Nitric oxide has been determined to be a potential mediator of the hae
modynamic changes associated with sepsis. The haemodynamic eects of ni
tric oxide can be partially antagonised by methylene blue, through inh
ibition of the enzyme, guanylate cyclase. The case report presented he
re demonstrates a beneficial haemodynamic eect of continuous infusion
of methylene blue during sepsis, These findings could be extrapolated
to other patients or prompt additional research.