The Cardiovascular
ToolsCalculators

Pulmonary Embolism Severity Index (PESI)

30-day mortality risk in acute pulmonary embolism.

Pulmonary Embolism Severity Index (PESI)
Age
years
Sex
History of cancer
History of heart failure
Chronic lung disease
Heart rate ≥110 /min
Systolic blood pressure <100 mmHg
Respiratory rate ≥30 /min
Temperature <36 °C
Altered mental status
Oxygen saturation <90%
Complete the fields above to see the result.

When to use

  • Confirmed acute pulmonary embolism, to identify patients at low risk who may be suitable for outpatient treatment.

Formula

Age in years + weighted points for the ten listed variables.

References

  1. Aujesky D, et al. Derivation and validation of a prognostic model for pulmonary embolism. Am J Respir Crit Care Med. 2005;172(8):1041–6.