H.A. de Haan

Gamma-hydroxybutyrate detoxification by titration and tapering

Objective: To determine the effectiveness and safety of a new detoxification procedure in γ-hydroxybutyrate (GHB)-dependent patients. GHB is an endogenous inhibitory neurotransmitter and anesthetic agent that is being abused as a club drug. In many GHB-dependent patients a severe withdrawal syndrome develops that does not respond to treatment with high dosages of benzodiazepines and often requires an admission to an intensive care unit. Methods: Based on the knowledge of detoxification procedures in opioid and benzodiazepine dependence, we developed a titration and tapering procedure. A consecutive series of 23 GHB-dependent inpatients were transferred from illegal GHB (mostly self-produced) in various concentrations to pharmaceutical GHB. They were given initial doses that resulted in a balance between sedation and withdrawal symptoms. After this titration period, patients were placed on a 1-week taper. Results: We have found that after titration the patients experienced a low level of withdrawal symptoms. During tapering these symptoms decreased significantly and no patient developed a delirium or a psychosis. None of the patients had to be transferred to a medium or intensive care unit. Conclusions: This detoxification procedure proved to be safe and convenient in patients with moderate to severe GHB dependence.

Evaluation of an e-therapy program for problem drinkers: a pilot study.

An e-therapy program with therapist involvement for problem drinkers was evaluated in a population of 527 Dutch-speaking patients. In a pre–post design weekly alcohol consumption, alcohol-consumption-related health problems, and motivation were assessed. Although the dropout rate was high, patients showed a significant decrease of alcohol consumption and alcohol-consumption-related health complaints. Patients’ satisfaction with the e-therapy program was high. The e-therapy program proved to be feasible and attracted patients who were otherwise unlikely to seek help. A randomized controlled trial has to provide more information about reasons for dropout, effectiveness, and the population that benefits most from the e-therapy program. The studys limitations are noted.

Web-based treatment program using intensive therapeutic contact for patients with eating disorders: before-after study.

Background Although eating disorders are common in the Netherlands, only a few patients are treated by mental health care professionals. To reach and treat more patients with eating disorders, Tactus Addiction Treatment developed a web-based treatment program with asynchronous and intensive personalized communication between the patient and the therapist. Objective This pilot study evaluated the web-based treatment program using intensive therapeutic contact in a population of 165 patients with an eating disorder. Methods In a pre-post design with 6-week and 6-month follow-ups, eating disorder psychopathology, body dissatisfaction, Body Mass Index, physical and mental health, and quality of life were measured. The participant’s satisfaction with the web-based treatment program was also studied. Attrition data were collected, and participants were classified as noncompleters if they did not complete all 10 assignments of the web-based treatment program. Differences in baseline characteristics between completers and noncompleters were studied, as well as reasons for noncompletion. Furthermore, differences in treatment effectiveness, treatment adherence, and baseline characteristics between participants of the three major eating disorder diagnostic groups EDNOS (n=115), BN purging (n=24), and BN nonpurging (n=24) were measured. Results Of the 165 participants who started the web-based treatment program, 89 participants (54%) completed all of the program assignments (completers) and 76 participants (46%) ended the program prematurely (noncompleters). Severe body dissatisfaction and physical and mental health problems seemed to have a negative impact on the completion of the web-based treatment program. Among the participants who completed the treatment program, significant improvements were found in eating disorder psychopathology (F=54.6, df = 68, P<.001, d=1.14). Body dissatisfaction, quality of life, and physical and mental health also significantly improved, and almost all of these positive effects were sustained up to 6 months after the participants had completed the web-based treatment program. Body Mass Index improved only within the group of participants suffering from obesity. The improvement in eating disorder psychopathology occurred in all three eating disorder diagnostic groups, and the percentage of completers did not differ significantly between these groups. Participants’ satisfaction with the treatment program, as well as with their therapist, was high, and participants indicated that they would recommend the program to other patients with eating disorders. Conclusions The results of this study suggest that the web-based treatment program has the potential to improve eating disorder psychopathology in patients with different types of eating disorders.

Characteristics of Problem Drinkers in E-therapy versus Face-to-Face Treatment

Background: The availability of online treatment programs offers the potential to reach more problem drinkers. This study compared the client populations of an e-therapy program (asynchronous client–therapist communication via the Internet) and a face-to-face treatment program. Objective: To determine whether e-therapy and face-to-face groups differed from each other and changed over time. Methods: We compared the baseline characteristics of four naturalistic groups (N = 4593): two e-therapy groups (2005–2006 and 2008–2009) and two consecutive series of ambulant face-to-face clients admitted for treatment as usual. The characteristics we were interested in were gender, age, education level, working situation, and earlier treatment for drinking problems. Results: The results showed that the baseline characteristics of e-therapy and face-to-face clients differed by gender, education level, work situation, prior alcohol treatment, and age. We also found that both e-therapy groups differed over time by gender, work situation, and prior alcohol treatment. Conclusions: The e-therapy program successfully attracted clients who were different from those who were represented in regular face-to-face alcohol treatment services. This indicates that e-therapy decreases the barriers to treatment facilities and enhances the accessibility. However, the e-therapy population changed over time. Although the e-therapy program still reached an important new group of clients in 2008–2009, this group showed more overlap with the traditional face-to-face group of clients probably as a result of improved acceptance of e-therapy in the general population. Scientific Significance: Although e-therapy seems to be better accepted in the general population, anonymous treatment seems necessary to reach a broader range of problem drinkers.

Screening For Personality Disorders in Outpatient Substance Use Disorder Patients

The current study evaluates the psychometric properties of both the Standardized Assessment of Personality – Abbreviated Scale (SAPAS) and the Structured Interview for DSM-IV Personality Disorders (SIDP-IV) screener. One hundred two participants were interviewed with the SIDP-IV and the SAPAS. The SIDP-IV was used as the standard to identify PD; the SAPAS and the SIDP-IV screener were compared to the SIDP-IV in terms of sensitivity, specificity, positive and negative predictive power, and overall efficiency. ROC analyses were used to identify ideal cut-off scores. The data showed that both the SAPAS and the SIDP-IV screener had moderate sensitivity and specificity. For the SAPAS, the best cut-off score was 4, yielding a sensitivity of 0.70 and a specificity of 0.63. After modifying the scoring procedures for the SIDP-IV screener, we found a sensitivity of 0.70 and a specificity of 0.75. The results show that the psychometric properties of the SAPAS in a population of treatment-seeking SUD patients are relatively poor compared to previous studies in psychiatric populations. Also, the SAPAS cannot be used to screen for cluster B personality disorders. The SIDP-IV screener shows better results regarding this purpose. Due to the low prevalence of PD in the current study the results should be interpreted with caution.

A 9-month follow-up of a 3-month web-based alcohol treatment program using intensive asynchronous therapeutic support.

Abstract Background: Web-based alcohol interventions have demonstrated efficacy in randomized controlled trials. However, most studies have involved self-help interventions without therapeutic support. Objectives: To examine the results of a 3-month web-based alcohol treatment program using intensive, asynchronous (non-simultaneous) therapeutic support (www.alcoholdebaas.nl) at 9-month follow-up assessment. Methods: This study reports the follow-up results of 144 problem drinking participants who received a web-based alcohol treatment program. We investigated whether the intervention effects at treatment completion (3 months) continued to exist at 6 and 9 months of follow-up. The primary outcome measure was weekly alcohol consumption. Repeated measures analysis with a mixed model approach was used to address loss to follow-up. Results: Weekly alcohol consumption significantly improved between baseline and 9 months (F(1,74) = 85.6, p < 0.001). Post-hoc tests revealed that the reduction occurred during the first 3 months (from 39.9–11.4 standard units a week). Although alcohol consumption had risen to 19.5 units per week at 9 months, it still decreased by more than 20 units compared to baseline drinking. Significant improvements with medium to large effect sizes were found on the secondary outcomes (depression, general health, and quality of life) at 9 months. Conclusion: The web-based alcohol treatment with intensive asynchronous therapeutic support has been shown to be effective in reducing alcohol consumption and improving health status at post treatment assessments. The present study showed that most of these improvements were sustained after 9 months. Despite the lack of a control group and the high dropout rate, our findings suggest that web-based treatment can achieve relevant health gains in the long term.