Simplified PESI (Pulmonary Embolism Severity Index)

Predicts 30-day outcome of patients with pulmonary embolism with fewer criteria than the original Pulmonary Embolism Severity Index.

Patient Age > 80 years old? +1
History of Cancer? +1
History of chronic cardiopulmonary disease? +1
Heart Rate ≥ 110? +1
Systolic Blood Pressure < 100 mmHg? +1
O2 Saturation < 90%? +1
Patient has none of these
Simplified PESI Risk Class

From the below study: "This study shows that the simplified PESI successfully predicts 30-day mortality after acute symptomatic PE. Compared with the original PESI, the simplified PESI has similar prognostic accuracy. The simplified score had good discrimination and calibration, and an external data set validated the generalizability of its predictive accuracy."

Note: While the Simplified PESI was applied to a group of patients with data that was collected prospectively, the rule itself has not been validated in a newly-prospective cohort.









The NNT : Quick Summaries of Evidence-Based Medicine