Pilot study on optimizing pressure for standardized capillary refill time measurement.

ABSTRACT:

Purpose

Capillary Refill Time (CRT) measurement has gained increasing attention in the field of sepsis and septic shock. Recognizing pressure as a fundamental determinant in CRT measurement is crucial for establishing a standardized CRT measurement procedure. In this preliminary study, we elucidated the optimal pressing strength for CRT measurement by analyzing the CRTs measured under varying pressures.

Method

Seventeen healthy individuals were enlisted to undergo CRT tests on their fingertips at various pressure levels. The applied force was initiated at 0.5N and incrementally increased by 0.5N until it reached 10.5N. An integrated Photoplethysmography (PPG) device was employed to capture fluctuations in light intensity. The CRT was automatically derived from the PPG signal

SUBMITTER: Ma ZY 

PROVIDER: S-EPMC11336845 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature