Abstract
Purpose
In recent years, point-of-care (POC) devices, especially smart wearables, have been introduced to provide a cost-effective, comfortable, and accessible alternative to polysomnography (PSG)—the current gold standard—for the monitoring, screening, and diagnosis of obstructive sleep apnea (OSA). Thorough validation and human subject testing are essential steps in the translation of these device technologies to the market. However, every device development group tests their device in their own way. No standard guidelines exist for assessing the performance of these POC devices. The purpose of this paper is to critically distill the key aspects of the various protocols reported in the literature and present a protocol that unifies the best practices for testing wearable and other POC devices for OSA.
Methods
A limited review and graphical descriptive analytics of literature—including journal articles, web sources, and clinical manuscripts by authoritative agencies in sleep medicine—are performed to glean the testing and validation methods employed for POC devices, specifically for OSA.
Results
The analysis suggests that the extent of heterogeneity of the demographics, the performance metrics, subject survey, hypotheses, and statistical analyses need to be carefully considered in a systematic protocol for testing POC devices for OSA.
Conclusion
We provide a systematic method and list specific recommendations to extensively assess various performance criteria for human subject testing of POC devices. A rating scale of 1–3 is provided to encourage studies to put a focus on addressing the key elements of a testing protocol.
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Funding
This study was funded by NSF-PFI-AIR-TT 1543226.
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Vivek Tangudu was the primary author of the paper. Kahkashan Afrin provided guidance to the primary author on the specific sources of literature and organization of the contents into tabular forms, and was responsible for detailing the contents of various sections in the manuscript. Sandy Reddy was responsible for conceptualizing the graphical representation as well as detailing the contents of the various sections in the manuscript. Nicolas Deutz and Steven Woltering contributed to the human subject testing and the review methodology. Satish Bukkapatnam is responsible for the organization, structure, and contents of the paper. All the authors were involved with the revision and editing process.
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Tangudu, V., Afrin, K., Reddy, S. et al. Toward standardizing the clinical testing protocols of point-of-care devices for obstructive sleep apnea diagnosis. Sleep Breath 25, 737–748 (2021). https://doi.org/10.1007/s11325-020-02171-5
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DOI: https://doi.org/10.1007/s11325-020-02171-5