Document Classification

Section Type: RESULTS

Text: Sodium nitroprusside and prostacyclin reduced the transpulmonary gradient (-4. 5 + / -2 mm Hg ; P < 0. 01 and -3. 6 + / -2 mm Hg ; P < 0. 05), pulmonary vascular resistance (-1. 5 + / -0. 4 WU ; P < 0. 001 and -1. 3 + / -0. 4 WU ; P < 0. 01), systemic vascular resistance (-7 + / -2 WU ; P < 0. 01 and -7. 2 + / -2 WU ; P < 0. 01) and mean systemic arterial pressure (-15 + / -5 mm Hg ; P < 0. 01 and -18 + / -4 mm Hg ; P < 0. 01).