Falk Leichsenring

Effectiveness of Long-term Psychodynamic Psychotherapy: A Meta-analysis

CONTEXT The place of long-term psychodynamic psychotherapy (LTPP) within psychiatry is controversial. Convincing outcome research for LTPP has been lacking. OBJECTIVE To examine the effects of LTPP, especially in complex mental disorders, ie, patients with personality disorders, chronic mental disorders, multiple mental disorders, and complex depressive and anxiety disorders (ie, associated with chronic course and/or multiple mental disorders), by performing a meta-analysis. DATA SOURCES Studies of LTPP published between January 1, 1960, and May 31, 2008, were identified by a computerized search using MEDLINE, PsycINFO, and Current Contents, supplemented by contact with experts in the field. STUDY SELECTION Only studies that used individual psychodynamic psychotherapy lasting for at least a year, or 50 sessions; had a prospective design; and reported reliable outcome measures were included. Randomized controlled trials (RCTs) and observational studies were considered. Twenty-three studies involving a total of 1053 patients were included (11 RCTs and 12 observational studies). DATA EXTRACTION Information on study characteristics and treatment outcome was extracted by 2 independent raters. Effect sizes were calculated for overall effectiveness, target problems, general psychiatric symptoms, personality functioning, and social functioning. To examine the stability of outcome, effect sizes were calculated separately for end-of-therapy and follow-up assessment. RESULTS According to comparative analyses of controlled trials, LTPP showed significantly higher outcomes in overall effectiveness, target problems, and personality functioning than shorter forms of psychotherapy. With regard to overall effectiveness, a between-group effect size of 1.8 (95% confidence interval [CI], 0.7-3.4) indicated that after treatment with LTPP patients with complex mental disorders on average were better off than 96% of the patients in the comparison groups (P = .002). According to subgroup analyses, LTPP yielded significant, large, and stable within-group effect sizes across various and particularly complex mental disorders (range, 0.78-1.98). CONCLUSIONS There is evidence that LTPP is an effective treatment for complex mental disorders. Further research should address the outcome of LTPP in specific mental disorders and should include cost-effectiveness analyses.

COMPARATIVE EFFECTS OF SHORT-TERM PSYCHODYNAMIC PSYCHOTHERAPY AND COGNITIVE-BEHAVIORAL THERAPY IN DEPRESSION: A META-ANALYTIC APPROACH

UNLABELLED This article reviews the efficacy of short-term psychodynamic psychotherapy (STPP) in depression compared to cognitive-behavioral therapy (CBT) or behavioral therapy (BT). In this review, only studies in which at least 13 therapy sessions were performed have been included, and a sufficient number of patients per group were treated (N > or = 20). With regard to outcome criteria, the results were reviewed for improvements in depressive symptoms, general psychiatric symptoms, and social functioning. Six studies met the inclusion criteria. RESULTS In 58 of the 60 comparisons (97%) performed in the six studies and their follow-ups, no significant difference could be detected between STPP and CBT/BT concerning the effects in depressive symptoms, general psychiatric symptomatology, and social functioning. Furthermore, STPP and CBT/BT did not differ significantly with regard to the patients that were judged as remitted or improved. According to a meta-analytic procedure described by R. Rosenthal (1991) the studies do not differ significantly with regard to the patients that were judged as remitted or improved after treatment with STPP or CBT/BT. The mean difference between STPP and CBT/BT concerning the number of patients that were judged as remitted or improved corresponds to a small effect size (post-assessment: phi = 0.08, follow-up assessment: phi = 0.12). Thus, STPP and CBT/BT seem to be equally effective methods in the treatment of depression. However, because of the small number of studies which met the inclusion criteria, this result can only be preliminary. Furthermore, it applies only to the specific forms of STPP that were examined in the selected studies and cannot be generalized to other forms of STPP. Further studies are needed to examine the effects of specific forms of STPP in both controlled and naturalistic settings. Furthermore, there are findings indicating that 16-20 sessions of both STPP and CBT/BT are insufficient for most patients to achieve lasting remission. Future studies should address the effects of longer treatments of depression.

Are psychodynamic and psychoanalytic therapies effective?: A review of empirical data

There is a need for empirical outcome research in psychodynamic and psychoanalytic therapy. However, both the approach of empirically supported therapies (EST) and the procedures of evidence‐based medicine (EBM) have severe limitations making randomised controlled trials (RCTs) an absolute standard. After a critical discussion of this approach, the author reviews the empirical evidence for the efficacy of psychodynamic psychotherapy in specific psychiatric disorders. The review aims to identify for which psychiatric disorders RCTs of specific models of psychodynamic psychotherapy are available and for which they are lacking, thus providing a basis for planning further research. In addition, results of process research of psychodynamic psychotherapy are presented. As the methodology of RCTs is not appropriate for psychoanalytic therapy, effectiveness studies of psychoanalytic therapy are reviewed as well. Studies of psychodynamic psychotherapy published between 1960 and 2004 were identifed by a computerised search using Medline, PsycINFO and Current Contents. In addition, textbooks and journal articles were used. Twenty‐two RCTs were identifed of which 64% had not been included in the 1998 report by Chambless and Hollon. According to the results, for the following psychiatric disorders at least one RCT providing evidence for the efficacy of psychodynamic psychotherapy was identifed: depressive disorders (4 RCTs), anxiety disorders (1 RCT), post‐traumatic stress disorder (1 RCT), somatoform disorder (4 RCTs), bulimia nervosa (3 RCTs), anorexia nervosa (2 RCTs), borderline personality disorder (2 RCTs), Cluster C personality disorder (1 RCT), and substance‐related disorders (4 RCTs). According to results of process research, outcome in psychodynamic psychotherapy is related to the competent delivery of therapeutic techniques and to the development of a therapeutic alliance. With regard to psychoanalytic therapy, controlled quasi‐experimental effectiveness studies provide evidence that psychoanalytic therapy is (1) more effective than no treatment or treatment as usual, and (2) more effective than shorter forms of psychodynamic therapy. Conclusions are drawn for future research.

Long-term psychodynamic psychotherapy in complex mental disorders: update of a meta-analysis

BACKGROUND Dose-effect relationship data suggest that short-term psychotherapy is insufficient for many patients with chronic distress or personality disorders (complex mental disorders). AIMS To examine the comparative efficacy of long-term psychodynamic psychotherapy (LTPP) in complex mental disorders. METHOD We conducted a meta-analysis of controlled trials of LTPP fulfilling the following inclusion criteria: therapy lasting for at least a year or 50 sessions; active comparison conditions; prospective design; reliable and valid outcome measures; treatments terminated. Ten studies with 971 patients were included. RESULTS Between-group effect sizes in favour of LTPP compared with less intensive (lower dose) forms of psychotherapy ranged between 0.44 and 0.68. CONCLUSIONS Results suggest that LTPP is superior to less intensive forms of psychotherapy in complex mental disorders. Further research on long-term psychotherapy is needed, not only for psychodynamic psychotherapy, but also for other therapies.

Psychodynamic Therapy and Cognitive-Behavioral Therapy in Social Anxiety Disorder: A Multicenter Randomized Controlled Trial

OBJECTIVE Various approaches to cognitive-behavioral therapy (CBT) have been shown to be effective for social anxiety disorder. For psychodynamic therapy, evidence for efficacy in this disorder is scant. The authors tested the efficacy of psychodynamic therapy and CBT in social anxiety disorder in a multicenter randomized controlled trial. METHOD In an outpatient setting, 495 patients with social anxiety disorder were randomly assigned to manual-guided CBT (N=209), manual-guided psychodynamic therapy (N=207), or a waiting list condition (N=79). Assessments were made at baseline and at end of treatment. Primary outcome measures were rates of remission and response, based on the Liebowitz Social Anxiety Scale applied by raters blind to group assignment. Several secondary measures were assessed as well. RESULTS Remission rates in the CBT, psychodynamic therapy, and waiting list groups were 36%, 26%, and 9%, respectively. Response rates were 60%, 52%, and 15%, respectively. CBT and psychodynamic therapy were significantly superior to waiting list for both remission and response. CBT was significantly superior to psychodynamic therapy for remission but not for response. Between-group effect sizes for remission and response were small. Secondary outcome measures showed significant differences in favor of CBT for measures of social phobia and interpersonal problems, but not for depression. CONCLUSIONS CBT and psychodynamic therapy were both efficacious in treating social anxiety disorder, but there were significant differences in favor of CBT. For CBT, the response rate was comparable to rates reported in Swedish and German studies in recent years. For psychodynamic therapy, the response rate was comparable to rates reported for pharmacotherapy and cognitive-behavioral group therapy.

Development and First Results of the Borderline Personality Inventory: A Self-Report Instrument for Assessing Borderline Personality Organization

This article reports the development of a short 53-item true-false self-report instrument, the Borderline Personality Inventory (BPI). The BPI is based on Kernbergs (1984) concept of borderline personality organization. However, the diagnostic criteria are compatible with both the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; American Psychiatric Association, 1994) and Gundersons (Gunderson & Kolb, 1978) concept of borderline personality disorder (BPD). The BPI contains scales for assessing identity diffusion, primitive defense mechanisms, and reality testing. Another scale refers to the fear of closeness. The construction of the scales is based on the results of a factor analysis. As a result of several studies, a cutoff score is proposed to make the diagnosis of a BPD. Thus, the BPI combines dimensional and categorical models of BPD. The BPI was tested in several studies. According to the results, internal consistency and retest reliability are satisfactory (Cronbachs alpha = .68-.91, rtt = .73-.89). Results for sensitivity are .85 to .89, and results for specificity .78 to .89. The BPI identifies borderline patients in high agreement with Kernbergs criteria of borderline personality organization, Diagnostic and Statistical Manual of Mental Disorders (3rd ed., rev.; American Psychiatric Association, 1987) criteria of BPD and Gundersons criteria of BPD. The BPI is recommended as a screening instrument for borderline personality organization and BPD and for dimensional research of borderline features in Axis I and Axis II disorders.

Cost-of-illness studies and cost-effectiveness analyses in anxiety disorders: A systematic review

AIMS To review cost-of-illness studies (COI) and cost-effectiveness analyses (CEA) conducted for anxiety disorders. METHODS Based on a database search in Pubmed, PsychINFO and NHS EED, studies were classified according to various criteria. Cost data were inflated and converted to 2005 US-

Psychodynamic psychotherapy: A systematic review of techniques, indications and empirical evidence

purchasing power parities (PPP). RESULTS We finally identified 20 COI and 11 CEA of which most concentrated on panic disorder (PD) and generalized anxiety disorder (GAD). Differing inclusion of cost categories limited comparability of COI. PD and GAD tended to show higher direct costs per case, but lower direct cost per inhabitant than social and specific phobias. Different measures of effectiveness severely limited comparability of CEA. Overall CEA analysed 26 therapeutic or interventional strategies mostly compared to standard treatment, 8 of them resulting in lower better effectiveness and costs than the comparator. CONCLUSIONS Anxiety disorders cause considerable costs. More research on phobias, more standardised inclusion of cost categories in COI and a wider use of comparable effectiveness measures (like QALYs) in CEA is needed.

Is Alexithymia Associated with Specific Mental Disorders

PURPOSE Psychodynamic psychotherapy is one of the most frequently applied methods of psychotherapy in clinical practice. However, it is the subject of controversial discussion, especially with regard to empirical evidence. In this article we aim to give an up-to-date description of the treatment and to review the available empirical evidence. Evidence is reviewed for both efficacy and mechanisms of change of short- and moderate-term psychodynamic psychotherapy. Furthermore, results of effectiveness studies of long-term psychoanalytic therapy are reviewed. METHODS With regard to efficacy, a protocol for a Cochrane review for (short-term) psychodynamic psychotherapy is available specifying inclusion criteria for efficacy studies. RESULTS Twenty-three randomized controlled trials of manual-guided psychodynamic psychotherapy applied in specific psychiatric disorders provided evidence that psychodynamic psychotherapy is superior to control conditions (treatment-as-usual or wait list) and, on the whole, as effective as already established treatments (e.g. cognitive-behavioural therapy) in specific psychiatric disorders. With regard to process research, central assumptions of psychodynamic psychotherapy were confirmed by empirical studies. CONCLUSIONS Further research should include both efficacy studies (on specific forms of psychodynamic psychotherapy in specific mental disorders) and effectiveness studies complementing the results from experimental research settings. Future process research should address the complex interactions among interventions, patients level of functioning, helping alliance and outcome.

The Göttingen study of psychoanalytic therapy: first results

Background: Alexithymia is characterized by restrictions in the perception, differentiation and regulation of affects. It is considered to be an important vulnerability factor for the development of mental disorders. Little is known, however, of whether alexithymia is associated with specific mental disorders. Sampling and Methods: Data from 1,461 patients of an outpatient clinic for psychosomatic medicine with various mental disorders (depressive disorders, anxiety disorders, adjustment disorders, somatoform disorders, eating disorders, and psychological and behavioral factors of physical illness) were collected between January 2007 and October 2009. The 20-item Toronto Alexithymia Scale (TAS-20) was administered to study alexithymia. The diagnoses were made following ICD-10 guidelines. Results: In our sample, the total prevalence of alexithymia (TAS-20 ≧61) was 21.36%. The percentage of alexithymic patients was significantly increased in the group of patients with depressive disorders (26.9%) as compared to other diagnostic groups. Using TAS-20 as a continuous measure, multiple hierarchical regression analyses revealed that higher TAS-20 total scores were significantly associated with depressive and anxiety disorders. However, after controlling for the level of depression, the association of anxiety disorders with alexithymia was no longer significant. With regard to TAS-20 subscales, ‘difficulty describing feelings’ (subscale 2) was also significantly related to depressive disorders. Conclusions: According to the results, the prevalence of alexithymia is relatively high in patients with mental disorders. The increased prevalence of highly alexithymic subjects suggests that alexithymia is associated with a higher vulnerability to mental illness. The prevalence of alexithymia was especially increased for depressive disorders. Thus, further evidence supporting the concept of ‘alexithymic depression’ was provided. From a therapeutic perspective, treatments should be developed that take the specific needs of highly alexithymic patients into account.