Effect of Clinical Hypnosis in Preoperative Anxiety Among Patients Undergoing an Abdominal Surgery.
Hypnoanxiety
1 other identifier
interventional
48
1 country
3
Brief Summary
This Multicenter randomized controlled trial evaluates clinical hypnosis efficacy for reducing perioperative anxiety and postoperative pain in abdominal surgery patients across 3 Moroccan centers (n=48-68). Intervention arm receives 15-20 min level 2 hypnosis session preoperatively; control receives standard psychological preparation. Primary outcome: VAS-anxiety post-intervention. Secondary: postoperative EVA-pain, analgesic consumption, length of stay. Study Design Prospective, multicenter, parallel-group RCT (1:1 allocation, stratified by center/sex). Inclusion: consenting ASA I-II adults for abdominal surgery. Primary endpoint powered for 10mm EVA reduction (80% power, α=0.05). Registration supports PhD thesis at ISSS/Université Hassan 1er Settat.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Dec 2025
Shorter than P25 for not_applicable
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
December 22, 2025
CompletedFirst Submitted
Initial submission to the registry
January 2, 2026
CompletedFirst Posted
Study publicly available on registry
January 27, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 20, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
April 20, 2026
CompletedJanuary 27, 2026
January 1, 2026
3 months
January 2, 2026
January 22, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Preoperative anxiety
Perioperative Anxiety (Primary Outcome) is measured using the Visual Analog Scale for Anxiety (EVA-Anxiété, 0-100 mm). Primary Outcome Measure: preoperative anxiety level Assessment Tool: 100-mm Visual Analog Scale (VAS-Anxiety): 0 mm = No anxiety ("Je ne suis pas du tout anxieux") 100 mm = Worst possible anxiety ("Anxiété maximale imaginable") Timepoints: (post-intervention, \~10 min later). Expected hypnosis effect: ≥10 mm reduction vs. control. Protocol Specifications Patient marking: Single horizontal 100-mm line; mark position indicates intensity Scoring: Distance (mm) from "No anxiety" (0) to mark, precise to 1 mm
1 hour Before surgery
Secondary Outcomes (3)
Postoperative pain
6 and 24 hours postoperatively
medication consumption
Perioperative
length of stay
Perioperative
Study Arms (2)
Fisrt arm: patients having a session of hypnosis prior to surgery
EXPERIMENTALPatients randomized to the intervention arm undergo a single 15-20 minute clinical hypnosis session preoperatively for anxiety reduction, achieving level 2 hypnotic trance (somnambulism)
Arm 2 : patients will be treated as usual with standard conditions
NO INTERVENTIONPatients in this group will receive standard usual care without any hypnotic intervention, only with routine psychological preparation.
Interventions
Patients randomized to the intervention arm receive a single 15-20 minute individual clinical hypnosis session 30-60 minutes preoperatively. The standardized protocol includes: * Induction phase (3-5 min): Eye fixation, progressive relaxation breathing * Deepening phase (5 min): Level 2 somnambulistic trance achievement * Therapeutic suggestions (7-10 min): Anxiety reduction imagery, surgical calm visualization * Emergence phase (2-3 min): Safe awakening to alert consciousness Delivered by certified hypnotherapist using validated script for preoperative anxiety in abdominal surgery patients." Key Elements Required Timing: Preop holding area, 30-60 min before incision Provider: Trained clinician (specify certification) Dose: Single 15-20 min session Target: Level 2 hypnosis (somnambulism) Outcome link: EVA anxiety scale pre/post This matches your 3-center RCT design (\~16 patients/center, stratified randomization) and distinguishes from control arm (standard psychological preparation
Eligibility Criteria
You may qualify if:
- Consenting patients undergoing abdominal surgery
- ASA I-II physical status
- Able to understand and respond to instructions
- No major psychological disorders
You may not qualify if:
- Non-consenting patients
- Prior experience with hypnosis
- History of mental illness
- Psychoactive substance consumption
- Cognitive disorders
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
Kenitra, Rabat Sale Kenitra region, Morocco
Kenitra, Province, 14000, Morocco
Settat, Casablanca settat region , Morocco
Settat, Province, 26000, Morocco
Youssoufia, Marrakech-Safi Morocco
Youssoufia, Province, 46300, Morocco
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
NAOUFAL HIMMOUCHE HIMMOUCHE, Professor
Laboratory of health sciences and technlmogies, Higher Institute of Health sciences, Hassan Fisrt University, Settat Morocco
- STUDY DIRECTOR
YASSINE HAFIANI, Professor
Pedagogical Unit of Anesthesia and Intensive Care, Rabat Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Masking Details
- This study did not use any kind of masking or blinding,
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal investigator
Study Record Dates
First Submitted
January 2, 2026
First Posted
January 27, 2026
Study Start
December 22, 2025
Primary Completion
March 20, 2026
Study Completion
April 20, 2026
Last Updated
January 27, 2026
Record last verified: 2026-01
Data Sharing
- IPD Sharing
- Will not share
Data sharing not planned. Individual patient data will not be shared due to:" Small sample size (n=60 across 3 centers) creates high re-identification risk in Morocco's healthcare context Patient consent forms obtained pre-NIH Policy 2.0 did not include data sharing provisions Doctoral thesis protocol approved by CERB Mohammed V Rabat without data sharing plan Local data protection regulations (Loi 28-13) limit identifiable health data transfer Resource constraints prevent data de-identification and controlled access infrastructure Summary results, statistical analysis plan, and blinded protocol available upon request to corresponding author post-publication.