Perceived Change Processes in Dialectical Behaviour Therapy From the Perspective of Clients With a Diagnosis or Traits of Borderline Personality Disorder: A Systematic Literature Review.

Purpose: To synthesise qualitative research on individuals diagnosed with (or reportedly showing traits of) borderline pattern personality disorder who underwent dialectical behaviour therapy, aiming to comprehend their perceptions of change processes and the therapy's effects. Method: A comprehensive literature search was conducted across multiple online databases and grey literature sources. Papers were quality appraised using an adapted version of the Critical Appraisal Skills Programme tool. A metaethnographic approach was employed during the synthesis. Results: Eleven studies met criteria for inclusion in the review. The main themes identified through the synthesis process were the impact of DBT, the supportive structure and the 1:1 therapy component. Conclusions: The synthesis uncovered the importance of various processes within DBT that patients perceived as active ingredients for their change. Many of these processes aligned with proposed theoretical processes of change and quantitative research on DBT's effectiveness. [ABSTRACT FROM AUTHOR]