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Effectiveness of preoxygenation by conventional face mask versus non-invasive ventilation in morbidly obese patients: measurable by the oxygen-reserve index?

Standard

Effectiveness of preoxygenation by conventional face mask versus non-invasive ventilation in morbidly obese patients: measurable by the oxygen-reserve index? / Bathe, Janina; Malik, Sadia; Pinnschmidt, Hans O; Zitzmann, Amelie; Behem, Christoph R; Trepte, Constantin C; Reuter, Daniel A.

In: J CLIN MONIT COMPUT, Vol. 36, No. 6, 12.2022, p. 1767-1774.

Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review

Harvard

Bathe, J, Malik, S, Pinnschmidt, HO, Zitzmann, A, Behem, CR, Trepte, CC & Reuter, DA 2022, 'Effectiveness of preoxygenation by conventional face mask versus non-invasive ventilation in morbidly obese patients: measurable by the oxygen-reserve index?', J CLIN MONIT COMPUT, vol. 36, no. 6, pp. 1767-1774. https://doi.org/10.1007/s10877-022-00825-1

APA

Bathe, J., Malik, S., Pinnschmidt, H. O., Zitzmann, A., Behem, C. R., Trepte, C. C., & Reuter, D. A. (2022). Effectiveness of preoxygenation by conventional face mask versus non-invasive ventilation in morbidly obese patients: measurable by the oxygen-reserve index? J CLIN MONIT COMPUT, 36(6), 1767-1774. https://doi.org/10.1007/s10877-022-00825-1

Vancouver

Bathe J, Malik S, Pinnschmidt HO, Zitzmann A, Behem CR, Trepte CC et al. Effectiveness of preoxygenation by conventional face mask versus non-invasive ventilation in morbidly obese patients: measurable by the oxygen-reserve index? J CLIN MONIT COMPUT. 2022 Dec;36(6):1767-1774. https://doi.org/10.1007/s10877-022-00825-1

Bibtex

@article{c3cec1631039409b8d156cbf8531894a,
title = "Effectiveness of preoxygenation by conventional face mask versus non-invasive ventilation in morbidly obese patients: measurable by the oxygen-reserve index?",
abstract = "Preoxygenation is a crucial manoeuvre for patients' safety, particularly for morbidly obese patients due to their reduced pulmonary reserve and increased risk for difficult airway situations. The oxygen reserve index (ORI{\texttrademark}) was recently introduced as a new parameter of multiple wavelength pulse oximetry and has been advocated to allow assessment of hyperoxia [quantified by the resulting arterial oxygen partial pressure (PaO2)]. This study investigates if ORI can be used to evaluate the impact of two different preoxygenation manoeuvres on the grade of hyperoxia. Two preoxygenation manoeuvres were sequentially evaluated in 41 morbidly obese patients: First, breathing 100% oxygen for 5 min via standard face mask. Second, after achieving a second baseline, 5 min of non-invasive ventilation (NIV) with 100% oxygen. The effect of preoxygenation on ORI compared to PaO2 was evaluated and whether differences in the two preoxygenation manoeuvres can be monitored by ORI. Overall correlation of PaO2 and ORI was significant (Spearman-Rho coefficient of correlation 0.818, p < 0.001). However, ORI could not differentiate between the two preoxygenation manoeuvres although the PaO2 values for NIV preoxygenation were significantly higher compared to standard preoxygenation (median 505 mmHg (M1) vs. 550 mmHg (M3); p < 0.0001). In contrast, ORI values did not differ significantly (median 0.39 (M1) vs. 0.38 (M3); p = 0.758). Absolute values of ORI cannot be used to assess effectiveness of a preoxygenation procedure in bariatric patients, mainly because its range of discrimination is considerably lower than the high ranges of PaO2 attained by adequate preoxygenation. Trial registration German Clinical Trials Register: DRKS00025023 (retrospectively registered on April 16th, 2021).",
author = "Janina Bathe and Sadia Malik and Pinnschmidt, {Hans O} and Amelie Zitzmann and Behem, {Christoph R} and Trepte, {Constantin C} and Reuter, {Daniel A}",
note = "{\textcopyright} 2022. The Author(s).",
year = "2022",
month = dec,
doi = "10.1007/s10877-022-00825-1",
language = "English",
volume = "36",
pages = "1767--1774",
journal = "J CLIN MONIT COMPUT",
issn = "1387-1307",
publisher = "Springer Netherlands",
number = "6",

}

RIS

TY - JOUR

T1 - Effectiveness of preoxygenation by conventional face mask versus non-invasive ventilation in morbidly obese patients: measurable by the oxygen-reserve index?

AU - Bathe, Janina

AU - Malik, Sadia

AU - Pinnschmidt, Hans O

AU - Zitzmann, Amelie

AU - Behem, Christoph R

AU - Trepte, Constantin C

AU - Reuter, Daniel A

N1 - © 2022. The Author(s).

PY - 2022/12

Y1 - 2022/12

N2 - Preoxygenation is a crucial manoeuvre for patients' safety, particularly for morbidly obese patients due to their reduced pulmonary reserve and increased risk for difficult airway situations. The oxygen reserve index (ORI™) was recently introduced as a new parameter of multiple wavelength pulse oximetry and has been advocated to allow assessment of hyperoxia [quantified by the resulting arterial oxygen partial pressure (PaO2)]. This study investigates if ORI can be used to evaluate the impact of two different preoxygenation manoeuvres on the grade of hyperoxia. Two preoxygenation manoeuvres were sequentially evaluated in 41 morbidly obese patients: First, breathing 100% oxygen for 5 min via standard face mask. Second, after achieving a second baseline, 5 min of non-invasive ventilation (NIV) with 100% oxygen. The effect of preoxygenation on ORI compared to PaO2 was evaluated and whether differences in the two preoxygenation manoeuvres can be monitored by ORI. Overall correlation of PaO2 and ORI was significant (Spearman-Rho coefficient of correlation 0.818, p < 0.001). However, ORI could not differentiate between the two preoxygenation manoeuvres although the PaO2 values for NIV preoxygenation were significantly higher compared to standard preoxygenation (median 505 mmHg (M1) vs. 550 mmHg (M3); p < 0.0001). In contrast, ORI values did not differ significantly (median 0.39 (M1) vs. 0.38 (M3); p = 0.758). Absolute values of ORI cannot be used to assess effectiveness of a preoxygenation procedure in bariatric patients, mainly because its range of discrimination is considerably lower than the high ranges of PaO2 attained by adequate preoxygenation. Trial registration German Clinical Trials Register: DRKS00025023 (retrospectively registered on April 16th, 2021).

AB - Preoxygenation is a crucial manoeuvre for patients' safety, particularly for morbidly obese patients due to their reduced pulmonary reserve and increased risk for difficult airway situations. The oxygen reserve index (ORI™) was recently introduced as a new parameter of multiple wavelength pulse oximetry and has been advocated to allow assessment of hyperoxia [quantified by the resulting arterial oxygen partial pressure (PaO2)]. This study investigates if ORI can be used to evaluate the impact of two different preoxygenation manoeuvres on the grade of hyperoxia. Two preoxygenation manoeuvres were sequentially evaluated in 41 morbidly obese patients: First, breathing 100% oxygen for 5 min via standard face mask. Second, after achieving a second baseline, 5 min of non-invasive ventilation (NIV) with 100% oxygen. The effect of preoxygenation on ORI compared to PaO2 was evaluated and whether differences in the two preoxygenation manoeuvres can be monitored by ORI. Overall correlation of PaO2 and ORI was significant (Spearman-Rho coefficient of correlation 0.818, p < 0.001). However, ORI could not differentiate between the two preoxygenation manoeuvres although the PaO2 values for NIV preoxygenation were significantly higher compared to standard preoxygenation (median 505 mmHg (M1) vs. 550 mmHg (M3); p < 0.0001). In contrast, ORI values did not differ significantly (median 0.39 (M1) vs. 0.38 (M3); p = 0.758). Absolute values of ORI cannot be used to assess effectiveness of a preoxygenation procedure in bariatric patients, mainly because its range of discrimination is considerably lower than the high ranges of PaO2 attained by adequate preoxygenation. Trial registration German Clinical Trials Register: DRKS00025023 (retrospectively registered on April 16th, 2021).

U2 - 10.1007/s10877-022-00825-1

DO - 10.1007/s10877-022-00825-1

M3 - SCORING: Journal article

C2 - 35167036

VL - 36

SP - 1767

EP - 1774

JO - J CLIN MONIT COMPUT

JF - J CLIN MONIT COMPUT

SN - 1387-1307

IS - 6

ER -