Cognitive-Behavioral Therapy for a 9-Year-Old Girl With Disruptive Mood Dysregulation Disorder

Disruptive mood dysregulation disorder (DMDD) is a relatively new diagnosis in the field of childhood onset disorders. Characterized by both behavior and mood disruption, DMDD is a purportedly unique clinical presentation with few relevant treatment studies to date. The current case study presents the application of cognitive-behavioral therapy (CBT) for anger and aggression in a 9-year-old girl with DMDD, co-occurring attention deficit hyperactivity disorder (ADHD), and a history of unspecified anxiety disorder. At the time of intake evaluation, she demonstrated three to four temper outbursts and two to three episodes of aggressive behavior per week, in addition to prolonged displays of non-episodic irritability lasting hours or days at a time. A total of 12 CBT sessions were conducted over 12 weeks and 5 follow-up booster sessions were completed over a subsequent 3-month period. Irritability-related material was specially designed to target the DMDD clinical presentation. Post-treatment and 3-month follow-up assessments, including independent evaluation, demonstrated significant decreases in the target symptoms of anger, aggression, and irritability. Although the complexities of diagnosing and treating DMDD warrant extensive research inquiry, the current case study suggests CBT for anger and aggression as a viable treatment for affected youth.