Key result
iNO reduces PVR comparably to hyperventilation but selectively lowers PAP without decreasing cardiac output.
Why the study?
Does inhaled nitric oxide compared to hyperventilation improve hemodynamics in children with pulmonary hypertension after repair of congenital heart disease?
RCT (n=12)
Randomized crossover
No
Does inhaled nitric oxide compared to hyperventilation improve hemodynamics in children with pulmonary hypertension after repair of congenital heart disease?
Inhaled nitric oxide offers advantages over hyperventilation for postoperative pulmonary hypertension in children by selectively reducing pulmonary vascular resistance without decreasing cardiac output.
Supports iNO preference over hyperventilation after congenital heart repair to preserve cardiac output; extends RCT evidence for selective pulmonary vasodilation.
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Morris et al. (2000) conducted an RCT in Pulmonary hypertension after repair of congenital heart disease (n=12). Inhaled nitric oxide (iNO) vs. Hyperventilation (HV) was evaluated on Pulmonary and systemic hemodynamics (including PAP, PVR, and cardiac output). Inhaled nitric oxide and hyperventilation comparably reduced pulmonary vascular resistance, but iNO selectively reduced PVR and pulmonary artery pressure without decreasing cardiac output.
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