Question 1

How does SAPS II compare to APACHE II?

Accepted Answer

Both predict ICU mortality. SAPS II uses 15 variables (vs. APACHE II's 13 + age + chronic health) and was derived from a larger cohort. Performance is similar (C-statistic ~0.85).

Question 2

Can SAPS II be calculated on readmitted patients?

Accepted Answer

Yes — calculate based on the worst values in the first 24 hours of the new ICU admission. Do not carry forward values from the previous ICU stay.

Question 3

How should I score GCS in sedated patients?

Accepted Answer

Use the best estimate of GCS before sedation. If unknown, assume a normal GCS of 15. Using the actual GCS in deeply sedated patients will overestimate severity.

Question 4

Is SAPS III a replacement for SAPS II?

Accepted Answer

SAPS III (2005) incorporates pre-ICU admission factors. SAPS II remains widely used due to its simplicity and extensive validation database.