Evaluation of a Radial Arterial Line's Effect on StO2 Monitoring
Measuring tissue oxygen saturation (St02) in the thenar eminence is emerging as a measurement of resuscitation. However, no study to our knowledge has evaluated the effects of an arterial line in the radial artery supplying this muscle bed on St02. This study will attempt to address the interaction between an arterial line and St02 monitoring in the thenar eminence. As most patients who require aggressive resuscitation will have an arterial line, it is important to understand what if any impact this will have on St02 in the same extremity.
|Study Design:||Observational Model: Cohort
Time Perspective: Prospective
|Official Title:||An Evaluation of a Radial Arterial Line's Effect on StO2 Monitoring Using the InSpectra® Tissue Spectrometer|
- Tissue Oxygen Saturation (StO2) Measurement on the Extremity With a Radial Arterial Line [ Time Frame: up to 15 minutes ] [ Designated as safety issue: No ]Using near-infrared spectroscopy, the external device recorded raw StO2 values every 3.5 seconds for approximately 5 minutes prior to and immediately following the insertion of a radial arterial catheter on the ipsilateral side. The raw values were then compiled into one-minute averages.
|Study Start Date:||January 2006|
|Study Completion Date:||March 2008|
|Primary Completion Date:||March 2008 (Final data collection date for primary outcome measure)|
Device: StO2 monitoring
placement of the StO2 device/ external noninvasive
Other Name: external near infrared spectroscopy
|United States, Texas|
|San Antonio, Texas, United States, 78229|
|Principal Investigator:||Lopez P Peter, M.D.||University of Texas Health Science Center San Antonio|