Comparison of a peripheral perfusion assessment method using a pulse oximeter to the conventional capillary refill time visually assessed by a clinician.
A new technology, capillary refill index (CRI), to assess peripheral perfusion status quantitatively using pulse oximeter waveforms is being developed. The conventional capillary refill time (CRT) is widely used in clinical settings as a gold standard to assess peripheral perfusion. The objective of this study is to evaluate the capability of CRI to predict altered peripheral perfusion determined with the conventional CRT test. Predictive capability of CRI needs to be assessed to achieve a goal to provide clinicians with an alternative method to the conventional CRT.
Study Type
OBSERVATIONAL
Enrollment
60
a waveform analysis method using a pulse oximeter to assess peripheral perfusion
North Shore University Hospital
Manhasset, New York, United States
Predictive Capability of the Altered Peripheral Perfusion
The area under the curve (AUC) of the receiver operator characteristic (ROC) curve analysis on CRI values to predict probability of altered peripheral perfusion determined with the CRT test.
Time frame: < 30 min *right after enrollment
Correlation of Device CRI to Conventional (Visual) CRT
Spearman's correlation coefficient to assess the correlation between CRI and CRT values.
Time frame: < 30 min *right after enrollment
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