Feasibility and safety of ultra-low tidal volume ventilation without extracorporeal circulation in moderately severe and severe ARDS patients
Purpose Mechanical ventilation with ultra-low tidal volume (VT) during ARDS may reduce alveolar strain, driving pressure and hence ventilator-induced lung injury, with the main drawback of worsening respiratory acidosis. We hypothesized that VT could be reduced down to 4 ml/kg, with clinically significant decrease in driving pressure, without the need for extracorporeal $ CO_{2} $ removal, while maintaining pH > 7.20. Methods We conducted a non-experimental before-and-after multicenter study on 35 ARDS patients with $ PaO_{2} $/$ FiO_{2} $ ≤ 150 mmHg, within 24 h of ARDS diagnosis. After inclusion, VT was reduced to 4 ml/kg and further adjusted to maintain pH ≥ 7.20, respiratory rate was increased up to 40 $ min^{−1} $ and PEEP was set using a PEEP–$ FiO_{2} $ table. The primary judgment criterion was driving pressure on day 2 of the study, as compared to inclusion. Results From inclusion to day 2, driving pressure decreased significantly from 12 [9–15] to 8 [6–11] $ cmH_{2} $O, while VT decreased from 6.0 [5.9–6.1] to 4.1 [4.0–4.7] ml/kg. On day 2, VT was below 4.2 ml/kg in 65% [$ CI_{95%} $ 48%–79%], and below 5.25 ml/kg in 88% [$ CI_{95%} $ 74%–95%] of the patients. 2 patients (6%) developed acute cor pulmonale after inclusion. Eleven patients (32%) developed transient severe acidosis with pH < 7.15. Fourteen patients (41%) died before day 90. Conclusion Ultra-low tidal volume ventilation may be applied in approximately 2/3 of moderately severe-to-severe ARDS patients, with a 4 $ cmH_{2} $O median reduction in driving pressure, at the price of transient episodes of severe acidosis in approximately 1/3 of the patients..
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2019 |
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Erschienen: |
2019 |
Enthalten in: |
Zur Gesamtaufnahme - volume:45 |
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Enthalten in: |
Intensive care medicine - 45(2019), 11 vom: 23. Sept., Seite 1590-1598 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Richard, J. C. [VerfasserIn] |
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Links: |
Volltext [lizenzpflichtig] |
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Themen: |
Acute respiratory distress syndrome |
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Anmerkungen: |
© Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
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doi: |
10.1007/s00134-019-05776-x |
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funding: |
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PPN (Katalog-ID): |
SPR001245503 |
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520 | |a Purpose Mechanical ventilation with ultra-low tidal volume (VT) during ARDS may reduce alveolar strain, driving pressure and hence ventilator-induced lung injury, with the main drawback of worsening respiratory acidosis. We hypothesized that VT could be reduced down to 4 ml/kg, with clinically significant decrease in driving pressure, without the need for extracorporeal $ CO_{2} $ removal, while maintaining pH > 7.20. Methods We conducted a non-experimental before-and-after multicenter study on 35 ARDS patients with $ PaO_{2} $/$ FiO_{2} $ ≤ 150 mmHg, within 24 h of ARDS diagnosis. After inclusion, VT was reduced to 4 ml/kg and further adjusted to maintain pH ≥ 7.20, respiratory rate was increased up to 40 $ min^{−1} $ and PEEP was set using a PEEP–$ FiO_{2} $ table. The primary judgment criterion was driving pressure on day 2 of the study, as compared to inclusion. Results From inclusion to day 2, driving pressure decreased significantly from 12 [9–15] to 8 [6–11] $ cmH_{2} $O, while VT decreased from 6.0 [5.9–6.1] to 4.1 [4.0–4.7] ml/kg. On day 2, VT was below 4.2 ml/kg in 65% [$ CI_{95%} $ 48%–79%], and below 5.25 ml/kg in 88% [$ CI_{95%} $ 74%–95%] of the patients. 2 patients (6%) developed acute cor pulmonale after inclusion. Eleven patients (32%) developed transient severe acidosis with pH < 7.15. Fourteen patients (41%) died before day 90. Conclusion Ultra-low tidal volume ventilation may be applied in approximately 2/3 of moderately severe-to-severe ARDS patients, with a 4 $ cmH_{2} $O median reduction in driving pressure, at the price of transient episodes of severe acidosis in approximately 1/3 of the patients. | ||
650 | 4 | |a Acute respiratory distress syndrome |7 (dpeaa)DE-He213 | |
650 | 4 | |a Permissive hypercapnia |7 (dpeaa)DE-He213 | |
650 | 4 | |a ECMO |7 (dpeaa)DE-He213 | |
650 | 4 | |a ECCO2R, ultraprotective ventilation |7 (dpeaa)DE-He213 | |
650 | 4 | |a Driving pressure |7 (dpeaa)DE-He213 | |
700 | 1 | |a Marque, S. |4 aut | |
700 | 1 | |a Gros, A. |4 aut | |
700 | 1 | |a Muller, M. |4 aut | |
700 | 1 | |a Prat, G. |4 aut | |
700 | 1 | |a Beduneau, G. |4 aut | |
700 | 1 | |a Quenot, J. P. |4 aut | |
700 | 1 | |a Dellamonica, J. |4 aut | |
700 | 1 | |a Tapponnier, R. |4 aut | |
700 | 1 | |a Soum, E. |4 aut | |
700 | 1 | |a Bitker, L. |4 aut | |
700 | 1 | |a Richecoeur, J. |4 aut | |
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