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Voennov O.V.

Privolzhsky Research Medical University

Zubeev P.S.

Privolzhsky Research Medical University

Mokrov K.V.

Clinical Hospital No. 33

Turentinov A.V.

Clinical Hospital No. 33

Osipova M.M.

Privolzhsky Research Medical University

Pogorelova K.M.

Privolzhsky Research Medical University

SpO2/RR index in choosing the method for correction of acute respiratory failure in COVID-19 patients

Authors:

Voennov O.V., Zubeev P.S., Mokrov K.V., Turentinov A.V., Osipova M.M., Pogorelova K.M.

More about the authors

Journal: Russian Journal of Anesthesiology and Reanimatology. 2025;(2): 50‑58

DOI: 10.17116/anaesthesiology202502150

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Table of contents

SPO2/RR INDEX IN CHOOSING THE METHOD FOR CORRECTION OF ACUTE RESPIRATORY FAILURE IN COVID-19 PATIENTS
SPO2/RR INDEX IN CHOOSING THE METHOD FOR CORRECTION OF ACUTE RESPIRATORY FAILURE IN COVID-19 PATIENTS

To cite this article:

Voennov OV, Zubeev PS, Mokrov KV, Turentinov AV, Osipova MM, Pogorelova KM. SpO2/RR index in choosing the method for correction of acute respiratory failure in COVID-19 patients. Russian Journal of Anesthesiology and Reanimatology. 2025;(2):50‑58. (In Russ.)
https://doi.org/10.17116/anaesthesiology202502150

МСФ на ЯМ
Использование инфографики авторами научных работ
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Abstract:

OBJECTIVE

To study advisability of the SpO2/RR index in COVID-19 patients with spontaneous breathing and various severity of ARF regarding achievement of parameters of effective standard oxygen therapy and non-invasive ventilation.

MATERIAL AND METHODS

A single-center prospective study included 84 patients of both sexes with severe course of new coronavirus infection and symptoms of ARF. Upon admission to the ICU, all patients underwent standard oxygen therapy (SOT) and non-invasive ventilation if necessary. We analyzed RR, SpO2, SpO2/RR, SpO2/FiO2, SpO2/FiO2/RR (ROX index), PaO2/FiO2 in patients with effective and ineffective therapy. The Wilcoxon test and the Mann—Whitney U-test were used for statistical analysis.

RESULTS

In patients with spontaneous respiration and ARF, SOT was effective in case of baseline SpO2/RR index >3.4—3.5. In patients with ineffective SOT, non-invasive ventilation was successful in case of SpO2/RR index within 2.5—3.5.

CONCLUSION

The SpO2/RR index can be used to choose the method for correction of ARF in COVID — 19 patients with spontaneous breathing. The SpO2/RR index >3.5 increases the likelihood of saturation >92% under SOT while index >2.5 indicates higher probability of saturation >92% under non-invasive ventilation.

Keywords:

acute respiratory failure (ARF)
COVID-19
SpO2/RR index

Authors:

Voennov O.V.

Privolzhsky Research Medical University

Zubeev P.S.

Privolzhsky Research Medical University

Mokrov K.V.

Clinical Hospital No. 33

Turentinov A.V.

Clinical Hospital No. 33

Osipova M.M.

Privolzhsky Research Medical University

Pogorelova K.M.

Privolzhsky Research Medical University

Received:

28.02.2024

Accepted:

16.04.2024

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