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. Author manuscript; available in PMC: 2017 Jun 1.
Published in final edited form as: Semin Fetal Neonatal Med. 2016 Feb 18;21(3):162–173. doi: 10.1016/j.siny.2016.02.001

Fig. 3.

Fig. 3

Comparison of relative effectiveness of gas exchange by non-invasive mode (nasal intermittent positive pressure ventilation (NIPPV) vs high-frequency nasal ventilation (HFNV)). High frequency rate has a significant impact on the effectiveness of gas exchange in a test-lung model, with apparent optimal rate for this model at 8 Hz. High frequency via VN500 (Dräger Medical, Lübeck, Germany). (Adapted from Ref. [21].)