Inhaled Nitric Oxide for Persistent Pulmonary Hypertension of the Newborn: The Physiology Matters
1 Section of Pulmonary and Critical Care Medicine, Department of Pediatrics, University of Colorado School of Medicine, The Children's Hospital, Denver, CO 80218-1088
2 Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, The Children's Hospital, Denver, CO 80218-1088
Pulmonary Medicine, B-395, The Children's Hospital, 1056 East Nineteenth Avenue, Denver, CO 80218-1088
The ability of inhaled nitric oxide (iNO) to acutely lower pulmonary vascular resistance (PVR) and improve oxygenation in diverse clinical settings suggests that iNO therapy may provide a unique tool to expand our current armamentariurn in treating various cardiopulmonary disorders, including persistent pulmonary hypertension of the newborn (PPHN). Treatment of severe PPHN has been limited in part by the lack of a selective pulmonary vasodilator that effectively lowers PVR without adverse effects on systemic arterial pressure, cardiac performance, or intrapulmonary shunt. In 1992, two articles were published in Lancet which reported that iNO can improve oxygenation in neonates with severe PPHN without lowering systemic pressure.1,2
Submitted on October 6, 1995Accepted on October 6, 1995
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