Effect of Pulse Oximeter Device on Measured Perfusion Index Values
- Conditions
- Perfusion Index
- Registration Number
- NCT06635018
- Lead Sponsor
- Czech Technical University in Prague
- Brief Summary
The aim of this study is to experimentally determine the effect of pulse oximeters from different manufacturers on measured perfusion index values in healthy subjects at rest and with and without motion artifacts.
- Detailed Description
Perfusion index (PI) is one of the many vital signs monitored to assess the clinical status of a patient. PI is determined from the pulsatile part of the plethysmographic curve, with typical values measured on the fingers ranging from 0.02% to 20%. Although PI is a relatively newly measured parameter, it has already found application in many areas of clinical medicine. It can be used as an indicator of the severity of health status in different groups of critically ill patients, e.g. in patients with sepsis, in patients after cardiac arrest, for early detection of critical heart defects, for indirect assessment of patient pain, as an indicator of fluid therapy and reactivity, or for assessment and evaluation of anaesthesia in the operating room. However, there is currently no standardised calculation of PI and different manufacturers use different algorithms for the calculation. The consequence is that absolute measured values cannot be compared between devices.
Recruitment & Eligibility
- Status
- NOT_YET_RECRUITING
- Sex
- All
- Target Recruitment
- 50
- Healthy Adult Volunteer
- Post-traumatic upper limb conditions affecting finger perfusion
- Injuries or diseases of the skin of the fingers
- Any acute phase of any disease
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Primary Outcome Measures
Name Time Method Comparison of Perfusion Index Values Measured by Pulse Oximeters From Different Manufacturers During Rest, Movement, and Circulatory Restriction 1 hour Perfusion index values will be measured and compared using pulse oximeters from different manufacturers under various conditions, including resting state, movement artifacts, and circulatory restriction. This evaluation will provide a direct comparison of the variability in perfusion index measurements across devices under each condition.
- Secondary Outcome Measures
Name Time Method