Key result
Calculating the APACHE II score at ICU admission rather than before surgery significantly increased the score (24.2 vs 17.8, P<.001) and overestimated observed mortality (50% vs 32%, P=.02).
Why the study?
Does the timing of APACHE II score calculation affect predicted mortality accuracy in emergency surgical patients?
Population
85 consecutive emergency surgical patients admitted to the surgical ICU in 1999 at a secondary referral…
Design
Cohort
Follow-up
up to 10 days postoperatively
Authors
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Postoperative APACHE II calculation was associated with mortality overestimation; leaves open optimal timing for risk prediction and requires prospective validation.
Cohort (n=85)
No
Does the timing of APACHE II score calculation affect predicted mortality accuracy in emergency surgical patients?
Absolute Event Rate: 24.2% vs 17.8%
p-value: p=<.001
APACHE II scores should be calculated before surgical treatment in emergency surgical patients, as postoperative scores overestimate mortality risk.
Thomas Koperna (2001) conducted a cohort in Emergency surgical patients (n=85). APACHE II score at ICU admission vs. APACHE II score before surgery was evaluated on APACHE II score (p=<.001). Calculating the APACHE II score at ICU admission rather than before surgery significantly increased the score (24.2 vs 17.8, P<.001) and overestimated observed mortality (50% vs 32%, P=.02).
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