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Visual and auditory hallucinations following cardiac surgery

VAACS study: predictors and outcomes of visual and auditory hallucinations following coronary artery bypass grafting and valve replacement surgery – a prospective multicenter cohort

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN18368253
Enrollment
1600
Registered
2025-07-29
Start date
2022-09-20
Completion date
Unknown
Last updated
2025-09-08

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

Conditions

Postoperative neuropsychiatric complications, visual hallucinations, auditory hallucinations, cardiac surgery, cognitive dysfunction. Mental and Behavioural Disorders

Interventions

This is a prospective observational cohort study. Participants undergoing CABG or valve surgery were screened and enrolled postoperatively. Data collection included: * Daily assessment of hallucinatio

Sponsors

An-Najah National University
Lead Sponsor
Palestinian Clinical Research Center
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Adults aged 18 years or older 2. Scheduled for elective or semi-elective cardiac surgery (either isolated CABG or valvular surgery)

Exclusion criteria

Exclusion criteria: 1. Inability to provide informed consent or complete the questionnaire (e.g. language barrier or severe cognitive impairment) 2. Known history of major psychiatric or neurological disorders that could confound hallucination assessment (such as schizophrenia or dementia) 3. Parkinson’s disease 4. Blindness (precluding visual hallucinations assessment) 5. Active alcohol or substance abuse 6. Clinical diagnosis of delirium at the time of screening 7. Pre-existing chronic hallucinations or psychotic disorders 8. Emergency surgery cases 9. Patients on mechanical circulatory support, given their distinct risk profiles for neuropsychiatric complications

Design outcomes

Primary

MeasureTime frame
Occurrence of postoperative visual and auditory hallucinations measured using the QPE tool within 7 days of surgery.

Secondary

MeasureTime frame
Hallucination severity measured using the Questionnaire for Psychotic Experiences (QPE) severity scale within 7 days of surgery.

Countries

Palestine, State of

Contacts

Public ContactMohammad Alnees
S11743633@stu.najah.edu+970 0599240098

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026