Advances in cognitive-behavioural therapy for unipolar depression

Predictors of depression relapse and recurrence after cognitive behavioural therapy: a systematic review and meta-analysis

BACKGROUND

Cognitive behavioural therapy (CBT) is an effective psychological treatment for major depressive disorder, although some patients experience a return of symptoms after finishing therapy. The ability to predict which individuals are more vulnerable to deterioration would allow for targeted interventions to prevent short-term relapse and longer-term recurrence.

AIM

This systematic review and meta-analysis aimed to identify factors associated with an increased risk of relapse and/or recurrence (RR) after CBT for depression.

METHOD

We reviewed 13 relevant papers, of which a small set of unique samples were eligible for meta-analysis (k = 5, N = 369). Twenty-six predictor variables were identified and grouped into seven categories: residual depressive symptoms; prior episodes of depression; cognitive reactivity; stressful life events; personality factors; clinical and diagnostic factors; demographics.

RESULTS

Meta-analyses indicated that residual depressive symptoms (r = 0.34 [0.10, 0.54], p = .01) and prior episodes (r = 0.19 [0.07, 0.30], p = .002) were statistically significant predictors of RR, but cognitive reactivity was not (r = 0.18 [-0.02, 0.36], p = .08). Other variables lacked replicated findings. On average, 33.4% of patients experienced RR after CBT.

CONCLUSIONS

Patients with the above risk factors could be offered evidence-based continuation-phase interventions to enhance the longer-term effectiveness of CBT.

A lifetime approach to major depressive disorder: The contributions of psychological interventions in preventing relapse and recurrence

Major depressive disorder (MDD) is highly disabling and typically runs a recurrent course. Knowledge about prevention of relapse and recurrence is crucial to the long-term welfare of people who suffer from this disorder. This article provides an overview of the current evidence for the prevention of relapse and recurrence using psychological interventions. We first describe a conceptual framework to preventive interventions based on: acute treatment; continuation treatment, or; prevention strategies for patients in remission. In brief, cognitive-behavioral interventions, delivered during the acute phase, appear to have an enduring effect that protects patients against relapse and perhaps others from recurrence following treatment termination. Similarly, continuation treatment with either cognitive therapy or perhaps interpersonal psychotherapy appears to reduce risk for relapse and maintenance treatment appears to reduce risk for recurrence. Preventive relapse strategies like preventive cognitive therapy or mindfulness based cognitive therapy (MBCT) applied to patients in remission protects against subsequent relapse and perhaps recurrence. There is some preliminary evidence of specific mediation via changing the content or the process of cognition. Continuation CT and preventive interventions started after remission (CBT, MBCT) seem to have the largest differential effects for individuals that need them the most. Those who have the greatest risk for relapse and recurrence including patients with unstable remission, more previous episodes, potentially childhood trauma, early age of onset. These prescriptive indications, if confirmed in future research, may point the way to personalizing prevention strategies. Doing so, may maximize the efficiency with which they are applied and have the potential to target the mechanisms that appear to underlie these effects. This may help make this prevention strategies more efficacious.

The clinical effectiveness of stepped care systems for depression in working age adults: a systematic review

BACKGROUND

Stepped care service delivery models involve treatments that become increasingly intense through successive steps, with patients re-assigned via pre-defined decision criteria. This article reviews the clinical effectiveness of stepped care systems for depression in working age adults.

METHODS

Systematic literature review of quantitative clinical outcome evidence comprising 14 controlled and uncontrolled studies meeting specified criteria. Principal outcomes were (a) recovery rates, defined as patients no longer meeting clinical cut-off criteria for the specific outcome measure and (b) treatment response rates, defined as a 50% decrease in outcome measure score.

RESULTS

Stepped care systems had recovery rates ranging predominantly between 40% and 60% and response rates approximating 60%. Studies comparing stepped care with usual/enhanced usual care tended to find significant differences favouring stepped care. The median recovery odds ratio was 1.31 (interquartile intervals of 1.05 and 1.66; k=7 studies). The median comparative Cohen's d effect size estimate was 0.41 (interquartile intervals 0.25 and 0.45; k=5 studies).

LIMITATIONS

The inclusion of uncontrolled studies could be seen as reducing the overall quality of evidence and a meta-analysis was not included due to limitations with the available data.

CONCLUSIONS

Evidence suggested that stepped care interventions for depression are at least as effective as usual care. However, the clinical and organisational superiority of stepped care is yet to be scientifically verified. Differential benefits of stepped care may ultimately depend on service quality. Further research investigating and comparing the specific components and configurations of stepped care interventions are indicated.

Psychological interventions for patients with rheumatic diseases and anxiety or depression

The prevalence of clinical anxiety and clinical depression in rheumatic diseases is about twice the prevalence seen in the general population. At a milder level, the occurrence of psychological distress that does not fulfil diagnostic criteria of anxiety and depression is even higher. Evidence indicates that this high prevalence is multifactorial. Correlational studies suggest that possible factors for anxiety and depression include the suffering accompanying somatic symptoms, functional limitations, pro-inflammatory cytokines, helplessness due to the uncontrollable, unpredictable and progressive nature of the disease, and other factors associated with having a chronic disease. This article reviews the prevalence and diagnosis of anxiety and depression in rheumatic diseases and it examines the contents and the impact of psychological interventions to address these difficulties for patients.

How Disorder-Specific are Depressive Attributions? A Comparison of Individuals with Depression, Post-Traumatic Stress Disorder and Healthy Controls

Depressed individuals tend to assign internal, stable, and global causes to negative events. The present study investigated the specificity of this effect to depression and compared depressive attributional styles of individuals with major depression (MD), post-traumatic stress disorder (PTSD), and healthy controls. We indexed attributional style using the depressive attributions questionnaire in 164 participants. Additionally, we assessed appraisals characteristic of PTSD using the post-traumatic cognitions inventory (PTCI), depressive rumination, trauma history, and depression and PTSD symptom severity. Individuals with MD endorsed a depressive attributional style to a greater extent than both individuals with PTSD, who were not depressed, and healthy controls. Depressive attributional style was associated with the severity of depressive and PTSD symptoms, number and distress of traumatic experiences, frequency of rumination, and post-traumatic cognitions. Depressive attributions and PTCI appraisals independently predicted MD and PTSD symptom severity. They may thus be useful in predicting MD and PTSD, and should be targeted in psychological treatments of these conditions.

Screening for psychiatric problems in the orofacial trauma setting

After facial trauma, a subset of patients develops mental health problems, particularly posttraumatic stress disorder (PTSD) and major depression. Early identification of patients who may be at risk for these disorders can facilitate referral for further psychiatric evaluation and possible treatment. Brief, easy-to-use screening tools are available to assist in the process of recognizing these individuals. This article provides a review of some of the most commonly used short screeners for PTSD and major depression. Incorporating information gleaned from these self-administered screeners into the routine evaluation of patients with facial trauma will help to address the mental health needs that are associated with orofacial injury.

Predictors of pain intensity and disability after minor hand surgery

PURPOSE

To test the null hypothesis that there is no relationship between coping mechanisms and depression measured before surgery, and pain intensity and disability after surgery, as assessed at the time of suture removal.

METHODS

A total of 120 patients (39 electing surgery for carpal tunnel syndrome, 65 for trigger finger, and 16 for a benign tumor) completed questionnaires measuring depression, pain self-efficacy (confidence that one can perform various activities despite pain), pain anxiety (fear and anxiety in response to pain sensations), and pain catastrophizing (maladaptive cognitive activities such as pain-related rumination, magnification, and helplessness) before surgery. Before the surgery and at the time of suture removal (10 to 14 days after surgery) participants completed the Disabilities of the Arm, Shoulder, and Hand questionnaire (DASH) and a numerical pain intensity rating scale.

RESULTS

At the time of suture removal, there was a significant correlation between pain intensity and depression (r = 0.45, p<.001), pain catastrophizing (r = 0.41, p<.001), pain anxiety (r = 0.32, p<.01), and self-efficacy (r = -0.29, p<.01). Disability correlated with self-efficacy (r = -0.34; p<.001) and depression (r = 0.49; p<.001), but not with pain anxiety and catastrophizing (p>.05). In multivariate analyses, depression was the sole predictor of both disability and pain intensity and accounted for 26% of the variance in DASH scores and 25% of the variance in pain intensity, after removing the influence of preoperative DASH and diagnosis, which accounted for 14% variance.

CONCLUSIONS

Psychosocial factors, especially depression, explain a notable proportion of the variation in pain intensity and disability after minor hand surgery.

TYPE OF STUDY/LEVEL OF EVIDENCE

Prognostic I.

Current Status and Future Prospects of Clinical Psychology: Toward a Scientifically Principled Approach to Mental and Behavioral Health Care

The escalating costs of health care and other recent trends have made health care decisions of great societal import, with decision-making responsibility often being transferred from practitioners to health economists, health plans, and insurers. Health care decision making increasingly is guided by evidence that a treatment is efficacious, effective-disseminable, cost-effective, and scientifically plausible. Under these conditions of heightened cost concerns and institutional-economic decision making, psychologists are losing the opportunity to play a leadership role in mental and behavioral health care: Other types of practitioners are providing an increasing proportion of delivered treatment, and the use of psychiatric medication has increased dramatically relative to the provision of psychological interventions. Research has shown that numerous psychological interventions are efficacious, effective, and cost-effective. However, these interventions are used infrequently with patients who would benefit from them, in part because clinical psychologists have not made a convincing case for the use of these interventions (e.g., by supplying the data that decision makers need to support implementation of such interventions) and because clinical psychologists do not themselves use these interventions even when given the opportunity to do so. Clinical psychologists' failure to achieve a more significant impact on clinical and public health may be traced to their deep ambivalence about the role of science and their lack of adequate science training, which leads them to value personal clinical experience over research evidence, use assessment practices that have dubious psychometric support, and not use the interventions for which there is the strongest evidence of efficacy. Clinical psychology resembles medicine at a point in its history when practitioners were operating in a largely prescientific manner. Prior to the scientific reform of medicine in the early 1900s, physicians typically shared the attitudes of many of today's clinical psychologists, such as valuing personal experience over scientific research. Medicine was reformed, in large part, by a principled effort by the American Medical Association to increase the science base of medical school education. Substantial evidence shows that many clinical psychology doctoral training programs, especially PsyD and for-profit programs, do not uphold high standards for graduate admission, have high student-faculty ratios, deemphasize science in their training, and produce students who fail to apply or generate scientific knowledge. A promising strategy for improving the quality and clinical and public health impact of clinical psychology is through a new accreditation system that demands high-quality science training as a central feature of doctoral training in clinical psychology. Just as strengthening training standards in medicine markedly enhanced the quality of health care, improved training standards in clinical psychology will enhance health and mental health care. Such a system will (a) allow the public and employers to identify scientifically trained psychologists; (b) stigmatize ascientific training programs and practitioners; (c) produce aspirational effects, thereby enhancing training quality generally; and (d) help accredited programs improve their training in the application and generation of science. These effects should enhance the generation, application, and dissemination of experimentally supported interventions, thereby improving clinical and public health. Experimentally based treatments not only are highly effective but also are cost-effective relative to other interventions; therefore, they could help control spiraling health care costs. The new Psychological Clinical Science Accreditation System (PCSAS) is intended to accredit clinical psychology training programs that offer high-quality science-centered education and training, producing graduates who are successful in generating and applying scientific knowledge. Psychologists, universities, and other stakeholders should vigorously support this new accreditation system as the surest route to a scientifically principled clinical psychology that can powerfully benefit clinical and public health.

Olfaction: a potential cognitive marker of psychiatric disorders

Cognitive deficits are well documented in psychiatric disorders, particularly in schizophrenia and depression. Cognitive activity roots in perceptions. However, research on sensorial alterations in psychiatric conditions has mainly focused on visual or auditory processes and less on olfaction. Here, we examine data on olfactory deficits in psychiatric patients using a systematic review of recent publications. Schizophrenic patients are mainly characterized by no reliable change in odour sensitivity and by a deficit in odour identification, recognition and discrimination. Depressed patients principally exhibit a deficit in the hedonic aspects of this perception, even if, in some case, alterations in sensitivity or identification are also found. Changes in odour perception are also found in dementia and in some neurodegenerative disease, but in this case alterations concern all aspects of the sensorial experience (detection threshold, identification and recognition). Taken together, these data indicate that olfactory abnormalities might be a marker of psychiatric conditions, with a specific pattern for each disease.