Psychological Outcomes following a nurse-led Preventative Psychological Intervention for critically ill patients (POPPI) :Protocol for a cluster-randomised clinical trial of a complex intervention

Alvin Richards-Belle, Paul R Mouncey, Dorothy Wade, Chris R Brewin, Lydia M Emerson, Richard Grieve, David A Harrison, Sheila Harvey, David Howell, Monty Mythen, Zia Sadique, Deborah Smyth, John Weinman, John Welch, Kathryn M Rowan, POPPI Trial Investigators

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Abstract

INTRODUCTION: Acute psychological stress, as well as unusual experiences including hallucinations and delusions, are common in critical care unit patients and have been linked to post-critical care psychological morbidity such as post-traumatic stress disorder (PTSD), depression and anxiety. Little high-quality research has been conducted to evaluate psychological interventions that could alleviate longer-term psychological morbidity in the critical care unit setting. Our research team developed and piloted a nurse-led psychological intervention, aimed at reducing patient-reported PTSD symptom severity and other adverse psychological outcomes at 6 months, for evaluation in the POPPI trial.

METHODS AND ANALYSIS: This is a multicentre, parallel group, cluster-randomised clinical trial with a staggered roll-out of the intervention. The trial is being carried out at 24 (12 intervention, 12 control) NHS adult, general, critical care units in the UK and is evaluating the clinical effectiveness and cost-effectiveness of a nurse-led preventative psychological intervention in reducing patient-reported PTSD symptom severity and other psychological morbidity at 6 months. All sites deliver usual care for 5 months (baseline period). Intervention group sites are then trained to carry out the POPPI intervention, and transition to delivering the intervention for the rest of the recruitment period. Control group sites deliver usual care for the duration of the recruitment period. The trial also includes a process evaluation conducted independently of the trial team.

ETHICS AND DISSEMINATION: This protocol was reviewed and approved by the National Research Ethics Service South Central - Oxford B Research Ethics Committee (reference: 15/SC/0287). The first patient was recruited in September 2015 and results will be disseminated in 2018. The results will be presented at national and international conferences and published in peer reviewed medical journals.

TRIAL REGISTRATION NUMBER: ISRCTN53448131; Pre-results.

Original languageEnglish
Pages (from-to)e020908
JournalBMJ Open
Volume8
Issue number2
DOIs
Publication statusPublished - 08 Feb 2018

Keywords

  • Journal Article

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    Richards-Belle, A., Mouncey, P. R., Wade, D., Brewin, C. R., Emerson, L. M., Grieve, R., Harrison, D. A., Harvey, S., Howell, D., Mythen, M., Sadique, Z., Smyth, D., Weinman, J., Welch, J., Rowan, K. M., & POPPI Trial Investigators (2018). Psychological Outcomes following a nurse-led Preventative Psychological Intervention for critically ill patients (POPPI) :Protocol for a cluster-randomised clinical trial of a complex intervention. BMJ Open, 8(2), e020908. https://doi.org/10.1136/bmjopen-2017-020908