Abstract
Indwelling arterial lines, the clinical gold standard for continuous blood pressure (BP) monitoring in the pediatric intensive care unit (PICU), have significant drawbacks due to their invasive nature, ischemic risk, and impediment to natural body movement. A noninvasive, wireless, and accurate alternative would greatly improve the quality of patient care. Recently introduced classes of wireless, skin-interfaced devices offer capabilities in continuous, precise monitoring of physiologic waveforms and vital signs in pediatric and neonatal patients, but have not yet been employed for continuous tracking of systolic and diastolic BP—critical for guiding clinical decision-making in the PICU. The results presented here focus on materials and mechanics that optimize the system-level properties of these devices to enhance their reliable use in this context, achieving full compatibility with the range of body sizes, skin types, and sterilization schemes typically encountered in the PICU. Systematic analysis of the data from these devices on 23 pediatric patients, yields derived, noninvasive BP values that can be quantitatively validated against direct recordings from arterial lines. The results from this diverse cohort, including those under pharmacological protocols, suggest that wireless, skin-interfaced devices can, in certain circumstances of practical utility, accurately and continuously monitor BP in the PICU patient population.
Original language | English (US) |
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Article number | 2100383 |
Journal | Advanced Healthcare Materials |
Volume | 10 |
Issue number | 17 |
DOIs | |
State | Published - Sep 8 2021 |
Funding
C.L., J.‐T.K., S.S.K., and A.H.‐F. contributed equally to this work. D.E.W.‐M., C.M.R., and J.A.R. acknowledge funding support from the Gerber Foundation. C.L. and S.R.M. acknowledge funding support from the National Science Foundation Graduate Research Fellowship Program (NSF DGE‐1842165). This work made use of the Keck‐II facility and the NUFAB facility of Northwestern University's NUANCE Center, which has received support from the SHyNE Resource (NSF ECCS‐2025633), the IIN, and Northwestern's MRSEC program (NSF DMR‐1720139). Engineering efforts were supported by the Querrey Simpson Institute for Bioelectronics at Northwestern University. The authors gratefully acknowledge the late Dr. Lauren E. Marsillio for her contributions to this work. The authors also thank all of the patients and their families who participated in this study, as well as the PICU staff of the Ann & Robert H. Lurie Children's Hospital of Chicago.
Keywords
- blood pressure
- hemodynamics
- pediatrics
- soft electronics
- vital signs monitoring
- wireless wearables
ASJC Scopus subject areas
- Biomaterials
- Biomedical Engineering
- Pharmaceutical Science