CAPAPP: Smartphone-based capillary refill index assessment in healthy children

Jonathan Strutt; Girish Narayanswamy; Chunjong Park; Devesh Sarda; Sixuan Wu; Amy Kodet; Matthew Thompson; Shwetak Patel; Lauren Harvey; Alex Mariakakis; Rachel Hedstrom

doi:10.1115/dmd2023-6655

CAPAPP: Smartphone-based capillary refill index assessment in healthy children

Jonathan Strutt
, Girish Narayanswamy
, Chunjong Park
, Devesh Sarda
, Sixuan Wu
, Amy Kodet
, Matthew Thompson
, Shwetak Patel
, Lauren Harvey
, Alex Mariakakis
, Rachel Hedstrom

Pediatric Emergency Medicine

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

Capillary refill time is the time it takes for blanched skin tissue under pressure to return to its normal state when that pressure is released. The test is commonly performed on the fingertip by clinicians to assess for signs of septic, traumatic, or hypovolemic shock. Current methods of capillary refill time measurement are typically subjective, coarse-grained, and clinician dependent. A more standardized and objective measurement of capillary refill time has been shown to improve the diagnosis of pediatric dehydration but has typically required specialized equipment. We have developed a digital version of the capillary refill test utilizing only a smartphone to increase access to capillary refill assessment. Our aim is to determine the accuracy and precision of this smartphone-based measure in a population of healthy pediatric subjects.

Original language	English (US)
Title of host publication	Proceedings of the 2023 Design of Medical Devices Conference, DMD 2023
Publisher	American Society of Mechanical Engineers
ISBN (Electronic)	9780791886731
DOIs	https://doi.org/10.1115/dmd2023-6655
State	Published - 2023
Event	2023 Design of Medical Devices Conference, DMD 2023 - Minneapolis, United States Duration: Apr 17 2023 → Apr 21 2023

Publication series

Name	Proceedings of the 2023 Design of Medical Devices Conference, DMD 2023

Conference

Conference	2023 Design of Medical Devices Conference, DMD 2023
Country/Territory	United States
City	Minneapolis
Period	4/17/23 → 4/21/23

Bibliographical note

Publisher Copyright:
© 2023 by ASME.

Keywords

Application
Capillary refill index
Capillary refill time
Digital
Mobile
Peripheral perfusion
Smartphone

Publisher link

10.1115/dmd2023-6655

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Strutt, J., Narayanswamy, G., Park, C., Sarda, D., Wu, S., Kodet, A., Thompson, M., Patel, S., Harvey, L., Mariakakis, A., & Hedstrom, R. (2023). CAPAPP: Smartphone-based capillary refill index assessment in healthy children. In Proceedings of the 2023 Design of Medical Devices Conference, DMD 2023 Article v001t09a009 (Proceedings of the 2023 Design of Medical Devices Conference, DMD 2023). American Society of Mechanical Engineers. https://doi.org/10.1115/dmd2023-6655

CAPAPP: Smartphone-based capillary refill index assessment in healthy children. / Strutt, Jonathan; Narayanswamy, Girish; Park, Chunjong et al.
Proceedings of the 2023 Design of Medical Devices Conference, DMD 2023. American Society of Mechanical Engineers, 2023. v001t09a009 (Proceedings of the 2023 Design of Medical Devices Conference, DMD 2023).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Strutt, J, Narayanswamy, G, Park, C, Sarda, D, Wu, S, Kodet, A, Thompson, M, Patel, S, Harvey, L, Mariakakis, A & Hedstrom, R 2023, CAPAPP: Smartphone-based capillary refill index assessment in healthy children. in Proceedings of the 2023 Design of Medical Devices Conference, DMD 2023., v001t09a009, Proceedings of the 2023 Design of Medical Devices Conference, DMD 2023, American Society of Mechanical Engineers, 2023 Design of Medical Devices Conference, DMD 2023, Minneapolis, United States, 4/17/23. https://doi.org/10.1115/dmd2023-6655

Strutt J, Narayanswamy G, Park C, Sarda D, Wu S, Kodet A et al. CAPAPP: Smartphone-based capillary refill index assessment in healthy children. In Proceedings of the 2023 Design of Medical Devices Conference, DMD 2023. American Society of Mechanical Engineers. 2023. v001t09a009. (Proceedings of the 2023 Design of Medical Devices Conference, DMD 2023). doi: 10.1115/dmd2023-6655

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abstract = "Capillary refill time is the time it takes for blanched skin tissue under pressure to return to its normal state when that pressure is released. The test is commonly performed on the fingertip by clinicians to assess for signs of septic, traumatic, or hypovolemic shock. Current methods of capillary refill time measurement are typically subjective, coarse-grained, and clinician dependent. A more standardized and objective measurement of capillary refill time has been shown to improve the diagnosis of pediatric dehydration but has typically required specialized equipment. We have developed a digital version of the capillary refill test utilizing only a smartphone to increase access to capillary refill assessment. Our aim is to determine the accuracy and precision of this smartphone-based measure in a population of healthy pediatric subjects.",

keywords = "Application, Capillary refill index, Capillary refill time, Digital, Mobile, Peripheral perfusion, Smartphone",

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doi = "10.1115/dmd2023-6655",

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AU - Strutt, Jonathan

AU - Narayanswamy, Girish

AU - Park, Chunjong

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AU - Wu, Sixuan

AU - Kodet, Amy

AU - Thompson, Matthew

AU - Patel, Shwetak

AU - Harvey, Lauren

AU - Mariakakis, Alex

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AB - Capillary refill time is the time it takes for blanched skin tissue under pressure to return to its normal state when that pressure is released. The test is commonly performed on the fingertip by clinicians to assess for signs of septic, traumatic, or hypovolemic shock. Current methods of capillary refill time measurement are typically subjective, coarse-grained, and clinician dependent. A more standardized and objective measurement of capillary refill time has been shown to improve the diagnosis of pediatric dehydration but has typically required specialized equipment. We have developed a digital version of the capillary refill test utilizing only a smartphone to increase access to capillary refill assessment. Our aim is to determine the accuracy and precision of this smartphone-based measure in a population of healthy pediatric subjects.

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KW - Capillary refill time

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KW - Mobile

KW - Peripheral perfusion

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CAPAPP: Smartphone-based capillary refill index assessment in healthy children

Abstract

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