Online-delivered eye movement desensitization and reprocessing treatment for adults with post-traumatic stress disorder due to multiple traumas: a non-concurrent multiple baseline design.
Eur J PsychotraumatolAug 24, 2026 (epub)
Suzanne Kruisinga, Suzy J M A Matthijssen, Marij Zuidersma
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In 30 seconds
This randomized controlled trial assessed the effectiveness of online eye movement desensitization and reprocessing (EMDR) in 21 adults aged 18-65 with PTSD from multiple traumas. The study utilized a non-concurrent multiple baseline design. Results indicated that 15 participants showed significant symptom reduction, with a mean difference of 23.6 on the PTSD Checklist for DSM-5 (PCL-5) post-treatment.
Key findings
- 15 out of 21 participants showed effective symptom reduction following online EMDR treatment.
- Mean PCL-5 score decreased by 23.6 points post-treatment, with Cohen's d = 1.34.
- At follow-up, the mean PCL-5 score decreased by 27.2 points, with Cohen's d = 1.62.
- The treatment demonstrated clinically relevant symptom reduction over time.
Why it matters
The findings provide preliminary evidence supporting the use of online EMDR for treating PTSD, which may enhance accessibility to effective mental health interventions for patients unable to attend in-person therapy.