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Change in brain perfusion during induction of general anesthesia: relationship between transcranial doppler, bispectral index and cerebral oximetry : a prospective observational study CERVO2

NCT ID NCT04288869

NEW Sponsor: Assistance Publique - Hôpitaux de Paris Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early This study
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 10, 2026 · Last updated Sep 10, 2026

Summary

Arterial hypotension during general anesthesia remains a factor of poor outcomes, increases the risk of myocardial infarction, acute kidney injury and 1-year mortality. Furthermore, arterial hypotension may also decrease cerebral perfusion contributing to worsen neurological outcome. It seems necessary to monitor cerebral perfusion during anesthesia and to define individual dynamic targets of blood pressure. The goal of this study is to evaluate cerebral perfusion change in adult patients with or without cardiovascular risk factors during a standardized propofol-remifentanil anesthesia induction. Cerebral perfusion will be evaluated and compared by simultaneous measurements of cerebral blood flow, cerebral oxygen saturation and neurological function with use of transcranial Doppler (TCD), Near infrared spectroscopy (NIRS) and the Bispectral index (BIS) monitoring, respectively. Those measurements will be also repeated during and after treatment of arterial hypotension episodes in both groups.

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Study facts

What this study's own registry entry says, in plain language.

Participants

68 people

The number who actually took part.

Started

Jan 2021

Finished

Oct 2022

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

The study involves major patients who benefit from intraoperative hemodynamic optimization with norepinephrine (as noradrenaline tartrate) for maintaining blood pressure under general anesthesia during an interventional neuroradiology procedure or orthopedic surgery.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Major patients (≥ 18 years old) * Eligible for an interventional radiology procedure or orthopedic surgery under general anesthesia. * Patients who expressed their non-opposition to participation in this research Exclusion Criteria: * Patients under the age of 18. * Patient opposed to participation in the protocol * Pregnant woman * Patient under judicial protection measure * Patient without affiliation to a social security scheme-

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Conditions

The condition(s) this trial relates to.

hypotensive disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Interventional radiology Orthopedic surgery

Contacts and locations

Locations

  • AP-HP, Lariboisière Hospital, Department of Anesthesiology and Intensive Care

    Paris, 75010, France

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Other studies related to the condition(s) this trial covers.