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. 2020 May 29;15(5):e0233851. doi: 10.1371/journal.pone.0233851

Fig 2. Hemodynamic and oxygenation changes during PA.

Fig 2

In all panels, solid lines indicate the mean and the grey shaded area the SEM. (n = 13). After obtaining baselines, PA was initiated resulting first in the transient elevation of mean arterial blood pressure (MABP, top panel) and heart rate (HR, middle panel) accompanying the rapid fall in blood oxygen saturation (pulsoxymetry, bottom panel). While blood oxygen saturation remained ~20% throughout the asphyxia, after the initial peak, MABP fell continuously below baseline, whereas the drop in HR was more moderate and HR remained elevated. Reventilation with air quickly restored oxygen saturation and induced a second transient elevation in both MABP and HR.