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🫁 Pulmonary Vascular Resistance Index (PVRI)

UseWhen to use: pulmonary hypertension hemodynamics with CI available.

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StrataElevated PVRI/WU·m² supports pre-capillary afterload cues with PH definitions.

LimitsWhen not to use: inaccurate wedge. · Pitfall: mixing Wood vs dynes. · Needs full PH context.

SourceStandard PVRI 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.

Scene next step
📋circ hemoOpen scene pack →
Related scores
Score + version; reference only — not a substitute for care · no HIS write

Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.

Methodology · worked example, guidelines & full notes
Clinical takeaway

80×TPG/CI.

When to use

When to use: pulmonary hypertension hemodynamics with CI available.

How it works

PVRI = 80 × (mPAP − PAWP) / CI.

Key points

  • 80×TPG/CI.
  • Also show WU·m².
  • Next: PH phenotype.

References

  • Standard PVRI 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.

Mean PA pressure (mPAP)28 mmHg
PAWP / PCWP12 mmHg
Cardiac index (CI)2.5 L/min/m²

→PVRI512dyn·s·cm⁻⁵·m²

  • Indexed Wood units：6.40 WU·m²
  • TPG：16.0 mmHg
  • Cue：>=3 WU·m² — elevated indexed PVR band (PH workup cue)
Verification & sources · governance
FAQ

Frequently asked questions

Does Pulmonary Vascular Resistance Index (PVRI) 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 Vascular Resistance Index (PVRI) calculated in practice? Can you show a worked example?
Inputs: Mean PA pressure (mPAP) 28 mmHg, PAWP / PCWP 12 mmHg, Cardiac index (CI) 2.5 L/min/m² → Result: PVRI 512 dyn·s·cm⁻⁵·m²（Indexed Wood units: 6.40 WU·m², TPG: 16.0 mmHg, Cue: >=3 WU·m² — elevated indexed PVR band (PH workup cue)）
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