Blood Oxygen Saturation and Prolong Face Mask Use in Healthcare Workers in Port Harcourt Nigeria, in the COVID 19 Pandemic Era
Asian Journal of Cardiology Research,
Introduction: The World Health Organization (WHO) declared the Corona Virus disease 2019 (COVID 19) caused by Severe Acute Respiratory Syndrome Corona Virus 2(SARS-Cov-2) a pandemic in March 2020. Aerosolized infected droplets and airborne transmission have been proffered as means of transmission, and as such, the use of face masks has been advocated as a key strategy in the disease control - more so in health care workers who are at the fore-front of the pandemic. However, the use of face masks for prolonged periods has raised concerns on possible adverse effect on blood oxygenation, potentially affecting compliance.
Aim: To monitor the blood oxygen saturation (SPO2) of healthcare workers wearing facemasks for 8-hours in the course of their duties, in a tertiary institution in Port Harcourt, Nigeria.
Methods: A cross-sectional study of healthcare workers wearing face masks while working. Baseline pre-face mask use SPO2 was done at Zero hour. Subsequently, serial hourly SPO2 were recorded until completion at the eight-hour. The respiratory and pulse rates were recorded at zero and eight hours. The results were analysed and presented as Means, Medians, Graphs and Tables.
Results: There were 220 participants with more females 147(66.8%). Doctors constituted 133(60.5%). The baseline pre-facemask Mean SPO2 was 97.9% ±0.75. The Median SPO2 was 98%. The overall SPO2 trend across 8 hours was maintained above 97.7% for all participants. Age was significantly associated with differences in SPO2 trend (P=0.032) (P=006); while Type of Facemask use had no significant effect on mean SPO2 trend (p=1.00). There was no significant difference in respiratory and pulse rates pre and post 8-hours face mask use.
Conclusion: Healthcare workers using facemasks continuously over eight hours maintained normal SPO2 level, with physiologic adaptation of respiratory and pulse rates.
- Blood oxygen saturation
- face masks
- health workers
- COVID 19 pandemic.
How to Cite
World Health Organization. Modes of transmission of virus causing COVID-19: implications for IPC precaution recommendations. Available: https://www.who.int/news-room/commentaries/detail/modes-of-transmission-of-virus-causing-covid-19-implications-for-ipc-precaution-recommendations
Wang J, Du G. COVID-19 may transmit through aerosol. Ir J Med Sci. 2020;1–2. DOI: 10.1007/s11845-020-02218-2. (1971–)
Morawska L, Cao J. Airborne transmission of SARS-CoV-2: The world should face the reality. Environ Int. 2020;105730 . DOI: 10.1016/j.envint.2020.105730.
Shiu EYC, Leung NHL, Cowling BJ. Controversy around airborne versus droplet transmission of respiratory viruses: Implication for infection prevention. Curr Opin Infect Dis. 2019;32: 372–379. DOI: 10.1097/QCO.0000000000000563.
Kwok YLA, Gralton J, McLaws ML. Face touching: A frequent habit that has implications for hand hygiene. Am J Infect. Contr. 2015;43:112–114. DOI: 10.1016/j.ajic.2014.10.015.
World Health Organization (WHO). Infection prevention and control during health care when novel corona virus (nCoV) infection is suspected. Interim guidance; 19 March 2020. WHO 2020.
Sjodin H, Wilder-Smith A, Osman S, Farooq Z, Rocklov J. Only strict quarantine measures can curb the corona virus disease (COVID-19) outbreak in Italy. Euro Surveill. 2020;25.
Siegel JD, Rhinehart E, Jackson M, Chiarello L. Health care infection control practices advisory committee. Guideline for isolation precautions: Preventing transmission of infectious agents in health care settings. Am J Infect Control. 2007 Dec;35(10 Suppl 2):S65-164.
Washington DC. Institute of Medicine (IOM) National Academy of Sciences. Preventing transmission of pandemic influenza and other viral respiratory diseases: Personal protective equipment for healthcare personnel update 201 : The National Academies Pres; 2010.
FDA. Masks and N95 Respirators. Available: https://www.fda.gov/MedicalDevices/ProductsandMedicalProcedures/GeneralHospitalDevicesandSupplies/PersonalProtectiveEquipment/ucm055977.htm
Schied JL, Lupien SP, Ford GS, West SL. Commentary: Physiological and psychological impact of face mask usage during the COVID-19 pandemic. Int J Environ Res Public Health. 2020;17(18): 6655. Available:https://doi.org/10.3390/ijerph17186655
Beder A, Büyükkoçak U, Sabuncuoğlu H, Keskil ZA, Keskil S. Preliminary report on surgical mask induced deoxygenation during major surgery. Neurocirugia (Astur). 2008;19(2):121-126. DOI: 10.1016/s1130-1473(08)70235-5
Parsons J. Do masks cause lower oxygen levels? The Ohio State University Wexner Medical center. Available:https://wexnermedical.osu.edu/blog/masks-oxygen-levels
Dattel AR, O’Toole NM, Lopez G, Byrnes, KP. Face mask effects of CO2, Heart rate, respiration rate, and oxygen saturation on instructor pilots. Collegiate Aviation Review International. 2020;38(2):1-11. Available:http://ojs.library.okstate.edu/osu/index.php/CARI/article/view/8038/7412
World health Organization (WHO). Pulse oximetry training manual. Available:https://www.who.int/patientsafety/safesurgery/pulse_oximetry/who_ps_pulse_oxymetry_training_manual_en.pdf?ua=1
Nku CO, Peters EJ, Esheit I, Oku O, Osim EE. Lung function, oxygen saturation and symptoms among street sweepers in Calabar, Nigeria. Nigerian Journal of Physiological Sciences. 2005;20(1-2):79-84.
Doyle GR, McCutcheon JA. Clinical procedures for safer patient care. British Columbia Institute of Technology. Available:https://opentextbc.ca/vitalsign/chapter/what-are-normal-oxygen-saturation-levels/
Roberge RJ, Coca A, Williams WJ, Powell JB, Palmiero AJ. Physiological impact of the N95 filtering facepiece respirator on healthcare workers. Respir. Care. 2010;55:9.
Kenney WL, Wilmore JH, Costill DL. Physiology of Sport and Exercise, 7th ed, Human kinetics: Champaign, IL, USA; 2020.
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