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Pulmonary Embolism Severity Index PESI

Predicts 30-day outcome of patients with pulmonary embolism using 11 clinical criteria.

  • In the setting of a patient diagnosed with PE, the PESI can be utilized to determine mortality and long term morbidity.
  • For those determined to be very low risk (score ≤ 65), all studies showed a 30-day mortality <2%.
  • In the validation, low risk (Class I and II) had a 90-day mortality of 1.1%.
  • The non-inferiority trial demonstrated Class I and II could have been treated as outpatients assuming no other issues.