Simplified PESI (Pulmonary Embolism Severity Index)
Predicts 30-day outcome of patients with PE, with fewer criteria than the original PESI.
Advice
- This tool should be used to inform, not dictate, clinical decisions.
- Even if a patient is classified as low risk, outpatient management is only appropriate if the patient has adequate social support and reliable access to follow-up and anticoagulation.
- Given the low mortality and morbidity in the low-risk group, outpatient management can be considered cost-effective and safe.
- Clinicians should remain vigilant for changes in the patient’s condition and reassess if new risk factors emerge.
Management
- Low Risk (sPESI Score = 0):
- The patient has a very low risk of mortality (1.1%) and severe morbidity (1.5%).
- Outpatient management may be considered if:
- Anticoagulation may be safely administered and monitored at home.
- Social support and follow-up are available.
- The patient is clinically stable and has no contraindications to outpatient care; close follow-up should be arranged.
- High Risk (sPESI Score ≥ 1):
- The patient has a higher risk of mortality (8.9%) and morbidity (2.7%).
- Inpatient management and close monitoring are generally warranted unless contraindications exist or social circumstances demand alternative arrangements.
- Refer to institutional protocols and clinical guidelines for detailed management of PE.
Critical Actions
- Only valid for risk stratification after a diagnosis of PE has been confirmed; do not use to assess risk in patients who do not have a confirmed diagnosis.
- Even with a low score, do not overlook other serious pathology or clinical instability that may increase risk.
- If a patient’s clinical status deteriorates at any point, reassess and consider hospitalization regardless of the initial score result.
- Ensure that all patients, especially those managed at home, have clear plans for monitoring, anticoagulation, and follow-up.