... safe, but is it useful?Since 1996, when Connors and colleagues published datasuggesting right heart catheterisation in critically ill patientswas associated with an increase in mortality [1], ... significantdifferences in either inhospital mortality, length of stay or costbetween patients who had or who had not had a pulmonaryartery catheter.In the second, French, study, 676 patients with either shock,acute ... thecontroversies regarding optimal cardiovascular management rather than any intrinsic problem with flow monitoring.The murky world of the recruitmentmanoeuvreThe ARDSnet group continue in their quest...