Objective: Although unlicensed, inhaled nitric oxide (NO) therapy is n
ow widely used in the United Kingdom. Our aim was to produce guideline
s for the clinical application of inhaled NO in adult intensive care p
ractice, based upon the current level of published information. Method
s: The published data regarding the use of inhaled NO in the acute res
piratory distress syndrome and right-sided cardiac failure was present
ed, analysed and discussed. Recommendations based on these data as wel
l as on current experience in the United Kingdom were formulated. Desi
gn: An expert group comprising intensive care specialists from within
the United Kingdom, representatives from the European Society of Inten
sive Care Medicine and the Society of Critical Care Medicine and indiv
iduals from the Departments of Health and Industry related to the fiel
d was assembled. Results: United Kingdom guidelines for the indication
s, contraindications, dose, delivery, monitoring and scavenging of inh
aled NO therapy were produced. Conclusions: The need for additional qu
ality research to establish evidence of efficacy and safety was emphas
ized. The guidelines are designed to act within the context of current
practice and knowledge and should be revised as further data emerge.