Isaac Marks

Obsessive-Compulsive Symptom Dimensions as Predictors of Compliance with and Response to Behaviour Therapy: Results from a Controlled Trial

Background: Recent factor-analytic studies in obsessive-compulsive disorder (OCD) identified consistent symptom dimensions. Support for the validity of these dimensions comes from studies of psychiatric comorbidity, functional brain imaging, genetic transmission, and treatment response to medications. This study examined whether previously identified OCD symptom dimensions are associated with treatment compliance and response to behaviour therapy (BT) for OCD. Methods: One hundred and fifty-three OCD outpatients who participated in a multi-centre randomised controlled trial of computer- versus clinician-guided BT for OCD were included in the study. Logistic and multiple regression models tested for significant predictors of compliance with and response to BT and relaxation. Results: The patients studied were phenomenologically comparable (including the presence of ‘pure’ obsessions and mental rituals) to those in previous serotonin reuptake inhibitor (SRI) trials and those in clinical epidemiology studies. High scorers on the ‘hoarding’ dimension were more likely to drop out prematurely from the study and tended to improve less. For those completing treatment, the strongest predictor of outcome was pre-treatment severity. Initial depression scores were unrelated to outcome. After controlling for symptom severity, higher scores on the ‘sexual/religious obsessions’ factor predicted poorer outcome with BT, especially when computer-guided. Conclusions: BT is especially indicated for OCD patients with aggressive/checking, contamination/cleaning and symmetry/ordering symptoms. Previous accounts of unsuccessful BT in patients with hoarding symptoms may be due in part to their propensity to drop out earlier from treatment. Patients with sexual/religious obsessions, but not those with mental rituals, might respond less well to traditional BT techniques. Existing treatments need to be refined and/or new treatments developed to improve these patients’ adherence and response to treatment.

Predictors of improvement in obsessive-compulsive disorder☆

Abstract Forty-nine obsessive-compulsive ritualizers had clomipramine and live exposure therapy in a randomized controlled design. 29 pretreatment demographic, clinical, and psychophysiologic variables were examined as predictors of outcome using multiple regression analysis. Severity of rituals, social disability, male sex, checking rituals, bizarre and fixed obsessions, and severe and uncontrollable obsessions predicted poorer outcome. Patients who had been initially more severely ill habituated less to ritual-evoking stimuli in the laboratory and showed less improvement at all assessment points. Plasma desmethylclomipramine predicted improvement only during the active phase of treatment.

Post‐traumatic stress disorder: Evaluation of a behavioral treatment program

The relative values of imaginal and real-life exposure exercises were tested in this study by randomizing 14 patients who met DSM-III-R criteria for PTSD at least 6 months after the initiating trauma to one of two groups. Group 1 (n=7) had four, weekly, hour-long sessions of imaginal exposure followed by four, weekly, hour-long sessions of live exposure. Group 2 (n=7) had the reverse order of four live exposure sessions followed by four imaginal exposure sessions. Both groups improved significantly on both PTSD-specific measures and measures of general health post-treatment, and significantly further on 7 out of 12 measures at follow up 12 months post-treatment. Clinical improvement was in the order of 65–80% reduction in target symptoms. On one measure only (problem 2 — phobic avoidance), live exposure yielded more improvement than imaginal exposure whether given first or second. The importance of both live and imaginal exposure to all relevant cues, behavioral and cognitive, is discussed, together with the value of self-exposure homework for patients with PTSD.

The effects of exposure to drug-related cues in detoxified opiate addicts: A theoretical review and some new data

Larticle propose une revue theorique des etudes menees a propos des effets dune therapie cvomportementale concernant les cas ou lanxiete est un element important dans les problemes lies a la drogue et chez les opiomanes desintoxiques

Behaviour Therapy for Obsessive—Compulsive Disorder: A Decade of Progress

Objective: To review the last decade of behaviour therapy research in obsessive–compulsive disorder (OCD). Method: The most salient research was analyzed. Results: Many studies confirmed that exposure and ritual prevention (ERP) effectively reduced compulsive rituals and obsessive thoughts in most patients in all age groups, although a minority of the patients did not complete treatment. Gains persisted to follow-up 2 to 6 years later in several countries. Improvement after ERP generalized to obsessive–compulsive beliefs, mood, work, and social adjustment, and was accompanied by reduction in cerebral blood flow in the right caudate nucleus. Teaching patients how to prevent relapse seems to reduce the risk of recurrence. ERP yields slightly more improvement than does appropriate antidepressant medication and is followed by far less relapse after treatment has stopped, so ERP may be more cost-effective in the long term. Antidepressant medication is a useful adjunct to ERP when OCD is accompanied by comorbid depression. The therapist now tends to teach patients how to carry out self-exposure and self-imposed ritual prevention, rather than to impose ERP on them. Self-help manuals help patients to do this, and computer aids to allow patients to learn how to do ERP at home have been valuable in pilot studies. Cognitive therapy without ERP was as useful as ERP. Conclusion: ERP is of lasting value for OCD. Long-term cost-effectiveness comparisons are needed of self-administered ERP versus cognitive therapy and versus medication. Studies are also needed of brief psychological treatment for depression comorbid with OCD.

What predicts improvement and compliance during the behavioral treatment of obsessive compulsive disorder

The aim of the study was to identify factors associated with treatment compliance and clinical improvement when obsessive compulsive disorder is treated with graded exposure and response prevention. The sample consisted of all patients with a diagnosis of obsessive compulsive disorder admitted over a 3-year period to a unit specialising in behavioral treatment. All subjects were diagnosed using reliable diagnostic criteria and all were followed-up for 12 months. A range of social and clinical variables was examined using stepwise regression analysis. Treatment compliance was associated with being employed during treatment and living with ones family. Clinical improvement was associated with never having been treated previously, being employed during treatment, having a fear of contamination, having overt ritualistic behaviour, the absence of depression and living with ones family.

Can Opiate Addicts Tell Us About Their Relapse Risk?: Subjective Predictors Of Clinical Prognosis

Given the high relapse rate of opiate addicts following detoxification, it is pertinent to identify whether any subjective variables mediate outcome, since these may then be targets of treatment. The present study assessed personality, cue-elicited craving, outcome expectancies for drug use, and self-efficacy for resisting drug use, in 43 opiate addicts receiving inpatient detoxification in either a specialist drug-dependence unit or a behavioral/general psychiatric ward, within the context of a randomised, controlled-treatment trial. Subjects were followed-up at between 1 and 3 months and again at 6 months after discharge. Frequency of drug use was not predicted by any of the subjective variables at the first follow-up; but at 6 months, subjects with lower self-efficacy and higher positive outcome expectancies were found to be using less often. Latency to first lapse was greater in subjects with higher anxiety and neuroticism scores. Precipitants to the first lapse were identified, but none of the predicted relationships between subjective variables and circumstances of lapse emerged. It is suggested that greater awareness of personal vulnerability may promote effective coping strategies.

Pre-treatment predictors of treatment outcome in panic disorder and agoraphobia treated with alprazolam and exposure

Pre-treatment predictors of treatment outcome were examined in a group of 144 patients with panic disorder and agoraphobia randomly allocated to alprazolam+exposure (AE), placebo+exposure (PE), alprazolam+relaxation (AR), and placebo+relaxation (PR). First-time psychotropic medication use, severity of agoraphobic disability, and longer duration of illness predicted less global improvement at post-treatment. Pre-treatment severity of agoraphobia predicted less improvement both in the short- and the long-term. Predictors of poorer outcome at 6-month follow-up were older age, past history of depression, severity of phobia targets, and longer duration of illness. Sex, source of referral, pre-treatment depression-anxiety-panic, and expectancy from treatment did not relate to outcome.

Computer aids to mental health care.

Computer systems are being used increasingly to aid the assessment and self-treatment of mental health problems in adults. Systems vary hugely in the extent to which they meet all patients assessment and therapy needs and save clinicians time. Hardly any single system 1) performs every task required from initial screening to the end of follow-up, 2) works 100% independently of contact with a clinician or technician, and 3) is widely available and supported. Most systems use desk- or laptop computers. Some now use palmtop (hand-held) computers. A few employ computerized phone interviews (interactive voice response), usually from home. Virtual reality as a tool is embryonic. Computer aids save time in screening and outcome-tracking in a wide variety of problems. Computer aids to treatment have had promising outcomes in phobic, anxiety, panic, and obsessive-compulsive disorders, nonsuicidal depression, obesity, and smoking cessation. Some systems are installed in a few places as part of everyday clinical care. A growing number should soon be robust enough to ease the lives of many patients, practitioners, and researchers if use of the systems is carefully integrated into normal clinical practice.

Social support moderates outcome in a randomized controlled trial of exposure therapy and (or) cognitive restructuring for chronic posttraumatic stress disorder.

Objective: To understand what predicts good outcome in psychiatric treatments, thus creating a pathway to improving efficacy. Method: Our study investigated relations between predictor variables and outcome (on the Clinician Administered Posttraumatic Stress Disorder [PTSD] Scale [CAPS]) at posttreatment for 77 treatment completers in a randomized controlled trial of exposure therapy and (or) cognitive restructuring, compared with relaxation, for chronic PTSD in adults. Results: More social support on the Significant Others Scale significantly predicted better outcome on the CAPS, even after controlling for the effects of treatment group and of pretreatment severity. Importantly, social support was only a significant predictor of outcome for participants receiving cognitive restructuring and (or) exposure therapy and not for participants in the relaxation condition. Conclusions: Better social support is associated with significantly greater gain following cognitive restructuring and (or) exposure therapy for PTSD. Future interventions should consider augmenting social support as an adjunct to treatment.