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Episodes of (Dis)Connected Consciousness in ICU Survivors

Episodes of (Dis)Connected Consciousness Among Patients Who Survived a Critical Illness

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07048951
Acronym
CONSCIOUS-ICU
Enrollment
200
Registered
2025-07-03
Start date
2025-04-01
Completion date
2027-04-30
Last updated
2025-07-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Consciousness, Critical Illness, ICU, Near Death Experience

Keywords

near-death experience, out-of-body experience

Brief summary

This single-center observational study aims to describe the incidence of episodes of connected consciousness and disconnected consciousness (including near-death experience (NDE) and out-of-body experiences) in patients who survived a prolonged stay of at least 7 days in the intensive care unit (ICU) and who had at least one episode of pharmacological or non-pharmacological coma. The investigators are also investigating the risk factors related to these episodes of consciousness. A follow-up at six months aims to explore the long-term psychological implications of these episodes.

Interventions

DIAGNOSTIC_TESTThe Near-Death Experience Content (NDE-C) scale

Questionnaire to detect occurence of NDE. A NDE is identified if score \> or = 27/80

OTHERThreat perception measure

7 items scale investigating the participant's psychological vulnerability during their stay at the ICU

OTHERInterview about the participant's memories of the ICU

Participants will be asked to describe any dream, hallucination, or any other unusual experience they can recall from their stay at the ICU. Additionally, the participants will be asked to describe any memory they have of the environment of the ICU, such as the appearance of the room, medical staff, family visiting, noises, etc.

Sponsors

Centre Hospitalier Universitaire de Liege
CollaboratorOTHER
University of Liege
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Adult patients who survived a ≥7 days stay in the intensive care unit * Experienced a pharmacological or non-pharmacological episode of loss of consciousness * French speaking

Exclusion criteria

* Refusal * Chronic disorder of consciousness * Confusion or delirium * Deafness * Blindness * Aphasia

Design outcomes

Primary

MeasureTime frameDescription
Detection of potential episodes of connected consciousnessWithin the week following discharge from the ICU (max 7 days after)Explicit recall of environmental/external stimuli in the ICU
Detection of potential episodes of disconnected consciousnessWithin the week following discharge from the ICU (max 7 days after)Near-death experience (using the Near-Death Experience Content scale, min-max: 0-80, with ≥27/80 indicating the presence of a NDE); dream

Secondary

MeasureTime frameDescription
Risk factorsWithin the week following discharge from the ICU (max 7 days after)(Neuro)physiological marker
Psychological vulnerability during the stay at the ICUWithin the week following discharge from the ICU (max 7 days after)Using the Threat Perception Measure, a scale that contains 7 items related to feelings and anxieties perceived by the patient, each scored from 1 to 4, ranging from 1 Not at all, 2 A little, 3 Moderately, and 4 Extremely, as well as a don 't remember category. Min-max: 7-28, with higher scores indicating a higher level of perceived threat
Psychological impact of the stay at the ICUAt a 6 month follow-up after discharge from the ICUAny patient who stayed at least 7 days at the ICU is invited to a 6 month follow-up during which they will be presented Hospital Anxiety and Depression Scale (HADS, min-max: 0-42, with higher scores indicating a worse outcome, i.e., more severe symptoms of anxiety or depression), to assess anxiety and depression as well as the Post-Traumatic Stress Assessment Questionnaire (IES-R, min-max: 0-88, with higher scores indicating a worse outcome, i.e., more severe post-traumatic stress symptoms). The investigators will be asking two additional questions to investigate a possible impact on the patient's beliefs. * Question 1: Since your stay in intensive care, have your beliefs/opinions changed regarding death?. * Question 2: Has your stay in intensive care modified your fear of health care institutions?

Countries

Belgium

Contacts

Primary ContactCharlotte Martial, PhD
cmartial@uliege.be+3243233612

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026