Evaluation of PICU Diaries and Their Impact on Parental PTSD Symptoms: A Pilot Randomized Controlled Trial on Feasibility and Psychological Effects
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By
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Franziska Perdereau
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Felix Neunhoeffer
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Maria Schweizer
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Katharina Maier
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Ute Wagner
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Johannes Nordmeyer
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Juliane Engel
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July 21, 2026
Objective:
To evaluate the feasibility of a pilot randomized controlled trial (RCT) of PICU diaries and their impact on parental PTSD symptoms.
Approach:
- Study Design: Pilot RCT conducted in a university hospital's PICU, with families randomized to an ICU diary intervention group or control group.
- Participants: 149 eligible families were approached, with 104 consenting to participate, resulting in a final sample of 150 parents.
- Data Collection: Parents completed questionnaires at admission, PICU discharge, and six months post-discharge, assessing PTSD symptoms and resilience.
Key Findings:
- Dropout rate until PICU discharge was 4.7%; retention from discharge to 6-month follow-up was 95.5%.
- 12.7% of parents screened positive for suspected PTSD after 6 months.
- Prevalence of suspected PTSD was 14.5% in the intervention group and 11.1% in the control group.
- PTSD rates were higher in mothers (18.5%) compared to fathers (5.8%).
- Parents with suspected PTSD exhibited lower resilience.
Interpretation:
The pilot study indicates that conducting an RCT of ICU diaries in a PICU setting is feasible, with effective recruitment and retention.
Limitations:
- The exploratory nature of findings limits generalizability.
- The small sample size may affect the robustness of PTSD prevalence estimates.
- There may be potential biases in self-reported measures of PTSD and resilience.
Conclusion:
The study provides preliminary insights for future trials on the impact of PICU diaries on parental PTSD symptoms.