Patients' reports on their delusional memories from the intensive care unit: A systematic review of qualitative studies.

To critically summarise the qualitative literature to understand patients' experiences of delusional memories during their Intensive Care Unit stay. A systematic review of qualitative studies with meta-synthesis and meta-summary. We searched MEDLINE (via PubMed), Cumulative Index to Nursing and Allied Health Literature (CINAHL), Scopus, and Web of Science to July 2022. All studies that provided qualitative insights into the subjective experience of adult patients with delusional memories in the Intensive Care Unit were selected. The Critical Assessment Skills Programme checklist was used for the quality assessment. Fourteen studies were included. The 33 codes that emerged from the inductive thematic analysis were grouped into three themes: 'The sense of danger and the terrifying aspect of death' (feeling in danger, surrounded by death, persecuted by people around, and feeling unsafe), 'The presence of someone or something nearby' (perceiving the loved ones, feeling overwhelmed by scary creatures, and being neglected by those around me), and 'The reality behind the world perceived by the senses' (travelling the world, stimulating the senses, feeling peaceful, and living in a fantasy world). The most frequent code in the studies was 'Be with a family member', with an intensity of 35.7%. The patient's experience described as delusional is considered a real event by the person experiencing it. Further research is needed to investigate the extent to which these experiences lead to poorer early and late outcomes for patients, and to test strategies to prevent this. A deeper understanding of the phenomenon may help healthcare professionals to recognise precursors, symptoms and consequences of delusional memories and intervene with appropriate help. One strategy would be to further humanise care and focus on family involvement and communication with patients to overcome the factual events that can potentially alter patients' quality of life.

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Déclaration de conflit d'intérêts

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.