|Year : 2017 | Volume
| Issue : 2 | Page : 105-108
Empirical reality of dialectical behavioral therapy in borderline personality
MS Reddy, M Starlin Vijay
Asha Bipolar Clinic, Asha Hospital, Hyderabad, Telangana, India
|Date of Web Publication||28-Mar-2017|
M S Reddy
Asha Bipolar Clinic, Asha Hospital, Hyderabad, Telangana
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Reddy M S, Vijay M S. Empirical reality of dialectical behavioral therapy in borderline personality. Indian J Psychol Med 2017;39:105-8
|How to cite this URL:|
Reddy M S, Vijay M S. Empirical reality of dialectical behavioral therapy in borderline personality. Indian J Psychol Med [serial online] 2017 [cited 2020 Feb 29];39:105-8. Available from: http://www.ijpm.info/text.asp?2017/39/2/105/203110
| Introduction|| |
Borderline personality disorder (also known as emotionally unstable personality disorder) is a complex mental condition consisting of affective, cognitive-perceptual, anxiety, and stress-coping domains. Mental health professionals understand the problems in delivering required care and to a varying degree feel the pessimism with regard to its treatment. In this background, past two decades have witnessed various therapeutic attempts which over time have instilled much-needed optimism with the condition's treatment and prognosis.
One such therapeutic attempt is dialectical behavioral therapy (henceforth, DBT), which was introduced in the early 1990s by Linehan et al. DBT has ever since garnered support of guidelines of many countries and has also been included in the American Managed Care system. While there are also other evidence-based therapies such as mentalization-based therapy, transference-focused therapy, schema-focused therapy, and dynamic deconstructive psychotherapy, none have found such popular appeal and encouragement by the professional guilds of psychiatry and psychology as did DBT. Hence, in this article, we will review the empirical evidence about DBT and examine whether its reputation equals its scientific basis.
| What Is Dialectical Behavioral Therapy?|| |
DBT is an integrated psychotherapy comprising change techniques based on behavioral therapy on the one hand and acceptance techniques based on Zen Buddhism on the other hand. Both these techniques are used in a dialectic way to help patients handle and navigate through their complex affective and cognitive states. The therapist has to move constantly between these two approaches, and to traverse this dialectic terrain, a personal practice of Zen Mindfulness and regular skills training is needed. Unlike cognitive behavioral therapy (CBT) which has a near-complete integration of its component cognitive and behavioral theories, DBT lacks such a good fit between the behavioral and dialectic theories because of their radically different philosophical presuppositions; for example – the behavioral stance would like to change a “problem behavior” to an “adaptive behavior” while the other stance might suggest a nonjudgmental acceptance of the same behavior and thereby leading to a stalemate. Acceptance techniques are taught through the practice of various components of mindfulness. Dialectical theory presupposes that there is no one truth and therefore works toward an integration of multiple perspectives within a particular complex human problem.
DBT model has four stages in the treatment of borderline personality. Each Stage (I–IV) has certain specific goals, such as:
- Reducing suicidal, therapy-interfering, and quality-of-life-interfering behaviors, and improving behavioral skills
- Treating issues related with past trauma. For example, exposure techniques for posttraumatic stress disorder
- Development of self-esteem, reclaiming ordinary happiness, and improving day-to-day behavioral skills
- Development of capacity for optimum experiencing and finding a higher purpose.
Stage I may take anywhere from 3 to 12 months (usually, it takes at least a year ) and then the therapy moves onto Stages II–IV. The patient has to attend one individual therapy session and a group skills training session in a week and also has to do the regular homework such as diary records. There are two important components during the therapy which are central–regular group supervision for individual and group therapists, and 24/7 patient access to the therapist by telephone to handle emergencies.
| Empirical Evidence|| |
DBT is the only available therapy which led to creation of a large research data in patients with borderline personality. There are multiple studies done by Linehan over the last three decades. Independent researchers like Verheul et al., Clarkin et al., and McMain et al. have also investigated using DBT.
Evidence in parasuicide (this term used in the studies by Linehan includes suicide attempts and nonsuicidal self-injury)
Recent Cochrane review  reports that DBT when compared to treatment-as-usual (TAU) and community-treatment-by-experts (CTBE) shows no difference in the proportion of patients repeating self-harm or other outcomes such as suicidal ideation and depression, though frequency of repetition of self-harm reduces. Only one study  with weak methodology and small sample (n = 24) which compared DBT with client-centered therapy (which is not studied or used in borderline personality management) showed difference in impulsivity, suicidality, parasuicidality, and depression. Another recent article which reviewed the impact of treatment intensity on suicidal acts and depression  concluded that more intensive therapies (i.e., more than 100 h per year) are not superior to less intensive therapies (i.e., <100 h in a year). They have found that CBT for personality disorder with 30 h in a year is not inferior to DBT with 84 h or more in a year.
Evidence in other domains
There is a lack of evidence favoring DBT on core personality features such as interpersonal instability, chronic emptiness, and boredom and identity disturbance or associated symptoms such as depression, suicidal ideation, survival and coping beliefs, overall life satisfaction, work performance, and anxious rumination.,, DBT was no different in reducing depression than any comparator, be it TAU, CTBE, or general psychiatric management (GPM). All therapies showed a reduction in depression over time.
Except for three studies, which are discussed below, all the other studies have weak methodology and small sample sizes., In the majority of studies, DBT was compared to TAU, which has its own problems such as:
- It is difficult to know what treatment is given in TAU and it may change over a period of the study
- TAU sessions are not documented or recorded and thereby adherence and competence ratings cannot be done
- Patients in TAU comparatively get very less hours of treatment than in active structured treatments.
According to Chambless and Hollon,, psychological therapies have to fulfill five criteria to be called as “Empirically Supported Treatments.” These are superiority or equivalence to established/another treatment in studies with good methodological rigor (n = at least 30 per group); at least nine single-case design experiments showing efficacy; availability of manuals; clear specification of patient characteristics; and effects should be demonstrated by at least two independent teams. Ost argues in a review of study methodologies  that DBT randomized controlled trials (RCTs) have significantly less stringent research methodology than CBT studies and that they do not fulfill criteria for empirically supported treatments. A 2009 RCT with 180 samples and good methodology  suggests equivalence between DBT and GPM, thereby making DBT “probable-empirically supported treatment”
We will discuss only three studies which are rigorous and show us the empirical reality of DBT. Strengths of these studies being adequate power, investigators with a balance of theoretical allegiances (two studies ,), and investigated by an independent group (two studies ,) [Table 1].
|Table 1: Comparison of three well-designed and adequately powered studies investigating the comparative effectiveness of dialectical behavior therapy versus other valid treatments|
Click here to view
These studies show no statistically significant between-group differences for pathology-related outcomes, though there are marginal or very small effects in terms of suicidality, anger, depression, etc. There is a significant difference in the treatment hours between DBT and comparators. Follow-up of Linehan's initial studies shows high dropout rate and loss of efficacy over time., Researchers recommend an adequately powered head-to-head comparison using a rigorous methodology with a structured psychotherapy with good evidence base in borderline personality management such as transference-focused, schema-focused, or mentalization-based therapy instead of comparison with waiting list or TAU groups. Reviewers have also observed that common team approach, easy access, and intensive relationship focus in therapy and supervision of therapists by peers  are common features between psychodynamic therapies and DBT which have shown positive results in borderline personality management.
| Limitations of Dialectical Behavioral Therapy Research and Clinical Implications|| |
- DBT has a demanding model of therapy. A patient has to attend two separate sessions which include 1 h of individual therapy and 2 h of group skills training every week along with regular homework assignments over at least 1 year of treatment. Therapist has to be available 24/7 for providing emergency behavioral coaching, however rules can be laid down in this to protect therapist from burnout. It can be very costly because of multiple sessions and involvement of highly qualified therapists if it is not delivered through the public health-care system
- All the DBT studies were of 1 year duration, however as pointed out earlier, Stage I itself many a times takes up to 1 year. Hence, we cannot suppose that studies have tested the whole therapy. Instead, they have tested the usefulness of just one, albeit an important stage of therapy. This might be the reason for the lack of evidence in domains of pathology other than parasuicide
- DBT needs therapists who are highly qualified (many studies by Linehan had doctoral-level professionals) and who have to be under regular supervision by attending 2-h consultation team meeting every week for learning skills and supervision. This presents problems with dissemination and resource usage, especially in nonacademic centers, community, and resource-poor settings like India
- Many reviewers including APA practice guidelines , suggest the need for studies by independent investigators. This is important because it ensures generalizability of findings and is an important criterion (criteria V) for empirically supported treatments
- DBT has consistent evidence exclusively for reduction in frequency of suicide reattempts and also has evidence in those with eating disorders and substance use disorders; based on this, some , have suggested that either we have to change from DBT, after the reduction of suicidality, to another therapy which is more targeted at core features of borderline personality; or we have to assume that DBT is a specific therapy for patients (mainly female) with life-threatening impulse control disorders rather than borderline personality disorder per se
- DBT when compared to other structured therapies does not fare well with regard to core features of borderline personality disorder except showing equivalence with regard to improvement in suicide attempts
- Although a Cochrane review concludes that psychotherapies, in general, are effective in the management of borderline personality, it is not altogether clear as to the role of medication in the management and there are no rigorous or adequately powered studies comparing medication and psychotherapy. This is important to consider because selective serotonin reuptake inhibitors, antipsychotic agents, and mood stabilizers are commonly used in clinical settings for the borderline personality management.
| Conclusion|| |
DBT has to be appreciated as its research has instilled the much-needed optimism into the management of borderline personality disorder management in the early 1990s. DBT has specific utility in addressing suicide attempts in borderline personality without being generally effective in the overall personality management. However, the review of its research and discussion of its limitations show that the empirical reality is very different from its reputation and popular exaggeration. There is a need for future studies to design adequately powered RCTs comparing it to other structured therapies.
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