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Surgical Apgar Score from EBL, Lowest HR, and Lowest MAP Calculator

10-point score from intra-operative EBL, HR, MAP.

Compute the Surgical Apgar Score (Gawande et al. 2007), a 10-point post-operative risk-of-major-complication score from three intra-op variables: estimated blood loss (4=≤100, 3=101-600, 2=601-1000, 1=1001-2000, 0=>2000 mL); lowest mean arterial pressure (3=≥70, 2=55-69, 1=40-54, 0=<40 mm Hg); lowest heart rate (4=≤55, 3=56-65, 2=66-75, 1=76-85, 0=>85 bpm). Total 9-10 low risk; ≤4 very high risk for major complication or death within 30 days.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

mL
mm Hg
bpm

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Sum of three sub-scores (EBL, MAP, HR), max = 10.

In depth

Compute the Surgical Apgar Score (Gawande et al. 2007), a 10-point post-operative risk-of-major-complication score from three intra-op variables: estimated blood loss (4=≤100, 3=101-600, 2=601-1000, 1=1001-2000, 0=>2000 mL); lowest mean arterial pressure (3=≥70, 2=55-69, 1=40-54, 0=<40 mm Hg); lowest heart rate (4=≤55, 3=56-65, 2=66-75, 1=76-85, 0=>85 bpm). Total 9-10 low risk; ≤4 very high risk for major complication or death within 30 days.