Aortic Regurgitation Severity
Assess aortic regurgitation severity using ACC/AHA 2020 integrated criteria: qualitative grade, vena contracta width, PISA EROA, regurgitant volume, regurgitant fraction, and holodiastolic aortic flow reversal. Pressure half-time (PHT) is contextual — it is not a primary AR severity signal. Includes acute AR red flag screening and LV staging context for severe grades.
Input
Enter available values — partial input is supported.
AR severity parameters
These 5 parameters (qualitative grade, VC width, EROA, regurgitant volume, regurgitant fraction) plus holodiastolic aortic flow reversal drive the primary AR grade. PHT and LV data are supporting context only.
Qualitative AR grade
Severe ≥ 0.60 cm
Severe ≥ 0.30 cm²
Severe ≥ 60 mL/beat
Severe ≥ 50%
Holodiastolic aortic flow reversal
Context only — not a primary AR severity criterion
Severity assessment
Enter AR severity parameters to assess
Enter AR severity parameters to assessEnter AR severity parameters to receive an assessment. LV data and PHT alone cannot classify AR severity.
Next step
- →Enter AR severity parameters (qualitative grade, vena contracta, EROA, regurgitant volume, regurgitant fraction, holodiastolic flow reversal) to receive a severity grade
- →Assess LV ejection fraction and dimensions (LVEdd, LVEsd); serial echocardiographic follow-up is essential for managing AR timing decisions
Learn the echo reasoning pathway
Review how valve severity, LV function, filling pressures, and intraoperative TEE findings connect in perioperative echo assessment.