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🫀 Pulmonary Artery Pulsatility Index (PAPi)

UseWhen to use: RV function / LVAD planning adjunct with PA catheter or RHC.

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StrataLower PAPi → weaker RV pulsatility cue relative to filling pressure.

LimitsWhen not to use: unreliable RAP zero. · Pitfall: asynchronous pressure readings. · Not a stand-alone RV-failure diagnosis.

SourceStandard PAPi hemodynamic definition

Runs locally in your browser (no PHI uploaded). For licensed clinicians — not a substitute for clinical judgement.
Stored on this device for revisit reminders

This-shift next steps

After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.

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Methodology · worked example, guidelines & full notes
Clinical takeaway

(PASP−PADP)/RAP.

When to use

When to use: RV function / LVAD planning adjunct with PA catheter or RHC.

How it works

PAPi = (PASP − PADP) / RAP.

Key points

  • (PASP−PADP)/RAP.
  • RV afterload adjunct.
  • Next: CI, CVP, echo RV.

References

  • Standard PAPi hemodynamic definition

Worked calculation

The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.

PA systolic pressure (PASP)35 mmHg
PA diastolic pressure (PADP)18 mmHg
RAP / CVP10 mmHg

→PAPi1.70

  • PA pulse pressure：17.0 mmHg
  • Cue：0.9–1.85 — intermediate band (interpret with CI, CVP, clinical RV)
Verification & sources · governance
FAQ

Frequently asked questions

Does Pulmonary Artery Pulsatility Index (PAPi) upload patient data? Where is it calculated?
Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
How is Pulmonary Artery Pulsatility Index (PAPi) calculated in practice? Can you show a worked example?
Inputs: PA systolic pressure (PASP) 35 mmHg, PA diastolic pressure (PADP) 18 mmHg, RAP / CVP 10 mmHg → Result: PAPi 1.70（PA pulse pressure: 17.0 mmHg, Cue: 0.9–1.85 — intermediate band (interpret with CI, CVP, clinical RV)）
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