Ziyu Ma
ABSTRACT
Visually, the state of peripheral circulation in the body can be seen in the prolonged capillary refill time (CRT) when there are peripheral circulation disorders. Various forms of shock, organ failure, frostbite, and vasculitis are associated with prolonged capillary refill time. Given that this index is currently measured mainly by clinicians with the naked eye, it is lack of consensus on the measurement method, resulting extremely large measurement errors. This limits the application in clinical practice controversial. An examination of CRT's clinical utilization, its emotional components, and novel approaches to gauging CRT that could potentially facilitate more precise clinical tests for monitoring the condition of human peripheral circulation is presented in the review.In addition, our laboratory provides a new method for measuring CRT - a fully automatic capillary refill time measurement instrument based on PID pressure control, which introduces optical sensors instead of human eyes to record the change of light intensity in the subject area and can quantify and control the pressure by PID system, which reduces the influence of human factors on the measurement to a certain extent. This technology introduces an optical sensor instead of the human eye to record the light intensity changes in the subject area and can quantify and control the pressure through a PID system, which reduces the influence of human factors on the measurement results and improves the accuracy of the measurement.
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Index Terms
- Can Capillary Refill Time (CRT) measurement be a reliable clinical test?
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