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A consumer wearable device for tracking sleep respiratory events

  • Sleep Breathing Physiology and Disorders • Short Communication
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Abstract

Purpose

The diagnosis of obstructive sleep apnea (OSA) is instrument, operator, and time-dependent and therefore requires long waiting times. In recent decades, technological development has produced useful devices to monitor the health status of the population, including sleep. Therefore, the aim of this study was to evaluate a wearable device (WD) in a group of individuals at high risk of OSA.

Methods

The study was conducted on consecutive subjects with high risk of OSA assessed by sleep questionnaires and clinical evaluation. All subjects performed cardio-respiratory monitoring (CRM) and WD simultaneously on a single night, after which the parameters of the two sleep investigations were compared.

Results

Of 20 individuals enrolled, 60% were men and mean age was 57.3 ± 10.7 years. The apnea–hypopnea index (AHI) for the CRM was 23.1 ± 19.6 events·h−1 while it was 10.3 ± 8.3 events·h−1 for the WD. Correlation analysis between the results of the two investigations showed r = 0.19 (p = 0.40) for AHI and r = 0.4076 (p = 0.07) for sO2%. The accuracy for different stages of OSA severity was 70% in OSA cases and 60% in moderate to severe cases with sensitivity and specificity varying a great deal.

Conclusion

Small and low-cost devices may prove to be a valuable resource to reduce costs and waiting times for a sleep investigation in suspected OSA. However, diagnosis of sleep apnea requires valid and reliable instruments, so validation tests are necessary before a device can be commercialized.

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Fig. 1
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Data availability

Data will be available on reasonable request to the corresponding author.

Abbreviations

AHI:

Apnea-hypopnea index

ESS:

Epworth sleepiness scale

CRM:

Cardiorespiratory monitoring

G2s:

Go2sleep wearable device

HR:

Heart rate

HSAT:

Home sleep apnea test

ODI:

Oxygen desaturation index

OSA:

Obstructive sleep apnea

sO2:

Blood oxygen saturation

SRBD:

Sleep-related breathing disorders

T90:

Total recording time with oxygen saturation under 90%

WD:

Wearable device

References

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Acknowledgements

The authors would like to thank M.S. Di Maggio, R. Carapellese, and M.P. Di Cianni for their support in the study.

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Authors and Affiliations

  1. Department of Medical and Surgical Sciences, University of Foggia, Viale Luigi Pinto, 1 - 71122, Foggia, Italy

    Pasquale Tondo, Donato Lacedonia, Rosa Leccisotti, Maria Pia Foschino Barbaro & Giulia Scioscia

  2. Respiratory and Intermediate Care Unit, “Policlinico Foggia” University Hospital, 71122, Foggia, Italy

    Pasquale Tondo, Donato Lacedonia, Roberto Sabato, Rosa Leccisotti, Maria Pia Foschino Barbaro & Giulia Scioscia

  3. Department of Electrical and Information Engineering, Polytechnic University of Bari, 70125, Bari, Italy

    Francesco Dell’Olio

Authors
  1. Pasquale Tondo
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  2. Francesco Dell’Olio
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  3. Donato Lacedonia
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  4. Roberto Sabato
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  5. Rosa Leccisotti
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  6. Maria Pia Foschino Barbaro
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  7. Giulia Scioscia
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Contributions

Conceptualization: Pasquale Tondo, Francesco Dell’Olio, and Donato Lacedonia; methodology: Pasquale Tondo, Francesco Dell’Olio, and Donato Lacedonia; formal analysis and investigation: Pasquale Tondo and Donato Lacedonia; writing — original draft preparation: Pasquale Tondo and Rosa Leccisotti; writing — review and editing: Francesco Dell’Olio, Donato Lacedonia, Roberto Sabato, Maria Pia Foschino Barbaro, and Giulia Scioscia; resources: Pasquale Tondo, Francesco Dell’Olio, Donato Lacedonia, Roberto Sabato, and Rosa Leccisotti; supervision: Donato Lacedonia.

Corresponding author

Correspondence to Pasquale Tondo.

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Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (Ethics Committee of Policlinico Foggia University Hospital, approval no. 17/CE/2014) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

Conflict of interest

The authors declare no competing interests.

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Pasquale Tondo and Francesco Dell’Olio are co-first authors.

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Tondo, P., Dell’Olio, F., Lacedonia, D. et al. A consumer wearable device for tracking sleep respiratory events. Sleep Breath 27, 1485–1489 (2023). https://doi.org/10.1007/s11325-022-02743-7

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  • DOI: https://doi.org/10.1007/s11325-022-02743-7

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