Hostname: page-component-74656f9884-skzmx Total loading time: 0 Render date: 2026-11-04T10:01:54.665Z Has data issue: false hasContentIssue false

A single case report of using Dummett’s systemic cognitive behavioural formulation to guide treatment of adolescent PTSD

Published online by Cambridge University Press:  27 December 2022

Bethany O'Brien-Venus*
Affiliation:
Department of Psychology, University of Bath, Bath BA2 7AY, UK
Cara Haines
Affiliation:
Oxford Health NHS Foundation Trust, Wiltshire, UK
*
*Corresponding author. Email: bethany.venus@bath.edu
Rights & Permissions [Opens in a new window]

Abstract

Trauma-focused CBT (TF-CBT) is recommended by NICE for adolescents with post-traumatic stress disorder (PTSD). Whilst caregiver involvement is recommended, no specific guidance on the nature of involvement is provided although it is important that involvement takes account of the nature of the trauma. This case report details how Dummett’s systemic CBT formulation was used to plan an intervention such that systemic sessions were included in TF-CBT treatment of an adolescent female with PTSD which arose following interpersonal trauma. Trauma symptoms, trauma cognitions and depressive symptoms were measured throughout, with trauma symptoms showing clinically significant change over the course of therapy. Clinical implications are considered regarding the applicability of systemic CBT formulation and the inclusion of systemic sessions within TF-CBT for adolescents whose traumas arose interpersonally.

Key learning aims

  1. (1) To be able to incorporate systemic factors into a formulation of the maintenance of PTSD for adolescents using Dummett’s systemic cognitive behavioural formulation.

  2. (2) To identify systemic interventions that may facilitate change in interactions between adolescents and parental figures and change in trauma appraisals.

Information

Type
Case Study
Copyright
© The Author(s), 2022. Published by Cambridge University Press on behalf of the British Association for Behavioural and Cognitive Psychotherapies
Figure 0

Figure 1. Timeline produced with Isla of key life events.

Figure 1

Figure 2. Dummett’s (2006) systemic CBT formulation incorporating Ehlers and Clark’s (2000) model of PTSD.

Figure 2

Table 1. Summary of the key TF-CBT techniques used in this study

Figure 3

Table 2. ‘Taking the thought to court’ cognitive restructuring worksheet, adapted from Psychology Tools, which the therapist subscribes to

Figure 4

Figure 3. Interactional vicious cycle showing general pattern which recurs in arguments between Isla and her mum, and the impact of this on reinforcing negative beliefs about herself and others.

Figure 5

Table 3. Summary of the key systemic CBT techniques used

Figure 6

Figure 4. Graph displaying the change in CRIES-8 total score by session number. The black horizontal line indicates the clinical cut-off score for the CRIES-8.

Figure 7

Figure 5. Graph displaying CPTCI-S total score by session number. The black horizontal line indicates the clinical cut-off score for the CPTCI-S.

Figure 8

Figure 6. Graph displaying RCADS depression subscale scores by session number. The black horizontal line indicates the clinical cut-off score for the RCADS Depression subscale.

Figure 9

Table 4. Isla and her mother’s scores on the SCORE-15

Figure 10

Table 5. Summary of scores related to problem severity, management within the family, and therapy helpfulness

Supplementary material: File

O'Brien-Venus and Haines supplementary material

O'Brien-Venus and Haines supplementary material

Download O'Brien-Venus and Haines supplementary material(File)
File 14 KB
Submit a response

Comments

No Comments have been published for this article.