Improvement In Obsessive-compulsive Disorder Symptoms Research Articles

Effectiveness of a tertiary specialist obsessive–compulsive disorder (OCD) service in improving clinical outcomes for patients with treatment-resistant/complex OCD

Abstract Introduction: Obsessive-compulsive disorder (OCD) is a chronic condition that can result in significant distress and impaired quality of life (QoL). This retrospective cohort study investigates the effectiveness of individually tailored pharmacotherapy, exposure and response prevention (ERP), and socioeconomic and family interventions on clinical outcomes at a specialist clinic focused on treatment-resistant/complex OCD. Methods: Patients with treatment-resistant/complex OCD treated at the Institute of Mental Health OCD clinic, Singapore, between January 2015 and March 2019 were invited. The interventions included pharmacotherapy and 12–60 intensive cognitive behavioural therapy/ERP sessions. Interventions also targeted socio-occupational dysfunction and family accommodation. Y-BOCS and Q-LES-Q-SF scales were administered pre- and post-treatment. Linear regression and one-way analysis of variance were used for data analysis. Results: Overall, there was a significant reduction in Y-BOCS score of 9.2 (P = 0.000) and an improvement in Q-LES-Q-SF score of 11.6 (P = 0.000). Of 70 participants, 35 (50%), 12 (17%), and 23 (33%) achieved full, partial, and no treatment response, respectively. Improvement in OCD symptoms was associated with lower baseline Y-BOCS scores and being married. Improvement in QoL was associated with higher baseline Q-LES-Q-SF scores. Conclusion: Interventions at the clinic improved OCD symptoms and QoL in patients with treatment-resistant/complex OCD, likely due to the simultaneous socio-occupational support services available.

Exploring the Peaks and Potholes: Understanding positive and negative effects of concentrated exposure treatment for obsessive-compulsive disorder

The Bergen 4-Day Treatment offers brief concentrated exposure with response prevention (cERP) for obsessive-compulsive disorder (OCD). To date, this intervention has primarily been studied in Norway, and no study has been done on its side effects. We tested the safety, feasibility, and effectiveness of cERP in Germany and compared cERP to a historical inpatient control group.Thirty-three patients with OCD were treated with cERP. We assessed severity of OCD (primary outcome: Y-BOCS), depression, global functioning, self-esteem, self-efficacy, experiential avoidance, and quality of life at baseline (t0), two weeks after t0 (t1), and three months after t1 (t2). Side effects were assessed at t1 and t2. The changes in OCD were compared to a matched historical inpatient control group (n = 33) treated at the same site.The cERP group improved over time, with a large effect size in OCD symptoms and other outcome measures. Improvement of OCD symptoms over treatment was superior in the cERP group compared to the historical control group, with a medium effect size for OCD symptoms. 53–56% of the participants reported at least one side effect (e.g., exhaustion). cERP is safe and effective in the treatment of OCD and can be successfully implemented in Germany.

Patient adherence as a predictor of acute and long-term outcomes in concentrated exposure treatment for difficult-to-treat obsessive-compulsive disorder

BackgroundExposure and response prevention (ERP) is considered the first-line psychotherapy for obsessive-compulsive disorder (OCD). Substantial research supports the effectiveness of ERP, yet a notable portion of patients do not fully respond while others experience relapse. Understanding poor outcomes such as these necessitates further research. This study investigated the role of patient adherence to ERP tasks in concentrated exposure treatment (cET) in a sample who had previously not responded to treatment or relapsed.MethodThe present study included 163 adults with difficult-to-treat OCD. All patients received cET delivered during four consecutive days. Patients’ treatment adherence was assessed using the Patient EX/RP Adherence Scale (PEAS-P) after the second and third day of treatment. OCD severity was evaluated at post-treatment, 3-month follow-up, and 1-year follow-up by independent evaluators.ResultsPEAS-P scores during concentrated treatment were associated with OCD-severity at post-treatment, 3-month follow-up, and 1-year follow-up. Moreover, PEAS-P scores predicted 12-month OCD severity adjusting for relevant covariates. Adherence also predicted work- and social functioning at 1-year follow-up.ConclusionsThese results indicate that ERP adherence during the brief period of cET robustly relates to improvement in OCD symptoms and functioning in both the short and long term. Assessing adherence might identify patients at risk of poor outcomes, while improving adherence may enhance ERP for treatment resistant patients.Trial RegistrationClinicalTrials.gov identifier: NCT02656342.

State-dependent effects of repetitive transcranial magnetic stimulation on symptom dimensions of obsessive-compulsive disorder: A case report

Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive neuromodulation procedure that is FDA-cleared for treating obsessive-compulsive disorder (OCD). Evidence suggests that controlling brain state during rTMS treatment can influence treatment outcomes. We present the case of a patient with refractory OCD who received symptom provocation immediately preceding rTMS treatment sessions. The patient experienced more subjective and objective improvement in OCD symptoms targeted by provocations than in other symptom domains. These results suggest the importance of brain state during rTMS and could be used to guide and optimize neuromodulation treatment for OCD.

Inflammation in obsessive-compulsive disorder: A literature review and hypothesis-based potential of transcranial photobiomodulation.

Obsessive-compulsive disorder (OCD) is a disabling neuropsychiatric disorder that affects about 2%-3% of the global population. Despite the availability of several treatments, many patients with OCD do not respond adequately, highlighting the need for new therapeutic approaches. Recent studies have associated various inflammatory processes with the pathogenesis of OCD, including alterations in peripheral immune cells, alterations in cytokine levels, and neuroinflammation. These findings suggest that inflammation could be a promising target for intervention. Transcranial photobiomodulation (t-PBM) with near-infrared light is a noninvasive neuromodulation technique that has shown potential for several neuropsychiatric disorders. However, its efficacy in OCD remains to be fully explored. This study aimed to review the literature on inflammation in OCD, detailing associations with T-cell populations, monocytes, NLRP3 inflammasome components, microglial activation, and elevated proinflammatory cytokines such as TNF-α, CRP, IL-1β, and IL-6. We also examined the hypothesis-based potential of t-PBM in targeting these inflammatory pathways of OCD, focusing on mechanisms such as modulation of oxidative stress, regulation of immune cell function, reduction of proinflammatory cytokine levels, deactivation of neurotoxic microglia, and upregulation of BDNF gene expression. Our review suggests that t-PBM could be a promising, noninvasive intervention for OCD, with the potential to modulate underlying inflammatory processes. Future research should focus on randomized clinical trials to assess t-PBM's efficacy and optimal treatment parameters in OCD. Biomarker analyses and neuroimaging studies will be important in understanding the relationship between inflammatory modulation and OCD symptom improvement following t-PBM sessions.

The use of antipsychotics in obsessive compulsive disorder.

Obsessive-compulsive disorder (OCD) is a chronic disease with a prevalence in the general population of around 2%-3%, generally accompanied by a severe impairment of functioning and quality of life. A consistent subgroup of patients may not achieve adequate symptom remission with first-line treatments (i.e., cognitive behavioral therapy, selective serotonin reuptake inhibitors [SSRIs]). The most validated option for treatment-resistant cases relies on the augmentative use of antipsychotics to SSRIs, preferably of the 'second generation'. Indeed, dopamine appears to be crucially involved in OCD neuropathology due to its implication in systems relating to goal-directed behaviour and maladaptive habits. Nevertheless, the mechanism of action of antipsychotics in OCD symptom improvement is still unclear. Risperidone, aripiprazole, and haloperidol seem to be the most useful medications, whereas 'first generation' antipsychotics may be indicated in case of comorbidity with tics and/or Tourette Syndrome. Antipsychotic augmentation may be also related to side-effects, particularly in the long term (e.g., alteration in metabolic profile, sedation, extrapyramidal symptoms). The present mini-review sought to provide the most updated evidence on augmentative antipsychotic use in treatment-resistant patients with OCD, providing a road map for clinicians in daily practice and shedding light on avenues for further research.

Agomelatine efficacy in treatment resistant obsessive-compulsive disorder: A randomized controlled trial.

Obsessive-compulsive disorder (OCD) is a prevalent and burdensome mental health condition, often resistant to conventional treatments. Agomelatine (Valdoxan), a compound acting on serotonin and melatonin systems, has shown promise in treating those with treatment-resistant OCD based on anecdotal reports and case studies. A randomized, double-blind controlled trial was conducted with 60 patients diagnosed with treatment-resistant OCD. Participants were randomized into an intervention group (receiving agomelatine 50 mg/day) and a control group (receiving placebo). OCD symptoms were assessed using the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) over a 12-week period. There were no significant differences in age, gender, or baseline Y-BOCS scores between intervention and control groups. Agomelatine did not demonstrate a significant improvement in OCD symptoms compared to placebo. Adverse events were comparable between groups, and liver enzyme levels remained within the normal range. This study, while not confirming superior efficacy compared to placebo, underscores the need for continued investigation into agomelatine's potential for treating specific subgroups of OCD patients, underscoring the need for more comprehensive and well-controlled trials in the future.

Improvement in OCD symptoms associated with serotoninergic psychedelics: a retrospective online survey

A renewed interest in the use of psychedelics for treating obsessive compulsive disorder (OCD) has emerged in the last 20 years. But pre-clinical and clinical evidence remain scarce, and little is known about the factor determining the magnitude and persistence of the therapeutic effect. We therefore designed a retrospective online survey to explore, in the general population using psychoactive drugs, their impact on OCD symptoms. We also assessed the attitude of the participants towards the substance in term of frequency of intakes. In a sample of 174 participants, classic psychedelics were reported as the only substances effective at reducing OCD symptoms. In classic psychedelics users, symptoms reduction was associated with the intensity of acute effects, itself correlated to the dose. Reports on the persistence of the therapeutic effect varied from weeks to months, but we could not find any predicting factor. Finally, the occurrence and frequency of subsequent intakes, which seemed to be limited in our sample, were predicted by the magnitude and persistence of the therapeutic effect, respectively. Our observations support the hypothesis of classic psychedelics efficacy in reducing OCD symptoms but a careful evaluation of the persistence of this effect is still needed.

Evidence Accumulation and Neural Correlates of Uncertainty in Obsessive-Compulsive Disorder

BackgroundDecision making is frequently associated with risk taking under uncertainty. Elevated intolerance of uncertainty is suggested to be a critical feature of obsessive-compulsive disorder (OCD). However, impairments of latent constructs of uncertainty processing and its neural correlates remain unclear in OCD. MethodsIn 83 participants (24 OCD patients treated with capsulotomy, 28 OCD control participants, and 31 healthy control participants), we performed magnetic resonance imaging using a card gambling task in which participants made decisions whether to bet or not that the next card would be larger than the current one. A hierarchical drift diffusion model was used to dissociate speed and amount of evidence accumulated before a decisional threshold (i.e., betting or no betting) was reached. ResultsHigh uncertainty was characterized by a smaller amount of evidence accumulation (lower thresholds), thus dissociating uncertainty from conflict tasks and highlighting the specificity of this task to test value-based uncertainty. OCD patients exhibited greater caution with poor performance and greater evidence accumulation overall along with slower speed of accumulation, particularly under low uncertainty. Bilateral dorsal anterior cingulate and anterior insula distinguished high- and low-uncertainty decision processes in healthy control participants but not in the OCD groups, indicating impairments in anticipation of differences in outcome variance and salience network activity. There were no behavioral or imaging differences relating to capsulotomy despite improvements in OCD symptoms. ConclusionsOur findings highlight greater impairments particularly in more certain trials in the OCD groups along with impaired neural differentiation of high and low uncertainty and suggest uncertainty processing as a trait cognitive endophenotype rather than a state-specific factor.

A Systematic Review of the Use of Acceptance and Commitment Therapy to Treat Adult Obsessive-Compulsive Disorder

The present review aims to critically evaluate available literature on the use of acceptance and commitment therapy (ACT) to treat adult obsessive-compulsive disorder (OCD) and to draw conclusions about using ACT to reduce OCD symptoms in adults with OCD. Databases (PsycINFO, PsycARTICLES, MEDLINE, and PubMed), Google Scholar, and article references were used to identify relevant studies through October 10, 2020. This review includes both peer-reviewed, published articles (n = 15) and unpublished theses and dissertations (n = 2) to increase the breadth of the review as suggested by PRISMA guidelines. Reviewed articles utilized ACT and at least one measure of OCD symptom severity. Information on methodological, measurement, statistical, and analytical characteristics of the included studies were extracted to determine the quality of the available studies and to inform the conclusions of this review. Seventeen studies (n = 17) with 336 participants from three countries were evaluated. The current evidence suggests that ACT can be used to reduce symptoms of OCD in adults. A conclusion supporting the use of ACT to reduce OCD symptoms can be made because of several strengths within this body of literature (e.g., use of validated OCD symptom measures, inclusion of treatment manuals, use of multiple assessment points, etc.). However, because a majority of the included studies are quasi-experimental and single-subject studies, more stringent research (i.e., randomized controlled trials) with large, diverse samples is needed to strengthen this conclusion. Additionally, dismantling studies exploring the components of ACT that lead to OCD symptom improvement are needed.

Identifying trajectories of symptom change in adults with obsessive compulsive disorder receiving exposure and response prevention therapy

Exposure and response prevention (EX/RP) is a recommended psychotherapy for obsessive-compulsive disorder (OCD). Yet, not all patients benefit equally from EX/RP. Prior studies have examined EX/RP predictors by predicting endpoint symptoms and/or pre-post symptom change, rather than accounting for trajectories of symptom change across treatment. We pooled data from four NIMH-funded clinical trials, yielding a large sample (N = 334) of adults who received a standard course of manualized EX/RP. Independent evaluators rated OCD severity using the Yale-Brown Obsessive-Compulsive Scale (YBOCS). Data were analyzed using growth mixture modeling (GMM) to detect subgroups of participants with similar trajectories of symptom change followed by multinomial logistic regression to identify baseline variables capable of predicting class membership. GMM revealed three distinct trajectory classes: 22.5% of the sample showed dramatic improvement (dramatic progress class), 52.1% showed moderate improvement (moderate progress class), and 25.4% showed little change (little to no progress class). Membership in the little to no progress class was predicted by baseline avoidance and transdiagnostic internalizing factor levels. These findings suggest that OCD symptom improvement with outpatient EX/RP occurs via distinct trajectories. These findings have implication regarding identifying treatment non-responders and personalizing treatment depending one’s baseline characteristics in order to optimize treatment effectiveness.

Emotional clarity and awareness predict obsessive–compulsive disorder symptoms during exposure and response prevention in a naturalistic treatment sample

Obsessive-compulsive disorder (OCD) is associated with “emotional disconnections” (e.g., difficulty understanding your emotions), but very limited work has examined these links prospectively or in the context of OCD treatment. This study tested the hypotheses that emotional clarity and emotional awareness would predict improvement in OCD symptoms during Exposure and Response Prevention (ExRP) in a naturalistic treatment sample, based on the putative impact of these factors on emotional processing. We tested the effect of baseline levels of emotional clarity and awareness (measured using the Difficulties in Emotion Regulation Scale) on OCD symptoms at baseline, mid- and post-treatment (Obsessive-Compulsive Inventory, Revised) in a study of adults diagnosed with OCD and receiving ExRP in an open treatment clinic ( N = 131) using multilevel modeling. Both lack of emotional clarity and lack of emotional awareness predicted OCD symptom severity at post-treatment. Lack of awareness also predicted greater improvement in OCD symptoms during treatment, while clarity did not. Consistent with previous research, individuals who reported being less clear about their emotions had more severe OCD symptoms at post-treatment. Extending previous findings, those who reported being more aware of their emotions before treatment showed less symptom improvement during treatment. Clinical and theoretical implications of these findings are discussed.

Unguided Computer-Assisted Self-Help Interventions Without Human Contact in Patients With Obsessive-Compulsive Disorder: Systematic Review and Meta-analysis.

BackgroundComputer-assisted treatment may reduce therapist contact and costs and promote client participation. This meta-analysis examined the efficacy and acceptability of an unguided computer-assisted therapy in patients with obsessive-compulsive disorder (OCD) compared with a waiting list or attention placebo.ObjectiveThis study aimed to evaluate the effectiveness and adherence of computer-assisted self-help treatment without human contact in patients with OCD using a systematic review and meta-analysis approach.MethodsRandomized controlled trials with participants primarily diagnosed with OCD by health professionals with clinically significant OCD symptoms as measured with validated scales were included. The interventions included self-help treatment through the internet, computers, and smartphones. We excluded interventions that used human contact. We conducted a search on PubMed, Cochrane Central Register of Controlled Trials, EMBASE, World Health Organization International Clinical Trials Registry Platform, and ClinicalTrials.gov, as well as the reference lists of the included studies. The risk of bias was evaluated using version 2 of the Cochrane risk-of-bias tool for randomized trials. We calculated the standardized mean differences for continuous outcomes and risk ratios for dichotomous outcomes. The primary outcomes were short-term improvement of OCD symptoms measured by validated scales and dropout for any reason.ResultsWe included 11 randomized controlled trials with a total of 983 participants. The results indicated that unguided computer-assisted self-help therapy was significantly more effective than a waiting list or psychological placebo (standard mean difference −0.47, 95% CI −0.73 to −0.22). Unguided computer-assisted self-help therapy had more dropouts for any reason than waiting list or psychological placebo (risk ratio 1.98, 95% CI 1.21 to 3.23). However, the quality of evidence was very low because of the risk of bias and inconsistent results among the included studies. The subgroup analysis showed that exposure response and prevention and an intervention duration of more than 4 weeks strengthen the efficacy without worsening acceptability. Only a few studies have examined the interaction between participants and systems, and no study has used gamification. Most researchers only used text-based interventions, and no study has used a mobile device. The overall risk of bias of the included studies was high and the heterogeneity of results was moderate to considerable.ConclusionsUnguided computer-assisted self-help therapy for OCD is effective compared with waiting lists or psychological placebo. An exposure response and prevention component and intervention duration of more than 4 weeks may strengthen the efficacy without worsening the acceptability of the therapy.Trial RegistrationPROSPERO (International Prospective Register of Systematic Reviews) CRD42021264644; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=264644

A Five-Day Intensive Treatment for Pediatric Obsessive-Compulsive Disorder: A Multiple Baseline Design Pilot Study

ABSTRACT The need for effective treatments for obsessive-compulsive disorder (OCD) in childhood is evident given that as many as 50% of the adults with OCD report symptom onset before age 15. Despite the growing evidence supporting the efficacy of Exposure and Response Prevention (ERP) for youth with OCD, children seeking services for their OCD symptoms often do not receive ERP because of difficulties with treatment accessibility. Brief time-intensive treatment programs may be a feasible treatment option for children and their families who do not have access to ERP treatment and/or live in an area where therapists trained in ERP are limited. To evaluate the initial efficacy, feasibility, and acceptability of a brief, five-day intensive ERP program for pediatric OCD, eight children with OCD were randomized to a one-week, two-week, or three-week baseline period in a single-case, non-concurrent multiple-baseline experimental design. In most cases, there were clinically significant improvements in OCD symptoms with the implementation of treatment; moreover, treatment gains were maintained at 3-month follow-up. Children and families perceived the program to be acceptable, feasible, and beneficial. This study extends the support for the efficacy and feasibility of a five-day intensive treatment program for pediatric OCD.

Improvements in error-monitoring and symptoms following low-frequency rTMS of dorsal anterior cingulate cortex in obsessive compulsive disorder; a randomized, sham-controlled study

Action monitoring deficit is a core underlying characteristic and endophenotype of Obsessive Compulsive Disorder (OCD). Dorsal anterior cingulate cortex (dACC) is heavily involved in error monitoring and cognitive control, and the hyperactivity in this region is associated with OCD symptom severity. This study aimed to test whether low frequency (LF) repetitive transcranial magnetic stimulation (rTMS) targeting dACC improves both error-monitoring performance and OCD symptoms in a randomized, sham-controlled, double-blind trial design. 20 OCD patients were randomly assigned to receive 20 sessions of Active (n = 10) or Sham (n = 10) rTMS administered twice-daily. Error-monitoring performance and symptom severity were measured pre- and post-treatment using Erikson Flanker tasks and the Yale-Brown Obsessive Compulsive Scale (Y-BOCS), with three month symptom follow-up. Following active—but not sham—rTMS, patients showed improved response time for incongruent stimuli, trials following a correct response, and for reporting and correcting errors. Significant OCD symptom improvement was observed at one-month follow-up for patients who received Active (28.0% reduction) but not Sham (11.7% reduction) stimulation. In OCD patients, LF rTMS of the dACC can simultaneously improve on-line adjustment of behaviour—by enhancing the capacity for rapid error monitoring—and clinical symptoms, suggesting a link between error monitoring impairment and OCD pathophysiology.

A-65 Quality Analysis of Deep Brain Stimulation for Obsessive–Compulsive Disorder Using a Neuropsychological Assessment Battery

Abstract Objective We completed a case study to investigate whether there are cognitive changes after Deep Brain Stimulation (DBS) surgery in the treatment of refractory Obsessive–Compulsive Disorder (OCD) as an initiation of a quality analysis due to increased referrals for this procedure at our institution. Method We evaluated a 21-year-old male before and after bilateral nucleus accumbens DBS placement for OCD. His pre-operative neurosurgery evaluation and brain imaging were unremarkable. Post-operative imaging revealed stable changes of bilateral DBS lead placement. Pre and post-operative neuropsychological testing included measures of mental status, language, memory, attention, and executive functioning. Results A reliable change estimate was obtained for each test. There was no significant change in performance on the Mini-Mental State Exam, Boston Naming Test, Logical Memory I/II, Faces I, Rey Complex Figure Test (RCFT) immediate and delayed recall, Wisconsin Card Sorting Test-64, Trail Making Tests A & B, Letter Fluency, Animal Fluency, and Stroop Color and Word Test (Stroop) color and color-word condition. There was significant decline for all California Verbal Learning Test-Second Edition trials (trials 1–5, short delay recall, and long delay recall) and RCFT recognition. There was significant improvement for the Stroop word condition. Conclusions. Given mixed findings, it is unclear the extent to which DBS impacted this patient’s overall cognitive functioning. Meanwhile, he showed improvement in OCD symptoms, to the degree that he could live alone, maintain employment, and independently manage daily activities. There is need for future studies to examine the cognitive effects of DBS for OCD, with larger samples and a control group.

Deep Brain Stimulation of the Nucleus Accumbens, Ventral Striatum, or Internal Capsule Targets for Medication-Resistant Obsessive-Compulsive Disorder: A Multicenter Study

Deep brain stimulation of the nucleus accumbens, ventral striatum, or internal capsule region has shown a 45%-60% response rate in adults with severe treatment-refractory obsessive-compulsive disorder, regardless of which target is used. We sought to improve the effectiveness of deep brain stimulation by placing the electrode along a trajectory including these 3 targets, enabling a change of stimulation site depending on the patient's response. This study used the medical records of 14 patients from 4 different Spanish institutions: 7 from the Hospital Universitario La Princesa, 3 from the Hospital Universitario Central de Asturias, 2 from Hospital Universitario Fundación Jiménez Díaz, and 2 from Hospital Universitari Son Espases. All patients were operated on under the same protocol. Qualitative and quantitative data were collected. Of 14 patients, 11 showed significant improvement in obsessive-compulsive disorder symptoms, as evident in a reduction ≥35% in Yale-Brown Obsessive Compulsive Scale scores following stimulation relative to preoperative scores. Seven patients responded to stimulation at the nucleus accumbens (the first area we set for stimulation), whereas 4 patients needed to have the active contact switched to the internal capsule to benefit from stimulation. Deep brain stimulation of the nucleus accumbens, internal capsule, and ventral striatum significantly benefited our cohort of patients with medication-resistant obsessive-compulsive disorder. Electrode insertion through the 3 main targets might confer additional therapeutic efficacy.

Internet-delivered cognitive-behaviour therapy (ICBT) for obsessive-compulsive disorder when delivered as routine clinical care: A phase IV clinical trial

Cognitive-behaviour therapy (CBT) is an effective treatment for obsessive-compulsive disorder (OCD), but many patients experience difficulty accessing this treatment. Internet-delivered CBT (ICBT) enhances access to CBT for individuals with OCD and has been shown to be efficacious in Phase I, II, and III clinical trials. However, there are fewer studies investigating ICBT for OCD in Phase IV clinical trials, which demonstrate the effectiveness of the intervention when provided as part of routine care. The aim of the present study was to report on the effectiveness of ICBT for OCD, using data from Australia’s MindSpot Clinic, a federally funded treatment service that provides free ICBT to Australian adults with anxiety, depression, and pain conditions. A total of 225 MindSpot users (68 % female; Mage = 34.82; SD = 11.02) were included in the study. Within-group effect sizes at post-treatment on the Yale-Brown Obsessive-Compulsive Scale, indicated medium effect sizes (g = 0.6; 95 % CI: 0.5−0.7), increasing to large effects at three-month follow up (g = 0.9; 95 % CI: 0.8–1.0). Effects on secondary outcome measures including measures of depression, generalized anxiety, and psychological distress ranged from (g = 0.5–0.6) at post-treatment and (g = 0.5–0.7) at three-month follow up. Results from benchmarking analyses indicated that the results from routine care were significantly smaller than those found in a recent clinical trial using the same treatment protocol. The results indicate that ICBT delivered in real world settings is associated with meaningful improvements in OCD symptoms, however future research may wish to examine which patients respond best to this treatment approach and how to enhance outcomes.

The impact of the COVID-19 pandemic on obsessive compulsive disorder: a single case study

ObjectiveA growing body of research evidence shows that individuals with Obsessive Compulsive Disorder (OCD) have been negatively affected by the COVID-19 pandemic including deterioration of OCD symptoms plus relapse from previously well-controlled OCD. The impact of the COVID-19 pandemic is discussed in a single case study of a patient with OCD consisting of contamination concerns. In addition, the effectiveness of providing Exposure and Response Prevention (ERP) virtually is evaluated with regards to the treatment outcome in COVID-19 related OCD.Case reportThis study describes a 41-year-old, single, employed female with OCD consisting of concerns of contamination and infecting others thereby causing harm. The total duration of the disorder is 32 years with the most recent presentation being of three years duration. Relapse during the pandemic resulted in OCD symptoms being solely concerned with COVID-related contamination. The questionnaires routinely completed at the time of assessment and treatment were the Obsessive Compulsive Inventory (OCI); Yale Brown Obsessive Compulsive Scale (YBOCS); Beck Depression Inventory (BDI). Clinical data were collated and analysed prior to and during the pandemic. Treatment consisted of ERP and was adapted for provision via a virtual platform. ERP involved exposure to a graded hierarchy of COVID-specific anxiety-provoking situations modified to take government guidelines into consideration.DiscussionPrior to the COVID-19 pandemic the patient's response to treatment with cognitive behavioural therapy (CBT) including ERP indicated a 79% improvement in OCD symptoms on self -rated measures. The impact of the pandemic led to a significant 65% deterioration in OCD symptoms, regarding COVID-19 contamination concerns. Intervention with ERP resulted in 73% improvement over a three-month period. Measures of depression symptoms indicated an 80% improvement pre-COVID, with a 78% deterioration at relapse. Following treatment, the patient also showed a 65% improvement in depression symptoms. Improvements have been maintained at one month follow-up.ConclusionThe case study supports literature indicating the exacerbation of OCD symptoms due to the COVID-19 pandemic for patients with contamination fears and washing compulsions. The promising results support the use of ERP as an effective treatment for COVID-related OCD symptoms. It also validates the provision of CBT interventions virtually to ensure accessibility of treatment to OCD sufferers.

Disability and functional outcomes following STN, VC/VS, and combined deep brain stimulation in obsessive compulsive disorder

BackgroundOCD severity scores mostly convey information within the domain of clinical conceptualisations. To capture the full impact of any new intervention it is crucial to measure its impact on disability. For this purpose we captured prospective data on changes in disability, function and impairments with multiple tools throughout the UCL-MRC trial of Deep brain stimulation (DBS) for Obsessive Compulsive Disorder (OCD) between 2013-2017. The clinical and cognitive outcomes from the trial have already been reported in 2019. We hypothesized a concomitant improvement in perceived and observed indicators of disability with clinical improvement in OCD symptoms. This is a preliminary report of the disability outcome data from the trial.MethodSix patients with severe treatment resistant OCD were recruited for this study from the NHS England OCD Specialist Service. Eligible participants were offered lesion surgery (anterior cingulotomy) or entry to the DBS trial. OCD medication was kept constant throughout the trial. We tested the effects of DBS by comparing baseline, VC/VS, STN, both sites and CBT stages of trial on the following three assessments of function: GAF, SDS and CAOIC. An impairment focussed interview was done to quantify changes in function specific to OCD. Friedman's test was used to test for DBS effects during the double-blind crossover phases comparing baseline, amSTN and VC/VS. Post-hoc pair-wise Conover tests for significant effects were used with FDR corrections. All significant results are reported at P < 0.05.ResultDBS had a significant effect across all phases for all above mentioned clinical measures. For all three measures of disability, there were significant improvements after both amSTN and VC/VS DBS. For all three measures of disability the effect of VC/VS DBS was significantly better that amSTN DBS. For all three measures of disability there was a non-significant trend (p = 0.058) for stimulation at both sites to have a better effect than stimulation of one site alone. For all three measures of disability, there were no significant difference between DBS alone and DBS and CBT.ConclusionThis study is the first to have directly compared differential effects of STN versus VC/VS DBS stimulation in OCD patients whilst testing clinical, cognitive and disability outcomes. The results of this study indicate that although both sites are equally effective in reducing OCD, stimulating VC/VS leads to a significantly greater improvement on disability scores in severe OCD.