© 2018 Kurt Pfeifer.

When You Cannot Find a Surgical Procedure in the MACE Risk Calculators

Do the following (author's advice):

  1. Look for a similar procedure

  2. If no similar procedure, there is a good chance it is a low-risk procedure since many of these are not contained in the ACS Surgical Risk Calculator. You can assume the procedure is low-risk if it meets the following criteria:

    • Duration <2 hours​

    • Blood loss <100 cc

    • Outpatient surgery

  3. If the above criteria are not met or the patient is scheduled for general anesthesia and has known cardiovascular disease, proceed to next step in algorithm (assessment of functional capacity).​