Should We Treat Trauma in Personality Disorder Even without a PTSD Diagnosis?

Why It Matters

These findings challenge the prevailing practice of reserving trauma‑focused interventions for formal PTSD diagnoses, indicating that EMDR can improve outcomes for a broader personality‑disorder population and may reduce chronic dysregulation. Incorporating EMDR could enhance existing treatment packages and address the high prevalence of abuse histories in this group.

Key Takeaways

• EMDR reduced PTSD symptoms in personality‑disorder patients, with large effect sizes.
• 65.5% of EMDR participants no longer met PTSD criteria after treatment.
• Patients without PTSD also showed moderate‑to‑large symptom reductions (d = 0.77).
• Study used wait‑list control; active comparator trials are still needed.

Pulse Analysis

Trauma exposure is a near‑universal feature among individuals with personality disorders, with recent surveys reporting up to 73 % experiencing emotional abuse and over 80 % reporting neglect. Yet clinicians often sideline trauma‑focused modalities because PTSD diagnoses are absent or masked by complex symptom presentations. This diagnostic blind spot leaves a substantial source of emotional dysregulation untreated, prompting researchers to explore whether therapies proven for PTSD might benefit a wider clinical spectrum.

Eye‑movement desensitisation and reprocessing, long‑established for PTSD, was put to the test in a single‑blind, multicentre RCT involving 159 Dutch outpatients with personality disorders. Participants received ten 90‑minute EMDR sessions over five weeks, and outcomes were tracked with the Clinician‑Administered PTSD Scale. The EMDR arm showed robust symptom declines, with Cohen’s d reaching 1.26 among those meeting PTSD criteria and 0.77 among those without a formal diagnosis. By three‑month follow‑up, 73 % of EMDR recipients no longer satisfied PTSD criteria, underscoring the therapy’s durability and its relevance beyond traditional diagnostic boundaries.

For practitioners, the trial signals a shift toward integrating trauma‑focused work into personality‑disorder treatment plans, especially given the high burden of early‑life adversity in this cohort. However, the reliance on a wait‑list control limits conclusions about EMDR’s comparative advantage over other evidence‑based approaches such as dialectical behaviour therapy or schema therapy. Future research should employ active comparators, examine broader functional outcomes, and assess long‑term maintenance. Until then, clinicians may consider EMDR as an adjunctive tool to address lingering trauma‑related distress that fuels emotional instability and relational turmoil.