• R J Beer, T A Teasdale, H F Ghusn, and G E Taffet.
• Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030.
• Resuscitation. 1994 May 1; 27 (3): 189-95.

AbstractThe ability to predict outcomes of cardiac arrest before starting cardiopulmonary resuscitation (CPR) would be useful for discussions of resuscitation with elders and their families. We thought CPR outcome might be dependent on the severity of pre-existing illnesses. The APACHE II is a severity-of-illness (SOI) scale based, in part, on physiologic parameters whereby points are given for degree of deviation from normal. Additionally, up to six points are given for increased age. We hypothesized that (1) patients with the highest APACHE II would be least likely to survive, and (2) because of the blunted physiologic responsiveness, the APACHE II would underestimate the SOI of elderly patients who were sufficiently ill to have a cardiac arrest. A retrospective study of 172 arrests was carried out to evaluate these hypotheses. For the young cohort (n = 126; age, < 70; mean age, 59 +/- 8), mean admission APACHE II was 16.5 +/- 7.9 and pre-arrest APACHE II regression analysis.2+ carried out with both APACHE II scores and factors previously correlated with CPR outcome. Witnessed arrests and those requiring a low number of medications were most likely to result in immediate success (restoration of blood pressure) and in a live discharge. APACHE II score (24 h pre-arrest) was associated with live discharge in the regression analysis.(ABSTRACT TRUNCATED AT 250 WORDS)

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