The outcome of patients admitted to intensive care after a cardiac arr
est was determined by reviewing intensive care unit records at four ho
spitals for 1993 and 1994. Of the 112 patients identified, 49 survived
intensive care of whom 28 were discharged from hospital. In January 1
996, 26 of the 28 patients could be traced; 22 of these were still ali
ve. Seven factors were significantly different between survivors and n
onsurvivors. At the cardiac arrest these were the number of direct cur
rent shocks (p < 0.05) and adrenaline doses (p < 0.01) given. In inten
sive care the factors were the presence of reactive pupils (p < 0.01),
Glasgow Coma Score (p < 0.001), APACHE II score (p < 0.05), arterial
standard bicarbonate (p < 0.05) and the use of inotropes (p < 0.05). I
t was not possible to use individual variables to predict outcome at t
he time of intensive care unit admission. The results suggest that neu
rological function is an important determinant of outcome and more sen
sitive neurophysiological testing might be a useful prognostic tool.