Inhaled nitric oxide selectively dilates pulmonary vasculature in adult patients with pulmonary hypertension, irrespective of etiology
Richard A. Krasuski, MD*,
John J. Warner, MD*,
Andrew Wang, MD*,
J. Kevin Harrison, MD*,
Victor F. Tapson, MD and
Thomas M. Bashore, MD*
* Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
Division of Pulmonary and Critical Care, Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA

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Figure 1 Response to iNO. The majority of the response is seen at 10 ppm of NO in both groups. However, patients with SPH show a trend toward a further pressure reduction with higher doses of iNO.
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