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Virtual Reality-based Sensory Stimulation for Delirium Prevention in Intensive Care Units

3 september 2026 uppdaterad av: Liang Surui, Chinese University of Hong Kong

Virtual Reality-based Sensory Stimulation for Delirium Prevention in Intensive Care Units: A Randomized Controlled Trial

The goal of this clinical trial is to evaluate whether virtual reality (VR)-based sensory stimulation can help prevent delirium in adult intensive care unit (ICU) patients, compared with an active control condition delivering the same nature-based audiovisual content via a tablet. The main questions it aims to answer are:

  1. Does VR-based sensory stimulation delay the time to the first delirium event during ICU stay?
  2. Does VR-based sensory stimulation reduce delirium incidence, duration, and severity?
  3. What are the effects of the intervention on ICU length of stay, duration of mechanical ventilation, cognitive function at 3 months after ICU discharge, and health-related quality of life? Researchers will compare immersive VR-based sensory stimulation with a non-immersive tablet-based active control to assess the added value of immersion beyond the effects of sensory content alone.

Participants will:

  1. Receive either immersive VR-based sensory stimulation or tablet-based sensory stimulation
  2. Receive one 20-minute session per day for up to 3 days during ICU stay Undergo twice-daily delirium assessments during ICU stay Complete follow-up assessments of cognitive function and health-related quality of life at 3 months after ICU discharge

Studieöversikt

Status

Rekrytering

Betingelser

Intervention / Behandling

Detaljerad beskrivning

Delirium is a common acute neurocognitive disorder in critically ill patients and is associated with poor short- and long-term outcomes, including prolonged ICU stay, extended mechanical ventilation, persistent cognitive impairment, and reduced quality of life after discharge. Environmental factors in the ICU, particularly sensory deprivation and excessive noise and light disturbance, are recognized as modifiable contributors to delirium risk.

Conventional sensory stimulation has shown potential to delay delirium onset and reduce delirium severity in ICU patients. However, implementation in routine ICU practice is challenging because intervention delivery may be disrupted by the complex ICU environment and may vary across clinical staff and settings.

This study evaluates a virtual reality (VR)-based sensory stimulation intervention designed to provide immersive visual and auditory input while reducing interference from the ICU environment. The intervention uses a head-mounted display and headphones to deliver standardized nature-based content. An active control condition was selected to receive the same content through a tablet, allowing comparison of immersive versus non-immersive delivery while controlling for the sensory content itself.

This study is a pilot randomized controlled trial conducted in adult ICU patients. Participants are randomly assigned in a 1:1 ratio to either the VR intervention group or the active control group. Both groups receive one 20-minute session daily for up to 3 days during ICU stay. Delirium is assessed twice daily during ICU stay, and participants are followed at 3 months after ICU discharge for cognitive and quality-of-life outcomes. The study is intended to generate preliminary estimates of intervention effects and to inform the design of a future definitive trial.

Studietyp

Interventionell

Inskrivning (Beräknad)

300

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Kina
    • Guangdong
      • Shenzhen, Guangdong, Kina, 518133
        • Rekrytering
        • Southern Medical University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen People's Hospital
        • Kontakt:

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Beskrivning

Inclusion Criteria:

  • Age 18 years or older
  • Admitted to the ICU
  • Undergoing or expected to require mechanical ventilation
  • Expected ICU stay of at least 48 hours
  • Awake or lightly sedated, defined as a Richmond Agitation-Sedation Scale - (RASS) score between -1 and +1
  • Able to understand and follow instructions
  • Provided informed consent [or surrogate consent, if applicable]

Exclusion Criteria:

  • Pre-existing cognitive impairment or dementia
  • Acute psychiatric illness at admission
  • Delirium at enrollment as assessed by CAM-ICU
  • Terminal-stage cancer
  • APACHE II score > 20
  • Severe uncorrectable hearing or visual impairment
  • Traumatic brain injury or intracranial drainage tubes that make use of the VR headset impractical

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Förebyggande
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Enda

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: immersive VR group
Participants received immersive VR-based sensory stimulation delivered through a head-mounted display with over-ear headphones. The intervention consisted of nature-based audiovisual content delivered at the bedside by trained ICU nurses for 20 minutes once daily for up to 3 days.
Enhet: immersive VR group
Participants received immersive VR-based sensory stimulation delivered through a head-mounted display with over-ear headphones. The intervention consisted of nature-based audiovisual content delivered at the bedside by trained ICU nurses for 20 minutes once daily for up to 3 days.
Aktiv komparator: active control group
Participants received the same nature-based audiovisual content delivered through a tablet-based non-immersive format. Sessions were delivered at the bedside by trained ICU nurses for 20 minutes once daily for up to 3 days.
Beteende: Active control group
Participants received the same nature-based audiovisual content through a tablet in a non-immersive format for 20 minutes once daily for up to 3 days during ICU stay.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Time to First Delirium Event During ICU Stay
Tidsram: Every day, from ICU admission to ICU discharge, assessed up to 28 days
Time from study enrollment to the first episode of delirium detected by the Confusion Assessment Method for the ICU (CAM-ICU).
Every day, from ICU admission to ICU discharge, assessed up to 28 days

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Delirium Incidence
Tidsram: Every day, from ICU admission to ICU discharge, assessed up to 28 days
Proportion of participants who developed delirium during ICU stay as assessed by CAM-ICU.
Every day, from ICU admission to ICU discharge, assessed up to 28 days
Delirium Duration
Tidsram: Every day, from ICU admission to ICU discharge, assessed up to 28 days
Total number of days during which delirium was present during ICU stay.
Every day, from ICU admission to ICU discharge, assessed up to 28 days
ICU Length of Stay
Tidsram: From date of ICU admission until the date of ICU discharge, assessed up to 28 days
Total number of days from ICU admission to ICU discharge.
From date of ICU admission until the date of ICU discharge, assessed up to 28 days
Duration of Mechanical Ventilation
Tidsram: From date of randomization until the date of first successful liberation from mechanical ventilation or date of in-hospital death, whichever came first, assessed up to 28 days
Total duration of mechanical ventilation during ICU stay.
From date of randomization until the date of first successful liberation from mechanical ventilation or date of in-hospital death, whichever came first, assessed up to 28 days
Cognitive Function at 3 Months
Tidsram: 3 months after ICU discharge
Cognitive function assessed by the telephone-based Montreal Cognitive Assessment (t-MoCA).
3 months after ICU discharge
Health-Related Quality of Life at 3 Months
Tidsram: 3 months after ICU discharge
Health-related quality of life assessed by the EuroQol Five Dimensions Questionnaire (EQ-5D).
3 months after ICU discharge

Samarbetspartners och utredare

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Sponsor

Chinese University of Hong Kong

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

1 januari 2026

Primärt slutförande (Beräknad)

31 december 2029

Avslutad studie (Beräknad)

31 december 2029

Studieregistreringsdatum

Först inskickad

14 augusti 2026

Först inskickad som uppfyllde QC-kriterierna

3 september 2026

Första postat (Faktisk)

8 september 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

8 september 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

3 september 2026

Senast verifierad

1 augusti 2026

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • NYSZYYEC20230074R003

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