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Continuous Assessment of Brain Blood Perfusion in Subarachnoid Hemorrhage Patients Using Near-Infrared Spectroscopy (NIRS)
Sponsor: University of Alabama at Birmingham
Summary
The goal of this observational study is to continuously assess cerebral autoregulation in patients with subarachnoid hemorrhage (SAH) using cerebral oximetry index (COx) and hemoglobin volume reactivity index (HVx). The main question it aims to answer is: Whether optimal perfusion pressure is dynamic and changes with time in patients with SAH, and that autoregulation is disrupted in patients during the course of SAH, contributing to delayed cerebral ischemia (DCI).
Official title: Continuous Assessment of Cerebral Autoregulation in Subarachnoid Hemorrhage (SAH) Patients Using Cerebral Oximetry Index and Hemoglobin Volume Reactivity Index
Key Details
Gender
All
Age Range
18 Years - 89 Years
Study Type
OBSERVATIONAL
Enrollment
120
Start Date
2026-07-01
Completion Date
2028-12
Last Updated
2026-03-20
Healthy Volunteers
No
Conditions
Interventions
- Non-Invasive Near-infrared Spectroscopy (NIRS) device (HEM1 with Foresight Elite Sensor)
Near-Infrared Spectroscopy (NIRS) monitors, provided by Edwards Lifesciences, is a monitoring technique. It will be connected to consented patients, automatically capturing brain oxygen as waveform output, and stored in Sickbay system. The NIRS is a non-invasive monitoring method, in which adhesive pads will be applied to forehead. 4 hours continuous monitoring will be recorded on day 1 after SAH (or on presence to NICU), then every three days from day 3 to day 14 (within the DCI window), to 1 to 2 recordings from day 15 to day 21.
Locations (1)
The University of Alabama at Birmingham
Birmingham, Alabama, United States