Post-traumatic stress disorder (PTSD) is a well-treated disorder. However, the presence of dissociative symptoms in addition to the usual PTSD symptoms are known to reduce psychotherapeutic intervention. Therefore, the aim of the study is to propose an adjusted Cognitive Behavior Therapy (CBT) program for dissociative subtype PTSD (d-PTSD) through a case study.

We proposed consultations for a 56 years ‘old woman suffering from d-PTSD after discovering the dead body of her daughter.

We used clinical interviews, weekly behavioral assessment and self-report questionnaires: PCL-5, DES, DERS, MBS and ERBS to measure the evolution of the symptoms after the therapy.

We proposed pre-exposure treatment composed of psychoeducation, emotion identification and regulation training, cognitive modification training, dissociation management training and meta-dissociative and meta-emotional restructuring. Then, we proposed an exposure therapy and pursued the training skills during the second part of the therapy.

We observed significant improvement after the therapy. We found reduction of dissociation during the first part of the therapy while intrusions remained constant. We observed a reduction of intrusive symptoms during the second part of the therapy.

Patients suffering from d-PTSD may benefit from adjusted CBT. The use of emotion regulation and dissociation management training should be develop before undertaking exposure therapy.