Single session therapy is a specific form of therapy conducted by professionals who seek to use their existing skill sets and knowledge base to address clients’ presenting concerns, within one session. The session takes place with the understanding that the session might be the only one. Such single session services are currently expanding in a number of high income countries. This paper calls attention to this therapy for potential adaptation to acute emergency settings, in low and middle income countries, where offering one session may be the only option.

Background
In patients with co-morbid obsessive–compulsive disorder (OCD) and posttraumatic stress disorder (PTSD), repetitive behavior patterns, rituals, and compulsions may ward off anxiety and often function as a coping strategy to control reminders of traumatic events. Therefore, addressing the traumatic event may be crucial for successful treatment of these symptoms.
Objective
In this case report, we describe a patient with comorbid OCD and PTSD who underwent pharmacotherapy and psychotherapy.
Methods

In 2007, a leading article was published by Stevan Hobfoll and a team of international experts. The authors synthesized available scientific evidence and distinguished five essential principles of psychosocial care to people confronted with disaster, tragedy, and loss. Care givers should promote: (1) a sense of safety, (2) calming, (3) self- and community efficacy, (4) social connectedness, and (5) hope. After their publication, the ‘‘essential principles’’ influenced the thoughts of policy makers, care providers, and scholars from all over the world.

Abstract.
Background
Posttraumatic stress disorder (PTSD) and major depressive disorder (MDD) frequently co-occur after traumatic experiences and share neurocognitive disturbances in verbal memory and executive functioning. However, few attempts have been made to systematically assess the role of a comorbid MDD diagnosis in neuropsychological studies in PTSD.
Objective