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. 2019 Jan 8;23(1):4.
doi: 10.1186/s13054-018-2295-3.

Optimal pressing strength and time for capillary refilling time

Rui Kawaguchi  1 , Taka-Aki Nakada  2 , Taku Oshima  1 , Masayoshi Shinozaki  3 , Toshiya Nakaguchi  3 , Hideaki Haneishi  3 , Shigeto Oda  1
Affiliations

Optimal pressing strength and time for capillary refilling time

Rui Kawaguchi et al. Crit Care. .
No abstract available

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Conflict of interest statement

Ethics approval and consent to participate

The study participants were informed of the experiment and agreements were obtained via consent form before the measurements. All procedures in this study were approved by the Ethical Review Board of the Chiba University Graduate School of Medicine.

Consent for publication

Written informed consent for the publication was obtained.

Competing interests

The authors declare that they have no competing interests. Chiba University has filed a provisional patent application covering aspects of this manuscript. TN, TN, HH, and SO are listed as inventors.

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Figures

Fig. 1
Fig. 1
Capillary refilling time (CRT). CRT was measured in 31 age- and sex-matched healthy adults under the conditions with pressing strength 1, 3, 5, and 7 N, and pressing time 1, 2, 3, 4, 5, and 6 s in technical quintuplicate. Error bars indicate standard errors
Fig. 2
Fig. 2
Analysis on pressing time. a A schema of curve plot of the readings by the color sensor. The value sensing by color sensor rapidly changes in the initial part of the pressing nail bed (rapid phase) until the inflection point and then the slope of color change become slow (slow phase). b Histogram of inflection times (n = 744 (31 subjects × 24 conditions)). Gray lines indicate 5% and 95% lines. The red line indicates 50% time line. CRT capillary refilling time
See this image and copyright information in PMC

Comment in

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