An observational study in Monitoring of Depth of Anesthesia, sponsored by Ciusss de L'Est de l'Île de Montréal. Not yet recruiting. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-08-07.
Sponsored by Ciusss de L'Est de l'Île de Montréal · Observational
The goal of this observational study is to find out how changes in body position during surgery might affect brain monitoring results in patients who are under general anesthesia.The main question it aims to answer is:
- Does patient positioning have an impact on Bispectral Index (BIS) and Nociception Level (NOL) index monitoring (which are values of awareness in anesthesized patients).
Participants will undergo their surgery as planned, except for these extra features:
Participants will then have to answer a short questionnaire after surgery about their memories before and after the anesthesia.
Ciusss de L'Est de l'Île de Montréal is the lead sponsor of 90 studies on the registry; 32 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients from Maisonneuve-Rosemont Hospital undergoing elective surgery.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Variation in Bispectral Index (BIS)
Time frame: Perioperative period
Variation of Nociception Level (NOL) Index
Time frame: Perioperative period
Variation of the patient's cerebral saturation measured with cerebral oximetry
Time frame: Perioperative period
No study locations are listed for this record.
This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.
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Ciusss de L'Est de l'Île de Montréal