NCT04559269

Brief Summary

During general anesthesia, intraoperative hypotension (IOH) is associated with increased morbidity and mortality. Mean arterial pressure (MAP) \< 65mmHg is the most common definition of hypotension. In order to reduce IOH, a complex method using machine learning called hypotensive prediction index (HPI) was shown to be superior to changes in MAP (ΔMAP) to predict hypotension (MAP between 65 and 75 excluded). Linear extrapolation of MAP (LepMAP) is also very simple and could be a better approach than ΔMAP. The main objective of the present study was to investigate whether LepMAP could predict IOH during anesthesia 1, 2 or 5 minutes before.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
98

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Oct 2019

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

October 1, 2019

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

July 2, 2020

Completed
3 months until next milestone

First Posted

Study publicly available on registry

September 22, 2020

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2020

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2021

Completed
Last Updated

September 22, 2020

Status Verified

July 1, 2020

Enrollment Period

1.2 years

First QC Date

July 2, 2020

Last Update Submit

September 21, 2020

Conditions

Keywords

Maintenance Wakefulness Testsmicro-sleepsleepinesslatencyEEG

Outcome Measures

Primary Outcomes (1)

  • TThe primary endpoint was to determine if LepMAP was better than ΔMAP for the prediction of hypotensive event at 1, 2 and 5 minutes, defined as a mean arterial pressure of less than 65 mmHg

    the number of patients with MS during MWT as well as the mean number of MS per patient will be measured

    Only during perioperative period

Study Arms (1)

Cohort 1

Cohort of 98 patients suffering from sleep disorders hospitalized between September 2017 and January 2019 in the Sleep Medicine Center of the Croix Rousse Hospital (Lyon) for objective sleepiness evaluation with polysomnography and MWT.

Other: No intervention

Interventions

patients have benefited from maintenance wakefulness tests as part of their clinical evaluation

Cohort 1

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients suffering from sleep pathologies (apneas, narcolepsy, etc.) hospitalized for polysomnography and wakefulness tests, generally with a view to authorizing driving.

You may qualify if:

  • Patients suffering from sleep pathologies (apneas, narcolepsy, etc.) hospitalized for polysomnography and MWT, in order to evaluate their sleepiness (usually before they resume driving)
  • hospitalized in the Center for Sleep Medicine (Hôpital Lyon Croix Rousse) between September 2017 and January 2019

You may not qualify if:

  • patient with active encephalopathy or epilepsy whose EEG was abnormal
  • denial of study participation
  • availability of all the recordings (n=4 tests) of the MWT

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hôpital de la Croix Rousse / GHN

Lyon, 69004, France

RECRUITING

MeSH Terms

Conditions

Sleepiness

Condition Hierarchy (Ancestors)

Signs and SymptomsPathological Conditions, Signs and Symptoms

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 2, 2020

First Posted

September 22, 2020

Study Start

October 1, 2019

Primary Completion

December 1, 2020

Study Completion

December 1, 2021

Last Updated

September 22, 2020

Record last verified: 2020-07

Locations