Obsessive–compulsive disorder (OCD) is a prevalent and highly disabling condition, characterized by a range of phenotypic expressions, potentially associated with geo-cultural differences. This article aims to provide an overview of the published studies by the International College of Obsessive-Compulsive Spectrum Disorders, in relation to the Snapshot database which has, over the past 10 years, gathered clinical naturalistic data from over 500 patients with OCD attending various research centers/clinics worldwide. This collaborative effort has provided a multi-cultural worldwide perspective of different socio-demographic and clinical features of patients with OCD. Data on age, gender, smoking habits, age at onset, duration of illness, comorbidity, suicidal behaviors, and pharmacological treatment strategies are presented here, showing peculiar differences across countries.

In the last 20 years, technology is increasingly integrated into daily life. Daily interactions with smart devices have become routine with much of our lives taking place in a digital environment. It is therefore not surprising that the manifestations of psychiatric disorders including Obsessive–Compulsive Disorder have changed in recent years reflecting this reality. Clinicians should be aware of the potential impact of such changes when considering symptom presentation and diagnosis.

The working environment may have a significant effect on response to treatment of depression and this issue has not yet been sufficiently addressed in the scientific literature. There is evidence showing that being engaged in high-level positions can be an obstacle to the success of treatment. This article discusses the few evidence in the literature and some of the possible mechanisms involved. Specific personality attributes and difficulties in adapting to depression may delay access to care and may also reduce treatment compliance. The presence of stress in jobs that require high cognitive function and lack of social support may be elements that hinder the recovery process. Residual symptoms that impact on cognitive functions may undermine adherence to treatment and adversely affect the response. The implications of these issues are potentially relevant for clinical practice in the treatment of depression and for future research.

One of the main changes in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) was the separation of Stress Related Disorders from the Anxiety chapter. This separation paves the way to examine the unique characteristics of posttraumatic stress disorder (PTSD) (ie, identifiable onset, memory processes, etc) and related neural mechanisms. The time that elapses between the traumatic event and the manifestation of the disorder may also be addressed as the “golden hours,” or the window of opportunity in which critical processes take place and relevant interventions may be administrated.

Obsessive compulsive disorder (OCD) showed a lower prevalence of cigarette smoking compared to other psychiatric disorders in previous and recent reports. We assessed the prevalence and clinical correlates of the phenomenon in an international sample of 504 OCD patients recruited through the International College of Obsessive Compulsive Spectrum Disorders (ICOCS) network.

Cigarette smoking showed a cross-sectional prevalence of 24.4% in the sample, with significant differences across countries. Females were more represented among smoking patients (16% vs 7%; p<.001). Patients with comorbid Tourette’s syndrome (p<.05) and tic disorder (p<.05) were also more represented among smoking subjects. Former smokers reported a higher number of suicide attempts (p<.05).

We found a lower cross-sectional prevalence of smoking among OCD patients compared to findings from previous studies in patients with other psychiatric disorders but higher compared to previous and more recent OCD studies. Geographic differences were found and smoking was more common in females and comorbid Tourette’s syndrome/tic disorder.

Posttraumatic stress disorder (PTSD) was associated in the past mainly with combatrelated events. This was reflected in the names given to the disorder, ie, “shell shock,” “soldier's heart,” “combat neurosis,” and “operational fatigue.” Only following the realization that PTSD can be related to all types of traumatic events, including noncombat associated events, were the terms “traumatic neurosis” and, later, “PTSD” coined. These new terms reflect the understanding that the condition need not necessarily be associated with war, but may also be related to events such as a severe automobile accident, violent personal assault (eg, rape, physical attack, robbery, or mugging), terrorist attack, natural or human-made disaster (such as a fire), witnessing serious injury or death due to any of the above, as well as to other situations, such as being kidnapped or being held hostage.

The tendency to interpret the symptoms of what we would consider now as PTSD, as a “normal response” to traumatic events was another factor that held up progress in the field. It is important to note that PTSD is a pathological response: The vast majority of individuals who are exposed to a traumatic event will later adapt and continue on with their lives. Only a small percent, which partially depends on the type of trauma and is partially associated with several risk factors, will develop a pathological fixation on the traumatic event, namely, PTSD.

It has been estimated that approximately one-third of the population will be exposed to a severe trauma (according to the definition of PTSD) during their lifetime.

A summary of the Third International Obsessive Compulsive Disorder Conference proceedings on neuroimaging research and neurocircuitry models of obsessive-compulsive disorder (OCD) is presented. This survey of recent and ongoing research indicates that a wide range of modern techniques and experimental strategies are being employed in a complementary fashion to enhance our understanding of OCD. Imaging studies in animal models of OCD are helping to elaborate relevant normal anatomy and neuro-chemistry. Functional imaging methods are being employed in conjunction with behavioral, pharmacologic, and cognitive challenge paradigms. Magnetic resonance spectroscopy as well as radiotracer methods are being utilized to measure neurochemical and neuropharmacologic indices in OCD. Transcranial magnetic stimulation has emerged as a tool for probing neurocircuitry that may also have therapeutic potential. Experimental designs and data-analytic methods are evolving to help elucidate the pathophysiology of OCD and related disorders, delineate neurobiologically meaningful subtypes of OCD, and identify potential predictors of treatment response. Collectively, these efforts promise important advances as we approach the new millennium.

In awareness of recent developments and upcoming future changes in the conceptualization of obsessive-compulsive disorders (OCDs), a group of 14 experts with specific experience in this area decided that a consensus statement on the present and future of OCD is timely. The group, with their long-term interest and productivity in the area of OCD, met with the specific aim of providing a global perspective. Ten countries from four continents were represented in this 2-day consensus meeting.

The meeting took place in Cape Town on February 27–28, 2006. The participants were asked to prepare and submit a relevant presentation before the meeting in order to enrich the discussion. Six presentations reviewed the following aspects of OCD: diagnosis, epidemiology, neurobiology, treatment, special populations, and pediatric OCD. A draft consensus was prepared, based on the presentations, recent consensus statements, evidence-based guidelines, and the ensuing discussions.

What are the latest psychotherapeutic and pharmacotherapeutic treatment recommendations for obsessive-compulsive disorder (OCD)? OCD is a relatively common disorder with a lifetime prevalence of ~2% in the general population. It often has an early onset, usually in childhood or adolescence, and frequently becomes chronic and disabling if left untreated. High associated healthcare utilization and costs, and reduced productivity resulting in loss of earning, pose a huge economic burden to OCD patients and their families, employers, and society. OCD is characterized by the presence of obsessions and compulsions that are time-consuming, cause marked distress, or significantly interfere with a person's functioning. Most patients with OCD experience symptoms throughout their lives and benefit from long-term treatment. Both psychotherapy and pharmacotherapy are recommended, either alone or in combination, for the treatment of OCD. Cognitive-behavioral therapy is the psychotherapy of choice. Pharmacologic treatment options include the tricyclic antidepressant clomipramine and the selective serotonin reuptake inhibitors (SSRIs) citalopram, fluoxetine, fluvoxamine, paroxetine, and sertraline. These have all shown benefit in acute treatment trials; clomipramine, fluvoxamine, fluoxetine, and sertraline have also demonstrated benefit in long-term treatment trials (at least 24 weeks), and clomipramine, sertraline, and fluvoxamine have United States Food and Drug Administration approvals for use in children and adolescents. Available treatment guidelines recommend first-line use of an SSR1 (ie, fluoxetine, fluvoxamine, paroxetine, sertraline, or citalopram) in preference to clomipramine, due to the latter's less favorable adverse-event profile. Further, pharmacotherapy for a minimum of 1–2 years is recommended before very gradual withdrawal may be considered.

The aim of this meeting was to obtain a consensus on what constitutes good research practice in posttraumatic stress disorder (PTSD). Objectives were to review relevant parameters of trials, such as the patients recruited, the means of assessing PTSD at baseline, and the change in symptomatology in response to treatment, and to reach a consensus on the most appropriate parameters to use in future research. The bases for the discussion were the 1995 National Institute of Mental Health (NIMH) and the National Center for PTSD consensus on the assessment of PTSD, results of drug treatment trials, and information on the assessment scales used in PTSD research.

Prolonged exposure (PE) therapy has been found efficient in reducing posttraumatic stress disorder (PTSD) symptoms mostly among rape victims, but has not been explored in combat-related PTSD. Five patients with severe chronic PTSD, unresponsive to previous treatment (medication and supportive therapy) are described. Patients were evaluated with the PTSD Symptom Scale–Interview, and Beck Depression Inventory, before and after 10–15 sessions of PE therapy. All five patients showed marked improvement with PE, with a mean decrease of 48% in PTSD Symptom Scale–Interview score and 69% in Beck Depression Inventory score. Moreover, four patients maintained treatment gains or kept improving 6–18 months after the treatment. The results suggest that PE was effective in reducing combat-related chronic PTSD symptoms.

This case report illustrates the relationship between stress and obsessive-compulsive disorder (OCD) by describing an unusual case of OCD sequelae following a suicide attempt. The patient is a 29-year-old married woman who suffered a major depressive episode without OCD and tried to commit suicide by drinking household cleaner. Following the attempt, violent obsessive thoughts of harming herself and others emerged along with avoidance behavior. After exposure therapy, there was a decrease in her obsessive thoughts, less anxiety, and no avoidance behavior. This report highlights not only the existence of “posttraumatic obsession” but also the importance of accurate interpretation of suicidal preoccupation, leading to the diagnosis of OCD rather then suicidal ideation secondary to depression.