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. Author manuscript; available in PMC: 2013 Feb 1.
Published in final edited form as: J Pediatr. 2011 Sep 9;160(2):245–251. doi: 10.1016/j.jpeds.2011.07.040

Figure 1.

Figure 1

Changes in blood gases and hemoglobin concentration during treatment of pulmonary hypertension in infants. After beginning to breathe 20 ppm iNO arterial oxygen tension and oxyhemoglobin saturation increase significantly and the increase persists during treatment and weaning. Hemoglobin levels decrease and arterial pH increases during weaning (*=significant difference from baseline, p<0.05; *=significant difference from baseline, p<0.01, 1-way ANOVA with Bonferroni post test). Hemoglobin oxygen saturation (HbO2) is significantly lower in patients with pulmonary hypertension compared with controls (+=p<0.05, unpaired t-test).