NCT03194581

Brief Summary

This study will evaluate the impact of repeated normoxic challenges on cerebral oxygenation as a measure of the effect of blood loss on DO2 during surgical procedures.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
10

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Oct 2017

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 12, 2017

Completed
9 days until next milestone

First Posted

Study publicly available on registry

June 21, 2017

Completed
3 months until next milestone

Study Start

First participant enrolled

October 1, 2017

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2018

Completed
Last Updated

March 22, 2022

Status Verified

March 1, 2022

Enrollment Period

12 months

First QC Date

June 12, 2017

Last Update Submit

March 19, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in cerebral regional oxygen saturation

    Before and 3 minutes after normoxic challenges

Interventions

Evaluate cerebral oxygenation using normoxic challenges

Eligibility Criteria

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

Patients submitted to surgery with high risk of blood loss

You may qualify if:

  • Elective surgery
  • High risk of intraoperative blood loss
  • General anaesthesia

You may not qualify if:

  • Respiratory insufficiency
  • Ischemic heart disease
  • Stroke
  • ASA classification \> 3
  • Laparoscopic surgery

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Centro Hospitalar Tâmega e Sousa

Penafiel, Porto District, Portugal

Location

MeSH Terms

Conditions

Hemorrhage

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD

Study Record Dates

First Submitted

June 12, 2017

First Posted

June 21, 2017

Study Start

October 1, 2017

Primary Completion

September 30, 2018

Study Completion

September 30, 2018

Last Updated

March 22, 2022

Record last verified: 2022-03

Locations