Kaben et al identified risk factors associated with in-hospital mortality for a surgical patient readmitted to the intensive care unit (ICU). This can help to identify a patient who may need more aggressive management and closer monitoring. The authors are Friedrich Schiller University in Jena, Germany.


Patient selection: surgical patients admitted postoperatively


Most readmissions occurred within the first 5 weeks after discharge (see Figure 1).


A patient who is readmitted has a significant risk for in-hospital mortality.


Risk factors for in-hospital mortality:

(1) higher SAPS II score on initial admission to the ICU

(2) chronic renal failure

(3) initial hospital admission after gastrointestinal surgery

Risk Factor

Odds Ratio


1.02 per point

chronic renal failure


history of gastrointestinal surgery




• The maximum SAPS II score is 160.

• A SAPS II score of 45 would have an odds ratio of (1.02)^45 = 2.4.

• The SAPS II score for patients readmitted to the ICU was 37.1 +/- 16.4 (Table 1).


Additional risk factors:

(1) presence of cancer


To read more or access our algorithms and calculators, please log in or register.