Two-year follow-up after a randomised controlled trial of self- and clinician-accompanied exposure for phobia/panic disorders

Validation of Smartphone Based Heart Rate Tracking for Remote Treatment of Panic Attacks

Panic attacks are an impairing mental health problem that affects 11% of adults every year [1]. Those who suffer from panic attacks often do not seek psychological treatment, citing the inability to receive care during their attacks as a contributing factor. A digital medicine solution which provides an accessible, real-time mobile health (mHealth) biofeedback intervention for panic attacks may address this problem. Critical to this approach are methods for capturing physiological arousal during an attack. Herein, we validate an algorithm for capturing physiological arousal using smartphone video of the fingertip. Results demonstrate that the algorithm is able to estimate heart rates that are highly correlated with ECG-derived values (r > 0.99), effectively reject low-quality data often captured outside of controlled laboratory environments (AUC > 0.90), and resolve the physiological arousal experienced during a panic attack. Moreover, patient reported measures indicate that this measurement modality is feasible during panic attacks, and the act of taking the measurement may stop the attack. These results point toward the need for future development and clinical evaluation of this mHealth intervention for preventing panic attacks.

Self-help with minimal therapist contact for obsessive–compulsive disorder: a review

Though there are effective psychological and drug treatments for obsessive–compulsive disorder (OCD), many patients remain inadequately treated or untreated. Making effective self-treatment guidance available may increase the number of patients being helped. In this review, database and manual literature searches were performed of case studies, open and randomised controlled trials (RCTs) of bibliotherapy, self-help groups, telecare and computer-aided self-help for OCD. We found no RCTs of bibliotherapy or self-help groups for OCD. Three open studies showed the efficacy of brief exposure and ritual prevention (ERP) instructions delivered by a live therapist by phone. A vicarious ERP computer program was effective in a small open study. Fully interactive computer-aided self-help by ERP for OCD was efficacious in two open studies and a large multicentre RCT, and in a small RCT compliance and outcome with that program was enhanced by brief scheduled support from a clinician. Although more research is needed, self-help approaches have the potential to help many more patients who would otherwise remain inadequately treated or untreated. Their dissemination could save resources used by health care providers. We propose a stepped care model for the treatment of OCD.

Manualized single-session behavior treatment with self-help manual for panic disorder with or without agoraphobia

Objective: We examined the clinical feasibility and utility of a single behavior treatment session, with 11 patients with Panic Disorder with or without Agoraphobia (PD+/-AG). Patients used an individualized, exposure based, homework manual, derived from their behavioral analysis. Treatment was implemented in an outpatient behavior treatment unit. Method: Patients presented with moderate to severe anxiety, avoidance behavior, functional impairment and depressive symptoms. Treatment was evaluated with a double-baseline case series/pre-post design with four follow-ups. Results: There was a significant and steady improvement in all self-rated outcome measures and participants were satisfied with the services provided. Nine out of 11 patients (82%) were free of PD+/-AG at 3 months and all patients at 1-year follow-up. The absence of a control group, the small sample and lack of blind assessments, limit the validity of the study. Conclusions: These case studies provide empirical evidence in support of both the feasibility and utility of a single-session behavior treatment (SSBT) plus self-help implemented in a public mental health unit. Further research with a control group is needed to assess the efficacy of the intervention in routine clinical practice.

Psychological therapies for panic disorder with or without agoraphobia in adults: a network meta-analysis

BACKGROUND

Panic disorder is characterised by the presence of recurrent unexpected panic attacks, discrete periods of fear or anxiety that have a rapid onset and include symptoms such as racing heart, chest pain, sweating and shaking. Panic disorder is common in the general population, with a lifetime prevalence of 1% to 4%. A previous Cochrane meta-analysis suggested that psychological therapy (either alone or combined with pharmacotherapy) can be chosen as a first-line treatment for panic disorder with or without agoraphobia. However, it is not yet clear whether certain psychological therapies can be considered superior to others. In order to answer this question, in this review we performed a network meta-analysis (NMA), in which we compared eight different forms of psychological therapy and three forms of a control condition.

OBJECTIVES

To assess the comparative efficacy and acceptability of different psychological therapies and different control conditions for panic disorder, with or without agoraphobia, in adults.

SEARCH METHODS

We conducted the main searches in the CCDANCTR electronic databases (studies and references registers), all years to 16 March 2015. We conducted complementary searches in PubMed and trials registries. Supplementary searches included reference lists of included studies, citation indexes, personal communication to the authors of all included studies and grey literature searches in OpenSIGLE. We applied no restrictions on date, language or publication status.

SELECTION CRITERIA

We included all relevant randomised controlled trials (RCTs) focusing on adults with a formal diagnosis of panic disorder with or without agoraphobia. We considered the following psychological therapies: psychoeducation (PE), supportive psychotherapy (SP), physiological therapies (PT), behaviour therapy (BT), cognitive therapy (CT), cognitive behaviour therapy (CBT), third-wave CBT (3W) and psychodynamic therapies (PD). We included both individual and group formats. Therapies had to be administered face-to-face. The comparator interventions considered for this review were: no treatment (NT), wait list (WL) and attention/psychological placebo (APP). For this review we considered four short-term (ST) outcomes (ST-remission, ST-response, ST-dropouts, ST-improvement on a continuous scale) and one long-term (LT) outcome (LT-remission/response).

DATA COLLECTION AND ANALYSIS

As a first step, we conducted a systematic search of all relevant papers according to the inclusion criteria. For each outcome, we then constructed a treatment network in order to clarify the extent to which each type of therapy and each comparison had been investigated in the available literature. Then, for each available comparison, we conducted a random-effects meta-analysis. Subsequently, we performed a network meta-analysis in order to synthesise the available direct evidence with indirect evidence, and to obtain an overall effect size estimate for each possible pair of therapies in the network. Finally, we calculated a probabilistic ranking of the different psychological therapies and control conditions for each outcome.

MAIN RESULTS

We identified 1432 references; after screening, we included 60 studies in the final qualitative analyses. Among these, 54 (including 3021 patients) were also included in the quantitative analyses. With respect to the analyses for the first of our primary outcomes, (short-term remission), the most studied of the included psychological therapies was CBT (32 studies), followed by BT (12 studies), PT (10 studies), CT (three studies), SP (three studies) and PD (two studies).The quality of the evidence for the entire network was found to be low for all outcomes. The quality of the evidence for CBT vs NT, CBT vs SP and CBT vs PD was low to very low, depending on the outcome. The majority of the included studies were at unclear risk of bias with regard to the randomisation process. We found almost half of the included studies to be at high risk of attrition bias and detection bias. We also found selective outcome reporting bias to be present and we strongly suspected publication bias. Finally, we found almost half of the included studies to be at high risk of researcher allegiance bias.Overall the networks appeared to be well connected, but were generally underpowered to detect any important disagreement between direct and indirect evidence. The results showed the superiority of psychological therapies over the WL condition, although this finding was amplified by evident small study effects (SSE). The NMAs for ST-remission, ST-response and ST-improvement on a continuous scale showed well-replicated evidence in favour of CBT, as well as some sparse but relevant evidence in favour of PD and SP, over other therapies. In terms of ST-dropouts, PD and 3W showed better tolerability over other psychological therapies in the short term. In the long term, CBT and PD showed the highest level of remission/response, suggesting that the effects of these two treatments may be more stable with respect to other psychological therapies. However, all the mentioned differences among active treatments must be interpreted while taking into account that in most cases the effect sizes were small and/or results were imprecise.

AUTHORS' CONCLUSIONS

There is no high-quality, unequivocal evidence to support one psychological therapy over the others for the treatment of panic disorder with or without agoraphobia in adults. However, the results show that CBT - the most extensively studied among the included psychological therapies - was often superior to other therapies, although the effect size was small and the level of precision was often insufficient or clinically irrelevant. In the only two studies available that explored PD, this treatment showed promising results, although further research is needed in order to better explore the relative efficacy of PD with respect to CBT. Furthermore, PD appeared to be the best tolerated (in terms of ST-dropouts) among psychological treatments. Unexpectedly, we found some evidence in support of the possible viability of non-specific supportive psychotherapy for the treatment of panic disorder; however, the results concerning SP should be interpreted cautiously because of the sparsity of evidence regarding this treatment and, as in the case of PD, further research is needed to explore this issue. Behaviour therapy did not appear to be a valid alternative to CBT as a first-line treatment for patients with panic disorder with or without agoraphobia.

Therapeutenbegleitete und patientengeleitete Exposition bei Panikstörung mit Agoraphobie

Zusammenfassung. Theoretischer Hintergrund: Die Exposition gilt als hoch wirksames Therapieelement in der Behandlung der Panikstörung mit Agoraphobie. Es ist jedoch weitgehend unklar, wie häufig und mit welchen Effekten verschiedene Modalitäten der Exposition (therapeutenbegleitet vs. patientengeleitet) in der Routineversorgung durchgeführt werden. Fragestellung: Es sollen Häufigkeit und Wirksamkeit der verschiedenen Durchführungsmodalitäten von Exposition in der Routinebehandlung der Panikstörung mit Agoraphobie untersucht werden. Methode: Bei N = 93 konsekutiven Patienten einer Hochschulambulanz mit der Hauptdiagnose Panikstörung mit Agoraphobie wurden Prä-Post-Veränderungen der Angstsymptomatik in Abhängigkeit von verschiedenen Expositionsmodalitäten erfasst. Die Auswirkungen von therapeutenbegleiteter und patientengeleiteter Exposition wurden getrennt für In-vivo-Exposition und interozeptive Exposition (IE) untersucht. Ergebnisse: Mit einer Kombination aus therapeutenbegleiteter und patientengeleiteter Exposition ließen sich tendenziell die besseren Therapieergebnisse erzielen, dieser Effekt ließ sich sowohl für die In-vivo-Exposition als auch für die IE nachweisen. Schlussfolgerung: Nach Möglichkeit sollten In-vivo-Exposition sowie IE sowohl therapeutenbegleitet als auch zusätzlich patientengeleitet (als selbständige Hausaufgabe) durchgeführt werden.

Current issues in the treatment of specific phobia: recommendations for innovative applications of hypnosis

Specific phobia is the most common and treatable of the anxiety disorders. Exposure-based therapies are the treatment of choice and empirically validated protocols are available that promise rapid and effective results. In many cases, however, patients are reluctant to comply with demanding schedules of exposure, increasing the risk of treatment failure. Furthermore, in clinical practice, patients often present with multiple phobias and other Axis I and Axis II disorders that can further complicate therapy. This article covers four important issues that have been addressed in the literature: (a) managing resistance to treatment, (b) reducing length of treatment, (c) clarifying the optimal application of relaxation training, and (d) applying advances in cognitive neuroscience. These issues are reviewed and recommendations proposed for ways in which to modify current treatments. Specific suggestions are provided for implementing these recommendations including examples of innovative applications of standard hypnotic techniques.

Media-delivered cognitive behavioural therapy and behavioural therapy (self-help) for anxiety disorders in adults

BACKGROUND

Anxiety disorders are the most common mental health problems. They are chronic and unremitting. Effective treatments are available, but access to services is limited. Media-delivered behavioural and cognitive behavioural interventions (self-help) aim to deliver treatment with less input from professionals compared with traditional therapies.

OBJECTIVES

To assess the effects of media-delivered behavioural and cognitive behavioural therapies for anxiety disorders in adults.

SEARCH METHODS

Published and unpublished studies were considered without restriction by language or date. The Cochrane Depression, Anxiety and Neurosis Review Group's Specialized Register (CCDANCTR) was searched all years to 1 January 2013. The CCDANCTR includes relevant randomised controlled trials from the following bibliographic databases: The Cochrane Library (all years), EMBASE (1974 to date), MEDLINE (1950 to date) and PsycINFO (1967 to date). Complementary searches were carried out on Ovid MEDLINE (1950 to 23 February 2013) and PsycINFO (1987 to February, Week 2, 2013), together with International trial registries (the trials portal of the World Health Organization (ICTRP) and ClinicalTrials.gov). Reference lists from previous meta-analyses and reports of randomised controlled trials were checked, and authors were contacted for unpublished data.

SELECTION CRITERIA

Randomised controlled trials of media-delivered behavioural or cognitive behavioural therapy in adults with anxiety disorders (other than post-traumatic stress disorder) compared with no intervention (including attention/relaxation controls) or compared with face-to-face therapy.

DATA COLLECTION AND ANALYSIS

Both review authors independently screened titles and abstracts. Study characteristics and outcomes were extracted in duplicate. Outcomes were combined using random-effects models, and tests for heterogeneity and for small study bias were conducted. We examined subgroup differences by type of disorder, type of intervention provided, type of media, and recruitment methods used.

MAIN RESULTS

One hundred and one studies with 8403 participants were included; 92 studies were included in the quantitative synthesis. These trials compared several types of media-delivered interventions (with varying levels of support) with no treatment and with face-to-face interventions. Inconsistency and risk of bias reduced our confidence in the overall results. For the primary outcome of symptoms of anxiety, moderate-quality evidence showed medium effects compared with no intervention (standardised mean difference (SMD) 0.67, 95% confidence interval (CI) 0.55 to 0.80; 72 studies, 4537 participants), and low-quality evidence of small effects favoured face-to-face therapy (SMD -0.23, 95% CI -0.36 to -0.09; 24 studies, 1360 participants). The intervention was associated with greater response than was seen with no treatment (risk ratio (RR) 2.34, 95% CI 1.81 to 3.03; 21 studies, 1547 participants) and was not significantly inferior to face-to-face therapy in these studies (RR 0.78, 95 % CI 0.56 to 1.09; 10 studies, 575 participants), but the latter comparison included versions of therapies that were not as comprehensive as those provided in routine clinical practice. Evidence suggested benefit for secondary outcome measures (depression, mental-health related disability, quality of life and dropout), but this evidence was of low to moderate quality. Evidence regarding harm was lacking.

AUTHORS' CONCLUSIONS

Self-help may be useful for people who are not able or are not willing to use other services for people with anxiety disorders; for people who can access it, face-to-face cognitive behavioural therapy is probably clinically superior. Economic analyses were beyond the scope of this review.Important heterogeneity was noted across trials. Recent interventions for specific problems that incorporate clinician support may be more effective than transdiagnostic interventions (i.e. interventions for multiple disorders) provided with no guidance, but these issues are confounded in the available trials.Although many small trials have been conducted, the generalisability of their findings is limited. Most interventions tested are not available to consumers. Self-help has been recommended as the first step in the treatment of some anxiety disorders, but the short-term and long-term effectiveness of media-delivered interventions has not been established. Large, pragmatic trials are needed to evaluate and to maximise the benefits of self-help interventions.

Effekte therapeutenbegleiteter versus patientengeleiteter Exposition bei Panikstörung mit Agoraphobie

Zusammenfassung. Theoretischer Hintergrund: Die Rolle der Therapeutenbegleitung während Expositionsübungen bei Panikstörung mit Agoraphobie (P/A) ist bislang ungeklärt. Eine kürzlich durchgeführte klinische Studie (MAC-Studie) lieferte Hinweise auf ein günstigeres Behandlungsergebnis bei Therapeutenbegleitung. Fragestellung: Wie lassen sich Effekte therapeutenbegleiteter Exposition (T+) im Vergleich zu Exposition ohne Therapeutenbegleitung (T–) erklären? Methode: Daten von 301 Patienten, die eine expositionsbasierte KVT mit bzw. ohne Therapeutenbegleitung erhalten hatten, wurden analysiert. Untersucht wurden der Einfluss der initialen Störungsschwere, des Sicherheitsverhaltens sowie differenzielle Effekte der Bedingungen auf die Angst vor der Angst. Zusätzlich wurde überprüft, inwieweit die Übungshäufigkeit in den Behandlungsbedingungen variiert und einen Mediator des Behandlungserfolgs darstellt. Ergebnisse: Störungsschwere und Sicherheitsverhalten zeigten keine differenziellen Effekte zwischen den Bedingungen; die T+ Bedingung führte jedoch zu stärkeren Reduktionen der Angst vor der Angst im Angstsensitivitätsindex. Patienten der T+ Bedingung führten häufiger selbständig Expositionsübungen durch, während Patienten in T– im Durchschnitt länger übten. Die Übungshäufigkeit stellte dabei einen Mediator des Behandlungserfolgs dar. Schlussfolgerungen: Günstigere Effekte einer therapeutenbegleiteten Exposition gehen auf stärkere Reduktionen der Angst vor der Angst sowie auf eine höhere Übungshäufigkeit im Selbstmanagement zurück.

A randomized trial of sertraline, self-administered cognitive behavior therapy, and their combination for panic disorder

BACKGROUND

Self-administered cognitive behavior therapy (SCBT) has been shown to be an effective alternative to therapist-delivered treatment for panic disorder (PD). However, it is unknown whether combining SCBT and antidepressants can improve treatment. This trial evaluated the efficacy of SCBT and sertraline, alone or in combination, in PD.

METHOD

Patients (n=251) were randomized to 12 weeks of either placebo drug, placebo drug plus SCBT, sertraline, or sertraline plus SCBT. Those who improved after 12 weeks of acute treatment received treatment for an additional 12 weeks. Outcome measures included core PD symptoms (panic attacks, anticipatory anxiety, agoraphobic avoidance), dysfunctional cognitions (fear of bodily sensations, agoraphobic cognitions), disability, and clinical global impression of severity and improvement. Efficacy data were analyzed using general and generalized linear mixed models.

RESULTS

Primary analyses of trends over time revealed that sertraline/SCBT produced a significantly greater rate of decline in fear of bodily sensations compared to sertraline, placebo/SCBT and placebo. Trends in other outcomes were not significantly different over time. Secondary analyses of mean scores at week 12 revealed that sertraline/SCBT fared better on several outcomes than placebo, with improvement being maintained at the end of continuation treatment. Outcome did not differ between placebo and either sertraline monotherapy or placebo/SCBT. Moreover, few differences emerged between the active interventions.

CONCLUSIONS

This trial suggests that sertraline combined with SCBT may be an effective treatment for PD. The study could not confirm the efficacy of sertraline monotherapy or SCBT without concomitant medication or therapist assistance in the treatment of PD.

The psychophysiology of generalized anxiety disorder: 2. Effects of applied relaxation

Muscle relaxation therapy assumes that generalized anxiety disorder (GAD) patients lack the ability to relax but can learn this in therapy. We tested this by randomizing 49 GAD patients to 12 weeks of Applied Relaxation (AR) or waiting. Before, during, and after treatment participants underwent relaxation tests. Before treatment, GAD patients were more worried than healthy controls (n=21) and had higher heart rates and lower end-tidal pCO2, but not higher muscle tension (A. Conrad, L. Isaac, & W.T. Roth, 2008). AR resulted in greater symptomatic improvement than waiting. However, 28% of the AR group dropped out of treatment and some patients relapsed at the 6-week follow-up. There was little evidence that AR participants learned to relax in therapy or that a reduction in anxiety was associated with a decrease in activation. We conclude that the clinical effects of AR in improving GAD symptoms are moderate at most and cannot be attributed to reducing muscle tension or autonomic activation.

Recent Advances in the Understanding and Treatment of Anxiety Disorders

Anxiety disorders usually are chronic or recurrent disorders characterized by stress sensitivity and a fluctuating course. Both psychopharmacologic and cognitive-behavioral treatments are well-established, evidence-based treatments for panic disorder, social anxiety disorder, generalized anxiety disorder, and obsessive-compulsive disorder. Exposure-based behavioral treatment is well established as evidence-based treatment for specific phobias. Primary care physicians can make a significant impact on patients' lives by identifying and educating about anxiety disorders, directing patients to appropriate self-help resources, choosing evidence-based drug treatment when indicated, and making referrals for specialist care.

Muscle relaxation therapy for anxiety disorders: it works but how?

Muscle relaxation therapy (MRT) has continued to play an important role in the modern treatment of anxiety disorders. Abbreviations of the original progressive MRT protocol [Jacobson, E. (1938). Progressive relaxation (2nd ed.). Chicago: University of Chicago Press] have been found to be effective in panic disorder (PD) and generalized anxiety disorder (GAD). This review describes the most common MRT techniques, summarizes recent evidence of their effectiveness in treating anxiety, and explains their rationale and physiological basis. We conclude that although GAD and PD patients may exhibit elevated muscle tension and abnormal autonomic and respiratory measures during laboratory baseline assessments, the available evidence does not allow us to conclude that physiological activation decreases over the course of MRT in GAD and PD patients, even when patients report becoming less anxious. Better-designed studies will be required to identify the mechanisms of MRT and to advance clinical practice.

A review of self-management interventions for panic disorders, phobias and obsessive-compulsive disorders

OBJECTIVE

To review current evidence for the clinical and cost-effectiveness of self-management interventions for panic disorder, phobias and obsessive-compulsive disorder (OCD).

METHOD

Papers were identified through computerized searches of databases for the years between 1995 and 2003, manual searches and personal contacts. Only randomized-controlled trials were reviewed.

RESULTS

Ten studies were identified (one OCD, five panic disorder, four phobias). Effective self-management interventions included cognitive-behavioural therapy (CBT) and exposure to the trigger stimuli for phobias and panic disorders. All involved homework. There was evidence of effectiveness in terms of improved symptoms and psychological wellbeing when compared with standard care, waiting list or relaxation. Brief interventions and computer-based interventions were effective for most participants. In terms of quality, studies were mainly based on small samples, lacked long-term follow-up, and failed to address cost-effectiveness.

CONCLUSION

Despite the limitations of reviewed studies, there appears to be sufficient evidence to warrant greater exploration of self-management in these disorders.

Three year naturalistic outcome study of panic disorder patients treated with paroxetine

BACKGROUND

This naturalistic open label follow-up study had three objectives: 1) To observe the course of illness in Panic Disorder patients receiving long-term versus intermediate-term paroxetine treatment, 2) To compare the relapse rates and side-effect profile after long-term paroxetine treatment between patients with Panic Disorder and Panic Disorder with Agoraphobia, 3) To observe paroxetine's tolerability over a 24 month period.

METHODS

143 patients with panic disorder (PD), with or without agoraphobia, successfully finished a short-term (ie 12 week) trial of paroxetine treatment. All patients then continued to receive paroxetine maintenance therapy for a total of 12 months. At the end of this period, 72 of the patients chose to discontinue paroxetine pharmacotherapy and agreed to be monitored throughout a one year discontinuation follow-up phase. The remaining 71 patients continued on paroxetine for an additional 12 months and then were monitored, as in the first group, for another year while medication-free. The primary limitation of our study is that the subgroups of patients receiving 12 versus 24 months of maintenance paroxetine therapy were selected according to individual patient preference and therefore were not assigned in a randomized manner.

RESULTS

Only 21 of 143 patients (14%) relapsed during the one year medication discontinuation follow-up phase. There were no significant differences in relapse rates between the patients who received intermediate-term (up to 12 months) paroxetine and those who chose the long-term course (24 month paroxetine treatment). 43 patients (30.1%) reported sexual dysfunction. The patients exhibited an average weight gain of 5.06 kg. All patients who eventually relapsed demonstrated significantly greater weight increase (7.3 kg) during the treatment phase.

CONCLUSIONS

The extension of paroxetine maintenance treatment from 12 to 24 months did not seem to further decrease the risk of relapse after medication discontinuation. Twenty-four month paroxetine treatment is accompanied by sexual side effects and weight gain similar to those observed in twelve month treatment.