PVR / SVR

Name: PVR / SVR
Creator: Daniel Diaz-Gil, MD
Keywords: PVR, SVR, pulmonary vascular resistance, systemic vascular resistance, PVRi, SVRi, Wood units, indexed resistance, cardiac catheterization, pulmonary hypertension, Eisenmenger

Calculates indexed pulmonary and systemic vascular resistance with PVR/SVR ratio

Clinically Verified· 5 tests

For educational and informational purposes only. Verify all results before clinical application.

Mean PA Pressure (mPAP) *

mmHg

Mean pulmonary artery pressure (mmHg)

Pulmonary Capillary Wedge Pressure (PCWP) *

mmHg

Pulmonary capillary wedge pressure or left atrial mean pressure (mmHg)

Mean Aortic Pressure (mAoP) *

mmHg

Mean aortic or systemic arterial pressure (mmHg)

Mean RA Pressure (mRAP) *

mmHg

Mean right atrial pressure (mmHg)

Cardiac Output *

L/min

Body Surface Area (BSA) *

m²

Body surface area in m² — calculate using BSA calculator if needed Body Surface Area (BSA)

References

Ivy DD, Abman SH, Barst RJ, et al. Pediatric Pulmonary Hypertension. J Am Coll Cardiol. 2013;62(25 Suppl):D117-D126.[DOI]
Grossman W, Baim DS. Cardiac Catheterization, Angiography, and Intervention. 8th ed. Lippincott Williams & Wilkins; 2014.

Reviewed by Daniel Diaz-Gil, MD · Last updated March 2026

Medical disclaimer

This tool is for educational and informational purposes only. It is not a substitute for professional clinical judgment. Always independently verify results before making clinical decisions.

Professional Resources — Tools used by pediatricians for vascular resistance calculation

Grossman's Cardiac Catheterization HandbookEssential hemodynamic assessment and cath lab reference~$70via Amazon Hemodynamic Rounds, KernCase-based hemodynamic interpretation for the cath lab~$70via Amazon Park's Pediatric Cardiology for Practitioners, 7th EdComprehensive reference for pediatric cardiology evaluation and management~$95via Amazon