Medical patients suffer a high mortality after critical illness; however, t
he causes of mortality after intensive care management are unclear. This st
udy's aims were to (a) explore what factors affect outcome after intensive
care and (b) identify medical patients at particularly high risk of mortali
ty. During one year, all patients admitted with a medical cause to the Crit
ical Care Complex were enrolled. Diagnosis on admission was recorded, and w
hether the reason for admission was a new clinical problem or an exacerbati
on of existing chronic illness. All patients were followed for a minimum of
one year. A total of 186 medical patients were included in the study. Fift
y-four medical patients died on intensive care (28.4% mortality), a further
16 died on the general ward after intensive care unit discharge (hospital
mortality 36.8%) and six following discharge home (1 year's mortality 40.9%
). Of the 16 patients who died on the general ward, 12 had been admitted to
the intensive care unit with a new, previously unrecognised problem rather
than exacerbation of a chronic pre-existing problem. However, on the gener
al ward, 'Do Not Resuscitate' orders were placed on seven of these 12 patie
nts. It would appear that some of the high post intensive care hospital mor
tality might be due to changes in resuscitation status in patients expected
to survive following intensive care unit discharge.