Diagnosis-specific CBT as a stepping stone to transdiagnostic CBT in a complex case

The use of transdiagnostic cognitive behavioural therapy for a patient with multi-morbidity: a case study

Multi-morbidity, having more than two diagnosed health conditions, is becoming increasingly common within healthcare services. Approximately one third of these patients are likely to have a mental health condition. Those with multi-morbidity with physical and mental health conditions have poorer outcomes in terms of their health, increased mortality rates, and higher usage of healthcare services.

This paper presents a case of a patient with multi-morbidity, with associated mental health conditions of anxiety and depression. She was seen as part of an integrated service which provides psychological support at home alongside the nursing team. The intervention used was based on transdiagnostic cognitive behavioural therapy (tCBT), provided over nine initial sessions and two additional booster sessions. Self-report measures were completed at intervals throughout the intervention and at follow-up. Improvements on the depression and anxiety measures were seen over the initial nine sessions, followed by a relapse at the 3-month follow-up. This was the result of a deterioration in physical health which led to a deterioration in mental health. The booster sessions mitigated further deterioration in mental health, despite the physical health worsening during this time.

This case suggests that tCBT can be helpful in reducing anxiety and depression in people with multi-morbidity. However, additional booster sessions may be required as further physical deterioration can re-trigger core beliefs and result in further mental health problems.

Key learning aims

(1)

Treating complex depression with cognitive behavioural therapy

Cognitive behavioural therapy (CBT) for major depression is an effective treatment, but outcomes for complex cases, with co-occurring biological, psychological and social factors, are variable. Complexity factors can cause treatment to become diffuse, disorganized and over-complicated. At Step 3, disorder-specific protocols should be provided with therapy kept as simple as possible and delivered responsively, e.g. barriers to treatment should be tackled, ensure the client is well-prepared and seek to form a strong therapeutic alliance. At Step 4, if disorder-specific protocols have been ineffective, the priority is to formulate how complexity factors are interacting with the client's depression. An individualized formulation is used to carefully target these interactions. The treatment is still evidence-based and simple at the point of delivery, but there is greater emphasis on case-level interactions that are unique to each individual. Case examples are used to illustrate both approaches.