harm and psychosocial functioning and, for MBT, on self-harm and suicidality at end of treatment, but these were all based on low-quality evidence. Therefore, we are unsure whether these effects would alter with the addition of more data.

Perceptions of the "anorexic voice": A qualitative study of health care professionals

People with anorexia nervosa (AN) often report experiencing a highly critical inner voice (AV) focused on their eating, shape, and weight. There are promising preliminary findings for its role in the treatment of AN, and the support of staff is vital for the AV to be embedded in treatment, but their views remain unknown. The aims of this study were to undertake a qualitative exploration of the perceptions of the AV among health care professionals (HCPs) in specialist eating disorder services. A thematic analysis was applied to interviews with 15 HCPs, including nurses, therapists, psychiatrists, health care assistants, psychologists, and dietitians. Two overarching themes were identified: "The AV is a vehicle for increasing compassion" and "It's not a one-size-fits-all." The AV was seen as a means of developing and sustaining compassion, but participants noted that it does not resonate for all clients. All HCPs in this study believed that there was potential benefit in utilizing the AV in their work with people with AN, and it is likely that doing so would help to reduce burnout and frustration within clinical teams.

What are the key elements of cognitive analytic therapy for psychosis? A Delphi study

OBJECTIVE

There has been growing interest in the use of cognitive analytic therapy (CAT) with those facing experiences of psychosis. However, there is little research on how CAT is best applied to working with psychosis. This study aimed to identify what the key aspects of CAT for psychosis are or whether this approach requires adaptation when applied to those with experiences of psychosis, drawing on expert opinion.

METHOD

An adapted Delphi methodology was used. Items were generated during an initial workshop (N = 24) and then rated for agreement or importance via an online survey by a sample of experts with experience of CAT and working clinically with psychosis (N = 14).

RESULTS

Following two rounds of ratings, consensus was reached on most items. Additional comments emphasized the need to be flexible with regard to the varying needs of individual clients.

CONCLUSIONS

Results highlight the specific relational understanding of psychosis provided by CAT as one of the key elements of this approach. Responses emphasized the need for some level of adaptation to work with psychosis, including greater flexibility with regard to the treatment frame.

PRACTITIONER POINTS

When working with experiences of psychosis, aspects of the CAT model, such as session length, pacing, and duration of therapy, are open to change and may require modification. When working with experiences of psychosis, narrative reformulation letters and sequential diagrammatic reformulation (SDR) remain essential to the therapy. This Delphi methodology study essentially relies on opinion. Further empirical research could test assumptions about the most important or therapeutically effective components of CAT in psychosis. CAT is still not widely used in the context of psychosis limiting the pool of experts available for the current sample.

Cognitive analytic therapy: a review of the outcome evidence base for treatment

PURPOSE

This study reviews the quality of the extant outcome evidence for cognitive analytic therapy (CAT) to inform clinical practice and to stimulate a future CAT research strategy.

METHOD

An electronic search identified CAT efficacy and effectiveness studies and these were subject to systematic review. The methodological quality of studies meeting inclusion criteria were appraised using two validated research study quality checklists and studies were fitted to an established model of psychotherapy evaluation.

RESULTS

Twenty-five outcome studies met the inclusion criteria, including five randomized controlled trials. The CAT evidence base is predominated by small-scale practice-based studies, in typically complex and severe clinical populations - 44% were focal to the treatment of personality disorder. Although the quality of extant CAT evidence is generally sound (52% of studies were high quality), the depth and breadth of the evidence base is currently limited. Where comparisons with other modalities are available, CAT appears largely equivocal.

CONCLUSIONS

Cognitive analytic therapy is a popular and promising intervention for complex presentations. However, the evidence base currently lacks wider credibility due to having largely bypassed the rigours of the controlled phase of the hourglass model of psychotherapy evaluation. There is a particular need for further CAT outcome research with common mental health problems.

PRACTITIONER POINTS

CAT can be an effective intervention across a range of mental health difficulties. Consider a 24-session CAT contract for those patients presenting with complex and severe difficulties. Practice research networks could make a significant contribution to the CAT evidence base.