Calc Function

    • Calcs that help predict probability of a diseaseDiagnosis
    • Subcategory of 'Diagnosis' designed to be very sensitiveRule Out
    • Disease is diagnosed: prognosticate to guide treatmentPrognosis
    • Numerical inputs and outputsFormula
    • Med treatment and moreTreatment
    • Suggested protocolsAlgorithm

    Disease

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    Patent Pending

    Preoperative Mortality Predictor (PMP) Score

    Predicts risk of perioperative mortality in general surgery patients.
    Favorite
    When to Use
    Pearls/Pitfalls
    Why Use

    Use in patients ≥18 years old undergoing general surgery (elective or emergent).

    • Study looked at ACS NSQIP data for 7 operations: open pancreas, open/laparoscopic colorectal, hernia (ventral, umbilical, or inguinal), and gallbladder surgeries.
    • Similar to POSSUM and APACHE II scoring systems, though with fewer variables. We are not aware of any head-to-head studies comparing this score to the others.

    • Uses easily obtainable information preoperatively.

    • Derived to aid in preoperative counseling and discussions of informed consent.

    No
    0
    Yes
    +6
    No
    0
    Yes
    +4
    No
    0
    Yes
    +3
    No
    0
    Yes
    +1
    <65
    0
    65-69
    +0.5
    70-79
    +1
    ≥80
    +2
    No
    0
    Yes
    +5
    No
    0
    Yes
    +3
    No
    0
    Yes
    +1
    No
    0
    Yes
    +1
    No
    0
    Yes
    +1
    No
    0
    Yes
    +1
    No
    0
    Yes
    +1
    No
    0
    Yes
    +1
    No
    0
    Yes
    -1

    Result:

    Please fill out required fields.

    Next Steps
    Evidence
    Creator Insights

    Advice

    Could potentially be used as a measure of systems quality.

    Formula

    Addition of the selected points:

    Variable

    Points

    Inpatient

    No

    0

    Yes

    6

    Sepsis

    No

    0

    Yes

    4

    Poor functional status (total assistance required for all daily activities)

    No

    0

    Yes

    3

    Disseminated cancer

    No

    0

    Yes

    1

    Age, years

    <65

    0

    65-69

    0.5

    70-79

    1

    ≥80

    2

    Cardiac comorbidity (dyspnea and CHF history, past MI or angina, peripheral artery disease, hypertension requiring medication)

    No

    0

    Yes

    5

    Pulmonary comorbidity (on ventilator, COPD history, current pneumonia)

    No

    0

    Yes

    3

    Renal comorbidity (dialysis, renal failure)

    No

    0

    Yes

    1

    Liver comorbidity (ascites, esophageal varices)

    No

    0

    Yes

    1

    Steroids for chronic condition

    No

    0

    Yes

    1

    Weight loss (>10% body weight in last 6 months)

    No

    0

    Yes

    1

    Bleeding disorder

    No

    0

    Yes

    1

    DNR status

    No

    0

    Yes

    1

    Obesity

    No

    0

    Yes

    -1

    Facts & Figures

    Interpretation:

    PMP Score

    Risk of perioperative mortality

    -1-5

    0.1%

    6-10

    0.6%

    11-15

    2.4%

    16-20

    12.6%

    21-25

    37.5%

    26-30

    40.0%


    Dr. Sachin Vaid

    About the Creator

    Sachin Vaid, MD, MS, MRCS, FACS, FASCRS, is a general and colorectal surgeon at the Christiana Institute of Advanced Surgery (CHRIAS). He is also a clinical assistant professor at Thomas Jefferson University Hospital. Dr. Vaid’s primary research is focused on laparoscopic and robotic colorectal surgery.

    To view Dr. Sachin Vaid's publications, visit PubMed