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| ID | Type | Description | Link |
|---|---|---|---|
| 5K25HL153954-03 | U.S. NIH Grant/Contract | View source |
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| Name | Class |
|---|---|
| National Heart, Lung, and Blood Institute (NHLBI) | NIH |
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This is an observational study in patients who require clinical anesthesia. The main purpose of this study is to understand whether there are differences in the cerebral blood flow, and oxygen metabolism affected by different types of anesthesia. Subjects who require clinical anesthesia for a clinical MRI and for whom the use of anesthetics for the exam are in clinical equipoise are asked to join the study. All eligible subjects will be asked to provide informed consent before participating in the study.
This is an observational study in patients who require clinical anesthesia. The main purpose of this study is to understand whether there are differences in the cerebral blood flow, and oxygen metabolism affected by different types of anesthesia. Subjects who require clinical anesthesia for a clinical MRI and for whom the use of anesthetics for the exam are in clinical equipoise are asked to join the study. All eligible subjects will be asked to provide informed consent before participating in the study.
Treatment:
Those who meet eligibility criteria, and who undergo the informed consent, will have their MRI extended by up to 7.5 minutes for up to 5 times. Standard-of-care anesthesia safety, dose and monitoring will not be changed. During their MRI, the additional images acquired will teach us about cerebral blood flow and cerebral venous oxygenation. Participants will also have non-invasive monitoring of their hematocrit immediately following the exam.
Safety Assessment:
The experiment will occur in the standard-of-care clinical MRI environment. All patient safety and monitoring will remain in place. Throughout the induction, maintenance and recovery from anesthesia, all procedures will occur in the standard of care environment and will be overseen by trained clinical personnel.
Efficacy Assessment:
Structural, and/or cerebral blood flow and/or metabolism MRIs will be collected from all subjects.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Pediatric Patients | Children scheduled for clinical MR imaging. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| MR Imaging | Diagnostic Test | MR imaging pertaining to the patient and project (ICHOR 1) |
|
| Measure | Description | Time Frame |
|---|---|---|
| Change in cerebral blood flow (ml blood/100g/min) | Phase contrast (PC) acquisition via MRI will be used to assess any impact of anesthesia on cerebral blood flow. | Time points over which the change is assessed: change from (1) start of MRI, through (2) MRI completion, an average of 60 minutes. |
| Change in cerebral metabolic rate of oxygen (ml O2/100g/min) | T2 relaxation under spin tagging (TRUST) acquisition via MRI will be used to assess any impact of anesthesia on cerebral metabolic rate of oxygen. | Time points over which the change is assessed: change from (1) start of MRI, through (2) MRI completion, an average of 60 minutes. |
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Inclusion Criteria:
Exclusion Criteria:
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Neonates and young children
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Hannah E Wiseman, MPH | Contact | 323-361-3963 | hwiseman@chla.usc.edu | |
| Matthew T Borzage, PhD | Contact | 323-601-5757 | mborzage@chla.usc.edu |
| Name | Affiliation | Role |
|---|---|---|
| Matthew Borzage, PhD | Children's Hospital Los Angeles | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Children's Hospital Los Angeles | Recruiting | Los Angeles | California | 90027 | United States |
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| ID | Term |
|---|---|
| D000070642 | Brain Injuries, Traumatic |
| D020925 | Hypoxia-Ischemia, Brain |
| ID | Term |
|---|---|
| D001930 | Brain Injuries |
| D001927 | Brain Diseases |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |
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| ID | Term |
|---|---|
| D008279 | Magnetic Resonance Imaging |
| D003952 | Diagnostic Imaging |
| ID | Term |
|---|---|
| D014054 | Tomography |
| D019937 | Diagnostic Techniques and Procedures |
| D003933 | Diagnosis |
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| D006259 |
| Craniocerebral Trauma |
| D020196 | Trauma, Nervous System |
| D014947 | Wounds and Injuries |
| D002545 | Brain Ischemia |
| D002561 | Cerebrovascular Disorders |
| D002534 | Hypoxia, Brain |
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |
| D000860 | Hypoxia |
| D012818 | Signs and Symptoms, Respiratory |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |