Anterior hippocampal volume predicts affect-focused psychotherapy outcome.

BACKGROUND: The hippocampus plays an important role in psychopathology and treatment outcome. While posterior hippocampus (PH) may be crucial for the learning process that exposure-based treatments require, affect-focused treatments might preferentially engage anterior hippocampus (AH). Previous studies have distinguished the different functions of these hippocampal sub-regions in memory, learning, and emotional processes, but not in treatment outcome. Examining two independent clinical trials, we hypothesized that anterior hippocampal volume would predict outcome of affect-focused treatment outcome [Interpersonal Psychotherapy (IPT); Panic-Focused Psychodynamic Psychotherapy (PFPP)], whereas posterior hippocampal volume would predict exposure-based treatment outcome [Prolonged Exposure (PE); Cognitive Behavioral Therapy (CBT); Applied Relaxation Training (ART)]. METHODS: Thirty-five patients with posttraumatic stress disorder (PTSD) and 24 with panic disorder (PD) underwent structural magnetic resonance imaging (MRI) before randomization to affect-focused (IPT for PTSD; PFPP for PD) or exposure-based treatments (PE for PTSD; CBT or ART for PD). AH and PH volume were regressed with clinical outcome changes. RESULTS: Baseline whole hippocampal volume did not predict post-treatment clinical severity scores in any treatment. For affect-focused treatments, but not exposure-based treatments, anterior hippocampal volume predicted clinical improvement. Smaller AH correlated with greater affect-focused treatment improvement. Posterior hippocampal volume did not predict treatment outcome. CONCLUSIONS: This is the first study to explore associations between hippocampal volume sub-regions and treatment outcome in PTSD and PD. Convergent results suggest that affect-focused treatment may influence the clinical outcome through the 'limbic' AH, whereas exposure-based treatments do not. These preliminary, theory-congruent, therapeutic findings require replication in a larger clinical trial.

Twelve-Month Outcomes Following Successful Panic-Focused Psychodynamic Psychotherapy, Cognitive-Behavioral Therapy, or Applied Relaxation Training for Panic Disorder.

OBJECTIVE: Given the chronic, episodic nature of panic disorder, it is important to examine long-term outcomes of patients who respond well to various psychotherapies. METHOD: Out of 116 patients with DSM-IV panic disorder who evidenced a ≥ 40% reduction in panic and avoidance symptoms on the Panic Disorder Severity Scale (PDSS) after 12-14 weeks of panic-focused psychodynamic psychotherapy, cognitive-behavioral therapy, or applied relaxation training as part of a 2-site randomized controlled trial conducted between January 2007 and July 2012, 91 patients provided at least 1 PDSS datapoint during follow-up. Patients were assessed at each of the 12 following months using the PDSS, the Sheehan Disability Scale (SDS), and the Hamilton Depression Rating Scale (HDRS) and twice during the follow-up period with the Anxiety Disorders Interview Schedule. RESULTS: Patients with panic disorder who responded to 1 of 3 treatments maintained their gains on the PDSS, SDS, and HDRS with no differences by condition in rates of change over the follow-up period (all P values ≥ .20). Similarly, 57% of improved patients did not have a panic disorder diagnosis by the end of 1 year, regardless of the treatment received. No differences in rates of panic disorder diagnosis were found across treatment conditions at either 6 months or 12 months (all P values ≥ .78). Results should be interpreted in light of the fact that patients giving data at follow-up experienced lower symptom levels at treatment termination than those not providing data. CONCLUSIONS: Improvement in any of the 3 treatments examined in this trial was largely maintained for a year following the end of therapy. Future treatment development could focus on factors to increase the level of response in the active phase of therapy. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT00353470.

Perceived criticism predicts outcome of psychotherapy for panic disorder: Replication and extension.

OBJECTIVE: We tested the relation of perceived criticism (PC) from a parent or spouse/romantic partner to outcome of psychotherapy for panic disorder (PD). METHOD: Participants were 130 patients with PD (79% with agoraphobia) who received 24 twice-weekly sessions of panic-focused psychodynamic psychotherapy, cognitive-behavioral therapy, or applied relaxation therapy. Patients were predominantly White (75%), female (64%), and non-Hispanic (85%). At baseline, Week 5 of treatment, termination, and at 6- and 12-month follow-up, patients rated PC from the relative with whom they lived. Independent evaluators assessed the severity of PD at baseline, Weeks 1, 5, and 9 of treatment, termination, and the 2 follow-up points. Data were analyzed with piecewise (treatment phase, follow-up phase) latent growth curve modeling. RESULTS: The latent intercept for PC at baseline predicted the latent slope for panic severity in the follow-up (p = .04) but not the active treatment phase (p = .50). In contrast, the latent intercept for PD severity at baseline did not predict the latent slope on PC in either phase (ps ≥ .29). Nor did the slopes of PC and PD severity covary across treatment (p = .31) or follow-up (p = .13). Indeed, PC did not change significantly across treatment (p = .45), showing the stability of this perception regardless of significant change in severity of patients' PD (p < .001). CONCLUSIONS: Because PC predicts worse long-term treatment outcome for PD, study findings argue for interventions to address perceived criticism in treatment. (PsycINFO Database Record

Psychotherapies for Panic Disorder: A Tale of Two Sites.

OBJECTIVE: To compare cognitive-behavioral therapy (CBT), panic-focused psychodynamic psychotherapy (PFPP), and applied relaxation training (ART) for primary DSM-IV panic disorder with and without agoraphobia in a 2-site randomized controlled trial. METHOD: 201 patients were stratified for site and DSM-IV agoraphobia and depression and were randomized to CBT, PFPP, or ART (19-24 sessions) over 12 weeks in a 2:2:1 ratio at Weill Cornell Medical College (New York, New York) and University of Pennsylvania ("Penn"; Philadelphia, Pennsylvania). Any medication was held constant. RESULTS: Attrition rates were ART, 41%; CBT, 25%; and PFPP, 22%. The most symptomatic patients were more likely to drop out of ART than CBT or PFPP (P = .013). Outcome analyses revealed site-by-treatment interactions in speed of Panic Disorder Severity Scale (PDSS) change over time (P = .013). At Cornell, no differences emerged on improvement on the primary outcome, estimated speed of change over time on the PDSS; at Penn, ART (P = .025) and CBT (P = .009) showed greater improvement at treatment termination than PFPP. A site-by-treatment interaction (P = .016) for a priori-defined response (40% PDSS reduction) showed significant differences at Cornell: ART 30%, CBT 65%, PFPP 71% (P = .007), but not at Penn: ART 63%, CBT 60%, PFPP 48% (P = .37). Penn patients were more symptomatic, differed demographically from Cornell patients, had a 7.2-fold greater likelihood of taking medication, and had a 28-fold greater likelihood of taking benzodiazepines. However, these differences did not explain site-by-treatment interactions. CONCLUSIONS: All treatments substantially improved panic disorder with or without agoraphobia, but patients, particularly the most severely ill, found ART less acceptable. CBT showed the most consistent performance across sites; however, the results for PFPP showed the promise of psychodynamic psychotherapy for this disorder. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT00353470.

Are there subtypes of panic disorder? An interpersonal perspective.

OBJECTIVE: Panic disorder (PD) is associated with significant personal, social, and economic costs. However, little is known about specific interpersonal dysfunctions that characterize the PD population. The current study systematically examined these interpersonal dysfunctions. METHOD: The present analyses included 194 patients with PD out of a sample of 201 who were randomized to cognitive-behavioral therapy, panic-focused psychodynamic psychotherapy, or applied relaxation training. Interpersonal dysfunction was measured with the Inventory of Interpersonal Problems-Circumplex (Horowitz, Alden, Wiggins, & Pincus, 2000). RESULTS: Individuals with PD reported greater levels of interpersonal distress than that of a normative cohort (especially when PD was accompanied by agoraphobia), but lower than that of a cohort of patients with major depression. There was no single interpersonal profile that characterized PD patients. Symptom-based clusters (with vs. without agoraphobia) could not be discriminated on core or central interpersonal problems. Rather, as revealed by cluster analysis based on the pathoplasticity framework, there were 2 empirically derived interpersonal clusters among PD patients that were not accounted for by symptom severity and were opposite in nature: domineering-intrusive and nonassertive. The empirically derived interpersonal clusters appear to be of clinical utility in predicting alliance development throughout treatment: Although the domineering-intrusive cluster did not show any changes in the alliance throughout treatment, the nonassertive cluster showed a process of significant strengthening of the alliance. CONCLUSIONS: Empirically derived interpersonal clusters in PD provide clinically useful and nonredundant information about individuals with PD.

A Clinician's Guide to PTSD Treatments for Returning Veterans.

What options are available to mental health providers helping clients with posttraumatic stress disorder (PTSD)? In this paper we review many of the current pharmacological and psychological interventions available to help prevent and treat PTSD with an emphasis on combat-related traumas and Veteran populations. There is strong evidence supporting the use of several therapies including prolonged exposure (PE), eye movement desensitization and reprocessing (EMDR), and cognitive processing therapies (CPT), with PE possessing the most empirical evidence in favor of its efficacy. There have been relatively fewer studies of non-exposure based modalities (e.g., psychodynamic, interpersonal, and dialectical behavior therapy perspectives), but there is no evidence that these treatments are less effective. Pharmacotherapy is promising (especially paroxetine, sertraline, and venlafaxine), but more research comparing the relative merits of medication vs. psychotherapy and the efficacy of combined treatments is needed. Given the recent influx of combat-related traumas due to ongoing conflicts in Iraq and Afghanistan, there is clearly an urgent need to conduct more randomized clinical trials research and effectiveness studies in military and Department of Veterans Affairs PTSD samples. Finally, we provide references to a number of PTSD treatment manuals and propose several recommendations to help guide clinicians' treatment selections.

Do comorbid personality disorders moderate panic-focused psychotherapy? An exploratory examination of the American Psychiatric Association practice guideline.

OBJECTIVE: The American Psychiatric Association (APA) practice guideline for panic disorder recommends psychodynamic psychotherapy for panic disorder patients with comorbid personality disorders. No data underlie this recommendation. This exploratory study assessed the moderating effect of personality disorder on psychodynamic and non-psychodynamic psychotherapy outcome. METHOD: Forty-nine subjects with primary DSM-IV panic disorder were randomly assigned to 12 weeks of twice-weekly Panic-Focused Psychodynamic Psychotherapy or Applied Relaxation Training. The primary outcome measure was the Panic Disorder Severity Scale; the moderating effect of Axis II psychopathology on the Sheehan Disability Scale was also tested. The trial was conducted between February 2000 and January 2005. RESULTS: Twenty-four subjects (49%) met DSM-IV criteria for a Structured Clinical Interview for DSM-IV Axis II Disorders-diagnosed personality disorder, of whom 19 (79%) had a cluster C diagnosis. Presence of a cluster C diagnosis moderated treatment outcome. Such subjects experienced greater improvements in Panic-Focused Psychodynamic Psychotherapy than subjects without cluster C comorbidity. CONCLUSIONS: Despite its small sample size, this exploratory analysis provides initial preliminary evidence corroborating the APA practice guideline recommendation. Future panic disorder clinical trials should explore Axis II moderator effects. CLINICAL TRIALS REGISTRATION: ClinicalTrials.gov identifier NCT00128388.

Six-month treatment outcomes of cocaine-dependent patients with and without PTSD in a multisite national trial.

OBJECTIVE: This study examined 6-month treatment outcomes among 428 cocaine-dependent outpatients with (n = 34) and without (n = 394) posttraumatic stress disorder (PTSD) in a randomized controlled multisite clinical trial of manual-based psychotherapies for substance use disorder (SUD). METHOD: Assessments were completed at baseline and monthly during the 6-month treatment. With longitudinal mixed-effects models, we compared outcomes between SUD-PTSD and SUD-only patients and also examined rates of within-group change. RESULTS: Results indicated a highly consistent pattern: the SUD-PTSD patients were more impaired to begin with and remained so across time compared with SUD-only patients (with the exception of substance use and addiction-related legal and employment problems, which did not differ between groups). Also, the SUD-PTSD patients improved less than SUD-only patients in alcohol use and the majority of addiction-related psychosocial problems. However, the two groups did not differ significantly in improvement over time on drug use or global psychological severity. CONCLUSIONS: The greater impairment and relative lack of improvement of SUD-PTSD patients, compared with those with SUD-only, suggest a need for dual-diagnosis treatments that more directly target their areas of difficulty.