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Correction: Non-invasive ventilation with pursed lips breathing mode for patients with COPD and hypercapnic respiratory failure: A retrospective analysis

  • Christoph Jünger,
  • Maja Reimann,
  • Lenka Krabbe,
  • Karoline I. Gaede,
  • Christoph Lange,
  • Christian Herzmann,
  • Stephan Rüller
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In Fig 4, panel B does not appear. In Fig 5, panels B and C do not appear. Please see the correct Figs 4 and 5 here.

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Fig 4. pCO2 values at baseline and follow-up and correlation of ΔpCO2 with ΔIPAP.

A. Each line represents an early morning pCO2 value for a single patient at baseline and follow up. B. Scatter plot illustrating the correlation of ΔpCO2 (pCO2 at follow-up—pCO2 at baseline) and ΔIPAP (IPAP at follow-up—IPAP at baseline).

https://doi.org/10.1371/journal.pone.0247693.g001

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Fig 5. 6MWT distances at baseline and follow-up and correlations of Δ6MWT with ΔIPAP and ΔpCO2.

A. Walking distances in the 6MWT at baseline and at follow-up. Each line represents a patient. B. Scatter plot illustrating the correlation of Δ6MWT (6MWT at follow-up– 6MWT at baseline) and ΔIPAP (IPAP at follow-up—IPAP at baseline). C. Scatter plot illustrating the correlation of Δ6MWT (6MWT at follow.up– 6MWT at baseline) and ΔpCO2 (pCO2 at follow-up—pCO2 at baseline).

https://doi.org/10.1371/journal.pone.0247693.g002

Reference

  1. 1. Jünger C, Reimann M, Krabbe L, Gaede KI, Lange C, Herzmann C, et al. (2020) Non-invasive ventilation with pursed lips breathing mode for patients with COPD and hypercapnic respiratory failure: A retrospective analysis. PLoS ONE 15(9): e0238619. https://doi.org/10.1371/journal.pone.0238619 pmid:32956395