Ignite Creation Date:
2025-12-25 @ 1:35 AM
Ignite Modification Date:
2025-12-25 @ 11:49 PM
Study NCT ID:
NCT04623294
Status:
UNKNOWN
Last Update Posted:
2020-11-10
First Post:
2020-11-09
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Online Noninvasive Assessment of Human Brain Death and Deep Coma by Near-infrared Spectroscopy
Sponsor:
Chinese Academy of Medical Sciences
Organization:
Study Overview
Official Title:
Online Noninvasive Assessment of Human Brain Death and Deep Coma by Near-infrared Spectroscopy With Protocol at Varied Fraction of Inspired O2
Status:
UNKNOWN
Status Verified Date:
2020-11
Last Known Status:
NOT_YET_RECRUITING
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
This study aims to assess brain death and deep coma with the self-made near infrared spectroscopy (NIRS) instrument. The investigators used the noninvasive method to monitor the Δ\[HbO2\] (the concentration changes in oxy-hemoglobin) and Δ\[Hb\] (the concentration changes in deoxy-hemoglobin) in the region around the forehead of medically evaluated participating patients and healthy subjects. A multiple-phase protocol at varied fraction of inspired O2 were utilized during the assessment.
Detailed Description:
Brain death is an irreversible loss of all brain functions, while deep coma is a profound state of unconsciousness associated with depressed cerebral activity. Timely distinguishing the two states is crucial for saving patients. The noninvasive, sensitive, universally available, and timely ancillary method to assess brain death and deep coma has not been established. This study aims to explore a noninvasive and straightforward way in brain death and deep coma online assessment. The changes of hemodynamic parameters including oxyhemoglobin (HbO2) and deoxyhemoglobin (Hb) were detected by near infrared spectroscopy instrument attached on the forehead of participators. A multiple-phase protocol at varied fraction of inspired O2(FIO2) were utilized during the assessment. Then the investigators compared the multiple physiological parameters changes among different groups at different FIO2.
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: