Psychological therapies for bipolar disorder: the role of model-driven approaches to therapy integration

A guide to behavioural experiments in bipolar disorder

Behavioural experiments are an important component of cognitive-behavioural therapy. However, there exists little up-to-date guidance on how to conduct these in people with a diagnosis of bipolar disorder. This paper provides recommendations on how to conduct behavioural experiments in this population. The aim is to upskill and empower clinicians to conduct behavioural experiments. The paper combines the expertise of senior clinicians working in the United Kingdom. The article starts by providing general advice on conducting behavioural experiments in people with bipolar disorder. It then offers specific examples of behavioural experiments targeting cognitions around the uncontrollability and danger of affective states, and related behavioural strategies, which have been implicated in the maintenance of bipolar mood swings. The article finishes by providing examples of behavioural experiments for non-mood related difficulties that commonly occur with bipolar experiences including perfectionistic thinking, need for approval, and intrusive memories. Behavioural experiments offer a useful therapeutic technique for instigating cognitive and behavioural change in bipolar disorder. Conducted sensitively and collaboratively, in line with people's recovery-focused goals, behavioural experiments can be used to overcome mood- and non-mood related difficulties.

Mood instability and impulsivity as trait predictors of suicidal thoughts

OBJECTIVES

Impulsivity, the tendency to act quickly without adequate planning or concern for consequences, is a commonly cited risk factor for suicidal thoughts and behaviour. There are many definitions of impulsivity and how it relates to suicidality is not well understood. Mood instability, which describes frequent fluctuations of mood over time, is a concept related to impulsivity that may help explain this relationship. The purpose of this study was to determine whether impulsivity could predict suicidal thoughts after controlling for mood instability.

METHODS

This study utilized longitudinal data from the 2000 Adult Psychiatric Morbidity Survey (N = 2,406). There was a time interval of 18 months between the two waves of the study. Trait impulsivity and mood instability were measured with the Structured Clinical Interview for DSM-IV Axis II Personality Disorders. Logistic regression analyses were used to evaluate baseline impulsivity and mood instability as predictors of future suicidal thoughts.

RESULTS

Impulsivity significantly predicted the presence of suicidal thoughts, but this effect became non-significant with mood instability included in the same model.

CONCLUSIONS

Impulsivity may be a redundant concept when predicting future suicidal thoughts if mood instability is considered. The significance is that research and therapy focusing on mood instability along with impulsivity may be useful in treating the suicidal patient.

PRACTITIONER POINTS

Mood instability and impulsivity both predict future suicidal thoughts. Impulsivity does not predict suicidal thoughts after controlling for mood instability. Assessing and treating mood instability could be important aspects of suicide prevention and risk management.

Mood stability versus mood instability in bipolar disorder: a possible role for emotional mental imagery

A cognitive model of bipolar disorder suggests that mental imagery acts as an emotional amplifier of mood and may be heightened in bipolar disorder. First, we tested whether patients with bipolar disorder would score higher on mental imagery measures than a matched healthy control group. Second, we examined differences in imagery between patients divided into groups according to their level of mood stability. Mood ratings over approximately 6-months, made using a mobile phone messaging system, were used to divide patients into stable or unstable groups. Clinician decisions of mood stability were corroborated with statistical analysis. Results showed (I) compared to healthy controls, patients with bipolar disorder had significantly higher scores for general mental imagery use, more vivid imagery of future events, higher levels of intrusive prospective imagery, and more extreme imagery-based interpretation bias; (II) compared to patients with stable mood, patients with unstable mood had higher levels of intrusive prospective imagery, and this correlated highly with their current levels of anxiety and depression. The findings were consistent with predictions. Further investigation of imagery in bipolar disorder appears warranted as it may highlight processes that contribute to mood instability with relevance for cognitive behaviour therapy.

Attributions for Hallucinations in Bipolar Affective Disorder

Background: Attributions for hallucinations in the “schizophrenia” spectrum disorders have been subject to extensive investigation; however, in comparison very little is known about attributions for hallucinations in the bipolar disorders spectrum. Aims: This preliminary study is an attempt to investigate attributions for hallucinations in bipolar disorder with regard to prevalence, modality and mood state. Method: Forty participants were recruited from a larger randomized control trial into CBT for bipolar disorder and asked to provide information related to attributions for hallucinations both in and out of episode. Data was collected using a specially designed instrument based on the Belief about Voices Questionnaire (BAVQ). Results: Just under half of the participants reported experiencing true hallucinations during their illness. Participants tended to report visual hallucinations in mania and auditory hallucinations in depression. The vast majority of participants attributed hallucinations to illness when out of episode, and unlike in previously reported analyses of attributions for hallucinations in the schizophrenia spectrum, malevolent/omnipotent attributions were comparatively rare. Conclusions: Attributions for hallucinations in bipolar disorder may be clinically distinct from attributions previously observed in the schizophrenia spectrum, and CBT aimed at reducing the distress associated with these attributions may have to be tailored accordingly.

Enhancing medication adherence in patients with bipolar disorder

OBJECTIVES

Medication adherence contributes to the efficacy-effectiveness gap of treatment in patients with bipolar disorder. This paper aims to examine the challenges involved in improving medication adherence in bipolar disorder, and to extract some suggestions for future directions from the core psychosocial studies that have targeted adherence as a primary or secondary outcome.

METHODS

A search was conducted for articles that focused on medication adherence in bipolar disorder, with emphasis on publications from 1996 to 2008 using Medline, Web of Science, CINAHL PLUS, and PsychINFO. The following key words were used: adherence, compliance, alliance, adherence assessment, adherence measurement, risk factors, psychosocial interventions, and psycho-education.

RESULTS

There are a number of challenges to understanding non-adherence including the difficulty in defining and measuring it and the various risk factors that need to be considered when aiming to enhance adherence. Nevertheless, the importance of addressing adherence is evidenced by the connection between adherence problems and poor outcome. Despite these challenges, a number of small psychosocial studies targeting adherence as a primary outcome point to the potential usefulness of psycho-education aimed at improving knowledge, attitudes, and adherence behavior, but more large scale randomized controlled trials are needed in this area. Evidence of improved outcomes from larger randomized controlled trials of psychosocial interventions that target medication adherence as a secondary outcome suggests that tackling other factors besides medication adherence may also be an advantage. While some of these larger studies demonstrate an improvement in medication adherence, the translation of these interventions into real life settings may not always be practical. A person centered approach that considers risk factors for non-adherence and barriers to other health behaviors may assist with the development of more targeted briefer interventions. Integral to improving medication adherence is the delivery of psycho-education, and attention needs to be paid to the implementation, and timing of psycho-education. Progress in the understanding of how medicines work may add to the credibility of psycho-education in the future.

CONCLUSIONS

Enhancement of treatment adherence in bipolar patients is a necessary and promising management component as an adjunct to pharmacotherapy. The current literature on psychosocial interventions that target medication adherence in bipolar disorder points to the possibility of refining the concept of non-adherence and adapting psycho-education to the needs of certain subgroups of people with bipolar disorder. Large scale randomized controlled trials of briefer or more condensed interventions are needed that can inform clinical practice.

Is cognitive-behavioural therapy more effective than psychoeducation in bipolar disorder?

OBJECTIVE

Psychosocial research in bipolar disorder (BD) has not yet assessed the relative benefits of a short course of psychoeducation (PE), compared with a longer course of cognitive-behavioural therapy (CBT) containing psychoeducational principles. This pilot study evaluated the efficacy and added benefit of adding a course of CBT to a standard course of brief PE, as maintenance therapy for BD.

METHOD

Seventy-nine consenting adult men and women with BD on stable medication regimens, who were in full or partial remission from an index episode (BD I = 52; BD II = 27), were randomized to receive either 7 sessions of individual PE, or 7 sessions of PE followed by 13 additional individual sessions of CBT. Weekly mood and medication adherence was rated using the National Institute of Mental Health's Life Chart Method, while psychosocial functioning and mental health use were assessed monthly.

RESULTS

Forty-six participants completed the entire study. Participants who received CBT in addition to PE experienced 50% fewer days of depressed mood over the course of one year. Participants who received PE alone had more antidepressant increases compared with those who received CBT. There were no group differences in hospitalization rates, medication adherence, psychosocial functioning, or mental health use.

CONCLUSIONS

Pilot data from this real-world study suggest that even after medication treatment has been optimized, a longer course of adjunctive CBT may offer some additional benefits over a shorter course of PE alone for the maintenance treatment of BD. Larger randomized controlled trials with equal treatment lengths are indicated.

Family interventions for bipolar disorder

BACKGROUND

Pharmacological treatments are the principal intervention for bipolar disorder. Alone, however, they are not sufficient to control symptoms and maintain psychosocial functioning. Adjunctive psychosocial interventions may help to improve the patient's condition and the course of the illness. Family interventions are deserving of special attention, since they may help to relieve the burden of care borne by relatives and caregivers, which in turn may facilitate the task of supporting the patient.

OBJECTIVES

The objective of this review was to investigate the effectiveness of family interventions in the treatment of bipolar disorder compared with no intervention and other forms of intervention.

SEARCH STRATEGY

We searched the electronic databases CCDANRCT-Studies and CCDANCTR-References on 1/8/2007, CENTRAL (2006-3), MEDLINE (2006), EMBASE (2006) and LILACS (2006), and searched the reference lists of included studies. We also made personal contact with authors.

SELECTION CRITERIA

We included randomised controlled trials (RCTs) and quasi-randomised trials. Participants were people with bipolar disorder and their relatives or caregivers; family psychosocial interventions of any type were considered; primary outcomes were changes in the status of symptoms and relapse rates.

DATA COLLECTION AND ANALYSIS

Data were independently extracted by two review authors. Quality assessment of included studies was carried out. The findings were presented descriptively. Where there were sufficient studies, dichotomous data were combined using relative risk, and continuous data were combined using weighted mean difference, with their 95% CIs.

MAIN RESULTS

Seven RCTs were included in the review, involving a total of 393 participants. All of the included studies assessed psychoeducational methods, and one study also assessed a type of systems psychotherapy. In all trials, participants continued to receive pharmacotherapy treatment. Due to the diversity of interventions, outcome measures and endpoints used across studies, it was not possible to perform meta-analyses for primary outcomes. Five studies compared a variety of family interventions, involving carers, families or spouses, against no intervention, with individual findings indicating no significant added effect for family interventions. Three studies compared one type or modality of family intervention against another family intervention, with inconsistent findings.

AUTHORS' CONCLUSIONS

To date there is only a small and heterogeneous body of evidence on the effectiveness of family oriented approaches for bipolar disorder, and it is not yet possible to draw any definite conclusions to support their use as an adjunctive treatment for bipolar disorder. Further well designed RCTs should be a research priority.

Efficacy of psychoeducational approaches on bipolar disorders: a review of the literature

BACKGROUND

To evaluate the efficacy of psychoeducation in the treatment of bipolar disorder according to specific therapeutic targets such as treatment compliance, patients' and families' knowledge of the illness and its treatments, relapse prevention, symptomatic (depressive or (hypo)manic) phases of the illness or social and occupational functioning.

METHODS

A systematic review of the literature published on psychoeducation up to July 2006 was carried out using the main electronic data bases (Medline, PubMed). The key words employed included bipolar disorder, psychoeducation, depression, mania, relapse prevention and treatment compliance.

RESULTS

Although the methodological shortcomings of the early studies must be taken into account, most data accumulated to date suggest that psychoeducation, used alone or as a component of more complex interventions, makes it possible to improve the course of the illness, notably by increasing the patients' and their families' knowledge of the disorder and of treatment options, by decreasing the risk of (hypo)manic or depressive relapse and of hospitalization and by improving treatment compliance.

LIMITATIONS

More studies based solely on psychoeducation, rather than psychoeducation as part of a multicomponent approach, are needed to confirm the efficacy of PE reported to date.

CONCLUSIONS

Given the results published to date, psychoeducation should be part of the integrated treatment of bipolar disorder. As a complement to pharmacotherapy, psychoeducation delivered individually or in a group setting constitutes a first-line psychological intervention. Applicable to a majority of patients and their families, it can be delivered by a wide range of health professionals trained in this approach.

Pilot of group intervention for bipolar disorder

Objective. This pilot study aimed to determine whether a group based psychosocial intervention reduced rates of relapse, improved function and quality of life in people with bipolar disorder. Method. Patients with a diagnosis of bipolar disorder, types I and II were recruited in the Geelong Region of Victoria. Patients were assessed at baseline for psychiatric status, mood episode, function, and medication adherence. They were randomly assigned to either the intervention arm, a 12-week, structured group-based therapy as an adjunct to treatment as usual or the control arm, which consisted of treatment as usual, plus weekly phone calls. Participants were then followed up for a period of 3 months and assessed by a researcher blinded to treatment and control interventions. Results. Functioning as measured by the Global Assessment of Functioning (GAF) was significantly improved in the intervention group (P=0.008). The social relationships subscale on the (WHOQoL-BREF) showed significant results (P<0.05 level). There was also a positive trend in reduction of relapses in the intervention group. Conclusion. The use of a group intervention for bipolar disorder as an adjunct to usual treatment has potential benefits, both in reduction of relapse and improvement in functionality, and may be a cost effective way of delivering psychosocial treatments.

How well do psychosocial interventions work in bipolar disorder?

OBJECTIVE

Although medication is the mainstay of treatment for bipolar disorder, several adjunctive psychosocial interventions have been manualized over the last decade. This paper's objective is to empirically evaluate the different treatment approaches.

METHOD

We conducted a systematic review of the recent literature pertaining to psychosocial interventions in bipolar, using MEDLINE and PsycINFO. Bibliographies of papers were scrutinized for further relevant references. Articles published from 1999 up to and including 2006 were reviewed. Randomized controlled trials were emphasized.

CONCLUSIONS

Although psychological models of bipolar disorder fail to inform the psychotherapy treatment to the same extent as in unipolar depression, manualized adjunctive, short-term psychotherapies have been shown to offer fairly consistent benefits to bipolar disorder patients. Cognitive-behavioural therapy, family-focused therapy, and psychoeducation offer the most robust efficacy in regard to relapse prevention, while interpersonal therapy and cognitive-behavioural therapy may offer more benefit in treating residual depressive symptoms.

Appraisal of hypomania-relevant experiences: development of a questionnaire to assess positive self-dispositional appraisals in bipolar and behavioural high risk samples

BACKGROUND

This paper reports two studies concerned with the development and validation of the Hypomania Interpretations Questionnaire (HIQ) designed to assess positive self-dispositional appraisals for hypomania-relevant experiences.

METHODS

Study 1: 203 late adolescent participants completed the HIQ along with additional measures of general symptom interpretation, dysfunctional attitudes and hypomanic personality. Study 2: 56 adults with a self-reported diagnosis of bipolar disorder and 39 controls completed a revised HIQ and a measure of current mood symptoms.

RESULTS

Study 1: The final 10 item HIQ had two subscales: a) positive self-dispositional appraisals (HIQ-H); and b) normalising appraisals (HIQ-NE). Internal and test-retest reliability were adequate. Hypomanic personality scores were significantly and uniquely predicted by recent hypomania-relevant experiences and HIQ-H score. Study 2: HIQ remained internally reliable within this sample. Bipolar participants (BD) reported more subsyndromal mood symptoms than controls (C) and scored significantly higher on HIQ-H even after covarying for these. HIQ-H was the primary predictor of diagnostic group. Its ability to discriminate BD from C was confirmed by ROC analysis.

LIMITATIONS

The studies are cross-sectional and did not include non-bipolar psychiatric control groups.

CONCLUSIONS

HIQ appears to be a reliable and valid measure for the assessment of positive self-dispositional appraisals which seem to be linked to both hypomanic personality and bipolar disorder. The relevance of such appraisals for symptom exacerbation, relapse and psychological treatment would merit future investigation.