Obsessive-compulsive Research Articles

Machine learning in obsessive-compulsive disorder medications

Obsessive-compulsive disorder (OCD) is the fourth most common psychiatric disorder with a significant morbidity rate. Despite various treatment modalities and medications, some patients show no definitive response. The aim of this study is to classify the medications of OCD with machine learning (ML) methods and to compare the classification performances of the decision tree (DT), chi-square automatic interaction detection (CHAID) algorithm, and linear model in ML methods. This research is a descriptive analytical study based on co-word and artificial intelligence methods. The DT models were created with a target (total weight link strength). For hyperparameter optimization, the Gini index was used as the weight total link strength. The performance of the DT model was evaluated based on the prediction model. A total of 116 drugs were extracted from 6574 articles based on co-word analysis, and 56 drugs were classified as the DT's root. These drugs were categorized into six groups in the EWKM diagram. The DT was constructed using the weight.total.link index, with 7 items in Label 3 and 42 items in Label 5 serving as DT leaves. The ML analysis provided valuable insights into the efficacy of various medications such as clomipramine, duloxetine, and pindolol, as well as supplements such as folate, in the treatment of OCD. Treating concomitant diseases, namely hypothyroidism and streptococcal infection could improve the efficacy of treatment.

Increased threat learning after social isolation in human adolescents.

In animal models, social isolation impacts threat responding and threat learning, especially during development. This study examined the effects of acute social isolation on threat learning in human adolescents using an experimental, within-participant design. Participants aged 16-19 years underwent a session of complete isolation and a separate session of isolation with virtual social interactions, counterbalanced between participants, as well as a baseline session. At baseline and following each isolation session, participants reported their psychological state and completed a threat learning task in which self-report ratings and physiological responses to learned threat and safety cues were measured. Threat learning increased after both isolation sessions in two ways. First, participants found the learned threat cue more anxiety-inducing and unpleasant after isolation compared with baseline. Second, during threat extinction, electrodermal activity was partially elevated after isolation compared with baseline. Further, the results suggested that isolation influenced threat learning through state loneliness. Threat learning is central to threat-related disorders including anxiety, phobias, obsessive-compulsive disorder (OCD) and post-traumatic stress disorder (PTSD), and our findings suggest that isolation and loneliness in adolescence might increase vulnerability to the emergence of these disorders through increased threat learning.

Assessing the existence of trauma-related diagnostic overshadowing in adult populations.

Previous research with youth has shown that clinicians tend to diagnose and treat posttraumatic stress disorder (PTSD) in trauma-exposed clients, even when clinical presentations indicate that PTSD is not the primary diagnosis. The current study sought to examine this trauma-related diagnostic overshadowing bias in adult cases across different types of trauma exposure. Mental health professionals (N = 232) reviewed two vignettes describing an adult seeking treatment for either obsessive-compulsive disorder (OCD) symptoms or substance use disorder (SUD) symptoms (target disorders). Each participant was randomly assigned to one vignette in which one client endorsed exposure to trauma (i.e., sexual trauma or physical trauma) and one vignette in which the client reported no trauma exposure. Following each vignette, participants responded to questions related to the diagnosis and treatment of the client. In both cases, participants were significantly less likely to choose the target diagnosis and treatment and more likely to choose a PTSD diagnosis and trauma treatment when trauma exposure was present in the vignettes. Evidence for the bias was strongest for vignettes that contained sexual trauma compared to vignettes that contained physical trauma. Evidence for the bias was also more consistent in the OCD case compared to the SUD case. Results indicate evidence for the existence of trauma-related diagnostic overshadowing in adult populations, though the strength of this bias may be dependent on aspects of the trauma and overall clinical presentation. More work is needed to understand factors that may impact the presence of this bias. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Intercalated amygdala dysfunction drives avoidance extinction deficits in the Sapap3 mouse model of obsessive-compulsive disorder

The avoidance of aversive stimuli through negative reinforcement learning is critical for survival in real-world environments, which demand dynamic responding to both positive and negative stimuli that often conflict with each other. Individuals with obsessive-compulsive disorder (OCD) commonly exhibit impaired negative reinforcement and extinction, perhaps involving deficits in amygdala functioning. An amygdala subregion of particular interest is the intercalated nuclei of the amygdala (ITC) which has been linked to negative reinforcement and extinction, with distinct clusters mediating separate aspects of behavior. This study focuses on the dorsal ITC cluster (ITCd) and its role in negative reinforcement during a complex behavior that models real-world dynamic decision making. We investigated the impact of ITCd function on negative reinforcement and extinction by applying fiber photometry measurement of GCamp6f signals and optogenetic manipulations during a platform-mediated avoidance task in a mouse model of OCD-like behavior: the Sapap3-null mouse. We find impaired neural activity in the ITCd of male and female Sapap3-null mice to the encoding of negative stimuli during platform-mediated avoidance. Sapap3-null mice also exhibit deficits in extinction of avoidant behavior, which is modulated by ITCd neural activity. Sapap3-null mice fail to extinguish avoidant behavior in platform-mediated avoidance, due to heightened ITCd activity. This deficit can be rescued by optogenetically inhibiting ITCd during extinction. Together, our results provide insight into the neural mechanisms underpinning negative reinforcement deficits in the context of OCD, emphasizing the necessity of ITCd in responding to negative stimuli in complex environments.

The deer mouse (Peromyscus maniculatus bairdii) as a model organism to explore the naturalistic psychobiological mechanisms contributing to compulsive-like rigidity: A narrative overview of advances and opportunities

Deer mice (Peromyscus maniculatus bairdii), a wildtype species native to North America, have been investigated for their spontaneous compulsive-like behaviour. The repetitive and persistence nature of three unique compulsive-like phenotypes in deer mice, i.e., high stereotypy (HS), large nesting behaviour (LNB) and high marble burying (HMB), are characterized by behavioural and cognitive rigidity. In this narrative review, we summarize key advances in the model's application to study obsessive-compulsive disorder (OCD), emphasizing how it may be used to investigate neurobiological and neurocognitive aspects of rigidity. Indeed, deer mice provide the field with a unique naturalistic and spontaneous model system of behavioural and cognitive rigidity that is useful for investigating the psychobiological mechanisms that underpin a range of compulsive-like phenotypes. Throughout the review, we highlight new opportunities for future research.

Twice-a-day low-frequency repetitive transcranial magnetic stimulation (LF-rTMS) over right dorsolateral prefrontal cortex in treatment-resistant obsessive–compulsive disorder: A case report

Twice-a-day low-frequency repetitive transcranial magnetic stimulation (LF-rTMS) over right dorsolateral prefrontal cortex in treatment-resistant obsessive–compulsive disorder: A case report

Beyond Eyeball Tests: A Methodical Rebuttal to Fillon et al.'s Commentary.

In our original study, "Consumed by Creed" (Adam-Troian & Bélanger, 2024), we established significant and consistent associations between obsessive-compulsive disorder symptom severity and radical intentions across four distinct U.S. population samples-Environmentalists, Republicans, Democrats, and Muslims-partially or fully mediated by obsessive passion. Fillon et al. (2024) challenged our findings, alleging methodological errors and an excessive degree of researcher flexibility, which they claim could lead to false-positive results. In this response, we critically examine Fillon et al.'s commentary, arguing that it exemplifies flawed meta-scientific critique. We demonstrate that their approach relies on a series of unsupported and misleading claims, including a misinterpretation of the literature, unjustified reliance on visual data inspection, speculative assumptions about religious influences on our findings, and a shifting of the burden of proof. Through rigorous re-analyses, we reaffirm the robustness of our original results and address the unfounded allegations regarding our methodological practices. We also critique Fillon et al.'s approach, highlighting the necessity of domain-specific expertize in meta-scientific evaluations and cautioning against the risks of speculative and defamatory criticism in academic discourse. This exchange underscores the importance of maintaining rigorous standards in both original research and its critique, ensuring that scientific debate remains grounded in evidence rather than conjecture.

Assessing the Pharmacotherapy and Clinical Outcomes After Deep Brain Stimulation for Treatment-Refractory Obsessive-Compulsive Disorder: A Case-Cohort Study.

Background: In the search for effective treatments for refractive obsessive-compulsive disorder (OCD), deep brain stimulation (DBS) serves as an alternative option for those with minimal response to pharmacotherapy. The rarity of reports regarding DBS use for OCD is attributed to the invasive nature of the procedure: placement of electrodes within targeted areas of the brain to provide neuromodulation. This treatment of last resort may decrease functional impairment and pharmacologic complications for a debilitating mental illness. This study compares the pharmacotherapy utilization and treatment outcomes of five treatment-refractory OCD patients after the placement of DBS with those of a matched cohort. Methods: This retrospective, single-center, case-cohort study reviewed the electronic medical records of five subjects treated with DBS for treatment-refractory OCD and compared them to a similar treatment-refractory cohort whose OCD was treated without the use of DBS. Control subjects were matched by age, sex, years since diagnosis, number of previous medication class trials, and additional clinical factors. Inclusion criteria were defined as those that are at least eighteen years of age, assigned a primary diagnosis of OCD per the ICD-10 classification, and received DBS treatment for refractory OCD. Exclusion criteria included comorbid psychotic disorders, unstable neurological or coagulation disorder(s), and/or an eating disorder diagnosis. The primary endpoint was the change in the number of psychotropic medications two years after implantation for the DBS cohort and two years after psychiatric decompensation for the comparator cohort. Secondary endpoints included: Y-BOCS (the Yale-Brown Obsessive-Compulsive Scale) changes over time, duration quantity of psychotropic medication classes prescribed, and additional symptomology scale changes. Results: Patients receiving DBS were more likely to be on fewer medications and trialed fewer medications after treatment. One out of the five patients was found to be a responder in Y-BOCS scoring after DBS treatment. A reduction in anxiety and depression symptoms was also seen in the HAM-A and HAM-D scales for those that received DBS. Conclusions: A reduction in psychiatric medications trialed during therapy was observed, as well as varying reductions in OCD, anxiety, and depression symptomology following DBS. Results from this study indicate that DBS implantation may contribute to a reduction in polypharmacy while displaying DBS's potential impact on comorbid anxiety and depression symptoms. Given that the small sample size limits generalizability, additional prospective, randomized trials comparing the efficacy of DBS for OCD-specific symptomology and its overall impact on pharmacotherapy are needed in order to further establish the role of DBS as an accepted treatment option for OCD.

Breast Cancer and Mental Health: Incidence and Influencing Factors-A Claims Data Analysis from Germany.

With breast cancer (BC) survival improving due to optimized therapy, enhancing quality of life has become increasingly important. Both diagnosis and treatment, with their potential side effects, pose risks to mental well-being. Our study aimed to analyze the incidence and potential risk factors for mental disorders in BC patients. This retrospective analysis used claims data from AOK Baden-Wuerttemberg, including 11,553 BC patients diagnosed via ICD code C50 between 2010 and 2020 and 31,944 age-matched controls. Patients with mental disorders in the 12 months prior to diagnosis were excluded. Mental disorders were categorized into eight groups based on ICD codes: anxiety, obsessive compulsive disorder, adjustment disorder, dissociative disorder, hypochondriac disorder, affective disorder, mania, and other neuroses. Mental disorders were significantly more common in BC patients than in controls (64.2% vs. 38.1%, p < 0.01, OR 2.91, 95%CI [2.79, 3.04]). In particular, hypochondriac, anxiety, affective, and adjustment disorders occurred significantly more often in BC patients. No differences were found for mania, bipolar disease, other neuroses, obsessive compulsive-, or dissociative disorders. Furthermore, endocrine therapy was associated with psychological comorbidities (OR 1.69, p < 0.001, 95%CI [1.53, 1.86]), while primarily metastasized patients (stage C) had a lower risk than adjuvant patients in stage A (OR 0.55, p < 0.0001, 95%CI [0.49, 0.61]). Regarding surgical treatment, mastectomy patients showed lower rates of mental illnesses (61.2%) than those with breast-conserving treatment (71.6%), or especially breast reconstruction (78.4%, p < 0.01). Breast reconstruction was also associated with more hypochondriac (p < 0.01) and adjustment disorders (p < 0.01). So, BC patients experience significantly more mental disorders than controls, particularly when treated with endocrine therapy and breast reconstructive surgery.

The Predictive Role of Personality Disorders and Personality Traits in Death Anxiety.

The current study investigates the interplay between personality traits, personality disorders, and death anxiety in a sample of 2331 participants (49% males; 51% females) across two phases. The Death Anxiety Scale, the Psychosocial Personality Inventory, and the Personality Diagnostic Questionnaire were utilized. The findings revealed significant predictive relationships between personality disorders and death anxiety. Positive correlations were observed between death anxiety and nine personality disorders, including avoidant (r = .227), borderline (r = .123), dependent (r = .157), depressive (r = .098), histrionic (r = .074), narcissistic (r = .111), negativistic (r = .103), obsessive-compulsive (r = .126), and schizotypal (r = .078) personality disorders (p < .001). Death anxiety had significant inverse correlations with leadership (r = -.101) and spirituality (r = -.099) traits (p < .005). Avoidant personality disorder projected the highest prediction for death anxiety (β = .227; p = .000). Leadership as a personality trait demonstrated an outstanding ability to prevent death anxiety (β = -.101; p = .013). These findings make a unique contribution to the literature of death anxiety, personality disorders, and personality traits.

Analysis of the Characteristics and Influencing Factors of Perinatal Obsessive-Compulsive Symptoms in Elderly Parturients.

Aims/Background Perinatal obsessive-compulsive symptoms are significant predictors of increased postpartum anxiety, depression, and bipolar disorder. These symptoms have persistent adverse effects on both mothers and children. Currently, there are few reports in the literature on obsessive-compulsive disorder in elderly parturient women in China. This study primarily discusses the clinical characteristics of perinatal obsessive-compulsive symptoms in elderly parturient women and analyzes their influencing factors, aiming to provide references for clinical prevention and treatment. Methods This research employed a cross-sectional design, utilizing a convenience sampling method to select elderly parturients who delivered at Panjin Central Hospital from September 2022 to August 2023. The assessment instruments included a general data questionnaire, the Yale-Brown Obsessive Compulsive Scale (Y-BOCS), the self-rating anxiety scale (SAS), the edinburgh postpartum depression scale (EPDS), and the sense of coherence scale (SOC-13). The relationship between the severity of obsessive-compulsive symptoms and negative emotions and psychological burden was examined through Pearson correlation analysis. Additionally, the influencing factors of perinatal obsessive-compulsive symptoms were analyzed using multivariate logistic regression. Results In this study, a total of 124 questionnaires were distributed, and 122 valid questionnaires were recovered, yielding an effective recovery rate of 98.39%. Among the 122 elderly parturients, 37 were positive for perinatal obsessive-compulsive disorder, accounting for 30.33% (37/122). Among the 37 elderly parturients with perinatal obsessive-compulsive symptoms, 64.86% had both obsessive-compulsive thoughts and behaviors, 21.62% had obsessive-compulsive thoughts as the main symptom (8/37), and 13.51% had obsessive-compulsive behaviors (5/37). Multivariate logistic regression analysis showed that pregnancy history, pregnancy complications, fetal health, SOC-13 score, SAS score, and EPDS score were independent risk factors for positive perinatal obsessive-compulsive symptoms (p < 0.05). Conclusion The incidence of perinatal obsessive-compulsive symptoms in elderly parturient women is high. Obsessive-compulsive thoughts primarily involve fears of injury and contamination, while obsessive-compulsive behaviors mainly consist of compulsive checking and cleaning. The occurrence of perinatal obsessive-compulsive disorder is associated with factors such as pregnancy and childbirth history, pregnancy complications, fetal health, negative emotions, and stress resistance.

Medical Psychiatric Challenges in the Treatment of Obsessive-Compulsive Disorder and Eating Disorders

This paper examines the intricate relationship between Obsessive-Compulsive Disorder (OCD) and eating disorders (EDs), focusing on their diagnostic criteria, comorbidity, shared characteristics, and the profound medical and psychiatric complications that arise from these conditions. OCD is characterized by intrusive obsessions and compulsions that significantly impact daily functioning, while EDs, including Anorexia Nervosa, Bulimia Nervosa, and Binge-Eating Disorder, involve severe disturbances in eating behaviors and body image. These disorders often co-occur, with up to 41% of individuals with EDs also suffering from OCD. The shared symptoms, such as obsessions, compulsions, avoidance behaviors, and perfectionism, highlight the complex interplay between OCD and EDs, complicating diagnosis and treatment. The medical complications associated with this comorbidity are severe and varied, affecting multiple organ systems. Gastrointestinal issues, proctological problems, oral health deterioration, cardiological dysfunction, electrolyte imbalances, kidney disorders, and hormonal dysregulation are common. Additionally, sleep disorders are prevalent, further exacerbating both psychiatric and physical health outcomes. Effective treatment requires a holistic approach that addresses the unique needs of each individual, with integrated care involving specialists across medical and mental health fields. This comprehensive approach is crucial to mitigating the devastating impact of OCD and EDs, improving overall well-being and quality of life for affected individuals.

Characteristics of incident benzodiazepine recipients among US veterans with posttraumatic stress disorder.

In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time. While benzodiazepine prescribing among veterans with posttraumatic stress disorder (PTSD) declined substantially in the Veterans Health Administration over the past decade, little is known about current incident prescribing. Our objective was therefore to describe patient, provider, facility, and prescribing characteristics among veterans with PTSD who were incident benzodiazepine recipients in 2022 and contrast these to the characteristics for incident recipients in 2012. This retrospective observational study included all veterans with PTSD who received an incident benzodiazepine prescription during calendar year 2022 and separately for 2012. The distribution of patient, provider, facility, and benzodiazepine prescribing characteristics was contrasted between years. Stratified subanalyses were conducted by potential non-PTSD benzodiazepine indication, including anxiety and sleep disorders. A total of 28,310 (6.6%) incident benzodiazepine recipients were identified in 2012, which decreased to 16,776 (1.9%) incident recipients in 2022. The proportion of initial prescriptions written for a days' supply of 30 or more days decreased from 75.6% to 51.7%, and the proportion who received a second prescription within 6 months decreased from 68.7% to 53.5%. The proportion of patients with diagnoses for potential benzodiazepine indications also increased, including for generalized anxiety disorder (15.1% increase), obsessive compulsive disorders (0.6% increase), panic disorder (6.7% increase), and sleep disorders (22.9% increase). As incident benzodiazepine prescribing among veterans with PTSD decreased over the past decade, so did the volume of drug dispensed and duration of therapy, while the prevalence of documented prescriptions for non-PTSD indications increased.

Obsessive-compulsive disorder in a very young child

Obsessive-compulsive disorder in a very young child

Deprescribing Antidepressants in Children and Adolescents: A Systematic Review of Discontinuation Approaches, Cross-Titration, and Withdrawal Symptoms.

Background: Antidepressant medications, including selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs), are commonly used to treat depressive, anxiety, and obsessive-compulsive disorders in youth. Yet, data on discontinuing these medications, withdrawal symptoms, and strategies to switch between them are limited. Methods: We searched PubMed and ClinicalTrials.gov through June 1, 2024, to identify randomized controlled trials assessing antidepressant discontinuation in youth. We summarized pediatric pharmacokinetic data to inform tapering and cross-titration strategies for antidepressants and synthesized these data with reports of antidepressant withdrawal. Results: Our search identified 528 published articles, of which 28 were included. In addition, 19 records were obtained through other methods, with 14 included. The corpus of records included 13 randomized, double-blind, placebo-controlled trials (3026 patients), including SSRIs (K = 10), SNRIs (K = 4), andTCAs (K = 1), ranging from 4 to 35 weeks. Deprescribing antidepressants requires considering clinical status, treatment response, and, in cross-titration cases, the pharmacokinetics and pharmacodynamics of both medications. Antidepressant withdrawal symptoms are related to the pharmacokinetics of the medication, which vary across antidepressants and may include irritability, palpitations, anxiety, nausea, sweating, headaches, insomnia, paresthesia, and dizziness. These symptoms putatively involve changes in serotonin transporter expression and receptor sensitivity, impacting the serotonin, dopamine, and norepinephrine pathways. Conclusions: Although approaches to deprescribing antidepressants in pediatric patients are frequently empirically guided, accumulating data related to the course of relapse and withdrawal symptoms, as well as the pharmacokinetic and pharmacodynamic properties of medications, should inform these approaches. Recommendations within this review support data-informed discussions of deprescribing-including when and how-that are critically important in the clinician-family-patient relationship.

The Intersection of Anorexia Nervosa and Personality Disorders: A Comprehensive Review of Comorbidities, Influencing Factors, and Therapeutic Approaches

Complex eating disorders like anorexia nervosa (AN) and personality disorders (PDs), including obsessive-compulsive personality disorder (OCPD) and borderline personality disorder (BPD), often co-occur. The confluence of PDs and AN poses distinct difficulties in terms of diagnosis, prognosis, and therapy, complicating clinical management and producing less favorable results. To summarize the most recent findings on the co-occurrence of anorexia nervosa and personality disorders, this review will look at their prevalence, psychopathological relationships, effects on treatment results, and efficacy of different therapy modalities, with a thorough search conducted, concentrating on research published between 2000 and 2024, utilizing peer-reviewed publications from PubMed, PsycINFO, and Proquest. Past literature presents a substantial overlap between PDs and AN, and concomitant PDs have been linked to recurrence rates, treatment resistance, and more severe types of AN. The psychopathological relationships among these illnesses are complex, encompassing both common and unique etiological paths. Depending on the PD implicated, various therapy modalities, such as dialectical behavior therapy (DBT) and cognitive behavioral therapy (CBT), have been investigated with varying degrees of success. This review emphasizes the need for more specialized, integrated treatment approaches targeting AN and concomitant PDs and appeals that future research should concentrate on creating tailored therapies and early detection techniques to enhance therapeutic results. The results emphasize the importance of considering personality pathology while managing AN to improve treatment efficacy and promote long-term recovery.

Effective deep brain stimulation for obsessive-compulsive disorder after failed anterior capsulotomy: illustrative cases.

Obsessive-compulsive disorder (OCD) is a psychiatric condition characterized by recurrent, unwanted thoughts (obsessions) and repetitive behaviors (compulsions) performed to relieve distress related to the obsessions. For patients with severe illness refractory to first-line pharmacotherapy and psychotherapy, neurosurgical treatments such as deep brain stimulation (DBS) and stereotactic lesioning are an option. The choice between DBS and lesioning is often driven by patient preference, but these options are not mutually exclusive. Here, the authors highlight the success of one surgical therapy (DBS) after the failure of another (lesioning). Two patients with severe, treatment-refractory OCD underwent DBS lead implantation targeting the ventral capsule/ventral striatum after they did not attain any worthwhile benefit from a previous anterior capsulotomy. Both patients showed significant improvement (≥ 35% reduction in Yale-Brown Obsessive-Compulsive Scale [YBOCS] score) of their OCD symptoms at the long-term follow-up after DBS. One patient experienced a 37% reduction in symptom severity as measured by the YBOCS, and the other patient experienced a 47% reduction. DBS and lesioning procedures are both effective surgical options for patients with intractable OCD. In these cases, the authors demonstrate that DBS can be utilized even after a lesioning procedure in nominally the same target (ventral portion of the anterior limb of the internal capsule). https://thejns.org/doi/10.3171/CASE24289.

Prevalence and severity of insomnia in adult outpatients attending Kasralainy Psychiatry and Addiction Treatment Hospital

BackgroundInsomnia is common among patients with psychiatric disorders and affects the clinical presentation and outcomes of the psychiatric disorder. The presentation of insomnia varies according to the type and severity of the psychiatric disorder.ObjectivesThis cross-sectional study aimed to assess the prevalence and severity of insomnia in adult psychiatric outpatients attending Psychiatry and Addiction Medicine Hospital, Faculty of Medicine, Cairo University. The study included 390 patients diagnosed with the following disorders: depressive disorders (n = 126 (32.2%)), anxiety disorders (n = 69 (17.6%)), psychotic spectrum disorders (n = 67 (17.1%)), bipolar and related disorders (n = 50 (12.8%)), trauma and stress-related disorders (n = 46 (11.8%)), obsessive–compulsive disorder (n = 30 (7.7%)), and somatic symptoms disorders (n = 2 (0.5%)). Patients were assessed using the Sleep Disorder Interview, Pittsburgh Sleep Quality Index (PSQI), Insomnia Severity Index (ISI), and Global Assessment of Functioning Scale (GAF).ResultsAmong the assessed patients, 314 (80.5%) had insomnia, with a higher prevalence in females (91.5%) compared to males (67.2%). The prevalence of insomnia was 96% in depressive disorders, 97.1% in anxiety disorders, 49.3% in psychotic disorders, and 32% in bipolar and related disorders; while all patients with trauma and stress-related disorders, obsessive–compulsive disorders, and somatic symptoms disorders had insomnia.The severity of insomnia as measured by ISI was positively correlated with the global functioning score (r = 0.341, p = < 0.001) and negatively correlated with the duration of the psychiatric illness (r = − 0.285, p = < 0.001).ConclusionsInsomnia is highly prevalent in outpatients with psychiatric disorders.

Long-term clinical outcome of a novel bilateral capsulotomy with focused ultrasound in refractory obsessive-compulsive disorder treatment.

Magnetic resonance-guided focused ultrasound (MRgFUS) capsulotomy is a promising treatment for refractory obsessive-compulsive disorder (OCD); however, long-term clinical outcome studies are lacking. We aimed to investigate the long-term efficacy and safety of MRgFUS capsulotomy in patients with refractory OCD. Ten of the eleven patients who underwent MRgFUS capsulotomy for treatment-resistant OCD between 2013 and 2014 were included in this study. Clinical outcomes were assessed after 10 years of follow-up post-MRgFUS capsulotomy using tools such as neuropsychological test, the Frontal Systems Behavior Scale (FrSBe), and a locally developed MRgFUS-patient-centered outcomes questionnaire. After 10 years of follow-up, there was a mean improvement of 52.3% in the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) score. Seven out of the ten participants responded fully (Y-BOCS reduction ≥35% + CGI-I 1 or 2) to the procedure, two of whom achieved remission (Y-BOCS score ≤12 and CGI-S 1 or 2). Obsessive-compulsive symptoms and overall functioning significantly reduced and improved, respectively (Y-BOCS = 20.7 after 2 years vs. 16.4 after 10 years, p = 0.012; Global Assessment of Functioning = 57.4 after 2 years vs. 69.0 after 10 years, p = 0.011). The patients experienced significantly improved frontal lobe-related functions (FrSBe Sum before 91.0 ± 17.6 vs. after 78.6 ± 17.7, p < 0.05). No adverse effects, including cases of suicide and neurological deficits, were reported. The majority of the respondents were generally satisfied with MRgFUS capsulotomy. MRgFUS capsulotomy is an effective and safe treatment option for the treatment of severe refractory OCD with sustained efficacy even after 10 years.

A burden of rare copy number variants in obsessive-compulsive disorder.

Current genetic research on obsessive-compulsive disorder (OCD) supports contributions to risk specifically from common single nucleotide variants (SNVs), along with rare coding SNVs and small insertion-deletions (indels). The contribution to OCD risk from rare copy number variants (CNVs), however, has not been formally assessed at a similar scale. Here we describe an analysis of rare CNVs called from genotype array data in 2248 deeply phenotyped OCD cases and 3608 unaffected controls from Sweden and Norway. Cases carry an elevated burden of CNVs ≥30 kb in size (OR = 1.12, P = 1.77 × 10-3). The excess rate of these CNVs in cases versus controls was around 0.07 (95% CI 0.02-0.11, P = 2.58 × 10-3). This signal was largely driven by CNVs overlapping protein-coding regions (OR = 1.19, P = 3.08 × 10-4), particularly deletions impacting loss-of-function intolerant genes (pLI >0.995, OR = 4.12, P = 2.54 × 10-5). We did not identify any specific locus where CNV burden was associated with OCD case status at genome-wide significance, but we noted non-random recurrence of CNV deletions in cases (permutation P = 2.60 × 10-3). In cases where sufficient clinical data were available (n = 1612) we found that carriers of neurodevelopmental duplications were more likely to have comorbid autism (P < 0.001), and that carriers of deletions overlapping neurodevelopmental genes had lower treatment response (P = 0.02). The results demonstrate a contribution of rare CNVs to OCD risk, and suggest that studies of rare coding variation in OCD would have increased power to identify risk genes if this class of variation were incorporated into formal tests.