Accuracy of vital parameters measured by a wearable patch following major abdominal cancer surgery

Jonna A. van der Stam (Corresponding author), Eveline H.J. Mestrom, Jai Scheerhoorn, Fleur Jacobs, Ignace H.J.T. de Hingh, Natal A.W. van Riel, Arjen-Kars Boer, Volkher Scharnhorst, Simon W. Nienhuijs, R. Arthur Bouwman

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INTRODUCTION: Recent advances in wearable technology allow for the development of wirelessly connected sensors to continuously measure vital parameters in the general ward or even at home. The present study assesses the accuracy of a wearable patch (Healthdot) for continuous monitoring of heartrate (HR) and respiration rate (RR).

MATERIALS AND METHODS: The Healthdot measures HR and RR by means of chest accelerometry. The study population consisted of patients following major abdominal oncological surgery. The analysis focused on the agreement between HR and RR measured by the Healthdot and the gold standard patient monitor in the intensive and post-anesthesia care unit.

RESULTS: For HR, a total of 112 h of measurements was collected in 26 patients. For RR, a total of 102 h of measurements was collected in 21 patients. On second to second analysis, 97% of the HR and 87% of the RR measurements were within 5 bpm and 3 rpm of the reference monitor. Assessment of 5-min averaged data resulted in 96% of the HR and 95% of the RR measurements within 5 bpm and 3 rpm of the reference monitor. A Clarke error grid analysis showed that 100% of the HR and 99.4% of the 5-min averaged data was clinically acceptable.

CONCLUSION: The Healthdot accurately measured HR and RR in a cohort of patients recovering from major abdominal surgery, provided that good quality data was obtained. These results push the Healthdot forward as a clinically acceptable tool in low acuity settings for unobtrusive, automatic, wireless and continuous monitoring.

Original languageEnglish
Pages (from-to)917-923
Number of pages7
JournalEuropean Journal of Surgical Oncology
Issue number4
Publication statusPublished - Apr 2022


This study was initiated from the Eindhoven MedTech Innovation Center (e/MTIC), the project is a collaboration of the Catharina Hospital in Eindhoven, Technical University of Eindhoven, and Philips Research of the Netherlands. The authors wish to thank Philips research for their constructive and practical contributions.

FundersFunder number
Eindhoven MedTech Innovation Center
Eindhoven University of Technology


    • Heart Rate
    • Humans
    • Monitoring, Physiologic
    • Neoplasms
    • Respiratory Rate
    • Wearable Electronic Devices
    • Physiologic monitoring
    • Accelerometer
    • Major-abdominal cancer surgery
    • Wearable electronic devices


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